Hioki 8860 Manual 

2 8860 8861 This Guide describes the optional input mod- ules, related cable connection procedures, and their settings and specifications.

When installing 4 or more Model 8946 and Model 8958 at the same time 1 UNIT 4 5 8 1 UNIT 4 5 8 1 UNIT 4 5 8 OK Do not install 4 units of Model 8946 to the UNIT 1-4 slots. 1 UNIT 4 5 8 4 units of Model 8946 can be installed to the UNIT 1-4 slots. Other than Model 8958 Only a maximum of 3 units of Model 8946 can be installed in the UNIT 1-4 slots. When Model 8958 is not installed OK 8946 8946 8958 8946 8946 8958 8946 8958 IMPORTANT: When Model 8958 16ch SCANNER UNIT and 4 or more units of Model 8946 4ch ANALOG UNIT are installed in Model 8861 at the same time, only a maximum of 3 units of Model 8946 can be installed to the UNIT 1-4 slots of Model 8861. Number of input units 1 UNIT 4 5 8 1 UNIT 4 5 8 5 6 7 8 1 2 3 4 Recommended positions for installing input units Balanced installation of input units in the UNIT 1-4 and 5-8 slots is recommended in order to effectively utilize the internal memory of Model 8861. Number of input units

As much as possible, install an equal number of units to the UNIT 1-4 and 5-8 slots. Yes Installation completed. No Up to 3 units of Model 8946 can be installed to the UNIT 1-4 slots. As much as possible, install an equal number of units to the UNIT 1-4 and 5-8 slots. Will model 8958 be installed? Will 4 or more units Model 8946 be installed? As much as possible, install an equal number of units to the UNIT 1-4 and 5-8 slots. 1 UNIT 4 5 8 1 UNIT 4 5 8 8958 1 UNIT 4 5 8 8958 8946 8946 Installation example Yes No Installation example Installation example

Chapter 1 Overview___________________________________ 5 1.1 Product Overview ................................................................5 1.2 Input Module Usage List .....................................................9 1.3 List of Input Modules, Cables, Probes and Clamp Combinations ....................................................................11 Chapter 2 Connections _______________________________ 13 2.1 Installing Input Modules (Adding or Replacing) ................14 2.2 Connecting the Cables ......................................................16 2.2.1 Connection Preparations .......................................................16 2.2.2 Connecting to an Analog Unit (Models 8936, 8938, 8946, 8956 and 8957) ..........................17 2.2.3 Connecting to the Model 8937 Voltage/Temp Unit ................18 2.2.4 Connecting to a Strain Unit (Models 8939 and 8960) ............20 2.2.5 Connecting to the Model 8940 F/V Unit .................................21 2.2.6 Connecting to the Model 8947 Charge Unit .........................24 2.2.7 Connecting to the Model 8958 16-Ch Scanner Unit ..............26 2.2.8 Connecting to the Model 8959 DC/RMS Unit ........................28 2.3 Connecting Clamps ...........................................................29 2.4 Connecting a Differential Probe ........................................31 2.5 Connecting Attenuating Probes ........................................35 2.6 Connecting Logic Probes ..................................................37 2.7 Supplying power from the Model 9687 Probe Power Unit 41 Chapter 3 Input Channel Settings ______________________ 43 3.1 Analog Unit Settings (Models 8936, 8946 and 8956) .......44 3.2 Model 8937 Voltage and Temperature Unit Settings ........45 3.2.1 Voltage Measurement ...........................................................45 3.2.2 Temperature Measurement ...................................................46 3.3 Model 8938 FFT Analog Unit Settings ..............................48 3.4 Strain Unit Settings (Models 8939 and 8960) ...................49 3.5 Model 8940 F/V Unit Settings ...........................................50

3.5.2 Pulse Count Measurement ................................................... 52 3.5.3 Pulse Duty Measurement ...................................................... 53 3.5.4 Voltage Measurement ........................................................... 54 3.5.5 Current Measurement ........................................................... 55 3.6 Model 8947 Charge Unit Settings .....................................56 3.6.1 Voltage Measurement ........................................................... 56 3.6.2 Acceleration Measurement (Charge, Preamp) ..................... 57 3.7 Model 8957 High Resolution Unit Settings .......................59 3.8 Model 8958 16-Ch Scanner Unit Settings ........................60 3.8.1 Voltage Measurement ........................................................... 60 3.8.2 Temperature Measurement .................................................. 61 3.9 Model 8959 DC/RMS Unit Settings ..................................63 3.10 About Setting Contents .....................................................64 3.10.1 Measurement Range Setting ............................................... 64 3.10.2 Setting Input Coupling ........................................................... 65 3.10.3 Low-Pass Filter (LPF) Settings ............................................. 66 3.10.4 Anti-Aliasing Filter (AAF) Settings ......................................... 67 3.10.5 Digital Filter (Digital F) Settings ............................................ 67 3.10.6 Thermocouple (Sensor) Type Setting ................................... 68 3.10.7 Reference Junction Compensation Setting ........................... 68 3.10.8 Drift Correction Setting .......................................................... 69 3.10.9 Disconnect (Burn-Out) Detection Setting .............................. 69 3.10.10 Hold Setting .......................................................................... 70 3.10.11 Pull-Up Setting ...................................................................... 71 3.10.12 Threshold Setting .................................................................. 72 3.10.13 Response (Timing) Setting ................................................... 72 3.10.14 Sensor Sensitivity Setting ..................................................... 73 3.10.15 Probe Attenuation Selection ................................................. 75 3.10.16 Bridge Voltage Setting .......................................................... 75 3.10.17 Executing Zero Adjustment ................................................... 76 3.10.18 Executing Offset Cancellation ............................................... 76 3.10.19 Executing Auto-Balance ........................................................ 78 Chapter 4 Logic Input Settings_________________________79 4.1 Operation Overview ..........................................................79 4.2 Setting Procedure .............................................................80 Chapter 5 Specifications______________________________83 5.1 Logic Input Section ...........................................................83 5.1.1 Model 9327 Logic Probe ....................................................... 83 5.1.2 Model 9321-01 Logic Probe .................................................. 84 5.1.3 Model 9320-01 Logic Probe .................................................. 85

5.2.1 Model 8936 Analog Unit ........................................................86 5.2.2 Model 8937 Voltage/Temp Unit .............................................88 5.2.3 Model 8938 FFT Analog Unit .................................................90 5.2.4 Model 8939 Strain Unit ..........................................................91 5.2.5 Model 8940 F/V Unit ..............................................................92 5.2.6 Model 8946 4-Ch Analog Unit ...............................................94 5.2.7 Model 8947 Charge Unit ........................................................95 5.2.8 Model 8956 Analog Unit ........................................................97 5.2.9 Model 8957 High Resolution Unit ..........................................98 5.2.10 Model 8958 16-Ch Scanner Unit ...........................................99 5.2.11 Model 8959 DC/RMS Unit ...................................................101 5.2.12 Model 8960 Strain Unit ........................................................102 Index ________________________________ Index1

HiCorders. Refer to them as appropriate for your application. Which input module and cables to use with the instrument depend on your mea- surement application. Refer to this as appropriate for your application. (⇒ p. 3) • In this document, the “instrument” means the Model 8860 or 8861 Memory HiCorder. • “Clamp” refers to one of our optional clamp-on sensor products. Introduction Document Description 1 Quick Start Manual Read this first. It describes preparations for use, basic operating pro- cedures and usage methods. 2 Input Module Guide (This document) To connect input modules and measurement cables, and when making input channel set- tings; this Guide describes the optional input modules, relat- ed cable connection procedures, and their settings and specifications. 3 Instruction Manual To obtain setting details; this Manual describes details of the functions and op- erations of the instrument, and its specifications. 4 Analysis Supplement The supplement describes usage of the cal- culation functions to analyze measurement data.

and warnings. Accuracy We define measurement tolerances in terms of f.s. (full scale) values, with the following meanings: f.s. (maximum display value or scale length) The maximum displayable value or scale length. This is usually the name of the currently selected range. In this instrument, the maximum displayable value is the range (V/div) times the number of divisions (20) on the vertical axis. Example: For the 1 V/div range, f.s. = 20 V Safety Symbols In the manual, the symbol indicates particularly important informa- tion that the user should read before using the instrument. The symbol printed on the instrument indicates that the user should refer to a corresponding topic in the manual (marked with the symbol) before using the relevant function. Indicates DC (Direct Current). Indicates AC (Alternating Current). Indicates both DC (Direct Current) and AC (Alternating Current). Indicates a grounding terminal. Indicates that incorrect operation presents an extreme hazard that could result in serious injury or death to the user. Indicates that incorrect operation presents a significant hazard that could result in serious injury or death to the user. Indicates that incorrect operation presents a possibility of injury to the user or damage to the instrument. Indicates advisory items related to performance or correct operation of the instrument. Other Symbols Indicates the prohibited action. (⇒ p. ) Indicates the location of reference information. Indicates quick references for operation and remedies for troubleshoot- ing. * Indicates that descriptive information is provided below. [ ] Screen labels such as menu items, page titles, setting items, dialog titles and buttons are indicated by square brackets [ ]. CURSOR (Bold characters) Bold characters within the text indicate operating key labels.

3 Structure of this Document Preparation Reference Location Overview of Input Modules and Logic Groups About the overview of input mod- ules and logic groups "1.1 Product Overview" (⇒ p. 5) Overview of usage, connections and settings "1.2 Input Module Usage List" (⇒ p. 9) Input module connections "1.3 List of Input Modules, Cables, Probes and Clamp Combinations" (⇒ p. 11) Specifications of input modules and logic probes "Chapter 5 Specifications" (⇒ p. 83) Procedure Reference Location Connections Connecting the input modules, cables and logic probes to the instrument "Chapter 2 Connections" (⇒ p. 13) Refer to the Quick Start Manual for other connections. Turn Power On Instrument Settings (input channel settings) (When using an input module) Set analog channels "Chapter 3 Input Channel Settings" (⇒ p. 43) (When using a logic probe) Set logic channels "Chapter 4 Logic Input Settings" (⇒ p. 79) In addition to the above, perform necessary measurement settings such as measure- ment criteria and trigger settings. Refer to the Quick Start Manual for overviews of all operations. Refer to the Instruction Manual for details of settings other than those related to input channels. Measure

4 Maximum Input Voltage*1 of input module and Maximum Rated Voltage to Ground*2 This Instrument Input Module GND 400 VDC max 370 VAC/DC H L 370 VAC/DC Model 8936 Analog Unit Model 8938 FFT Analog Unit Model 8959 DC/RMS Unit *2 *2 *1 This Instrument Input Module GND 400 VDC max 300 VAC/DC H L 300 VAC/DC Model 8956 Analog Unit Model 8957 High Resolution Unit *1 *2 *2 This Instrument Input Module GND 30 Vrms or 60 VDC 30 Vrms or 60 VDC H L 30 Vrms or 60 VDC Model 8937 Voltage/Temp Unit Model 8946 4-Ch Analog Unit *2 *2 *1 This Instrument Input Module GND 10 VDC max 30 Vrms or 60 VDC H L 30 Vrms or 60 VDC Model 8939 Strain Unit *2 *2 *1 This Instrument Input Module GND DC10 V max 33 Vrms or 70 VDC H L 33 Vrms or 70 VDC Model 8960 Strain Unit *2 *2 *1 This Instrument Input Module GND 30 Vrms or 60 VDC 30 Vrms or 60 VDC H L 30 Vrms or 60 VDC 30 Vrms or 60 VDC H L Connectors BNC Model 8940 F/V Unit *2 *2 *1 *2 *1 This Instrument Input Module GND Maximum applied elec- tric charge (⇒ p. 95) 30 Vrms or 60 VDC H L 30 Vrms or 60 VDC 30 Vrms or 60 VDC H L BNC Miniature Connector Common Model 8947 Charge Unit *2 *1 *2 This Instrument Input Module GND 40 VDC max 33 Vrms or 70 VDC + − 33 Vrms or 70 VDC Model 8958 16-Ch Scanner Unit *2 *1 *2

5 This chapter provides an overview of the optional input modules and input cables that can be used with this instrument. Refer to "Appendix 6 Disposing of the Instrument" in the Instruction Manual for a full list of options for this instrument. Also refer to "Maximum Input Voltage*1 of input module and Maximum Rated Voltage to Ground*2" (⇒ p. 4) Overview Chapter 1 1.1 Product Overview Voltage Measurement Input Module 8956 Analog Unit 8957 High Resolution Unit 8936 Analog Unit 8946 4-Ch Analog Unit 2 channels, 20 MS/s, 12-bit, maximum input voltage: 400 VDC High-speed type 2 channels, 2 MS/s, 16-bit, maximum input voltage: 400 VDC Supports high-precision mea- surements. (Includes internal anti-aliasing filter.) 2 channels, 1 MS/s, 12-bit, maximum input voltage: 400 VDC 4 channels, 1 MS/s, 12-bit, maximum input voltage: 30 Vrms/60 VDC 8938 FFT Analog Unit 8959 DC/RMS Unit 8940 F/V Unit 8937 Voltage/Temp Unit 2 channels, 1 MS/s, 12-bit, maximum input voltage: 400 VDC (Includes internal anti-alias- ing filter.) 2 channels, 1 MS/s, 12-bit, maximum input voltage: 400 VDC Measures both normal and RMS voltages. 2 channels, 1 MS/s, 12-bit, maximum input voltage: 30 Vrms/60 VDC In addition to voltage, also measures current, frequen- cy, rotation rate, pulse total- ization and duty cycle. 2 channels, 1 MS/s, 12-bit, maximum input voltage: 30 Vrms/60 VDC Measures temperature in addition to voltage. 8958 16-Ch Scanner Unit 8947 Charge Unit 16 channels, 20 S/s, 16-bit, maximum input voltage: 40 VDC In addition to voltage, also supports temperature mea- surement. 2 channels, 1 MS/s, 12-bit, maximum input voltage: 30 Vrms/60 VDC In addition to voltage, also supports measurements with piezoelectric acceleration sensors. (Includes internal anti-aliasing filter.)

6 Refer to "1.3 List of Input Modules, Cables, Probes and Clamp Combinations" (⇒ p. 11) for combinations of cables and probes to connect to an input module. Input cables for voltage measurement with input modules (except the Model 8958 16-Ch Scanner Unit) 9197 Connection Cord 9198 Connection Cord 9217 Connection Cord For high voltage, maximum input volt- age: 500 V (large alligator clips) For low voltage, maximum input volt- age: 300 V (small alligator clips) Maximum input voltage: 300 V (for BNC output) 9322 Differential Probe 9665 10:1 Probe 9666 100:1 Probe For high voltage, maximum input volt- age: (CAT II): 2000 VDC, 1000 VAC, (CAT III): 600 VAC/DC Applicable Modules: • Model 8940 F/V Unit • Input modules for voltage measurement (except the Model 8958 16-Ch Scanner Unit) To connect to an input module, the fol- lowing separate items are required: • Model 9325 Power Cord (when using the Model 8940) • Model 9418-15 AC Adapter • Model 9248 Power Cord (when using the Model 9687) Maximum input voltage: 1 kVrms (1 MHz or less) Applicable Modules: • Model 8936 Analog Unit • Model 8938 FFT Analog Unit • Model 8956 Analog Unit • Model 8957 High Resolution Unit • Model 8959 DC/RMS Unit Maximum input voltage: 5 kVpeak (1 MHz or less) Applicable Modules: • Model 8936 Analog Unit • Model 8938 FFT Analog Unit • Model 8956 Analog Unit • Model 8957 High Resolution Unit • Model 8959 DC/RMS Unit Temperature Measurement (Thermocouple Inputs) Input Module 8937 Voltage/Temp Unit 8958 16-Ch Scanner Unit 2 channels, 4 kS/s, 12-bit Thermocouple Types: K, E, J, T, N, R, S, B In addition to temperature, also sup- ports voltage measurement. 16 channels, 20 S/s, 16-bit Thermocouple Types: K, E, J, T, N, R, S, B, W In addition to temperature, also sup- ports voltage measurement.

7 *1. Except for Models 9018-10 and 9132-10, a separate conversion cable or power supply is required when connecting to an input module. Refer to "1.3 List of Input Modules, Cables, Probes and Clamp Combinations" (⇒ p. 11) for details. *2. Up to 15 A when combined with the Model 8940 F/V Unit. *3. Not applicable to CE Marking Current Measurement Input Module Input modules for voltage measurement (except the Model 8958 16-Ch Scanner Unit) 8940 F/V Unit Current can be measured using a clamp. 2 channels, 1 MS/s, 12-bit, clamp input In addition to current, also measures voltage, frequency, rotation rate, pulse totalization and duty cycle. Refer to "Voltage Measurement" (⇒ p. 5) for in- put modules. Measures in [Voltage] mode. Clamps compatible with the above input modules. 9018-10 Clamp-On Probe 9132-10 Clamp-On Probe*3 3273 Clamp-On Probe *1 3273-50 Clamp-On Probe*1 3274 Clamp-On Probe *1 3275 Clamp-On Probe *1 3276 Clamp-On Probe *1 9270 Clamp-On Sensor *1, *3 9271 Clamp-On Sensor *1, *3 9272 Clamp-On Sensor *1, *3 For AC Outputs 0.2 V AC waveform of com- mercial power line current. 9018-10: 10 to 500 A, 40 Hz to 3 kHz 9132-10: 20 to 1000 A, 40 Hz to 1 kHz AC/DC Supports high-accuracy observation over broad ranges from DC to MHz. 3273: 15 A, DC to 50 MHz 3273-50: 30 A*2, DC to 50 MHz 3274: 150 A, DC to 10 MHz 3275: 500 A, DC to 2 MHz 3276: 30 A, DC to 100 MHz For AC Supports inverter secondary current measurement. 9270: 20 A, 5 Hz to 50 kHz 9271: 200 A, 5 Hz to 50 kHz 9272: 20/200 A, 5 Hz to 10 kHz For users of the following legacy products: • Model 9018 Clamp-On Probe • Model 9132 Clamp-On Probe Usable with this instrument by connecting the Model 9199 Conversion Adapter. For measuring leakage current: The Model 9657-10 Clamp-On Leak Sensor can also be used. 9277 Universal Clamp-On CT *1 9278 Universal Clamp-On CT *1 9279 Universal Clamp-On CT *1,*3 AC/DC Low zero drift supports stable long- term measurements. 9277: 20 A, DC to 100 kHz 9278: 200 A, DC to 100 kHz 9279: 500 A, DC to 20 kHz 9018-10 9132-10 3273 and 3276 3274 and 3275 9270 and 9271 9272 9277 9278 9279

8 Frequency, Rotation Rate, Commercial Line Frequency (50/60 Hz), Pulse Count, Pulse Duty Measurement Acceleration Measurement Input Module 8940 F/V Unit 8947 Charge Unit 2 channels, 1 MS/s, 12-bit • Frequency: can be measured from the input pulse corresponding to the measurement waveform. • Rotation Rate: can be measured from the input pulse correspond- ing to the measurement waveform. • 50/60 Hz: Frequencies near 50/60 Hz can be measured from the input pulse corresponding to the measurement waveform. • Totalization: cumulative count of input pulses. • Pulse Duty: measured as the percentage of High level of a single pulse waveform. 2 channels, 1 MS/s, 12-bit • Electric Charge: can be measured using a voltage-output type acceleration pick-up sensor. • Preamp: can be measured using an accel- eration pick-up sensor with built-in preamp. Also supports voltage measurement. Electric Charge, Pressure, Torque, Displacement Measurement Input Module 8939 Strain Unit 8960 Strain Unit 2 channels, 1 MS/s, 12-bit Vibration and displacement can be measured using a strain gauge trans- ducer. (conversion cable supplied) 2 channels, 200 kS/s, 16-bit Vibration and displacement can be measured using a strain gauge trans- ducer. Supports high-precision mea- surements. (Includes internal anti- aliasing filter.) (conversion cable sup- plied) Logic Signal Measurement Logic probes that can be connected to this instrument 9320-01 Logic Probe 9321-01 Logic Probe 9327 Logic Probe Measures digital signals and on/off switching of non-voltage contacts. Detects the presence of AC and DC voltages. Measures activation timing of relay sequencing circuits. Maximum input voltage: 250 Vrms (HIGH range) Measures faster signals than the Mod- el 9320-01 Logic Probe. For users of the following legacy products: Models 9306, 9307, 9320, 9321 Logic Probes Usable with this instrument by connecting the Model 9323 Conversion Cable.

9 Voltage Measurement Temperature Measurement 1.2 Input Module Usage List To Perform This Measurement Recommended Input Module Use to connect Connection Procedure Setting Procedure Up to 400 V Up to 2 channels per module Model 8936 Analog Unit Model 9197 Connection Cord (Up to 500 V) Model 9198 Connection Cord (Up to 300 V) Model 9217 Connection Cord (Up to 300 V) (⇒ p. 17) (⇒ p. 44) For faster sampling Model 8956 Analog Unit (⇒ p. 17) (⇒ p. 44) To see high-precision voltage values Model 8957 High Resolu- tion Unit (⇒ p. 17) (⇒ p. 59) To perform FFT analysis Model 8957 High Resolu- tion Unit (⇒ p. 17) (⇒ p. 59) Model 8938 FFT Analog Unit (⇒ p. 17) (⇒ p. 48) To also see RMS voltage Model 8959 DC/RMS Unit (⇒ p. 28) (⇒ p. 63) Up to 30 Vrms or 60 V DC For additional channels (four) Model 8946 4-Ch Analog Unit (⇒ p. 17) (⇒ p. 44) To measure with high sensitivity (500 µV/div) Model 8937 Voltage/ Temp Unit (⇒ p. 18) (⇒ p. 45) Model 8940 F/V Unit (⇒ p. 21) (⇒ p. 54) Model 8947 Charge Unit (⇒ p. 24) (⇒ p. 56) Up to 40 V When slow sampling is acceptable, but more channels desired Model 8958 16-Ch Scan- ner Unit Input Cable (⇒ p. 26) (⇒ p. 60) When measured voltage exceeds the maximum in- put for the Input module Up to 2000 V DC or 1000 V AC (depending on mea- surement site (⇒ p. 31) ) Above Input Modules (ex- cept the Model 8958 16- Ch Scanner Unit) Model 9322 Differential Probe *1 (⇒ p. 31) (⇒ p. 75) Up to 1000 Vrms (@1 MHz max.) Model 8936 Analog Unit Model 8956 Analog Unit Model 8957 High Resolu- tion Unit Model 8938 FFT Analog Unit Model 8959 DC/RMS Unit Model 9665 10:1 Probe *2 (⇒ p. 35) (⇒ p. 75) Up to 5000 Vpeak (@1 MHz max.) Model 9666 100:1 Probe *2 (⇒ p. 35) (⇒ p. 75) Overview of the above input modules (⇒ p. 5), description of cables (⇒ p. 6) Procedures for settings unrelated to input channels are the same. Refer to the Instruction Manual for details. *1. Voltage to ground complies with Model 9322 specifications. (⇒ p. 31) *2. Voltage to ground complies with the specifications of the input module used. (⇒ p. 86) To Perform This Measurement Recommended Input Module Use to connect Connection Procedure Setting Procedure Remarks To measure temperature Model 8937 Voltage/ Temp Unit Thermocouple (⇒ p. 18) (⇒ p. 45) Up to 2 channels can be measured per module. To measure multi-channel temperature Model 8958 16-Ch Scan- ner Unit Thermocouple (⇒ p. 26) (⇒ p. 60) Up to 16 channels can be measured per module. Overview of the above input modules (⇒ p. 6) Procedures for settings unrelated to input channels are the same. Refer to the Instruction Manual for details.

10 Current Measurement Other Measurements Logic Measurements To Perform This Measurement Recommended Input Module Use to connect Connection Procedure Setting Procedure Remarks To read current values di- rectly without complicated settings such as scaling Model 8940 F/V Unit Models 3273/ 3273-50 Clamp-On Probe Models 9270 to 9272 Clamp-On Sensor Models 9277 to 9279 Universal Clamp-On CT (⇒ p. 21) (⇒ p. 29) (⇒ p. 50) A conversion cable is required for connection (⇒ p. 11). To measure using a voltage measurement module Voltage Measure- ment Input Module Models 9018-10/ 9132-10 Clamp-On Probe Models 3273 to 3276 Clamp-On Probe Models 9270 to 9272 Clamp-On Sensor Models 9277 to 9279 Universal Clamp-On CT (⇒ p. 29) Refer to the voltage measurement description for each module Scaling is required. Depending on the clamp, a power supply or sensor unit may be required for connection (⇒ p. 11). Overview of the above input modules (⇒ p. 7), about Clamps (⇒ p. 7) Procedures for settings unrelated to input channels are the same. Refer to the Instruction Manual for details. To Perform This Measurement Recommended Input Module Use to connect Connection Procedure Setting Procedure To measure electric charge, accelera- tion, pressure, torque or displacement using a strain sensor. Model 8939 Strain Unit Model 8960 Strain Unit Conversion Cable (sup- plied) Strain Gauge Transducer (⇒ p. 20) (⇒ p. 49) To measure acceleration Model 8947 Charge Unit Piezoelectric Sensor (⇒ p. 24) (⇒ p. 57) To measure frequency Model 8940 F/V Unit Models 9198 Connection Cord 9217 Connection Cord (⇒ p. 21) (⇒ p. 50) To measure pulse counts (totalization), pulse duty and similar values Overview of the above input modules (⇒ p. 8) Procedures for settings unrelated to input channels are the same. Refer to the Instruction Manual for details. To Perform This Measurement Recommended Probe Connection Procedure Setting Procedure To measure digital signals and on/off switching of non-voltage contacts Model 9320-01 Logic Probe (⇒ p. 37), (⇒ p. 39) (⇒ p. 79) To measure larger signals than the above Model 9327 Logic Probe (⇒ p. 37), (⇒ p. 39) To measure the presence or absence of AC or DC voltage Model 9321-01 Logic Probe (⇒ p. 37), (⇒ p. 40)

11 O = Compatible, − = Incompatible, Δ = Compatible, but scaling required 1.3 List of Input Modules, Cables, Probes and Clamp Combinations Measurement Parameter Use to connect Input Module 8936 8937 8938 8939 8940 8946 8947 8956 8957 8958 8959 8960 Voltage Connection Cables 9197 O O *1 O − O *1 O *1 O *1 O O − O − 9198 O O O − O O O O O − O − 9217 O O O − O O O O O − O − Differential Probe 9322 O *3 O *3 O *3 − O *2,*9 O *3 O *3 O *3 O *3 − O *3 − Attenuating Probes 9665 9666 O − O − − − − O O − O − Input Cable − − − − − − − − − O − − RMS Values Same as above − − − − − − − − − − O − FFT Analysis (with AAF installed) Same as above − − O − − − O − O − − − Current Clamp-On Sensors *8 9270 *10 9271 *10 9272 *10 Δ*6 Δ*6 Δ*6 − O *4,*9 Δ*6 Δ*6 Δ*6 Δ*6 − Δ*6 − Universal Clamp-On CTs *8 9277 9278 9279 *10 Δ*6 Δ*6 Δ*6 − O *4,*9 Δ*6 Δ*6 Δ*6 Δ*6 − Δ*6 − Clamp-On Probes *8 3273 3273-50 Δ*7 Δ*7 Δ*7 − O *5,*9 Δ*7 Δ*7 Δ*7 Δ*7 − Δ*7 − 3274 3275 3276 Δ*7 9018-10 Δ Δ Δ − Δ Δ Δ Δ Δ − Δ − 9132-10*10 Δ Δ Δ − Δ Δ Δ Δ Δ − Δ − Acceleration Piezoelectric Sensor − − − − − − O − − − − − Temperature Thermocouple − O − − − − − − − O − − Frequency, Pulse Totalization, Pulse Duty Connection Cable (Sensor) − − − − O − − − − − − − Electric Charge, Acceleration, Pressure, Torque, Displacement Strain Gauge Transducer − − − O − − − − − − − O *1. Although compatible, the 9198 is recommended instead. To connect to the input module, the following separate items are required: *2. Model 9325 Power Cord , 9418-15 AC Adapter, or 9248 Power Cord (when using the Model 9687) *3. Model 9418-15 AC Adapter or 9248 Power Cord (when using the Model 9687) *4. Model 9318 Conversion Cable or 9555 Sensor Unit *5. Model 9319 Conversion Cable, 3272 Power Supply, 3269 Power Supply, or 9687 Probe Power Unit *6. Model 9555 Sensor Unit*9 *7. Model 3272 , 3269 Power Supply, or 9687 Probe Power Unit *8. Set the instrument to [Voltage] measurement mode when using combinations that do not include the Model 8940, and with the combination of the 8940 and Model 9018-10 or 9132-10. (⇒ p. 54) *9. Up to six units can be used with the 9325 Up to eight clamps can be used When the 9325 and clamps are used at the same time, up to eight can be used *10. Not applicable to CE Marking About Scaling settings: Voltage acquired from the sensor is converted to the corresponding physical measurement units for display. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual

instrument. Refer to the Quick Start Manual for other connections. 1 Install the input module(s) in the instrument’s input module compartment. (⇒ p. 14) 2 Connect the cables and sensors to the input module(s). Connection items differ according to your application. Refer to the description of each input module. Also refer to the following sections when measuring voltage and current: • Using Connection Cables (⇒ p. 16) (Voltage measurement) • Using Differential Probes (⇒ p. 31) (Voltage measurement) • Using Attenuating Probes (⇒ p. 35) (Voltage measurement) • Using Clamps (⇒ p. 29) (Current measurement) • Supplying the power from the Model 9687 Probe Power Unit (⇒ p. 41) 3 After making connections, make instrument settings (⇒ p. 43). This Guide describes only the procedures for setting the input channels of each input mod- ule. Refer to the Quick Start Manual for an overview of all settings, and to the Instruction Manual for the details of each setting. 1 Connect the logic probes to the LOGIC receptacles on the instrument (⇒ p. 37). 2 After connecting, perform settings on this instrument (⇒ p. 79). Connections Chapter 2 Input modules for measurement (analog inputs) • Model 8936 Analog Unit (⇒ p. 17) • Model 8937 Voltage/Temp Unit (⇒ p. 18) • Model 8938 FFT Analog Unit (⇒ p. 17) • Model 8939 Strain Unit (⇒ p. 20) • Model 8940 F/V Unit (⇒ p. 21) • Model 8946 4-Ch Analog Unit (⇒ p. 17) • Model 8947 Charge Unit (⇒ p. 24) • Model 8956 Analog Unit (⇒ p. 17) • Model 8957 High Resolution Unit (⇒ p. 17) • Model 8958 16-Ch Scanner Unit (⇒ p. 26) • Model 8959 DC/RMS Unit (⇒ p. 28) • Model 8960 Strain Unit (⇒ p. 20) Measurements with logic probes (logic inputs)

14 Input modules specified at the time the instrument is ordered are supplied prein- stalled. Use the following procedures to add or replace input modules, or to remove them from the instrument. 2.1 Installing Input Modules (Adding or Replacing) Preparations • To avoid electric shock accident, before removing or replacing an input module, confirm that the instrument is turned off and that the connection cords are disconnected. • The mounting screws must be firmly tightened or the input module may not perform to specifications, or may even fail. When an input module is not used • To avoid the danger of electric shock, never operate the instrument with an input module removed. To use the instrument after removing an input module, install a blank panel over the opening of the removed module. To avoid damaging input modules, do not touch the input module connectors on this instrument. Using the Model 8958 16-Ch Scanner Unit In the following cases, the Model 8958 must be adjusted before use with this instrument. See "Scanner Unit Zero Position Adjustment" (⇒ p. 27) • When installing the Model 8958 16-Ch Scanner Unit in this instrument • When the zero position has shifted due to aging or environmental changes When using the Model 8958 16-Ch Scanner Unit together with four Model 8946 4-Ch Analog Units at the same time, the 8946s cannot all be installed in UNIT locations 1 to 4 in the Model 8861. In this case, no more than three 8946s can be installed in UNIT locations 1 to 4. Adding an Input Module Adding an input module does not affect the Sheet Settings screen. To display waveforms from an added input module, select the corresponding dis- play channel on the Sheet Settings screen. Even when waveform display is enabled ([On]), a waveform is not displayed unless it has been enabled for dis- play on the Sheet Settings screen. See "7.2.6 Assigning Display Channels to Graphs (Analog Channels)" in the Instruction Manual 1 UNIT 4 5 8 8958 1 UNIT 4 5 8 1 UNIT 4 5 8 Installation examples (installing four Model 8946s, one 8958 and either additional input modules or blank panels) 8946 8946 8946 8946 8958 8946 8958 OK OK

15 Required item: One Phillips-head screwdriver 1 Turn the instrument’s POWER switch Off. 2 With attention to the orientation of the input module, insert it firmly all the way in. Make certain that the labels on the input module’s panel face the same direction as the labels on the right side of the instru- ment. 3 Using the Phillips screwdriver, tighten the two input module mounting screws. When the instrument is positioned vertically as illustrated, module number one is at the left, and channel number one is at the bottom. Information about the input modules installed in the instru- ment can be verified on the initial screen that appears when power is turned on, and in the [Config] menu on the System screen. Channel Configuration Module No. (UNIT) Channel (CH) Input Module Compartment UNIT1 CH1 CH2 CH3 CH4 UNIT3 UNIT2 UNIT4 CH1 CH2 8947 8946 CH1 CH4 CH16 8958 Installing an input module Right Side Removing an input module 1 Turn the instrument’s POWER switch Off. 2 Remove any cables or thermocouples connected to the input module. 3 Remove the power cord. 4 Using the Phillips screwdriver, loosen the two input module mounting screws. 5 Grasp the handle and pull the module out. If the input module has no handle, pull it out by grasp- ing the connectors. Right Side Required item: One Phillips-head screwdriver Handle (Example: 8956) Blank panel Install a blank panel. Using the Phillips screwdriver, tighten the two mount- ing screws. Measurements made without a blank panel installed may fail to meet specifications because of temperature instability within the instrument. If not installing another input module after removal Right Side

16 Read the following carefully before making connections. For voltage measurement Using cables with BNC connectors When using the Model 8958 16-Ch Scanner Unit together with other input modules 2.2 Connecting the Cables 2.2.1 Connection Preparations About maximum input ratings of input modules and cables • The maximum input voltage is the lesser rating of either the input module or the cable to be used. Do not measure if this voltage would be exceeded, as damage the instrument or a serious accident may result. Example: When connecting the Model 9197 Connection Cord (500 Vmax) to the Model 8936 Analog Unit (400 Vmax), the maximum input voltage for measurement is 400 V DC. For details of maximum input voltages, refer to "1.1 Product Overview" (⇒ p. 5) and "Chapter 5 Specifications" (⇒ p. 83). • When connecting clip-type test leads to live terminals, be very careful to avoid accidentally shorting conductors together and causing a serious accident. • When measuring voltage in a power line, connection cables should only be connected to the secondary side of a breaker, so the breaker can pre- vent an accident if a short circuit occurs. Connections should never be made to the primary side of a breaker, because unrestricted current flow could cause a serious accident if a short circuit occurs. • Do not permanently connect the device in an environment where voltage surges exceeding the maximum input voltage may occur. Failure to observe this precaution could result in damage to the device and per- sonal injury. • Do not use cables other than those specified by Hioki. The specified cables include insulated BNC plugs to avoid electric shock. An uninsu- lated BNC plug may cause electric shock or damage to the BNC jack. • Do not connect a cable to the instrument while it is connected to the object to be measured. Otherwise, an electric shock accident may occur. Use only the specified connection cords. Using a non-specified cable may result in incorrect measurements due to poor connection or other reasons. When disconnecting the BNC connector, be sure to release the lock before pull- ing off the connector. Forcibly pulling the connector without releasing the lock, or pulling on the cable, can damage the connector. Do not attempt to measure the same signal with the 8958 and another input module at the same time. Channel switching noise from the 8958 may affect the other input module.

17 Be sure to read "2.2.1 Connection Preparations" (⇒ p. 16) before connecting. 2.2.2 Connecting to an Analog Unit (Models 8936, 8938, 8946, 8956 and 8957) Input modules • Model 8936 Analog Unit • Model 8956 Analog Unit • Model 8946 4-Ch Analog Unit *1 • Model 8938 FFT Analog Unit • Model 8957 High Resolution Unit Maximum Input Voltage (⇒ p. 4) Any of the following connects to a BNC jack on an input module. • Model 9197 Connection Cord Maximum input voltage: 500 V (large alligator clips) • Model 9198 Connection Cord Maximum input voltage: 300 V (small alligator clips) • Model 9217 Connection Cord Maximum input voltage: 300 V (for BNC output) If the voltage to be measured exceeds the maximum input rating of the input module being used: • Model 9665 10:1 Probe*2 (⇒ p. 35) • Model 9666 100:1 Probe*2 (⇒ p. 35) • Model 9322 Differential Probe*3 (⇒ p. 31) *1. Use Model 9198 Connection Cords for the Model 8946 4-Ch Analog Unit. *2. Incompatible with the Model 8946 4- Ch Analog Unit. *3. The Model 9418-15 AC Adapter option is required for connection (⇒ p. 33). 1 Connect the BNC plug on the cable to a BNC jack on the input module. Align the slots in the BNC plug with the guide pins on the jack on the input module, then push and twist the plug clockwise until it locks. 2 Connect the cable clips to the measure- ment object. Disconnecting BNC connectors Push the BNC plug, twist it counterclock- wise, and pull it out. Example: Model 8936 Analog Unit Required item: One of the above cables BNC jack Connection Procedure Lock Input module connec- tor guide pins BNC plug slots Connect to the measurement object Connecting the cable

18 For voltage measurement, be sure to read "2.2.1 Connection Preparations" (⇒ p. 16) before connecting. About Connections and Inputs When measuring temperature 2.2.3 Connecting to the Model 8937 Voltage/Temp Unit Input module Model 8937 Voltage/Temp Unit Maximum Input Voltage (⇒ p. 4) Voltage Measurement: Any of the following connects to a BNC jack on an input module. Temperature Measurement: Connect the thermocouple to the terminal block. (Recommended cables (⇒ p. 19)) • Model 9198 Connection Cord Maximum input voltage: 300 V (small alligator clips) • Model 9217 Connection Cord Maximum input voltage: 300 V (for BNC output) If the voltage to be measured exceeds the maximum input rating of the input module being used: • Model 9322 Differential Probe(⇒ p. 31) * ∗The Model 9418-15 AC Adapter option is required for connection (⇒ p. 33). The ground (GND) sides of the voltage and temperature inputs for each channel are common. Do not connect and apply both voltage and temperature inputs at the same time. The measurement object could be damaged. Voltage and temperature cannot both be measured simultaneously on one chan- nel. Observe the following to avoid electric shock. • When measuring temperature with an uninsulated thermocouple at a point that has a non-zero electric potential, be careful to avoid touching the input module’s terminal block. The terminals may have voltage present. • The voltage and temperature inputs are electrically isolated from one another. • The push-button terminals on the Model 8937 Voltage/Temp Unit are for ther- mocouples only. Do not connect anything except a specified thermocouple (type K, J, E, T, N, R, S or B). • Use a tool (screwdriver) to connect and disconnect thermocouples. • Confirm the polarity of a thermocouple before connection. Correct values are not displayed if the thermocouple is connected with reverse polarity.

19 1 Connect the BNC plug on the cable to a BNC jack on the input module. Align the slots in the BNC plug with the guide pins on the jack on the input module, then push and twist the plug clockwise until it locks. 2 Connect the cable clips to the measure- ment object. Disconnecting BNC connectors Push the BNC plug, twist it counterclock- wise, and pull it out. Required item: Connection cord BNC jack Connection Procedure: Voltage Measurement Lock Input module connector guide pins BNC plug slots Connect to the measurement object Connecting the cable 1 Strip insulation from the thermocouple wires as shown at the left. Stripping length: approx. 10 mm 2 Push the blade of a flat screwdriver into the button on the terminal block of the input module. 3 Insert each thermocouple wire into the appropriate terminal hole while pressing the button. Confirm proper polarity. 4 Release the button. The thermocouple is connected. 5 Attach to the measurement object. To remove the thermocouple Hold the button while pulling the thermo- couple wire out. Terminal Block Connection Holes Required item: Thermocouple, flat-blade screwdriver (2.6-mm blade) Recommended wire: Compatible wire: Single-strand thermocouple wire, 0.4 to 1.2-mm diameter Stripping length: 10 mm Connection Procedure: Temperature Measurement Outer Insulation 10 mm 25 mm Thermocouple single wires Inner insulation Connect to the measurement object Connecting a Thermocouple 2 1 3 4 5

20 2.2.4 Connecting to a Strain Unit (Models 8939 and 8960) Input module Model 8939 Strain Unit (conversion cable supplied) Maximum Input Voltage (⇒ p. 4) Connect the strain gauge converter* to the input module jack. (Depending on the sensor, the supplied conversion cable may be needed.) A bridge box* is required for measurement using a strain gauge.* ∗ The strain gauge converter, strain gauge and bridge box may be common types available in the market. When using a conversion cable • Do not connect a sensor other than the Model 8939 Strain Unit to the supplied conversion cable. • When removing the conversion cable, be sure to release the lock before pull- ing the plug out. Connect to the measurement object Connecting the Conversion Cable 1 Connect the supplied conversion cable to a receptacle on the input module. Align the tooth on the inside of the receptacle with the slot in the conversion cable plug, and insert the plug. Insert it all the way to the end of the slot in the plug ring (shaded part in the illus- tration at the left). When inserted, twist the ring clockwise to lock. 2 Connect the strain gauge transducer to the conversion cable. 3 Attach to the measurement object. To remove the conversion cable Push and twist the plug ring counterclock- wise to unlock it, then pull the plug out. Example: Connecting the strain gauge converter with the supplied conversion cable Required item: Conversion Cable (supplied), Strain Gauge Converter Connection Procedure: Vibration and displacement measurement Connect to the Strain Gauge Converter Bridge voltage 8939: 2 V is supplied. 8960: Selectable (2 V/ 5 V/ 10 V) Input voltage + - + Connector Pinout Tooth inside receptacle - Lock Connector guide pin Plug ring Slot 3 2 1 The grounds of the instrument and the Con- nector Shell of the 8960 are not isolated.

21 For voltage measurement, be sure to read "2.2.1 Connection Preparations" (⇒ p. 16) before connecting. For current measurement, read also "2.3 Connecting Clamps" (⇒ p. 29). When measuring current See below for the standards defining the underlined terms. IEC61010-1 (JIS C1010-1) IEC61010-2-031 (JIS C1010-2-31) IEC61010-2-032 (JIS C1010-2-32) For information about other clamps, see "2.3 Connecting Clamps" (⇒ p. 29). 2.2.5 Connecting to the Model 8940 F/V Unit Input module Model 8940 F/V Unit Maximum Input Voltage (⇒ p. 4) Frequency, Pulse Totalization and Duty, and Voltage Measurement: Any of the following connects to a BNC jack on an input module. Current Measurement: Connect to the BNC and sensor jacks on the input mod- ule. (The connection procedure depends on the clamp being used.) • Model 9197 Connection Cord Maximum input voltage: 500 V (large alligator clips) • Model 9198 Connection Cord Maximum input voltage: 300 V (small alligator clips) • Model 9217 Connection Cord Maximum input voltage: 300 V (for BNC output) If the voltage to be measured exceeds the maximum input rating of the input module being used: • Model 9322 Differential Probe*1 (⇒ p. 31) • Model 3273 or 3273-50*5Clamp-On Probe*2 • Model 3274, 3275, or 3276 Clamp-On Probe*3 • Model 9270, 9271, or 9272 Clamp-On Sensor*4 • Model 9277, 9278, or 9279 Universal Clamp-On CT*4 *1. The optional Model 9325 Power Cord , Model 9418-15 AC Adapter, or Model 9248 Power Cord (when using the Model 9687) is required for connec- tion. (⇒ p. 32) The following items are required to connect a clamp. *2. Any of the following models: 9319 Conversion Cable, the 3272 or 3269 Power Supply, or Model 9248 Power Cord (when using the Model 9687) *3. The Model 3272 or 3269 Power Supply or Model 9248 Power Cord (when us- ing the Model 9687) *4. The Model 9318 Conversion Cable or the Model 9555 Sensor Unit *5. When the Models 8940 and 3273-50 are used together, the input rating of the 3273-50 is 15 Arms. • Connect the clamp using the Model 9318 or 9319 Conversion Cable The grounds of this instrument and the clamp are not isolated. Pay care- ful attention to the connections to avoid damage to the equipment and serious injury. • When using the Model 3273 or 3273-50 Clamp-On Probe To avoid short circuits and serious injury when opening the sensor jaws to measure, if the voltage on the conductor to be measured may exceed safe voltage up to 300 V, the conductor should be well-insulated (with 1400 V AC withstand voltage), comply with overvoltage category I, pollu- tion level 2 and have double (strength) insulation rated for 300 V opera- tion. To maintain safety, do not clamp over bare conductors. The core and shield cover are not insulated. • To avoid electric shock when using a clamp, be careful not to damage the insulation on conductors being measured.

22 To maintain safety, always use the optional Model 9318 or 9319 Conversion Cables when using one of theses clamp models: 3273, 3273-50, 9270 – 9272 or 9277 – 9279. 1 Connect the BNC plug on the cable to a BNC jack on the input module. Align the slots in the BNC plug with the guide pins on the jack on the input module, then push and twist the plug clockwise until it locks. 2 Connect the cable clips to the measure- ment object. Disconnecting BNC connectors Push the BNC plug, twist it counterclock- wise, and pull it out. Required item: Connection Cables BNC jack Connection Procedure: Frequency, Pulse Totalization and Duty, and Voltage Measurement Lock Input module connector guide pins BNC plug slots Connect to the measurement object Connecting the cable 1 2 1 Align the slot in the conversion cable plug with the sensor receptacle on the input module, then insert and twist the plug until it locks. 2 Align the slot in the sensor cable plug with the conversion cable receptacle, then insert and twist the plug until it locks. 3 Clamp the sensor around the measure- ment object. To remove the conversion cable Push and twist the plug to unlock it, then pull it out. Example: When connecting the Model 9272 Clamp-On Sensor Required item: Model 9318 Conversion Cable and 9272 Clamp-On Sensor Sensor connector Connection Procedure: Current measurement (with Model 9318 Conversion Cable) (for Model 9270 to 9272 Clamp-On Sensors and Model 9277 to 9279 Universal Clamp-On CTs) Connect to the measurement object Connecting the clamp and the Mode 9318 Conversion Cable Conversion Cable Recep- tacle 2 1 Conversion Cable Plug 9272 Clamp-On Sensor Clamp-On Sensor Plug 3

23 Connection Procedure: Current measurement (with Model 9319 Conversion Cable) (for Model 3273 or 3273-50Clamp-On Probe) 1 Align the slots in the clamp-on probe plug with the pins on the input module’s BNC jack, press and twist. 2 Align the groove in the conversion cable plug with the sensor receptacle on the input module, then insert and twist the plug until it locks. 3 Align the groove in the probe’s power cable plug with the conversion cable receptacle, and mate the connectors. 4 Clamp the sensor around the measure- ment object. To remove the conversion cable Push and twist the plug to unlock it, then pull it out. Example: When using the Model 3273 Clamp-On Probe Required item: Models 9319 Conversion Cable and 3273 Clamp-On Probe BNC jack Sensor Receptacle Connect to the measurement object Connecting the clamp and the Model 9319 Conversion Cable Conversion Cable Receptacle Measurement Signal Plug Alignment Notch 1 2 4 3273 Clamp-On Probe 1 2 3 Conversion Cable Plug Power Cable Plug

24 Before measuring voltage and connecting to the BNC jack, be sure to read "2.2.1 Connec- tion Preparations" (⇒ p. 16). Connection Preparations 2.2.6 Connecting to the Model 8947 Charge Unit Input module Model 8947 Charge Unit Maximum Input Voltage (⇒ p. 4) Measurement using a piezoelectric acceleration sensor: Connect to the BNC jack or miniature receptacle (according to the particular sensor). Voltage measurement*2: Connect to the BNC jack on an input module. Model 9198 Connection Cord (recommended) • Preamplified acceleration sensor *1 (BNC connector, 2-mA, 15-V power supply) • Charge-output type piezoelectric acceleration sensor *1 (Miniature #10-32 connector) *1. A commercially available acceleration sensor can be used. *2. For voltage measurement, the connec- tion procedure is described in "2.2.2 Connecting to an Analog Unit (Models 8936, 8938, 8946, 8956 and 8957)" (⇒ p. 17). • Never connect the cable to the instrument while connected to a measure- ment object. An electric shock could result. • The BNC jack for each channel and the miniature receptacles all share common ground. To avoid short circuits, do not connect to two recepta- cles at the same time. • To avoid electric shock or damage to the measurement object, turn the instrument off while connecting a sensor or probe to the BNC jack. When the [Preamp] measurement mode is selected, internal power (15 V @ 2 mA) is applied to the BNC jack when measurement starts. About preamplified acceleration sensors The sensor should be compatible with the specification (15 V @ 2 mA) of the Model 8947 Charge Unit. Incompatible sensors are likely to be damaged.

25 1 Connect the BNC plug from the sensor to a BNC jack on the input module. Align the slots in the BNC plug with the guide pins on the jack on the input module, then push and twist the plug clockwise until it locks. 2 Connect the sensor to the measurement object. Disconnecting BNC connectors Push the BNC plug, twist it counterclock- wise, and pull it out. Required item: Preamplified acceleration sensor BNC jack Connection Procedure: Using a preamplified acceleration sensor When using a sensor/preamp that has no BNC plug Use an adapter or conversion cable to connect to the BNC jack. Lock Input module connector guide pins BNC plug slots Connect to the measurement object Connecting a preamplified acceleration sensor 1 2 1 Connect the miniature plug from the charge-output acceleration sensor to the receptacle on the input module, and twist the plug clockwise until tight. 2 Connect the sensor to the measurement object. To disconnect the miniature connector, twist the plug counterclockwise and pull it out. Required item: Charge-output acceleration sensor Miniature Connector Connection Procedure: Using a charge-output acceleration sensor With a charge-output sensor that does not have a (#10-32) miniature connector Use an adapter or conversion cable to connect to the miniature connector. Connect to the measurement object Connecting the charge-output acceleration sensor 1 2

26 2.2.7 Connecting to the Model 8958 16-Ch Scanner Unit Input module Model 8958 16-Ch Scanner Unit Maximum Input Voltage (⇒ p. 4) Connect to the terminal block on the input module. Temperature Measurement: Thermocouple Voltage Measurement: Input Cable Recommended cables: Solid 0.14 to 1.5 mm2 Stranded 0.14 to 1 mm2 16 to 26 AWG Connect to the measurement object Connecting to the terminal block 1 Strip back the insulation from the thermo- couple wires as shown at the left. Stripping length: approx. 5 mm 2 Remove the terminal block cover from the input module. 3 Loosen the screws in the input module’s terminal block using the screwdriver. 4 Insert the thermocouple wires into the con- nection holes. Confirm proper polarity. 5 Tighten the screws in the terminal block using the screwdriver to affix the thermo- couple leads. 6 Replace the terminal block cover. 7 Attach the thermocouple to the measure- ment object. Terminal Block Example: Connecting a thermocouple for temperature measurement (the connection procedure is the same for voltage measurement) Connection Holes Required item: Thermocouple, flat-bladed screwdriver (supplied) Connection Procedure (for both temperature and voltage measurements) 5 mm Thermocouple single wires Screw Thermocouple Terminal Block Cover The terminal block can be de- tached from the Model 8958 16- Ch Scanner Unit. How to detach: Loosen the screws at the top and bottom of the terminal block (left illustration). When attaching, be careful not to overtighten the screws. With cover in place Screw Terminal Block Turn the cover over and place the terminal block on it as shown above for stability while making connections. Terminal Block Cover If difficulties are encountered connecting input cables or thermocouples 1 2 3 4 6 7 To remove the thermocouple Loosen the screws on the terminal block and pull the wires out.

27 The zero position of the Model 8958 16-Ch Scanner Unit needs to be adjusted in the following cases. If the adjustment is not performed, the accuracy specification may not be satisfied. Allow one hour warm-up after turning power on before adjusting. • When the Model 8958 16-Ch Scanner Unit has just been installed in the instrument (a message requesting adjustment appears when the instrument is turned on) • When the zero position has shifted due to aging or environmental changes Init Settings Screen 1 Short the + and – terminals of channels 1 and 9 on the Model 8958 16-Ch Scanner Unit to be adjusted. 2 Press F7 [System] on the Opening screen, or place the cursor on the Function menu of the Waveform or Settings screen, and press the F7 [System] key. The System screen appears. 3 Press the SUB MENU keys to select the [Init] menu item. The Initialization (Init) Settings screen appears. 4 Using the CURSOR keys, place the cursor on the [Adjust Scanner Unit] button, and press the F1 [Execute] key. The Adjustment dialog box appears. 5 Select the module to be adjusted, and press the F7 [Execute] key. To cancel, press the F8 [Cancel] key. A processing message appears when executed, and the 8958 16-Ch Scanner Unit is adjusted. Adjustment is complete when “Completed nor- mally” appears. Waveform or Settings Screen Function Menu Supplied shorting bar or tinned wire. CH1 CH9 Opening Screen Scanner Unit Zero Position Adjustment Tighten the screws securely.

28 Be sure to read "2.2.1 Connection Preparations" (⇒ p. 16) before connecting. 2.2.8 Connecting to the Model 8959 DC/RMS Unit Input module Model 8959 DC/RMS Unit Maximum Input Voltage (⇒ p. 4) Any of the following connects to a BNC jack on an input module. • Model 9197 Connection Cord Maximum input voltage: 500 V (large alligator clips) • Model 9198 Connection Cord Maximum input voltage: 300 V (small alligator clips) • Model 9217 Connection Cord Maximum input voltage: 300 V (for BNC output) If the voltage to be measured exceeds the maximum input rating of the input module being used: • Model 9665 10:1 Probe (⇒ p. 35) • Model 9666 100:1 Probe (⇒ p. 35) • Model 9322 Differential Probe*1 (⇒ p. 31) *1. The Model 9418-15 AC Adapter option is required for connection (⇒ p. 33). 1 Connect the BNC plug on the cable to a BNC jack on the input module. Align the slots in the BNC plug with the guide pins on the jack on the input module, then push and twist the plug clockwise until it locks. 2 Connect the cable clips to the measure- ment object. Disconnecting BNC connectors Push the BNC plug, twist it counterclock- wise, and pull it out. Required item: One of the above cables BNC jack Connection Procedure Lock Input module connector guide pins BNC plug slots Connect to the measurement object Connecting the cable 1 2

29 Because it measures only voltage input, current is not measured directly by this instrument. Use a clamp that provides voltage output for current measurement. Refer to "1.3 List of Input Modules, Cables, Probes and Clamp Combinations" (⇒ p. 11) for compatible combinations of Hioki clamps and input modules. Refer also to the clamp’s Instruction Manual for clamp-specific details. Preparations for Using Clamps 2.3 Connecting Clamps Connect the clamp-on sensors to the instrument first, and then to the active lines to be measured. Observe the following to avoid electric shock and short circuits. • To avoid short circuits and potentially life-threatening hazards, never attach the clamp to a circuit that operates at more than the maximum rated voltage, or over bare conductors. • Clamps should only be connected to the secondary side of a breaker, so the breaker can prevent an accident if a short circuit occurs. Connec- tions should never be made to the primary side of a breaker, because unrestricted current flow could cause a serious accident if a short circuit occurs. • When the clamp sensor is opened, do not allow the metal part of the clamp to touch any exposed metal, or to short between two lines, and do not use over bare conductors. To avoid electric shock when measuring live lines, wear appropriate pro- tective gear, such as insulated rubber gloves, boots and a safety helmet. • To prevent damage to the instrument and clamp, never connect or disconnect a sensor while the power is on, or while the sensor is clamped around a con- ductor. • Be careful to avoid dropping the clamps or otherwise subjecting them to mechanical shock, which could damage the mating surfaces of the core and adversely affect measurement. • Measurements are affected by the combined accuracy of this instrument and the clamp. • The measured value is displayed as voltage [V], although this can be converted for display as current [A] using the Scaling function. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual • In the following cases, scaling setup is necessary: (1) When using a clamp with a voltage measurement input module other than the Model 8940 F/V Unit (2) When connecting a clamp to the Model 8940 F/V Unit without the Model 9318 or 9319 Conversion Cable For details about connecting clamps to the Model 8940 F/V UNIT: See "2.2.5 Connecting to the Model 8940 F/V Unit" (⇒ p. 21).

30 1 Connect the probe to a BNC jack on the input module. 2 Clamp the sensor around the measure- ment object. Disconnecting BNC connectors Push the BNC plug, twist it counterclock- wise, and pull it out. Example: Connecting the Model 9018-10 Clamp-On Probe to the 8936 Analog Unit Required item: 9018-10 Clamp-On Probe BNC jack Connection Procedure LOAD SOURCE Conductor Current flow direc- tion arrow The arrows on the clamp indicating the direction of current flow should point toward the load side. 9018-10 Clamp-On Probe Attach the clamp around only one conductor. Single-phase (2-wire) or three-phase (3- wire) cables clamped together will not pro- duce any reading. OK Lock Input module connector guide pins BNC plug slots Connect to the measurement object Connecting Clamps For connection details, refer to "2.2.5 Connecting to the Model 8940 F/V Unit" (⇒ p. 21). 1 2

31 Input modules that are compatible with the Model 9322 Differential Probe: • Model 8940 F/V Unit*1 • Voltage measurement input modules other than the Model 8940 *2 *1. The Model 9325 Power Cord or Model 9418-15 AC Adapter is required for connection. *2. The Model 9418-15 AC Adapter is required for connection. Refer to the instruction manual for the 9322 Differential Probe. When using an input module other than the Model 8940 F/V Unit 2.4 Connecting a Differential Probe Note the following maximum input voltage and maximum rated voltage to earth. If their voltages are exceeded, this device will be damaged and per- sonal injury will result. Therefore, do not perform measurement in this case. • Maximum input voltage (CAT II) 2000 V DC, 1000 V AC, (CAT III) 600 V AC/DC • Maximum rated voltage to earth When using the Grabber clip: (CAT II) 1500 V AC/DC, (CAT III) 600 V AC/DC When using the Alligator clip: (CAT II) 1000 V AC/DC, (CAT III) 600 V AC/DC Grabber clip H L (CAT II) 2000 V DC, 1000 V AC (CAT III) 600 V AC/DC (CAT II) 1500 V AC/DC (CAT III) 600 V AC/DC Between H-L H-to-ground L-to-ground H L (CAT II) 2000 V DC, 1000 V AC (CAT III) 600 V AC/DC (CAT II) 1000 V AC/DC (CAT III) 600 V AC/DC Between H-L H-to-ground L-to-ground Alligator clip • Turn the instrument off before connecting the AC adapter to the 9322 and to AC power. • Use only the specified Model 9418-15 AC Adapter (SA130A-1225V-S, SINO AMERICAN). AC adapter input voltage range is 100 to 240 VAC (with ±10% stability) at 50/60 Hz. To avoid electrical hazards and damage to the instrument, do not apply voltage outside of this range.

32 1 Connect the power cord to the power jack on the probe. 2 Connect the other end of the power cord to the sensor receptacle on the 8940 F/V Unit 3 Connect the BNC plug on the probe to a BNC jack on the input module. 4 Connect an alligator clip or grabber clip to the input lead of the probe. 5 Attach to the measurement object. Disconnecting BNC connectors Push the BNC plug, twist it counterclock- wise, and pull it out. Required item: Model 9322 Differential Probe and 9325 Power Cord 9325 Power Cord BNC jack Connection Procedure: When connecting to the Model 8940 F/V Unit (using the 9325 Power Cord) Connect to the measurement object Power jack Input leads Sensor connector 2 4 5 Lock Input module connector guide pins BNC plug slots BNC connector 3 1 Set the [Probe] selection on the Channel Setting screen to [9322+9325]. When connecting to the Model 8940 F/V Unit (using the 9418-15 AC Adapter) Set the [Probe] selection on the Channel Setting screen to [9322+9418]. Refer to "Connection Procedure: Measur- ing voltage with the input module (using the Model 9418-15 AC Adapter)" (⇒ p. 33) for connection details.

33 1 Connect the BNC plug on the probe to a BNC jack on the input module. 2 Connect the AC adapter to the power jack on the probe, and plug it into an AC outlet. 3 Connect an alligator clip or grabber clip to the input lead of the probe. 4 Connect to the measurement object. Disconnecting BNC connectors Push the BNC plug, twist it counterclock- wise, and pull it out. Required item: 9322 Differential Probe and 9418-15 AC Adapter BNC jack Connection Procedure: Measuring voltage with the input module (using the Model 9418-15 AC Adapter) Connect to the measurement object Power jack Input leads 1 2 3 4 Lock Input module connector guide pins BNC plug slots BNC connector Example: Connecting to the Model 8936 Analog Unit Connect the Model 9418-15 AC Adapter Connect to an AC outlet Set the [Probe] selection on the Channel Setting screen to [1000:1].

34 Model 9687 Probe Power Unit 1 Connect the BNC plug on the probe to a BNC jack on the input module. 2 Connect the Model 9248 Power Cord to the power jack on the probe, and plug it into the Model 9687 Probe Power Unit. 3 Connect an alligator clip or grabber clip to the input lead of the probe. 4 Connect to the measurement object. Disconnecting BNC connectors Push the BNC plug, twist it counterclock- wise, and pull it out. Required item: Model 9322 Differential Probe and Model 9248 Power Cord BNC jack Connection Procedure: Supplying power from the Model 9687 Probe Power Unit (Using the Model 9248 Power Cord) Connect to the measurement object Power jack Input leads 1 2 3 4 Lock Input module connector guide pins BNC plug slots BNC connector Example: Connecting to the Model 8936 Analog Unit Connect the Model 9248 Power Cord Connect the Model 9687 Probe Power Unit Set the [Probe] selection on the Channel Setting screen to [1000:1]. When using the Model 8940, select [9322+9325] or [9322+9418]. Either setting is acceptable.

35 The Model 9665 10:1 Probe and 9666 100:1 Probe can be connected to the following input modules: • Model 8936 Analog Unit • Model 8938 FFT Analog Unit • Model 8956 Analog Unit • Model 8957 High Resolution Unit • Model 8959 DC/RMS Unit Refer to the probe’s instruction manual for details. 2.5 Connecting Attenuating Probes Note the following maximum input voltage and maximum rated voltage to earth. If their voltages are exceeded, this device will be damaged and per- sonal injury will result. Therefore, do not perform measurement in this case. The measurement category (overvoltage category) must correspond with that of the input module being used. • Maximum input voltage Model 9665 10:1 Probe 1000 Vrms (1 MHz max) Model 9666 100:1 Probe 5000 Vpeak (1 MHz max) • Maximum rated voltage to earth The maximum rated voltage to ground of the input module being used Calibrate the attenuating probe before measurement. Procedure: "Calibration" (⇒ p. 36) 1 Connect the BNC plug on the probe to a BNC jack on the input module. 2 Connect the ground lead to the probe. 3 Connect the hook clip to the probe. 4 Connect to the measurement object. Disconnecting BNC connectors Push the BNC plug, twist it counterclock- wise, and pull it out. Required item: 9665 10:1 Probe BNC jack Connection Procedure Connect to the measurement object Ground lead 1 2 3 Lock Input module connector guide pins BNC plug slots BNC connector Example: Connecting the Model 9665 10:1 Probe to the 8936 Analog Unit Hook Clip 4

36 1 Connect the metal pins or lead wires to the TRIG.OUT/CAL and GND I/O terminals. While pressing the terminal button with the screwdriver, insert the metal pin or lead wire. Re- moving the screwdriver affixes the pin or wire. 2 Connect the hook clip of the probe to the metal pin or lead wire in the TRIG.OUT/ CAL terminal, and the ground lead to the GND terminal. 3 Select the [Ext Term] menu from the Sys- tem screen, and select [Calibration] for the [TRIG.OUT/CAL] setting. 4 Select the following for each settings screen. 5 Press the instrument’s START key to begin recording. A 1-kHz, 5-V square wave is displayed and out- put at the terminals. 6 Adjust the trimmer on the probe to obtain the proper waveform on the screen. Settings Screen Setting Item Settings Status Timebase 100μS/div Shot (recording length) 25 div Channel Range 1V/div Trigger Trigger Mode Repeat [Analog] page Type Level Level 2.5V Slope ↑ Calibration Right Side Waveforms indicating calibration required Calibrated waveform Required item: Flat-blade screwdriver (2.6-mm blade) Connect the probe between the TRIG.OUT/CAL and GND external I/O terminals using metal pins or two short leads Metal pin example: Mac8 • DH-4-20 pin for surface mounting • Terminal for hybrid ICs CD-5-20, CF-1-15 and CA-7-3 (Attenuating probes do not connect directly to the external I/O terminals.) Ext Term Settings Screen 5 V 500 μs 1 2 TRIG.OUT/CAL Hook Clip Ground Lead 2 Press the DISP key, and the F7 [System] key. The System screen appears. Press the SUB MENU keys to select the [Ext Term] (Ex- ternal terminal) menu. 3 Attenuating probe 1 To Insert 3 Push Pull External I/O Terminals GND (Any GND terminal may be used) Calibration Trimmer 6

37 Up to four logic probes can be connected to the LOGIC receptacles on the right side of the instrument. Each logic probe provides four logic input channels, so up to 16 logic waveforms can be recorded. The following logic probes are supported: • Model 9327 Logic Probe • Model 9321-01 Logic Probe • Model 9320-01 Logic Probe Refer to the instruction manual supplied with the logic probe for specific details. Before connecting a logic probe to the measurement object 2.6 Connecting Logic Probes Do not connect logic probes other than those supplied by Hioki to the logic inputs. For users of the following legacy models: Models: 9306, 9307, 9320 and 9321 These can be used with this instrument by connecting the Model 9323 Conver- sion Cable. To avoid electric shock and short circuit accidents or damage to the instru- ment, pay attention to the following: • The ground pin in the LOGIC connector (plug) of the Model 9320-01 and 9327 Logic Probes (and legacy Models 9306 and 9320) is not isolated from this instrument’s ground (common ground). Use grounding-type polarized power cords for the measurement object and this instrument, and obtain power from the same mains circuit. Connecting to different mains circuits or using a non-grounding power cord may cause damage to the measurement object or this instrument because of current flow through the logic probes resulting from potential difference between the grounds of the different wiring systems. To avoid these problems, we recommend the following connection pro- cedure: Measurement Object Memory HiCorder Logic probe Logic probe Functional Earth Terminals GND Connect this instrument to the same outlet as the measurement object us- ing the (supplied) grounding polar- ized power cord. Connect the measurement object’s ground to the GND terminal of this in- strument. (Always obtain power from the same mains circuit.) About Functional Earth: Memory HiCorder Measurement Object See "3.5 Grounding the Instrument’s Functional Earth" in the Quick Start Manual

38 • Maximum logic probe input voltages are as follows. Do not measure if the maximum voltage would be exceeded, as damage the instrument or personal injury may result. Model 9327 Logic Probe: +50 VDC Model 9320-01 Logic Probe: +50 VDC Model 9321-01 Logic Probe: 250 Vrms (HIGH range), 150 Vrms (LOW range) • Do not allow the metal tip of a logic probe to cause a short between con- ductors on the measurement object. Never touch the metal tip of a probe. Connection Procedure Connect to the measurement object See "Logic Probe Usage Procedures" (⇒ p. 39) Right Side Example: Connecting the Model 9327 Logic Probe 1 Connect the logic probe by aligning the groves on the plug and a LOGIC recepta- cle. 2 Connect to the measurement object. Required item: Model 9327 Logic Probe LOGIC receptacles When a logic probe is not connected, the corresponding logic waveform appears at HIGH level on the waveform screen.

39 Logic Probe Usage Procedures Range Table Range Digital input (Threshold value) Contact input (Detecting resistance value) 1.4 V 1.4 V±0.3 V more than 1.5 kΩ less than 500Ω opened (Output L) shorted (Output H) 2.5 V 2.5 V±0.4 V more than 3.5 kΩ less than 1.5 kΩ opened (Output L) shorted (Output H) 4.0 V 4.0 V±0.5 V more than 2.5 kΩ less than 8 kΩ opened (Output L) shorted (Output H) Using Model 9327 and 9320-01 Logic Probes Connect to the measurement object When measuring digital signals (Digital input) 1 Connect the IC clip leads to the logic probe. 2 Set the input selector to DIGITAL. 3 Connect the alligator clip to the circuit ground. 4 Use the threshold value selector to select the threshold value. 5 Connect the IC clips to the measurement object. When measuring the contact signal (Contact input) 1 Connect the Alligator clip leads to the logic probe. 2 Set the input selector to CONTACT. 3 Connect the alligator clips to the measure- ment object. IC clip leads Alligator clip leads 1 3 3 4 Alligator clip lead 5 Connect to the measurement object GND Input selector 1 2 Input selector 2 Connect to the LOGIC receptacle Connect to the LOGIC receptacle Threshold value selector

40 For other models, refer to the specifications (⇒ p. 84). The number of channels 4 (Isolated between channels and the instrument) Range LOW HIGH Input resistance 30 kΩ min 100 kΩ min Sensitivity Output: L 0 to 10 VAC ±(0 to 15) VDC 0 to 30 VAC ±(0 to 43) VDC Output: H 60 to 150 VAC ±(20 to 150) VDC 170 to 250 VAC ±(70 to 250) VDC Response time ↑ Less than 1 ms Less than 1 ms ↓ Less than 3 ms Less than 3 ms with 100 VDC with 200 VDC Maximum input voltage 150 V rms 250 V rms Maximum rated voltage to earth 250 V rms Dielectric strength (between unit and channels, between channels) Insulation resistance More than 100 MΩ / 500 VDC (between unit and channels, between channels) Using the Model 9321-01 Logic Probe Connect to the measurement object Input selector Connect to the LOGIC receptacle Clips 1 Set the input selector in accordance with the measured voltage. LOW range: On/off for 100 VAC and 24 VDC, etc. HIGH range: On/off for 200 VAC, etc. 2 Connect the clips to the measurement object. • Inputs are non-polarized, so polarity can be disregarded. • Inputs are isolated, so each channel can be connected to a point of indepen- dent potential. • This instrument detects absolute values, so DC of either polarity can be input. • AC voltage is evaluated as a 50/60 Hz standard sine wave.

41 The optional Model 9687 Probe Power Unit can be used to supply power to our optional clamp-on and differential probes. Probe models compatible with the Model 9687 Probe Power Unit • 3273, 3273-50, 3274, 3275, 3276 Clamp-On Probes • 9322 Differential Probe (using Model 9248 Power Cord) 9687 Probe Power Unit Specifications 2.7 Supplying power from the Model 9687 Probe Power Unit The power output connectors on the Model 9687 are especially designed for our clamp-on and differential probes. To avoid damage, do not use the power supply for any purpose other than supplying power. There are limits to how many probes can be used with a single Model 8860 or 8861 with a 9687 installed. Avoid exceeding the quantities in the following table for all probes to be used. When mixing probe types, the lower quantity of usable probes applies. Probe Usable Quantity 3273 Clamp-On Probe 8 3273-50, 3274, 3276 Clamp-On Probe 6 3275 Clamp-On Probe 5 9322 Differential Probe 8 Accuracy is specified at 23±5°C and 20 to 80% RH, 30 minutes after power on No. of powered channels 8 Compatible probes 3273, 3273-50, 3274, 3275, 3276, 9322 Rated output voltage ±12 V Rated output current ±3 A (total for all channels) Operating temperature and humidity 0 to 40°C (32 to 104°F), 20 to 85% RH (non-condensating) Storage temperature and humidity -10 to 50°C (14 to 122°F), 20 to 90% RH (non-condensat- ing) Operating environment Compatible with Models 8860/ 8861 Dimensions Adds approx. 18.2 mm (0.72”) (D) to dimensions of Models 8860/ 8861 Weight Adds approx. 570 g (20.1 oz.) to the weight of Models 8860/ 8861 Supported Models Model 8860 Serial Nos. 051040422 and above Model 8861 Serial Nos. 051040432 and above Connect the power cables from the probes to the output connectors of the Model 9687 Probe Power Unit. Power Output Connector Connections

This chapter describes the input channel setting procedures for each input mod- ule. Refer to "3.10 About Setting Contents" (⇒ p. 64) for details of each setting. Refer to the Instruction Manual for other settings. Input Channel Settings Chapter 3 • Model 8936 Analog Unit (⇒ p. 44) • Model 8937 Voltage/Temp Unit (⇒ p. 45) • Model 8938 FFT Analog Unit (⇒ p. 48) • Model 8939 Strain Unit (⇒ p. 49) • Model 8940 F/V Unit (⇒ p. 50) • Model 8946 4-Ch Analog Unit(⇒ p. 44) • Model 8947 Charge Unit (⇒ p. 56) • Model 8956 Analog Unit (⇒ p. 44) • Model 8957 High Resolution Unit(⇒ p. 59) • Model 8958 16-Ch Scanner Unit (⇒ p. 60) • Model 8959 DC/RMS Unit (⇒ p. 63) • Model 8960 Strain Unit (⇒ p. 49) Level Monitor Shows the input level while making settings. See "5.3 Monitoring Input Status" in the Instruction Manual Comments can be entered for each channel. See "5.2 Adding Comments" in the Instruction Manual Select the module and channel number to be set. The display color of acquired waveforms, zero posi- tion, vertical magnification and display range can be changed. See "7.1 Making Input Waveform Display Settings (Analog Waveforms)" in the Instruction Manual Set the scaling if you want to convert the measured units for display. Measured values (output voltage) from sensors can be converted to physical values appropriate to the measurement object. See "5.4 Converting Input Values (Scaling Func- tion)" in the Instruction Manual Set up the input channel. Display appearance depends on the particular input module. Refer to the description of each module. Make settings on the Channel Settings screen. Measurement Range Indicates the selected range. 1 Press the SET key. 2 Press the SUB MENU keys to select the [Channel] menu. 3 Press the SHEET/PAGE keys to select the [One Ch] page. 4 Use the CURSOR keys to move among the setting items, and press the F1 to F8 keys to select a setting. Displayed Range Indicates the range displayed on the screen. To change the display position or range, change the waveform display settings.

44 Set the input channel for voltage measurement when using the following input modules: • Model 8936 Analog Unit • Model 8956 Analog Unit • Model 8946 4-Ch Analog Unit 3.1 Analog Unit Settings (Models 8936, 8946 and 8956) Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the input module and mea- surement mode [Module] [Mode] Confirm the type of the selected module. • Model 8936 Analog Unit.............. [Analog] • Model 8956 Analog Unit.............. [H-Speed] • Model 8946 4-Ch Analog Unit.....[4CH] Confirm that the display is set for [Voltage]. 4 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 86). 5 Select the input coupling method [Coupling] Select the coupling method for input signals (⇒ p. 65). [ DC, AC or GND ] 6 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 500Hz, 5kHz or 100kHz ] (in the Model 8936 case) 7 Select the probe attenuation [Probe] Select according to the cable or probe being used (⇒ p. 75). [ 1:1, 10:1 , 100:1 or 1000:1 ] 8 Perform zero adjustment [Zero-Adjust] Perform at least 30 minutes after turning power on (⇒ p. 76). Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual Example: Setting a channel on the Model 8936 Analog Unit 8 7 Execute to adjust input signal offset. (⇒ p. 76) 1 2 3 4 5 ([One Ch] Page of Channel Setting Screen) 6

45 3.2 Model 8937 Voltage and Temperature Unit Settings 3.2.1 Voltage Measurement Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [Volt/Temp]. 4 Select the measurement mode [Mode] Select [Voltage]. 5 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 88). 6 Select the input coupling method [Coupling] Select the coupling method for input signals (⇒ p. 65). [ DC, AC or GND ] 7 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 500Hz, 5kHz or 100kHz ] 8 Select the probe attenuation [Probe] Select according to the cable or probe being used (⇒ p. 75). [ 1:1, 10:1, 100:1 or 1000:1 ] 9 Set the digital filter [Digital F] (Effective measurement ranges: 500 µV to 2 mV) Set the digital filter function to be enabled or disabled. Set it to ON to suppress noise components (⇒ p. 67). [ Off or On ] 10 Perform zero adjustment [Zero-Adjust] Perform at least one hour after turning power on (⇒ p. 76). Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual 10 ([One Ch] Page of Channel Setting Screen) 8 Execute to adjust input signal offset. (⇒ p. 76) 1 2 3 5 6 4 9 Displayed when the measurement range is 500 µV to 2 mV. 7

46 3.2.2 Temperature Measurement Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [Volt/Temp]. 4 Select the measurement mode [Mode] Select [Temp]. 5 Select thermocouple [Sensor] Select the type of thermocouple (⇒ p. 68). [ K, J, E, T, N, R, S or B ] 6 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). [ 10, 20, 50 or 100°C/div ] 7 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz or 500Hz ] 8 Set the reference junction compensa- tion [RJC] Select whether reference junction compensation should be provided internally (⇒ p. 68). [ Internal or External ] 9 Set drift correction [Drift] Set whether to cancel variations in the reference voltage. Set this On to improve the temperature characteristic (⇒ p. 69). [ Off or On ] Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual ([One Ch] Page of Channel Setting Screen) 8 1 2 3 5 6 4 9 The [Voltage] measurement mode is selected upon system reset. 7

47 • The upper and lower limits of measurement input depend on the measure- ment range. Refer to "About Measurement Range, Upper and Lower Input Limits and the Waveform Display:" (⇒ p. 64). • When the input terminals of the Model 8937 Voltage/Temp Unit are exposed to strong drafts: Loss of thermal equilibrium of the input section may result in measurement errors. To measure in such environments, reposition the equipment so that the input terminals are protected from the drafts. • When the ambient temperature changes rapidly: Loss of thermal equilibrium may result in measurement errors. If this occurs, allow about an hour for the equipment to acclimatize to the new temperature, then take measurements after thermal equilibrium is achieved. • In an environment with fluctuating ambient temperature, when recording for a long time using a thermocouple with weak thermoelectromotive force (R, S or B sensors): Temperature characteristic can be improved by setting drift correction On. • The [Voltage] measurement mode is selected upon system reset.

48 3.3 Model 8938 FFT Analog Unit Settings 9 ([One Ch] Page of Channel Setting Screen) 7 Execute to adjust input signal offset. (⇒ p. 76) 1 2 3 4 5 8 6 Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the input module and mea- surement mode [Module] [Mode] Confirm that the display is set for [FFT]. Confirm that the display is set for [Voltage]. 4 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 90). 5 Select the input coupling method [Coupling] Select the coupling method for input signals (⇒ p. 65). [ DC, AC or GND ] 6 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 500Hz, 5kHz or 100kHz ] 7 Select the probe attenuation [Probe] Select according to the cable or probe being used (⇒ p. 75). [ 1:1, 10:1, 100:1 or 1000:1 ] 8 Set the anti-aliasing filter [AAF] Turn this on to suppress anti-aliasing distortion, such as for FFT analysis (⇒ p. 67). [ Off or On ] 9 Perform zero adjustment [Zero-Adjust] Perform at least 30 minutes after turning power on (⇒ p. 76). Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual

49 3.4 Strain Unit Settings (Models 8939 and 8960) ([One Ch] Page of Channel Setting Screen) 1 2 3 4 7 5 6 8939 8960 7 8 8 Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the input module and mea- surement mode [Module] [Mode] Confirm that the display is set for [Strain]. 4 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. (Units: [µ] Microstrain = 1/2 µV/V) The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 91). 5 Select the bridge voltage [Bridge] Select the bridge voltage (⇒ p. 75). [ 2V, 5V, 10V ] 6 Set the anti-aliasing filter [AAF] Turn this on to suppress anti-aliasing distortion, such as for FFT analysis (⇒ p. 67). [ Off or On ] 7 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). 8939: [ Off, 10Hz, 30Hz, 300Hz or 3kHz ] 8960: [ OFF, 5Hz, 10Hz, 100Hz, 1kHz ] 8 Execute auto-balance [Auto- Balance] Sets the reference output level of the transducer to the spec- ified zero position (⇒ p. 78). Execute one hour after turning the power on, with the sensor in the unloaded state. Set up scaling Set as occasion demands. See "Scaling Setting Examples" in "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual (Model 8960 only) (Model 8960 only)

50 Settings are related to the following measurements. One measurement type can be set per channel. • Measure frequency from the input pulse corresponding to the measurement waveform (⇒ p. 50) • Measure frequencies near 50/60 Hz from the input pulse corresponding to the measurement waveform (⇒ p. 50) • Measure rotation rate from the input pulse corresponding to the measurement waveform (⇒ p. 50) • Count of input pulses (⇒ p. 52) • Measure the percentage of High level of a single pulse waveform (pulse duty) (⇒ p. 53) • Measure voltage (⇒ p. 54) • Measure current (⇒ p. 55) 3.5 Model 8940 F/V Unit Settings 3.5.1 Measuring Frequency, 50/60 Hz and Rotation Rate Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [F/V]. 4 Select the measurement mode [Mode] Select the measurement mode. [ Frequency, Rotation, 50/60 Hz ] 5 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 92). 6 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 500Hz, 5kHz or 100kHz ] ([One Ch] Page of Channel Setting Screen) 8 1 2 3 5 4 9 Example: Measuring frequency 6 7 10 The [Frequency] measurement mode is selected upon system reset.

51 7 Select the probe attenuation [Probe] Select according to the cable or probe being used (⇒ p. 75). [ 1:1, 10:1, 100:1, 1000:1(9322+9325) or 1000:1(9322+9418) ] 8 Set the threshold level [Threshold] Set the threshold value (⇒ p. 72). 9 Set pull-up [Pull-Up] Enable (set On) the pull-up resistance when connecting to an open-collector output signal. Disable it (Off) for normal mea- surements (⇒ p. 71). [ Off or On ] 10 Set the Hold function [Hold] Select whether to hold the last measured value until the next frequency or rotation rate is determined (⇒ p. 70). [ On, 10-ms Off or 1-s Off ] Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual Difference between frequency measurement and 50/60 Hz frequency measurement The frequency measurement function consists of selecting a range from 50 mHz to 5 kHz and observing changes in frequency. The 50/60 Hz frequency measurement function consists of setting either 50 or 60 Hz as the zero position, and observing deviations from that frequency.

52 3.5.2 Pulse Count Measurement Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [F/V]. 4 Select the measurement mode [Mode] Select [Count]. 5 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. (Units: c = count) The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 92). 6 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 500Hz, 5kHz or 100kHz ] 7 Select the probe attenuation [Probe] Select according to the cable or probe being used (⇒ p. 75). [ 1:1, 10:1, 100:1, 1000:1(9322+9325) or 1000:1(9322+9418) ] 8 Set the threshold level [Threshold] Set the threshold level (⇒ p. 72). 9 Set pull-up [Pull-Up] Enable (set On) the pull-up resistance when connecting to an open-collector output signal. Disable it (Off) for normal mea- surements (⇒ p. 71). [ Off or On ] Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual ([One Ch] Page of Channel Setting Screen) 8 1 2 3 5 4 6 7 9 The [Frequency] measurement mode is selected upon system reset.

53 3.5.3 Pulse Duty Measurement Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [F/V]. 4 Select the measurement mode [Mode] Select [Duty]. 5 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 500Hz, 5kHz or 100kHz ] 6 Select the probe attenuation [Probe] Select according to the cable or probe being used (⇒ p. 75) [ 1:1, 10:1, 100:1, 1000:1(9322+9325) or 1000:1(9322+9418) ] 7 Set the threshold level [Threshold] Set the threshold level (⇒ p. 72). 8 Set pull-up [Pull-Up] Enable (set On) the pull-up resistance when connecting to an open-collector output signal. Disable it (Off) for normal mea- surements (⇒ p. 71). [ Off or On ] Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual ([One Ch] Page of Channel Setting Screen) 7 1 2 3 4 5 6 8 The [Frequency] measurement mode is selected upon system reset. Pulse duty measurement If a rising pulse (at 20 kHz or above) is applied during calculation (“dead time”), the duty during the dead time cannot be measured. Duty is measured from the pulse following the dead time. Calculation (50 µs) Waveform Acquisition Waveform Acquisition Ignored

54 3.5.4 Voltage Measurement Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [F/V]. 4 Select the measurement mode [Mode] Select [Voltage]. 5 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 92). 6 Select the input coupling method [Coupling] Select the coupling method for input signals (⇒ p. 65). [ DC, AC or GND ] 7 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 500Hz, 5kHz or 100kHz ] 8 Select the probe attenuation [Probe] Select according to the cable or probe being used (⇒ p. 75). [ 1:1, 10:1, 100:1, 1000:1(9322+9325) or 1000:1(9322+9418) ] 9 Set pull-up [Pull-Up] Enable (set On) the pull-up resistance when connecting to an open-collector output signal. Disable it (Off) for normal mea- surements (⇒ p. 71). [ Off or On ] 10 Perform zero adjustment [Zero-Adjust] Perform at least 30 minutes after turning power on (⇒ p. 76). Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual 10 ([One Ch] Page of Channel Setting Screen) 8 Execute to adjust input signal offset. (⇒ p. 76) 1 2 3 5 6 4 9 The [Frequency] measurement mode is selected upon system reset. 7

55 When using the Model 9018-10 and 9132-10 Clamp-On Probe, select [Voltage] mode. See "3.5.4 Voltage Measurement" (⇒ p. 54) 3.5.5 Current Measurement Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [F/V]. 4 Select the measurement mode [Mode] Select [Current]. 5 Select a sensor [Sensor] Select the clamp to be used. [ 3273, 3273-50, 9270, 9271, 9272LO*, 9272HI*, 9277, 9278 or 9279 ] * 9272HI: 200A-range, 9272LO: 20A-range 6 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 92). 7 Select the input coupling method [Coupling] Select the coupling method for input signals (⇒ p. 65). [ DC, AC or GND ] 8 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 500Hz, 5kHz or 100kHz ] 9 Perform zero adjustment [Zero-Adjust] Perform at least 30 minutes after turning power on (⇒ p. 76). 9 5 Execute to adjust input signal offset. (⇒ p. 76) 1 2 3 6 7 4 The [Frequency] measurement mode is selected upon system reset. ([One Ch] Page of Channel Setting Screen) 8 • Up to eight channels can be used simultaneously when measuring with the Model 9318 and 9319 Conversion Cables. • When using a clamp model that is not displayed in the sensor selection list, measure in [Voltage] mode, and apply the scaling function. See:"5.4 Converting Input Values (Scaling Function)" in the Instruction Manual

56 Make settings regarding input channels for measuring voltage or acceleration (Charge and Preamp). One type can be measured per channel. 3.6 Model 8947 Charge Unit Settings 3.6.1 Voltage Measurement Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [Charge]. 4 Select the measurement mode [Mode] Select [Voltage]. 5 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 95). 6 Select the input coupling method [Coupling] Select the coupling method for input signals (⇒ p. 65). [ DC, AC or GND ] 7 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 500Hz, 5kHz or 100kHz ] 8 Select the probe attenuation [Probe] Select according to the cable or probe being used (⇒ p. 75). [ 1:1, 10:1, 100:1 or 1000:1 ] 9 Set the anti-aliasing filter [AAF] Turn this on to suppress anti-aliasing distortion, such as for FFT analysis (⇒ p. 67). [ Off or On ] 10 Perform zero adjustment [Zero-Adjust] Perform at least one hour after turning power on (⇒ p. 76). Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual 10 ([One Ch] Page of Channel Setting Screen) 8 Execute to adjust input signal offset. (⇒ p. 76) 1 2 3 5 6 4 9 The [Charge] measurement mode is selected upon system reset. 7

57 3.6.2 Acceleration Measurement (Charge, Preamp) Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [Charge]. 4 Select the measurement mode [Mode] Select the measurement mode. • [Charge]: When using a charge-output acceleration pick- up sensor • [Preamp]: When using an acceleration pick-up sensor equipped with an internal preamp 5 Set sensor sensitivity [Sensitivity] Set the value per m/s2 defined for the acceleration sensor to be used (⇒ p. 73). "Sensor Sensitivity Setting Examples" (⇒ p. 73) 6 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. (Units: m/s2 = acceleration) The RANGE/POSN knob selects the range. Refer to the specifications for available ranges (⇒ p. 95). 7 Select the input coupling method [Coupling] Select the coupling method for input signals (⇒ p. 65). [ AC or GND ] 8 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 500Hz or 5kHz ] 9 Set the anti-aliasing filter [AAF] Turn this on to suppress anti-aliasing distortion, such as for FFT analysis (⇒ p. 67). [ Off or On ] 10 Perform zero adjustment [Zero-Adjust] Perform at least one hour after turning power on (⇒ p. 76). Set up scaling Set as occasion demands. See "To convert [m/s2] units to [G] for display" (⇒ p. 73) in this manual, "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual 10 ([One Ch] Page of Channel Setting Screen) 9 1 2 3 6 7 4 5 The [Charge] measurement mode is selected upon system reset. 8

58 Supplement ___________________________________________________ Before connecting sensors and probes Range Setting Auto-ranging cannot be used on channels for which the measurement mode is set to [Charge] or [Preamp]. For more on auto-ranging, refer to "3.3.5 Automatic Range Setting (Auto-Ranging Function)" in the Instruction Manual. Measuring Timing In the following cases, five or six seconds should be allowed for input stabilization: • Measurement Mode: [Charge] When switching the measurement range between one of the six high-sensitiv- ity ranges and one of the six low-sensitivity ranges. • Measurement Mode: [Preamp] After selecting preamp mode and before starting a new measurement To avoid electric shock or damage to the measurement object, turn the instrument off before connecting a sensor or probe to the BNC jack. When the [Preamp] measurement mode is selected, internal power (15 V @ 2 mA) is applied to the BNC jack when measurement starts. 5 to 6 seconds

59 3.7 Model 8957 High Resolution Unit Settings Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the input module and mea- surement mode [Module] [Mode] Confirm that the display is set for [High Res]. Confirm that the display is set for [Voltage]. 4 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 98). 5 Select the input coupling method [Coupling] Select the coupling method for input signals (⇒ p. 65). [ DC, AC or GND ] 6 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 50Hz, 500Hz, 5kHz or 50kHz ] 7 Select the probe attenuation [Probe] Select according to the cable or probe being used (⇒ p. 75). [ 1:1, 10:1, 100:1 or 1000:1 ] 8 Set the anti-aliasing filter [AAF] Turn this on to suppress anti-aliasing distortion, such as for FFT analysis (⇒ p. 67). [ Off or On ] 9 Perform zero adjustment [Zero-Adjust] Perform at least 30 minutes after turning power on (⇒ p. 76). Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual 9 ([One Ch] Page of Channel Setting Screen) 7 Execute to adjust input signal offset. (⇒ p. 76) 1 2 3 4 5 8 6

60 3.8 Model 8958 16-Ch Scanner Unit Settings Before Setting The zero position of the Model 8958 16-Ch Scanner Unit needs to be adjusted in the following cases. See "Scanner Unit Zero Position Adjustment" (⇒ p. 27) • When the Model 8958 16-Ch Scanner Unit has just been installed in the instrument (a message requesting adjustment appears when the instrument is turned on) • When the zero position has shifted due to aging or environmental changes 3.8.1 Voltage Measurement Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [Scanner]. 4 Select the measurement mode [Mode] Select [Voltage]. 5 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 99). 6 Set the digital filter [Digital F] Set the digital filter function to be enabled or disabled. Set it to ON to suppress noise components (⇒ p. 67). [ Off, 60Hz, 50Hz or 10Hz ] Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual ([One Ch] Page of Channel Setting Screen) Execute to adjust input signal offset. (⇒ p. 76) 1 2 3 5 4 6

61 3.8.2 Temperature Measurement Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [Scanner]. 4 Select the measurement mode [Mode] Select [Temp]. 5 Select thermocouple [Sensor] Select the type of thermocouple (⇒ p. 68). [ K, J, E, T, N, R, S, B or W ] 6 Select the measurement range [Range] Select the appropriate measurement range. The setting val- ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (⇒ p. 64). [ 10, 50 or 100°C/div ] 7 Set the digital filter [Digital F] Set the digital filter function to be enabled or disabled. Set it to ON to suppress noise components (⇒ p. 67). [ Off, 60Hz, 50Hz or 10Hz ] 8 Set the reference junction compensa- tion [RJC] Select whether reference junction compensation should be provided internally (⇒ p. 68). [ Internal or External ] 9 Set disconnect detection [Burn-Out] Select thermocouple broken-wire detection (⇒ p. 69). When enabled (On), the waveform trace of a broken wire stays at the top of the screen and the cursor value is dis- played as “+OVER” when a broken wire is present. [ Off or On ] Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual ([One Ch] Page of Channel Setting Screen) 8 1 2 3 5 6 4 9 7 The [Voltage] measurement mode is selected upon system reset.

62 • The upper and lower limits of measurement input depend on the measure- ment range. Refer to "About Measurement Range, Upper and Lower Input Limits and the Waveform Display:" (⇒ p. 64). • When the input terminals of the Model 8958 16-Ch Scanner Unit are subject to strong drafts: Loss of thermal equilibrium of the input section may result in measurement errors. To measure in such environments, install the supplied cover or relocate the equipment out of the wind. • When the ambient temperature changes rapidly: Loss of thermal equilibrium may result in measurement errors. If this occurs, allow about an hour for the equipment to acclimatize to the new temperature, then take measurements after thermal equilibrium is achieved.

63 3.9 Model 8959 DC/RMS Unit Settings Setting Procedure Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys. Step Setting Item Description 1 Select the module No. [Unit ] Select the number of the input module to set up. ("Channel Configuration" (⇒ p. 15)) 2 Select the channel No. [Ch ] Select the channel number on the input module. 3 Confirm the module [Module] Confirm that the display is set for [DC/RMS]. 4 Select the measurement mode [Mode] Select the measurement mode. • [DC]: Voltage measurement • [RMS]: RMS measurement 5 Select the measurement range [Range] Select the voltage per division on the voltage (vertical) axis. The RANGE/POSN knob selects the range (⇒ p. 64). Refer to the specifications for available ranges (⇒ p. 101). 6 Select the input coupling method [Coupling] Select the coupling method for input signals (⇒ p. 65). [ DC, AC or GND ] 7 Select the low-pass filter [LPF] To suppress high-frequency components, select a low-pass filter within the input module (⇒ p. 66). [ Off, 5Hz, 500Hz, 5kHz or 100kHz ] 8 Select the probe attenuation [Probe] Select according to the cable or probe being used (⇒ p. 75). [ 1:1, 10:1, 100:1 or 1000:1 ] 9 Set the response speed [Response] Select the response speed (⇒ p. 72). [ Fast, Medium or Slow ] 10 Perform zero adjustment [Zero-Adjust] Perform at least 30 minutes after turning power on (⇒ p. 76). Set up scaling Set as occasion demands. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual 10 ([One Ch] Page of Channel Setting Screen) 8 Execute to adjust input signal offset. (⇒ p. 76) 1 2 3 5 6 4 9 Example: Measuring RMS values The [DC] measurement mode is se- lected upon system reset. 7

64 Select the appropriate measurement range. The setting value is the units per division on the vertical axis. Use the RANGE/POSN knob to make the setting independently from the cursor position. Setting Item: [Range] • Refer to "Chapter 5 Specifications" (⇒ p. 83) for the extents of the measure- ment ranges. • If the range is undetermined, auto-range selection can be enabled. Refer to "3.3.5 Automatic Range Setting (Auto-Ranging Function)" in the Instruction Manual • When data has been stored in the instrument’s memory, an asterisk “∗” appears beside the data value’s measurement range. • When a portion of the input waveform is outside of the measurement range, that portion is indicated by a different color on the display. Voltage Axis Range When variable auto adjustment is enabled [On] (default setting) and the variable function is enabled, the variable setting becomes linked for measurement range changes. If you do not want the display area of the screen to change, disable variable auto adjustment [Off]. See "12.2.7 Performing Variable Function Auto Adjustment" in the Instruction Manual Temperature Measurement About Measurement Range, Upper and Lower Input Limits and the Wave- form Display: The upper and lower limits of measurement input depend on the measurement range. Measurement is not available outside of the temperature range limits in the fol- lowing tables: 3.10 About Setting Contents 3.10.1 Measurement Range Setting Minimum Resolution If the range is changed while measuring, acquired data is deleted and data recording is restarted. Model 8937 Voltage/Temp Unit Measurement Range [°C/div] 10 20 50 100 Upper Limit [°C] 400 800 2000 4000 Lower Limit [°C] -92 -184 -460 -920 Model 8958 16-Ch Scanner Unit Measurement Range [°C/div] 10 50 100 Upper Limit [°C] 200 1000 2000 Lower Limit [°C] -100 -200 -200

65 Example: Zero position = 50%, Magnification = ×1, Thermocouple = type T (using Model 8973) (Measurement input range of T = -200 to 400°C Select the coupling method for input signals Available selections depend on the input module and measurement mode. Measurement range: 50°C/div (-460 to 2000°C) When T measurement input range exceeded Measurement range: 20°C/div (-184 to 800°C) Lower limit of measurement range (-184°C) exceeded Upper limit of mea- surement input range exceeded Lower limit of mea- surement range ex- ceeded Upper limit of T measurement input Lower limit of T measurement input Lower limit of mea- surement input range exceeded Thermocouple: T Measurement Range 3.10.2 Setting Input Coupling Setting Item: [Coupling] Selections Description DC DC Coupling (Default setting) Select this to acquire both DC and AC components of an input signal. AC AC Coupling Select this to eliminate any DC component from an input signal. Use this to measure only the ripple component superimposed on pulsating currents. GND The input signal is disconnected. Zero position can be confirmed. Input modules Modes Selections 8936 Voltage DC AC GND 8937 Voltage DC AC GND Temp DC − − 8938 FFT DC AC GND 8940 Frequency, Rotation, 50/60Hz, Count, Duty DC − − Voltage DC AC GND Current depends on the particular clamp 8946 Voltage DC − GND 8947 Voltage DC AC GND Charge, Preamp − AC GND 8959 DC, RMS DC AC GND 8956 Voltage DC AC GND 8957 Voltage DC AC GND

66 To suppress high-frequency components, select a low-pass filter within the input module Available selections depend on the input module and measurement mode. * When the digital filter is enabled [On], only Off, 5 Hz and 500 Hz selections are available. 3.10.3 Low-Pass Filter (LPF) Settings Setting Item: [LPF] Selections Description Off The low-pass filter is disabled. (Default setting) 5Hz Applies a filter with 5-Hz cutoff frequency. 500Hz Applies a filter with 500-Hz cutoff frequency. 5kHz Applies a filter with 5-kHz cutoff frequency. 100kHz Applies a filter with 100-kHz cutoff frequency. Input modules Modes Selections [Hz] 8936 Voltage Off, 5, 500, 5 k, 100 k 8937 * Voltage Off, 5, 500, 5 k, 100 k Temp Off, 5, 500 8938 Voltage Off, 5, 500, 5 k, 100 k 8939 Strain Off, 10, 30, 300, 3 k 8940 Voltage Off, 5, 500, 5 k, 100 k 8946 Voltage Off, 5, 500, 5 k, 50 k 8947 Voltage Off, 5, 500, 5 k, 100 k Charge, Preamp Off, 500, 5 k 8956 Voltage Off, 5, 500, 5 k, 1 M 8957 Voltage Off, 5, 50, 500, 5 k, 50 k 8959 DC, RMS Off, 5, 500, 5 k, 100 k 8960 Strain Off, 5, 10, 100, 1 k

67 Enable the anti-aliasing filter to remove aliasing distortion. The cutoff frequency is automatically set according to the time axis range setting. Noise can be removed by applying additional averaging to the measurement data within the input module. With the 8937 Voltage/Temp Unit, digital filtering is available only in the mea- surement ranges from 500 µV to 2 mV/div. The digital filter is not available in other ranges. 3.10.4 Anti-Aliasing Filter (AAF) Settings Setting Item: [AAF] Selections Description Off The anti-aliasing filter is disabled. (Default setting) On The anti-aliasing filter is enabled. (When the Recorder function or External sampling is used, the anti- aliasing filter (AAF) is not available.) To perform sampling for analysis without being affected by aliasing distortion We recommend using an input module that supports anti-aliasing filtering. (Sup- porting input module models: 8938, 8947 and 8957) Printing setting data (List Print) Settings can be printed as follows: (Example) When enabled: “AAF ON” 3.10.5 Digital Filter (Digital F) Settings Setting Item: [Digital F] Selections Description 8937 Off The digital filter function is disabled. (Default setting) On The digital filter function is enabled. (Data refresh rate: Approx. 100 µs) 8958 Off The digital filter function is disabled. (Default setting) 60Hz, 50Hz or 10Hz The digital filter function is enabled. The data refresh rate is affected by the filter setting. See "5.2.10 Model 8958 16-Ch Scanner Unit" (⇒ p. 99) Printing setting data (List Print) Settings can be printed as follows: Example: Enabled = “Digital F ON"

68 Set to match the type of thermocouple being used. When connecting a thermocouple directly to the input module, select [Internal]. Reference junction compensation is performed within the input module. When connecting through a reference junction device (e.g., a 0°C control tank), select [External]. 3.10.6 Thermocouple (Sensor) Type Setting Setting Item: [Sensor] 8937 Voltage/Temp Unit Selections Measurement Range Selections Measurement Range K -200 to 1350°C R 0 to 1700°C J -200 to 1100°C S 0 to 1700°C E -200 to 800°C B 300 to 1800°C T -200 to 400°C N -200 to 1300°C 8958 16-Ch Scanner Unit Selections Measurement Range Selections Measurement Range K -200 to 1350°C R 0 to 1700°C J -200 to 1200°C S 0 to 1700°C E -200 to 1000°C B 400 to 1800°C T -200 to 400°C W 0 to 2000°C N -200 to 1300°C 3.10.7 Reference Junction Compensation Setting Setting Item: [RJC] Selections Description Internal Reference junction compensation is provided within the input mod- ule. (Default setting) (Measurement Accuracy: The sum of the accuracies of the temper- ature measurement and the reference junction compensation.) External Reference junction compensation is not provided within the input module. (Measurement Accuracy: The accuracy of temperature measure- ment only)

69 This function periodically corrects for drift of the reference potential (about once per second) to improve thermal characteristics in thermocouple mode. A broken thermocouple wire can be detected during temperature measurement. Normally when a thermocouple wire breaks, measured values exhibit random instability. 3.10.8 Drift Correction Setting Setting Item: [Drift] Selections Description Off Drift correction is disabled. (Default setting) On Drift correction is enabled. • Data refresh rate is about once per second when drift correction is enabled. • Drift correction is available only while measuring. It does not affect the Level Monitor on the Waveform and Channel Setting screens. 3.10.9 Disconnect (Burn-Out) Detection Setting Setting Item: [Burn-Out] Selections Description Off Broken wires are not detected. On Broken wires are detected. When a broken wire is present, the waveform trace stays at the top of the screen and the cursor value is displayed as “+OVER”. Wire breakage is detected by sensing a miniscule current flow (about 200 nA) through the thermocouple. If the thermocouple wires are long or composed of a high-resistance material, set [Burn-Out] to [Off] to avoid measurement errors.

70 During measurement, the measured frequency value can be retained by the Hold function until the frequency of the next cycle has been determined. Also, if the value is not retained and the next value cannot be determined within a specified period, one half of the last measured value can be displayed. Example: Measuring the phenomena of stopping a rotating body 3.10.10 Hold Setting Setting Item: [Hold] Selections Description On Retains the measured value until the next frequency value is deter- mined. 10-ms Off If the next frequency value is not determined within 10 ms, the last value is divided in half. (Default setting) 1-s Off If the next frequency value is not determined within 1 s, the last val- ue is divided in half. The on/off settings of the Hold and Pull-Up functions are not indicated on the Waveform screen. The settings are indicated on the Channel Settings screen. What is the difference between Hold On and Off? When measuring frequency and rotation rate, results are displayed only after the value of one cycle has been determined. When Hold is On, the previously measured value is retained, and with Hold Off, one half of the previous value is displayed if a new value cannot be determined within the specified period. Rotation Stops Hold: On The previously measured value is retained continuously until the next cycle is determined. Because the next cycle never occurs, the stopping condition is not detected. Hold: Off If the cycle is not detected within the specified period (10 ms or 1 s), half of the value of the previous signal is dis- played. As a result, the displayed value gradually approaches zero, allowing the stopping condition to be estimated. Rotation Stops

71 Example: Measuring frequency dropping to 0 Hz, and then increasing The pull-up resistance function is used when connecting to an open-collector output signal. The input terminal is pulled up to +5 V. Set Pull-Up to Off for normal measurements. Actual Phenomena Frequency drops from a certain cycle to 0 Hz, and then increases from that point. Hold: 10-ms Off At frequencies below 100 Hz, the displayed value is suc- cessively halved to 0 Hz. However, until the frequency reaches 100 Hz again, the halved signal is now added. Hold: On The previous value is retained until the 0-Hz event. Hold: 1-s Off At frequencies below 1 Hz, the displayed value is succes- sively halved to 0 Hz. However, until the frequency reaches 1 Hz again, the halved signal is now added. 200 100 0 [Hz] 2 1 0 [Hz] 3.10.11 Pull-Up Setting Setting Item: [Pull-Up] Selections Description Off Pull-up resistance is disable (Off). On Pull-up resistance is enabled. (for connection to open-collector out- put)

72 Sets threshold value. Measures when the waveform crosses a preset threshold. Values can also be entered by numeric keypad. See "3.3.3 Entering Text and Numbers" in the Instruction Manual Response can be set to three speeds: Fast, Medium and Slow. Normally set to [Fast], this can be changed to [Medium] or [Slow] to stabilize the display when measuring low frequencies, or when severe fluctuations are present. 3.10.12 Threshold Setting Setting Item: [Threshold] Selections Description ↑↑ Increases value by large steps. ↑ Increases value by small steps. ↓ Decreases value by small steps. ↓↓ Decreases value by large steps. Measurement results may differ according to the threshold setting. To obtain the correct measurement results, set the threshold level to suit the input waveform. 5 [V] 0 -5 Threshold Threshold Setting Example 3.10.13 Response (Timing) Setting Setting Item: [Response] Selections Description Fast Sets the response time to about 100 ms. Medium Sets the response time to about 800 ms. Slow Sets the response time to about 5 s.

73 Sets the value per m/s2 defined for the acceleration sensor to be used. Setting Item: [Sensitivity] Setting Range: 0.1 to 10 (pC/(m/s2)) [Charge], 0.1 to 10 (mV/(m/s2) [Preamp] When using a sensor with specified value per G: See Example 2 of the "Sensor Sensitivity Setting Examples" (⇒ p. 73) To use a sensor outside of the setting range: See "To Use a Sensor Outside of the Setting Range" (⇒ p. 74) Sensor Sensitivity Setting Examples Setting Example 1: When using a sensor with sensitivity specified in units of m/s2 If the specified sensor sensitivity is 1.08 pC/(m/s2) Sensor sensitivity setting value: 1.08 Setting Example 2: When using a sensor with sensitivity specified in units of G An acceleration sensor with sensitivity specified in units of G can be set by divid- ing the specified sensitivity value by 9.8 (m/s2). If the specified sensor sensitivity is 64.0 (pC/G): 64.0 / 9.8 = 6.53 (pC/(m/s2)) Sensor sensitivity setting value: 6.53 Set up scaling as follows. 3.10.14 Sensor Sensitivity Setting The measurement range can be affected by the sensor sensitivity. So sensor sensitivity should be set before setting the measurement range. To convert [m/s2] units to [G] for display This instrument measures charge value in units of m/s2. The scaling function can be used to convert to charge value in units of G. See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual • Conversion ratio setting [Ratio] Conversion ratio: 1/9.8 = 0.1020E+00 Offset: 0.0000E+00 Units: G • Two-point setting [2-Point] Entry 1: 9.8000E+00 Physical value 1: 1.0000E+00 Entry 2: 0.0000E+00 Physical value 2: 0.0000E+00 Units: G

74 To Use a Sensor Outside of the Setting Range The scaling function can be employed to use a sensor outside of the setting range. 1 On the Channel Settings screen, select the channel on which to use the sensor outside of the setting range. 2 Move the cursor to [Sensitivity] to set the sensor sensitivity. Enter a multiplier value that will produce a settable value (0.1 to 10) when multi- plied by the actual sensitivity of the sensor. 3 Move the cursor to [Scaling], and set it to [On]. 4 Set the conversion ratio to the sensitivity multiplier value. Setting Example 1: If the specified sensor sensitivity is 23.4 pC/(m/s2): Set 1/2.34 as the sensor sensitivity multiplier, and 10 (pc/m/s2)) as the sensor sensitivity. Scaling is set as follows to display measured values multiplied by 1/2.34. Setting Example 2: If the specified sensor sensitivity is 0.05 pC/(m/s2) Set the sensor sensitivity multiplier to 2, and the sensor sensitivity to 0.1 (pc/m/ s2)). Scaling is set as follows to display measured values multiplied by 2. • Conversion ratio setting [Ratio] Conversion ratio: 10/23.4 = 0.4274E+00 Offset: 0.0000E+00 Units: m/s2 • Two-point setting [2-Point] Input 1: 2.3400E+01 Scale 1: 1.0000E+01 Input 2: 0.0000E+00 Scale 2: 0.0000E+00 Units: m/s2 • Conversion ratio setting [Ratio] Conversion ratio: 0.1/0.05 = 2.0000E+00 Offset: 0.0000E+00 Units: m/s2 • Two-point setting [2-Point] Input 1: 0.0500E+00 Scale 1: 0.1000E+00 Input 2: 0.0000E+00 Scale 2: 0.0000E+00 Units: m/s2

75 Probe attenuation can be selected when measuring using a connection cable, differential probe or attenuating probe. (Only for voltage measurement) By matching the input channel probe setting to the attenuation ratio of a probe connected to an analog input module, the voltage axis range is automatically converted for direct reading of numerical values. Each channel should be set to match the attenuation ratio of its input probe. When using the Model 8940 F/V Unit with the 9322 Differential Probe: When supplying power from the Model 9687 Probe Power Unit, either of the above settings can be selected. The factory default and system reset default setting is 1:1. Set to suit the sensor to be used. 3.10.15 Probe Attenuation Selection Setting Item: [Probe] Selections Description 1:1 Select this setting when measuring with the Model 9197, 9198 or 9217 cable connected to the input module. 10:1 Select this setting when measuring with the Model 9665 10:1 Probe connected to the input module. 100:1 Select this setting when measuring with the Model 9666 100:1 Probe connected to the input module. 1000:1 Select this setting when using the 9322 Differential Probe. 9322+9325 Select this setting when using the Model 9325 Power Cord to con- nect the 9322 Differential Probe. 9322+9418 Select this setting when using the Model 9418-15 AC Adapter to connect the 9322 Differential Probe. Some probes cannot be used with certain input modules. See "1.3 List of Input Modules, Cables, Probes and Clamp Combinations" (⇒ p. 11) 3.10.16 Bridge Voltage Setting Setting Item: [Bridge] Selections Description 2V Sets the bridge voltage to 2 V (Bridge resistance = 120 Ω to 1 kΩ) 5V Sets the bridge voltage to 5 V (Bridge resistance = 350 Ω to 1 kΩ) 10V Sets the bridge voltage to 10 V (Bridge resistance = 350 Ω to 1 kΩ) This setting should not exceed the allowable applied voltage for the strain gauge type converter to be used. Otherwise, converter specifications will not be satis- fied, and correct measurements will not be possible.

76 The input module can apply an internal offset to set the reference potential of the instrument to zero volts. Adjustment applies to the currently selected range. Before executing zero adjustment • Turn power on and wait 30 minutes to allow the internal temperature of the input module to stabilize. (Some input modules may require one hour warm- up.) • Zero adjustment cannot be performed while measuring. • Key operations are not accepted while zero adjustment is executing. To execute zero adjustment Move the cursor to the [Zero-Adjust] button, and select F1 [Execute]. Zero adjustment can be performed from the CH SET dialog on the Waveform screen. The input value can be forced to display as zero volts. Input signal bias, such as sensor emf, can be adjusted to display as zero volts. This function applies to voltage and current measurement. See " What is the difference between Offset Cancellation and Zero Adjustment?" (⇒ p. 77) Before executing offset cancellation Connect the probe or clamp to the measurement object and apply the input sig- nal that is supposed to measure zero volts. See "About input voltage during offset cancellation" (⇒ p. 77) When also using scaling, execute offset cancellation before setting the scaling. To execute offset cancellation Move the cursor to the [Offset Cancel] button, and select F1 [Execute]. An asterisk "∗" appears on the [Offset Cancel] button when offset cancellation is active. To revert to the offset value prior to executing offset cancellation, select F2 [Reset]. 3.10.17 Executing Zero Adjustment Zero adjustment is not applicable to the following modules: • The [Temp] mode of the Model 8937 Voltage/Temp Unit • Model 8939 Strain Unit • Modes other than [Voltage] and [Current] of the Model 8940 F/V Unit • Model 8958 16-Ch Scanner Unit In the following cases, zero adjustment should be executed again. • After an input module has been removed or inserted • After power has been turned off and on • After complete reinitialization • When ambient temperature has changed significantly The zero position may have drifted. When using the Model 8958 16-Ch Scanner Unit, zero position adjustment of the module from the System screen may be needed. See "Scanner Unit Zero Position Adjustment" (⇒ p. 27) 3.10.18 Executing Offset Cancellation

77 About input voltage during offset cancellation A constant input voltage is required to execute offset cancellation. If the input voltage is fluctuating, the offset to zero volts depends on the timing of offset cancellation execution. Offset cancellation Offset cancellation is not reset even when power is turned off. It is reset when the input module configuration is changed (after an input module has been inserted or removed). What is the difference between Offset Cancellation and Zero Adjust- ment? Offset cancellation adjusts for input signal bias if there is a potential difference between the reference potential of the measurement object and the reference potential (0 V) of this instrument, so that the reference potential of the measure- ment object appears as zero volts. Zero adjustment sets the input module’s internal bias so the reference potential of the instrument is zero volts. Offset cancellation cannot be executed in the following cases: • When measuring other than voltage or current • When the input voltage is more than ±10 divisions from zero The maximum input voltage and maximum rated voltage to ground are unaffected by offset cancellation of an input voltage to zero volts. There- fore, careful attention is necessary during measurement. When input voltage is constant When input voltage is fluctuating Offset voltage +V1 is set to display as zero regardless of execution time. The offset voltage set to display as zero depends on the timing of offset cancellation execution. If “Warning: Offset Cancel failed.” appears This appears when executing offset cancellation if the input voltage is more than ±10 divisions from zero volts. To avoid the warning, set the input signal within ±10 divisions of zero volts. Offset cancellation reference potential is +V. Waveform after executing offset cancellation Input Signal Waveform

78 Auto-balance sets the reference output level of a transducer to the specified zero position. It is applicable only to a strain module. Before executing auto-balance • Turn power on and wait 1 hour to allow the internal temperature of the input module to stabilize. • With the sensor connected to the input module, execute auto-balance under stable input conditions. • Auto-balance cannot execute during measurement. • Key operations are not accepted while auto-balance is executing. To execute auto-balance Move the cursor to the [Auto-Balance] button, and select F1 [Execute]. Auto-balance can be performed from the CH SET dialog on the Waveform screen (when the unit and channel numbers of the strain module is selected). In the following cases, auto-balance should be executed again. • After changing the measurement range • After an input module has been removed or inserted • After the strain gauge transducer has been replaced • After power has been turned off and on • After performing a system reset • When ambient temperature has changed significantly (the zero position may drift) 3.10.19 Executing Auto-Balance If “Warning: Auto balance failed.” appears The channel on which auto-balance failed is displayed. Verify the following, and execute again: • Is the sensor in a discharged state? (Make sure that it is not being subject to vibration, etc.) • Is the sensor connected correctly?

79 After turning power on, set the measurement criteria before measuring. This chapter describes the settings related to logic inputs. Refer to "7.3 Displaying Logic Waveforms" in the Instruction Manual for setting details. Measurement status and trigger settings are the same as for analog inputs. Refer to the related chapters in the Instruction Manual. Logic Input Settings Chapter 4 4.1 Operation Overview (Select the Function) To record simultaneously with an analog signal, select a function that suits the analog input. When recording only logic signals, the function can be set freely. Select the measurement status and channels (For Memory Function) [Use Ch] page on Status Settings screen Enable (set to On) the logic channels to be used. See "4.2.1 Selecting Channels to Use" in the Instruction Manual Set up input channels [Logic] page on Channel Settings screen Select whether to enable (On) or disable (Off) the input waveform for each logic channel probe. (Default setting: All Off) Select waveform colors as desired. See "7.3 Displaying Logic Waveforms" in the Instruction Manual Set trigger criteria [Logic] page on Trigger Settings screen To apply a trigger event for measurements, set the logic trigger for each channel. See "6.8 Triggering by Logic Signals (Logic Trigger)" in "Chapter 6 Trigger Settings" in the Instruction Manual Waveform display settings [Logic] page on Sheet Settings screen Select the channels to appear on the waveform display. (Default setting: All On) Set the waveform display position and height for each channel as needed. See "7.2 Setting the Screen Layout of the Waveform Screen (Sheet Set- tings Screen)" and "7.3 Displaying Logic Waveforms" in the Instruction Manual Start Measurement

80 4.2 Setting Procedure Display Settings Screen Press the SET key. The Settings screen appears. Function setting is not needed. Selecting channels to use (when displayed with the memory function) Status Settings Screen Logic Channel A to D 1 Press the SUB MENU keys to select the [Status] menu item. 2 Press the SHEET/PAGE keys to select the [Use Ch] page. To record simultaneously with analog input: See "4.2.1 Selecting Channels to Use" in the Instruction Manual 3 Use the CURSOR keys to move the cursor to the Set- ting column of the logic channel, and press the F2 [On] key. 1 2 3 LOGIC Receptacles CH D CH C CH B CH A Logic Channels (Default setting: depends on the settings of the channels to be used)

81 3 4 Select the time axis range and recording length Status Setting Screen (with memory function) 1 Press the SUB MENU keys to select the [Status] menu item. 2 (When using the memory function) Press the SHEET/PAGE keys to select the [Basic] page. 3 (To record only logic inputs) Use the CURSOR keys to move the cursor to [Time base], and press an F key to select the time per divi- sion for the horizontal axis. (When the Timebase 2 is enabled [On], and only logic inputs are assigned) Set the sampling rate. 4 Use the CURSOR keys to move the cursor to [Shot] (Recording Length), and press an F key to select the number of divisions for the recording time. About measurement configuration (timebase, recording length, etc.) See "Chapter 4 Measurement Configuration Settings" in the Instruction Manual 1 2 3 Select the input channels Channel Settings Screen Probes Logic Channels 1 Press the SUB MENU keys to select the [Channel] menu item. 2 Press the SHEET/PAGE keys to select the [Logic] page. The [Logic] page of the Channel Setting screen appears. 3 Use the CURSOR keys to move the cursor to the Setting column for each probe (1 to 4) of the logic channel, and press the F2 [On] key. (On = display waveform, Off = do not display waveform) To change a waveform’s color, move the cursor to the waveform display color setting column and select the color with the F1 or F2 key. See "7.3.1 Setting the Waveform Display" in the Instruction Manual If you want to enter comments for individual channels: Select the [Comment] page. See "5.2 Adding Comments" in the Instruction Manual 1 2 (Default setting: [Off]) Waveform Display On/Off Waveform Display Color

82 2 Set the trigger conditions (if applying a trigger) Trigger Settings Screen 1 Press the SUB MENU keys to select the [Trigger] menu item. 2 Press the SHEET/PAGE keys to select the [Logic] page. The [Logic] page of the Trigger Settings screen appears. 3 Use the CURSOR keys to move to each channel to be triggered, and set each as needed. See "6.8 Triggering by Logic Signals (Logic Trigger)" in the Instruction Manual 4 Set triggering as occasion demands. See "Chapter 6 Trigger Settings" in the Instruction Manual 1 Logic Channels Set the trigger pattern for each probe Select AND/OR trigger conditions. Set the trigger filter width. Prevents noise from causing false triggers. (Default setting: Logic trigger [Off]) 3 Set the trigger detection method. Set the waveform display method (as occasion demands) Sheet Settings Screen 1 Press the SUB MENU keys to select the [Sheet] menu. 2 Press the SHEET/PAGE keys to select the [Logic] page. The [Logic] page of the Sheet Settings screen appears. 3 Use the CURSOR keys to move to a logic channel to be displayed, and press the F keys to select the setting contents for each item. See "7.3.2 Setting the Display Position" and "7.3.3 Set- ting the Display Height" in the Instruction Manual Setting other display sheets See "Chapter 7 Waveform Display Settings" in the Instruction Manual 1 2 3 (Default setting: All logic channels displayed [On]) Set storage and printing as occasion demands, then start measuring. Logic Channels Set display of each channel on or off. Waveform display positions can be modified. Display height can be modified.

83 Refer to "Safety Information" for the “Measurement Category (Overvoltage Category)” in the Quick Start Manual. Specifications Chapter 5 5.1 Logic Input Section 5.1.1 Model 9327 Logic Probe Temperature and humidity range for guaranteed accu- racy Period of guaranteed accu- racy 23 ±5°C(73±9°F), 35 to 80% RH 1 year The number of input chan- nels 4 channels (Common ground between chassis and between channels) Input type Digital input / Contact input Input type can be selected for each channels. Open collector outputs can be directly measured using contact inputs. Input resistance 1 MΩ±5% (Digital input: 0 to +5 V) 500 kΩ or more (Digital input: +5 to +50 V) Pull-up resistance 2 kΩ (Contact inputs: internally connected through pull-up resistance to +5 V) Detecting level Response pulse width 100 ns or more Maximum input voltage 0 to +50 VDC Operating temperature and humidity ranges 0 to 40°C (32 to 104°F), 80%RH or less (non-condensating) Storage temperature and humidity ranges -10 to 50°C (14 to 122°F), 90%RH or less (non-condensating) Operating environment Altitude up to 2000 m (6562-ft.), indoors Dimensions Approx. 62W x 94H x 20D mm (2.44"W x 3.70"H x 0.79"D) (sans protrusions) Connector cable length Approx. 1500 mm (59") Probe tip cable length Approx. 300 mm (11.8") Mass Approx. 150 g (5.3 oz.) (including connector cable, excluding input leads) Accessories IC clip leads, Alligator clip leads, Carrying case, Instruction Manual Digital input Threshold value Contact input Detecting resistance value 1.4 V range 1.4 V±0.3 V more than 1.5 kΩ less than 500Ω opened (Output L) shorted (Output H) 2.5 V range 2.5 V±0.4 V more than 3.5 kΩ less than 1.5 kΩ opened (Output L) shorted (Output H) 4.0 V range 4.0 V±0.5 V more than 25 kΩ less than 8 kΩ opened (Output L) shorted (Output H)

84 5.1.2 Model 9321-01 Logic Probe Temperature and humidity range for guaranteed accu- racy Period of guaranteed accu- racy 23 ±5°C(73±9°F), 35 to 80% RH 1 year The number of input chan- nels 4 channels (Isolated from chassis and between channels) Input voltage range LOW HIGH Input resistance More than 30 kΩ More than 100 kΩ Detecting level (Output: L) (Output: H) 0 to 10 VAC ±(0 to 15) VDC 60 to 150 VAC ±(20 to 150) VDC 0 to 30 VAC ±(0 to 43) VDC 170 to 250 VAC ±(70 to 250) VDC Response time (Rising) ↑ (Falling) ↓ Less than 1 ms Less than 3 ms at 100 V DC Less than 1 ms Less than 3 ms at 200 V DC Maximum input voltage 150 V rms 250 V rms Maximum rated voltage to earth 250 V rms Dielectric strength 2.3 kVAC for 1 minute (between each input channel and chassis, and between input channels) Insulation resistance At least 100 MΩ at 500 V DC (between each input channel and chassis, and between input channels) Operating temperature and humidity ranges 0 to 40°C (32 to 104°F), 80%RH or less (non-condensating) Storage temperature and humidity ranges -10 to 50°C (14 to 122°F), 90%RH or less (non-condensating) Operating environment Altitude up to 2000 m (6562-ft.), indoors Dimensions Approx. 62W x 128H x 20D mm (2.44"W x 5.04"H x 0.79"D) (sans protrusions) Connector cable length Approx. 1500 mm (59") Probe tip cable length Approx. 1000 mm (39.37") Mass Approx. 320 g (11.3 oz.) Accessories Carrying case, Instruction Manual • Absolute values are detected, so either polarity DC may be input. AC voltage is evaluated as a 50/60-Hz standard sine wave. • On/off judgment of the input signal is performed within the above detection range. On/off judgment of input signals cannot be performed correctly with input voltage between L and H detection levels.

85 5.1.3 Model 9320-01 Logic Probe Temperature and humidity range for guaranteed accu- racy Period of guaranteed accu- racy 23 ±5°C(73±9°F), 35 to 80% RH 1 year The number of input chan- nels 4 channels (Common ground between chassis and between channels) Input type Digital input / Contact input Input type can be selected for each channel. Open collector outputs can be directly measured using contact inputs. Input resistance Digital input: 1 MΩ±5% (0 to +5 V), 500 kΩ or more (+5 to +50 V) Contact inputs: Approx. 2 kΩ (input terminals are connected to +5 V through 2-kΩ resis- tance) Detecting level Response time Less than 500 ns Maximum input voltage 0 to +50 VDC Operating temperature and humidity ranges 0 to 40°C (32 to 104°F), 80%RH or less (non-condensating) Storage temperature and humidity ranges -10 to 50°C (14 to 122°F), 90%RH or less (non-condensating) Operating environment Altitude up to 2000 m (6562-ft.), indoors Dimensions Approx. 62W x 94H x 20D mm (2.44"W x 3.70"H x 0.79"D) (sans protrusions) Connector cable length Approx. 1500 mm (59") Probe tip cable length Approx. 300 mm (11.8") Mass Approx. 150 g (5.3 oz.) (including connector cable, excluding input leads) Accessories IC clip leads, Alligator clip leads, Carrying case, Instruction Manual Digital input Threshold value Contact input Detecting resistance value 1.4 V range 1.4 V±0.3 V more than 1.5 kΩ less than 500Ω opened (Output L) shorted (Output H) 2.5 V range 2.5 V±0.4 V more than 3.5 kΩ less than 1.5 kΩ opened (Output L) shorted (Output H) 4.0 V range 4.0 V±0.5 V more than 25 kΩ less than 8 kΩ opened (Output L) shorted (Output H)

86 Input module specifications are described here. Measurement error caused by sig- nal source impedance • Errors occur when the signal source impedance is greater than the input impedance of the module. • The input impedance of the Model 8936 Analog Unit is 1 MΩ. Errors of about 0.1% occur when the signal source impedance is 1 kΩ. 5.2 Analog Input Section Measurement Error Es 1 Rin Rs Rin + ----------------------- – [V] Es: signal voltage Rs: signal source impedance Rin: input impedance = 5.2.1 Model 8936 Analog Unit Temperature and humidity range for guaranteed accuracy Period of guaranteed accuracy 23 ±5°C(73±9°F), 35 to 80% RH (when zero adjustment is executed 30 minutes after power on) 1 year Measurement ranges 5 m, 10 m, 20 m, 50 m, 100 m, 200 m, 500 m, 1, 2, 5, 10, 20 V/div DC amplitude accuracy ±0.4%f.s. Zero position accuracy ±0.1%f.s. (after zero adjustment) Temperature characteristic Gain: ±0.025%f.s./°C Zero position: ±0.02%f.s./°C (after zero adjustment) Frequency characteristic DC coupling: DC to 400 kHz ±3 dB AC coupling: 7 Hz to 400 kHz ±3 dB (low cut-off frequency: 7 Hz±20%) Noise 450 μV p-p typ., 750 μV p-p max. (sensitivity range, with input shorted) (S/N 2004-041018235 and later) Common mode rejection ratio 80 dB minimum (at 50/60 Hz and with signal source resistance 100 Ω maximum) Low-pass filter OFF, 5±50%, 500±50%, 5k±50%, 100k±50% (Hz) -3 dB Input type Unbalanced (input isolated from output) Input coupling DC, GND, AC Input resistance 1 MΩ±1% Input capacitance 30 pF±10 pF (at 100 kHz) A/D resolution 12 bits Voltage axis resolution 80 points/div (with 1X magnification) Maximum sampling rate 1 MS/s (sampling period: 1 μs) Input terminals Insulated BNC terminal Maximum input voltage 400 VDC Maximum rated voltage to earth 370 VAC/DC (between each input channel and chassis, and between input channels) Operating temperature and humidity ranges Same as the host Memory HiCorder Operating environment Same as the host Memory HiCorder Storage temperature and humidity ranges -10 to 50°C (14 to 122°F), 80% RH or less (non-condensating) Effect of radiated radio- frequency electromagnetic field ±2%f.s. at 3 V/m max.

87 Effect of conducted radio- frequency electromagnetic field ±40%f.s. at 3 V max. (100 mV/div with 1 V DC input) Dielectric strength 3.7 kVAC for 1 minute (between input module and chassis, and between input modules) Dimensions Approx. 170W x 20H x 148.5D mm (6.69”W x 0.79”H x 5.85”D) (sans protrusions) Mass Approx. 290 g (10.2 oz.) Applicable Standards Safety EMC EN 61010 Pollution degree 2, Measurement category II (anticipated transient overvoltage 4000 V) EN 61326 Class A

88 5.2.2 Model 8937 Voltage/Temp Unit General specifications Temperature and humidity range for guaranteed accu- racy Period of guaranteed accu- racy 23 ±5°C(73±9°F), 35 to 80% RH (when zero adjustment is executed 1 hour after power on) 1 year Common mode rejection ra- tio 80 dB min. (at 50/60 Hz and with signal source resistance 100 Ω max.) Input type Unbalanced (input isolated from output) A/D resolution 12 bits Maximum sampling rate 1MS/s (However, update rate differs with temperature input.) Maximum input voltage 30 V rms or 60 VDC (voltage and temperature inputs) Maximum rated voltage to earth 30 V rms or 60 VDC (voltage and temperature inputs) Operating temperature and humidity ranges Same as the host Memory HiCorder Operating environment Same as the host Memory HiCorder Storage temperature and humidity ranges -10 to 50°C (14 to 122°F), 80% RH or less (non-condensating) Effect of radiated radio- frequency electromagnetic field ±2% f.s. at 3 V/m max. (in 5-mV/div range) Effect of conducted radio- frequency electromagnetic field ±5% f.s. at 3 V max. (100 mV/div with 1 V DC input) Dimensions Approx. 170W x 20H x 148.5D mm (6.69”W x 0.79”H x 5.85”D) (sans protrusions) Mass Approx. 300 g (10.6 oz.) Applicable Standards Safety EMC EN 61010 Pollution degree 2, Measurement category I (anticipated transient overvoltage 330 V) EN 61326 Class A Voltage input Measurement ranges 500 μ, 1 m, 2 m, 5 m, 10 m, 20 m, 50 m, 100 m, 200 m, 500 m, 1, 2 V/div DC amplitude accuracy ±0.4%f.s. Zero position accuracy ±0.15%f.s. (after zero adjustment) Temperature characteristic Gain: ±0.02%f.s./°C, Zero position: ±0.03%f.s./°C Frequency characteristic DC to 400 kHz dB (in 500 μV to 2 V/div range) With digital filter ON: DC to 3 kHz dB (Data update rate: 100 μs±20% (in 500 μV to 2 mV/div range)) Noise 75 μVp-p typ.,120 μVp-p max. with digital filter OFF (in 500 μV/div range) 20 μVp-p typ., 30 μVp-p max. with digital filter ON (in 500 μV/div range) (S/N 2004-041135258 and later) Input terminals BNC terminal Input resistance 1 MΩ±1% Input capacitance 50 pF±20 pF (at 100 kHz) Input coupling DC, GND, AC Low-pass filter OFF, 5±50%, 500±50%, 5k±50%, 100k±50% (Hz) -3 dB +1 −3 +1 −3

89 Temperature input Measurement ranges 10, 20, 50, 100°C/div Measurement input range K: -200 to 1350°C E: -200 to 800°C J: -200 to 1100°C T: -200 to 400°C N: -200 to 1300°C R: 0 to 1700°C S: 0 to 1700°C B: 300 to 1800°C Temperature measurement accuracy K, E, J, T, N R, S B ±0.1% f.s.±1.0°C, ±0.1% f.s.±2.0°C (-200 to 0°C) ±0.1% f.s.±3°C ±0.1% f.s.±4°C (effective measurement range: 400 to 1800°C) Reference junction compen- sation Selectable internal or external Reference junction compen- sation accuracy ±0.1% f.s.±1.5°C (with internal reference contact compensation and input terminal in state of temperature equilibrium) Temperature characteristic ±0.05%f.s./°C (sensor: K, E, J, T, N, with drift compensation mode OFF) ±0.25%f.s./°C(sensor:R,S,B, with drift compensation mode OFF) ±0.04%f.s./°C(all sensors, with drift compensation mode ON) Frequency characteristic DC to 1 kHz dB Data update rate: 250 μs±70% (with drift compensation mode OFF) 1 s±20% (with drift compensation mode ON) Input terminals 2-terminal terminal block Input resistance 5.1 MΩ±5% Low-pass filter OFF, 5±50%, 500±50% (Hz) -3 dB +1 −3

90 5.2.3 Model 8938 FFT Analog Unit Temperature and humidity range for guaranteed accuracy Period of guaranteed accuracy 23 ±5°C(73±9°F), 35 to 80% RH (when zero adjustment is executed 30 minutes after power on) 1 year The number of input chan- nels 2 channels Measurement ranges 5 m, 10 m, 20 m, 50 m, 100 m, 200 m, 500 m, 1, 2, 5, 10, 20 V/div DC amplitude accuracy ±0.4%f.s. Zero position accuracy ±0.1%f.s. (after zero adjustment) Temperature characteristic Gain: ±0.025%f.s./°C Zero position: ±0.02%f.s./°C (after zero adjustment) Frequency characteristic DC coupling: DC to 400 kHz ±3 dB AC coupling: 7 Hz to 400 kHz ±3 dB (low cut-off frequency: 7 Hz±20%) Noise 500 μV p-p typ., 750 μV p-p max. (sensitivity range, with input shorted) (S/N 2004-041132533 and later) Common mode rejection ratio 80 dB minimum (at 50/60 Hz and with signal source resistance 100 Ω maximum) Low-pass filter OFF, 5±50%, 500±50%, 5k±50%, 100k±50% (Hz) -3 dB Anti-aliasing filter Cutoff frequency (fc): 20, 40, 80, 200, 400, 800, 2 k, 4 k, 8 k, 20 k, 40 kHz (These frequencies are automatically set when the anti-aliasing filter is set to ON) Atten- uation characteristic: -66 dB min. at 1.5 fc Input type Unbalanced (input isolated from output) Input coupling DC, GND, AC Input resistance 1 MΩ±1% Input capacitance 30 pF±10 pF (at 100 kHz) A/D resolution 12 bits Voltage axis resolution 80 points/div (with 1X magnification) Maximum sampling rate 1 MS/s (sampling period: 1 μs) Input terminals Insulated BNC terminal Maximum input voltage 400 VDC Maximum rated voltage to earth 370 VDC (between each input channel and chassis, and between input channels) Operating temperature and humidity ranges Same as the host Memory HiCorder Storage temperature and humidity ranges -10 to 50°C (14 to 122°F), 80% RH or less (non-condensating) Operating environment Same as the Memory HiCorder in which the 8938 is installed Effect of radiated radio- frequency electromagnetic field ±2%f.s. at 3 V/m max. Effect of conducted radio- frequency electromagnetic field ±28%f.s. at 3 V max. (100 mV/div with 1 V DC input) Dielectric strength 3.7 kVAC for 1 minute (between input module and chassis, and between input modules) Dimensions Approx.170W x 20H x 148.5D mm (6.69”W x 0.79”H x 5.85”D)(sans protrusions) Mass Approx.290g (10.2 oz.) Applicable Standards Safety EMC EN 61010 Pollution degree 2, Measurement category II (anticipated transient overvoltage 4000 V) EN 61326 Class A

91 5.2.4 Model 8939 Strain Unit Temperature and humidity range for guaranteed accuracy Period of guaranteed accuracy 23 ±5°C (73±9°F), 35 to 80% RH (When executing auto-balancing one hour after power on) 1 year The number of input channels 2 channels Measurement ranges 20, 50, 100, 200, 500, 1000 με/div DC amplitude accuracy ± (0.5%f.s. + 2 με) Zero position accuracy ±0.5%f.s. (after auto-balancing) Temperature characteristic Gain: ±0.05%f.s./°C Zero position: ±2 με/°C (20,50 με/div), ±0.1%f.s./°C (other ranges) Frequency characteristic DC to 20 kHz dB Appropriate adapter Strain gauge adapter, Bridge resistance: 120 Ω to 1 kΩ Bridge voltage 2 ± 0.05 V Balancing Electronic auto-balancing Balance adjustment range ±10000 με max Low-pass filter OFF, 10±30%, 30±30%, 300±30%, 3k±30% (Hz) -3 dB A/D resolution 12 bits Maximum sampling speed 1 MS/s (sampling period: 1 μs) Maximum input voltage 10 V (DC + AC peak) Maximum rated voltage to earth 30 Vrms or 60 VDC Operational ranges for temperature and humidity Same as the host Memory HiCorder Temperature and humidity ranges for storage -10 to 50°C (14 to 122°F), 80% RH or less (non-condensating) Operating environment Same as the host Memory HiCorder Effect of radiated radio frequency electromagnetic field ±5%f.s. at 3 V/m max. Effect of conducted radio- frequency electromagnetic field ±5%f.s. at 3 V max (20 με/div when +/− signal lines shorted together) Dimensions Approx. 170W x 20H x 148.5D mm (6.69”W x 0.79”H x 5.85”D ) Mass Approx. 250 g (8.8 oz.) Accessories Conversion cable X 2 (Compatible sensor connector: PRC03-12A10-7M10.5 by TAJIMI) Applicable Standards Safety EMC EN 61010 Pollution degree 2, Measurement category I (anticipated transient overvoltage 330 V) EN 61326 Class A +1 −3

92 5.2.5 Model 8940 F/V Unit General Specifications Temperature and humidity range for guaranteed accuracy Period of guaranteed accuracy 23 ±5°C(73±9°F), 35 to 80% RH (when zero adjustment is executed 30 minutes after power on) 1 year A/D resolution 12 bits Vertical axis resolution 80 LSB/div Measurement mode Frequency measurement, Count, Duty, Voltage measurement, Current measurement Maximum sampling period 1 μs Low-pass filter OFF, 5±50%, 500±50%, 5k±50%, 100k ±50% (Hz) -3 dB Input coupling DC, GND, AC (Fixed DC coupling except voltage and current measurement) Pull up ON/OFF (Constant OFF in current measurement) Pull up resistance: 10 kΩ BNC terminal Input resistance: 1 MΩ±1% (at pull-up OFF) Input capacitance: 60 pF±20 pF (at 100 kHz) Input type: Unbalanced (for Voltage, Frequency, Count, Duty) Note: With the 3273 or 3273-50, the BNC connector and sensor connector are used to- gether. GND is common with the Memory HiCorder in which the device is installed. Sensor connector terminal (Current measurement) Possible to connect 8 ch Note: With the 3273 or 3273-50, the BNC connector and sensor connector are used to- gether. GND is common with the Memory HiCorder in which the device is installed. Maximum input voltage 30 Vrms or 60 VDC Maximum rated voltage to earth 30 Vrms or 60 VDC (BNC) Operational ranges for temperature and humidity Same as the host Memory HiCorder Operating environment Same as the host Memory HiCorder Temperature and humidity ranges for storage -10 to 50°C (14 to 122°F) 80%RH or less (non-condensating) Effect of radiated radio- frequency electromagnetic field ±5 %f.s. at 3 V/m max. (in 5-mV/div range) Effect of conducted radio- frequency electromagnetic field ±28%f.s. at 3 V max. (100 mV/div with 1 V DC input) Dimensions Approx. 170 W x 20 H x 148.5 D mm(6.69"W x 0.79"H x 5.85"D)(sans protrusions) Mass Approx. 300 g (10.6 oz) Applicable Standards Safety EMC EN 61010 Pollution degree 2, Measurement category I (anticipated transient overvoltage 330 V) EN 61326 Class A Options 9318 Conversion Cable (for 9270, 9271, 9272, 9277, 9278, 9279) 9319 Conversion Cable (for 3273, 3273-50)