Sensotec SC1000 Manual 

Cells Accelerometers Displacement Transducers Instrumentation Additional Channels for SC Instrumentation Temperature (RTD) Input, Frequency Input

Columbus, Ohio 43228 USA Copyright © 2002 by Sensotec, Inc. all rights reserved Telephone: (614)850-5000 FAX: (614)850-1111 Toll Free: 1-800-848-6564 E-mail: [email protected] WWW: http://www.sensotec.com Additional Channels for SC Series Instrumentation Sensotec Document Number: 008-0608-01 Rev. -: March, 2002 IMPORTANT It is recommended that you read the “SC Series Instruction Manual”, Sen- sotec document 008-0608-00 before using the channels described herein. CAUTION: The operator of this instrument is advised that if the equipment is not used in a manner not specified in this manual, the protection pro- vided by the equipment may be impaired. CAUTION: Only qualified, service-trained personnel who are aware of the hazards involved should remove the cover from the instrument or connect external wiring to the instrument. Sensotec and the Sensotec logo are registered trademarks of Sensotec, Inc. Printed in U.S.A. Sensotec continually improves its products, and thus the information herein is subject to change without notice.

CONTENTS Contents Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 About This Manual . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.3 Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Related Documents . . . . . . . . . . . . . . . . . . . . . . 6 Chapter 2 RTD Input Channel . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.2 Getting Started Quickly . . . . . . . . . . . . . . . . . . . . 9 2.3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.3.1 Channel Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.3.2 4-Wire RTD Connection . . . . . . . . . . . . . . . . . . . . . . . . 10 2.3.3 3-Wire RTD Connection . . . . . . . . . . . . . . . . . . . . . . . . 11 2.3.4 2-Wire RTD Connection . . . . . . . . . . . . . . . . . . . . . . . . 11 2.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.5 Channel Specifications . . . . . . . . . . . . . . . . . . . . 13 2.6 Channel Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.6.1 OPER OPER OPER OPERAAAATION TION TION TION Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.6.2 DISP DISP DISP DISPLLLLAY UNITS AY UNITS AY UNITS AY UNITS Menu Item . . . . . . . . . . . . . . . . . . . . . 15 2.6.3 AUXn AUXn AUXn AUXn FUNCTION FUNCTION FUNCTION FUNCTION Menu Items . . . . . . . . . . . . . . . . . . . . 15 2.6.4 CALI CALI CALI CALIBBBBRATION T RATION T RATION T RATION TYYYYPE PE PE PE Menu Item . . . . . . . . . . . . . . . . . . . 16 2.6.5 CALI CALI CALI CALIBBBBRATION D RATION D RATION D RATION DAAAATA TA TA TA Sub-Menu . . . . . . . . . . . . . . . . . . . 17 2.6.6 CALI CALI CALI CALIBBBBRATE RATE RATE RATE Menu Item . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.6.7 DAC DAC DAC DAC SSSSETUP ETUP ETUP ETUP Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.6.8 DIAG DIAG DIAG DIAGNNNNOSTICS OSTICS OSTICS OSTICS Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . 20 2.7 Analog Output Configuration . . . . . . . . . . . . . . . . 21 2.7.1 Identifying the Output Type . . . . . . . . . . . . . . . . . . . . . 21 2.7.2 Channel Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2.7.3 Output Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2.8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 22 2.8.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2.8.2 Common Problems and Solutions . . . . . . . . . . . . . . . . 22 2.9 Communication Commands . . . . . . . . . . . . . . . . 23 2.9.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.9.2 Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Chapter 3 Frequency Input Channel . . . . . . . . . . . . . . . . . . . . . 33 3.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.2 Getting Started Quickly . . . . . . . . . . . . . . . . . . . . 33 3.3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.3.1 Channel Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.3.2 NPN Open-Collector Connection . . . . . . . . . . . . . . . . . 34 3.3.3 PNP Open-Collector . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 3.3.4 TTL/CMOS Logic Connection . . . . . . . . . . . . . . . . . . . 35 3.3.5 Magnetic Pickup Connection . . . . . . . . . . . . . . . . . . . . 35 3.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.5 Channel Specifications . . . . . . . . . . . . . . . . . . . . 37 3.6 Channel Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3.6.1 OPER OPER OPER OPERAAAATION TION TION TION Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3.6.2 AUXn AUXn AUXn AUXn FUNCTION FUNCTION FUNCTION FUNCTION Menu Items . . . . . . . . . . . . . . . . . . . . . 38 3.6.3 CALI CALI CALI CALIBBBBRATION T RATION T RATION T RATION TYYYYPE PE PE PE Menu Item . . . . . . . . . . . . . . . . . . . 39 3.6.4 CALI CALI CALI CALIBBBBRATION D RATION D RATION D RATION DAAAATA TA TA TA Sub-Menu . . . . . . . . . . . . . . . . . . . 40 3.6.5 CALI CALI CALI CALIBBBBRATE RATE RATE RATE Menu Item . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.6.6 DAC DAC DAC DAC SSSSETUP ETUP ETUP ETUP Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 41 3.6.7 DIAG DIAG DIAG DIAGNNNNOSTICS OSTICS OSTICS OSTICS Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . 42 3.7 Analog Output Configuration . . . . . . . . . . . . . . . 43 3.7.1 Identifying the Output Type . . . . . . . . . . . . . . . . . . . . . 43 3.7.2 Channel Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.7.3 Output Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.8.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.8.2 Common Problems and Solutions . . . . . . . . . . . . . . . . 44 3.9 Communication Commands . . . . . . . . . . . . . . . . 45 3.9.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 3.9.2 Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Chapter 4 Setup Menu Reference . . . . . . . . . . . . . . . . . . . . . . . 55 4.1 Navigation instructions . . . . . . . . . . . . . . . . . . . . 55 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Warranty/Repair Policy . . . . . . . . . . . . . . . . . . . . . . 61

INTRODUCTION 1 Chapter 1 Introduction 1.1 About This Manual 1.1.1 Scope This manual will explain the setup, features and operation of additional Input and Output channels that may be installed into Sensotec’s 3rd generation SC SEries instruments. This series includes the models SC1000, SC2000, SC2001 and SC3004. 1.1.2 Conventions This manual uses the following conventions to present information: 1.1.3 Organization Chapter 1, “Introduction”, offers general information about this instruction man- ual. Chapter 2, “RTD Input Channel”, explains how to wire, configure, operate and calibrate the RTD Input channel. Chapter 3, “Frequency Input Channel”, explains how to wire, configure, oper- ate and calibrate the Frequency Input channel. Chapter 4, “Setup Menu Reference”, is a list of all SETUP menus and a cross- reference to related information in this instruction manual. [TEXT IN BRACKETS] The label of a front panel button. DDDDIIIISSSSPPPPLLLLAAAAYYYY Text that appears on the display, such as error messages or menu items. -> Indicates that what follows is an item from a sub- menu, such as SSSSYYYYSSSSTTTTEEEEMMMM MEN MEN MEN MENUUUU -> DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS. DATA Serial communications commands sent to (or replies from) the instrument ↵ The carriage-return character, ASCII code decimal 13 Note Notes contain important information set off from the text. A stop sign highlights procedures or information necessary to avoid damage to equipment, dam- age to software, loss of data, loss of calibration, or invalid test results. The caution symbol alerts that a specific proce- dure or practice which, is not followed correctly, could cause serious personal injury.

1.2 Related Documents SC Series Instruction Manual The “SC Series Instruction Manual”, Sensotec p/n 008-0608-00, describes the wiring, setup and operation of the chassis and channels of SC Series Instruments. The chan- nels described in this document are: • Strain-Gage Input channel • AC/AC-LVDT Input channel • High-Level Input channel • Relay Output channel • DAC Output channel • Split-Display Virtual channel • Mathematics Virtual channel A printed copy of this document is available for order, or you may download it for free Sensotec’s web site, www.sensotec.com. Customer Information Sheet Every instrument is shipped with a Customer Information Sheet which documents the configuration of the instrument when it left the factory. Such information includes: • Sensotec part number, • date of manufacture, • list of all installed channels and their setup information, • customer specific SensoCode programming of Mathematics Virtual channels and operation notes. Communications Guide The “SC Series Communications Guide”, Sensotec p/n 008-0610-00, describes in detail how to communicate with an SC Series instrument using RS-232 and RS-485. Wiring diagrams, sample programs, and command descriptions are included. A printed copy of this document is available for order, or you may download it for free Sensotec’s web site, www.sensotec.com.

RTD INPUT CHANNEL 2 Chapter 2 RTD Input Channel 2.1 Features The RTD Input channel provides a DC excitation current to and accepts millivolt signals from a standard platinum, 100Ω Resistance Temperature Detector (RTD). These signals are digitized, converted into engineering units, and placed into the track, peak and valley data values of the channel. Setup and calibration of the channel is made at the factory for operation with a customer-supplied Pt-100 RTD with a DIN-43760 standard calibration curve. Re- calibration can be made manually through the SETUP mode with the known-load calibration method and a customer-supplied RTD calibrator. The engineering units used to display the temperature readings are field select- able from a built-in conversion table. In addition, the engineering units used for calibration can be independently selected. Two rear panel control inputs can be field-configured for such functions as remote track/hold, disabling peak/valley detection and clearing the peak/valley values. A voltage or current digital-to-analog output is also provided. 2.2 Getting Started Quickly As shipped from the factory, the RTD Input channel is calibrated for a standard Pt100 (platinum, 100Ω @ 100ºC) RTD that conforms to the DIN-43760 / IEC751 standards (∝=0.00385). No further calibration is required prior to use. Connect the RTD to the RTD Input channel according to “Wiring” on page 10.

2.3 Wiring 2.3.1 Channel Connector The pin-out for the channel’s connector is shown in the following table. The Analog Output and Analog Return pins are electrically isolated from all other pins on the instrument. Do not connect anything to the pins labeled as “N/C”. Damage to the instru- ment or loss of accuracy may result. 2.3.2 4-Wire RTD Connection Use a 4-wire RTD connection when the highest possible accuracy is desired. The excitation current from the instrument will be carried by two wires and the voltage drop across the RTD will be sensed with the other two wires. Since the (+)Signal and (- )Signal pins are high impedance inputs, there is little current flow through these wires therefore the resistance of the wires doesn’t add to the resistance of the RTD. Figure 2-1: “4-wire RTD Connection” to RTD Input Channel Table 2-1: RTD Input Channel Pin Connections Pin Label Function NOTES 1 (top) +EXC (+)Excitation referenced to pin 10 2 N/C N/C DO NOT CONNECT! 3 N/C N/C DO NOT CONNECT! 4 -EXC (-)Excitation referenced to pin 10 5 +SIG (+)Signal referenced to pin 10 6 -SIG (-)Signal referenced to pin 10 7 +OUT Analog Output referenced to pin 8 8 -OUT Analog Return - 9 N/C N/C DO NOT CONNECT! 10 DGND Digital Ground - 11 AUX1 Auxiliary Function 1 (connect to pin 10 to activate) referenced to pin 10 12 (bottom) AUX2 Auxiliary Function 2 (connect to pin 10 to activate) referenced to pin 10

RTD INPUT CHANNEL 2 2.3.3 3-Wire RTD Connection If the cost of 4-wire cable is an issue, it is possible to use a 3-wire RTD connec- tion that shares many of the benefits of the 4-wire connection. The wire lengths should be equal and the wire type should be identical. This will equalize wire resistance and thus obtain the best accuracy. Figure 2-2: “3-Wire RTD” Connection to RTD Input Channel 2.3.4 2-Wire RTD Connection The 2-wire connection scheme is not recommended unless the cable length is short. The wire’s resistance will add to the resistance of the RTD and result in reduced accuracy. Figure 2-3: “2-Wire RTD Connection” to RTD Input Channel

2.4 Calibration A listing of all menu items for this channel is given in “Setup Menu Reference” on page 55. A customer-supplied RTD simulator/calibrator is required for re-calibration. Although not recommended, field re-calibration of the channel for operation with RTDs with outputs other than the Pt100 DIN-43760 / IEC751 standards can be made; this may result in reduced accuracy and resolution. Step 1: Wire the RTD simulator/calibrator to the channel’s connector. See “Wiring” on page 10. Step 2: Enter the CCCCAAAALLLLIB IB IB IBRRRRAAAATTTTIIIIOOOONNNN DAT DAT DAT DATAAAA. See “CALIBRATION DATA Sub-Menu” on page17. If you wish to re-calibrate the instrument using a unit-of-measure other than degrees Celsius, you can use the CCCCAL AL AL ALIIIIBBBBRRRRAAAATTTTIIIIOOOON U N U N U N UNNNNIIIITTTTSSSS menu item to change the units-of-measure that the instrument uses for calibration. Step 3: Perform the calibration. See “CALIBRATE Menu Item” on page 17. Using the CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTEEEE menu item starts the calibration process. You will be prompted to use your RTD simulator/calibrator to apply simulated RTD signals to the channel as required.

RTD INPUT CHANNEL 2 2.5 Channel Specifications RTD INPUT Excitation Current 0.25mA Factory Calibration For use with Pt100 RTD that use DIN- 43760 / IEC751 standard (∝=0.00385) Absolute Accuracy of Factory Calibra- tion ±0.5ºC max. from -200ºC to +200ºC Resolution ±0.2ºC A/D Converter 24-bit Sigma-Delta Low-pass filter digital, 24-tap FIR Frequency Response 16 Hz Step Response 55 ms (typical) Maximum Input Resistance ~250Ω AUXILLIARY INPUTS Quantity 2 Type momentary contact closure Response Time < 5ms Field-Selectable Functions peak/valley clear, peak/valley hold, track hold ANALOG OUTPUT Output voltage range 5, ±5, 10 or ±10 VDC (field selectable) Output current range (optional current output channels) 4-20 mA Source any channel’s track, peak or valley value Isolation 500V Resolution 13 bits Frequency Response same as input when driven by the same channel’s tracking data

2.6 Channel Menu The RTD Input channel is configured and calibrated via its channel menu. Detailed instructions on operating the instrument in the SETUP Menu mode can be found in the “SC Series Instruction Manual”, Sensotec p/n 008-0608-00. 2.6.1 OP OP OP OPEEEERATION RATION RATION RATION Sub-Menu This menu controls the operation of this channel when the instrument is in the RUN mode. PPPPOOOOWWWWEEEERRRR----OOOONNNN SOURC SOURC SOURC SOURCEEEE Menu Item This menu selects which value is displayed by the channel when first entering the RUN mode. The choices are: • “TTTTRRRRAAAACCCCKKKK” means the live tracking value of the channel. • “PPPPEEEEAAAAKKKK” means the highest value of the channel. • “VVVVAAAALLLLLLLLEEEEYYYY” means the lowest value of the channel.

RTD INPUT CHANNEL 2 2.6.2 DISPLA DISPLA DISPLA DISPLAYYYY UNITS UNITS UNITS UNITS Menu Item This menu item controls how data values are scaled into engineering units, dis- played by the channel, and transmitted via serial communications. The RTD Input channel has conversion factors for degrees Celsius, degrees Fahrenheit and Kelvin. Note that if the CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOON U N U N U N UNNNNIIIITTTT is set to something other than “ddddeeeeggggCCCC”, then the choices available in the DDDDIIIISSSSPPPPLLLLAAAAY UNI Y UNI Y UNI Y UNITTTTSSSS and the associated conversion fac- tors will change accordingly. For example, if the CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOON U N U N U N UNNNNIIIITTTT is set to “ddddeeeeggggFFFF” then choices available for the DDDDIIIISSSSPPPPLA LA LA LAYYYY UNIT UNIT UNIT UNITSSSS will be “ddddeeeeggggFFFF to deg to deg to deg to degCCCC”,” ddddeeeeggggFFFF to deg to deg to deg to degFFFF” and “ddddeeeeggggFFFF tttto K o K o K o K”. The decimal point position is set to one decimal place with a resolution of 0.2 ºC, ºF or K; it cannot be changed manually. When the DDDDIIIISSSSPPPPLLLLAAAAYYYY UUUUNNNNIIIITTTTSSSS setting is changed, all LLLLIIIIMMMMIIIITTTT.... SSSSEEEETTTTPPPPOOOOIIIINNNNTTTTs, LLLLIIIIMMMMIT IT IT IT. R . R . R . REEEETTTTUUUURRRRNNNN PPPPNNNNTTTTs, tare values, DDDDAAAACCCC. Z . Z . Z . ZEEEERRRROOOO----SSSSCCCCAAAALLLLEEEE and DDDDAC AC AC AC.... FFFFUUUULLLLLLLL----SSSSCA CA CA CALLLLEEEE values in the entire instrument that refer to this channel will also be converted to the new DI DI DI DISSSSPPPPLLLLAAAAYYYY UNIT UNIT UNIT UNITSSSS setting. 2.6.3 AUXn F AUXn F AUXn F AUXn FUUUUNCTION NCTION NCTION NCTION Menu Items The AAAAUUUUXXXX1 FU 1 FU 1 FU 1 FUNNNNCCCCTTTTIIIIOOOONNNN and AAAAUUUUXXXX2222 FFFFUUUUNNNNCCCCTTTTIIIIOOOONNNN menu items determine what happens when the Auxiliary Function pins (labeled as “AUX1” and “AUX2”) on the channel’s connec- tor are activated. These pins are “activated” when they are connected to the Digi- tal Ground (labeled as “DGND”) pin. The choices are: • “DDDDIIIISSSSAAAABBBBLLLLEEEEDDDD” means that activating the pin does nothing. • “TTTTRRRRAAAACCCCKKKK HOL HOL HOL HOLDDDD” means that the tracking, peak and valley values will not be updated. • “HHHHIIIIGGGGHHHH////LLLLOOOOWWWW HOL HOL HOL HOLDDDD” means that the peak and valley values will not be updated. • “HHHHIIIIGGGGHHHH////LLLLOOOOWWWW CLEA CLEA CLEA CLEARRRR” means that the peak and valley values are reset. As the Auxiliary Function pins are not isolated, it is recommended that a push-but- ton switch or relay is used to connect these pins to the Digital Ground pin. Table 2-1: Temperature Conversion Unit of Measure DDDDIIIISSSSPPPPLLLLAAAAYYYY UNIT UNIT UNIT UNITSSSS Menu Item (when CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN UNI UNI UNI UNITTTT is set to degC) degrees Celsius ddddeeeeggggCCCC to d to d to d to deeeeggggCCCC degrees Fahrenheit ddddeeeeggggCCCC to d to d to d to deeeeggggFFFF Kelvin ddddeeeeggggCCCC to to to to KKKK

2.6.4 CALI CALI CALI CALIBBBBRATION RATION RATION RATION TYPE TYPE TYPE TYPE Menu Item The only choice is: • “TTTTYYYYPPPPEEEE==== 5 P 5 P 5 P 5 POOOOIIIINNNNT CA T CA T CA T CALLLL” means 5-Point Known Load Calibration. You are prompted to use your RTD simulator/calibrator to simulate the RTD output at the temperatures entered in the “KKKKNNNNOW OW OW OWN P N P N P N POOOOIIIINNNNTTTT 1111////5555”, “KKKKNNNNOOOOWWWWNNNN PPPPOOOOIIIINNNNT 2 T 2 T 2 T 2////5555”, “KKKKNNNNOOOOWWWWNNNN PPPPOOOOIIIINNNNTTTT 3333////5555”, “KKKKNNNNOOOOWWWWN P N P N P N POI OI OI OINNNNT 4 T 4 T 4 T 4////5555” and “KKKKNNNNOOOOWWWWNNNN POINT 5/ POINT 5/ POINT 5/ POINT 5/5555” registers. This technique is used to compensate for the non- linearity inherent in RTDs. The calibration points used for factory calibration are -200ºC, -100ºC, +0ºC, +100ºC and +200ºC. Using these temperatures for calibration is recommended for most appli- cations. If desired, accuracy may be improved by calibrating over a narrower temper- ature range which decreases the difference between the points. Choosing calibration points where the difference between points is larger than 100ºC will result in greatly reduced accuracy.

RTD INPUT CHANNEL 2 2.6.5 CALIBRATI CALIBRATI CALIBRATI CALIBRATIOOOON DATA N DATA N DATA N DATA Sub-Menu CCCCAL AL AL ALIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN UNI UNI UNI UNITTTT Menu Item This menu item controls what units of measure are used for the known-load cali- bration points. KKKKNNNNOOOOWWWWNNNN POINT x/ POINT x/ POINT x/ POINT x/yyyy Menu Items This enters the engineering unit values for the known-load calibration points. These points must match the actual temperatures that you will apply to the instru- ment during calibration. The following menu items are available: • “KKKKNNNNOOOOWWWWNNNN POINT 1/ POINT 1/ POINT 1/ POINT 1/5555”: point 1 of 5, usually -200ºC. • “KKKKNNNNOOOOWWWWNNNN POINT 2/ POINT 2/ POINT 2/ POINT 2/5555”: point 2 of 5, usually -100ºC. • “KKKKNNNNOOOOWWWWNNNN POINT 3/ POINT 3/ POINT 3/ POINT 3/5555”: point 3 of 5, usually 0 ºC. • “KKKKNNNNOOOOWWWWNNNN POINT 4/ POINT 4/ POINT 4/ POINT 4/5555”: point 4 of 5, usually +100ºC. • “KKKKNNNNOOOOWWWWNNNN POINT 5/ POINT 5/ POINT 5/ POINT 5/5555”: point 5 of 5, usually +200ºC. The instrument expects the input signal applied at each known-load point to be increasing. For example, the load applied at Known-Load Point 2/5 must cause the transducer to produce a more positive output than at Known-Load Point 1/5. 2.6.6 CALIBRAT CALIBRAT CALIBRAT CALIBRATEEEE Menu Item This menu item performs a calibration according to what was entered in the CCCCAAAALLLLIIII---- BBBBRRRRAAAATTTTIIIIOOOONNNN TYP TYP TYP TYPEEEE and CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN DAT DAT DAT DATAAAA menu items. Before performing a calibration, the CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOON D N D N D N DAAAATTTTAAAA must be entered (see “CALIBRATION DATA Sub-Menu” on page 17). For maximum accuracy, allow at least five minutes of warm-up before cal- ibration. The CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN TYP TYP TYP TYPEEEE is 5-Point Known Load Calibration. • The display will read DDDDOOOOIIIINNNNGGGG 5555PPPPOI OI OI OINNNNTTTT CCCCAAAALLLL, and prompt you to AAAAPPPPPPPPLLLLYYYY ----222200000000....00000000 deg deg deg degCCCC (or whatever the settings of KNOWN P KNOWN P KNOWN P KNOWN POOOOIIIINNNNT 1/ T 1/ T 1/ T 1/5555 and CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN UNI UNI UNI UNITTTT are). When you have applied this simulated temperature, press [ENTER]. • The display will read WWWWOOOORRRRKKKKIIIINNNNGGGG, then AAAAPPPPPPPPLLLLYYYY -100.00 d -100.00 d -100.00 d -100.00 deg eg eg egCCCC (or whatever the settings of KKKKNNNNOOOOWWWWNNNN POINT 2 POINT 2 POINT 2 POINT 2////5555 and CA CA CA CALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN UNI UNI UNI UNITTTT are). When you have applied this simu- Table 2-2: Temperature Conversion Unit of Measure CCCCAAAALLLLIB IB IB IBRRRRAAAATTTTIIIIOOOONNNN UNI UNI UNI UNITTTT Menu Item degrees Celsius ddddeeeeggggCCCC degrees Fahrenheit ddddeeeeggggFFFF Kelvin KKKK

lated temperature, press [ENTER]. • The display will read WWWWOOOORRRRKKKKIIIINNNNGGGG, then AAAAPPPPPPPPLLLLYYYY 000.00 d 000.00 d 000.00 d 000.00 deeeeggggCCCC (or whatever the settings of KKKKNNNNOOOOWWWWNNNN POINT 3 POINT 3 POINT 3 POINT 3/5 /5 /5 /5 and CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN UNI UNI UNI UNITTTT are). When you have applied this simulated temperature, press [ENTER]. • The display will read WWWWOOOORRRRKKKKIIIINNNNGGGG, then AAAAPPPPPPPPLLLLYYYY 100.00 d 100.00 d 100.00 d 100.00 deg eg eg egCCCC (or whatever the settings of KKKKNNNNOOOOWWWWNNNN POINT 4 POINT 4 POINT 4 POINT 4/5 /5 /5 /5 and CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN UNI UNI UNI UNITTTT are). When you have applied this simulated temperature, press [ENTER]. • The display will read WWWWOOOORRRRKKKKIIIINNNNGGGG, then AAAAPPPPPPPPLLLLYYYY 200.000 d 200.000 d 200.000 d 200.000 deeeeggggCCCC (or whatever the settings of KKKKNNNNOOOOWWWWNNNN POINT 5 POINT 5 POINT 5 POINT 5/5 /5 /5 /5 and CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN UNI UNI UNI UNITTTT are). When you have applied this simulated temperature, press [ENTER]. • The display will indicate DDDDOOOONNNNEEEE and the instrument will return to the RUN mode.

RTD INPUT CHANNEL 2 2.6.7 DA DA DA DACCCC SETUP SETUP SETUP SETUP Sub-Menu This sub-menu contains four items that control the Digital-to-Analog Converter (DAC) output of the channel. DDDDAAAACCCC.... CHANNE CHANNE CHANNE CHANNELLLL Menu Item This chooses which channel will drive the DAC output. Normally, the DAC located on a particular channel will be driven by that channel, but that need not be the case. For example, if a Mathematics Virtual channel is installed on the instru- ment, the output of this Virtual channel could be used to drive this channel’s DAC output. If the DAC is set-up to be driven by its own channel’s tracking value, the Analog Output will have the frequency response specified by “Channel Specifications” on page 13. Otherwise, the Analog Output will operate more slowly. DDDDAAAACCCC.... SOURC SOURC SOURC SOURCEEEE Menu Item This designates the data source of the channel monitored by the analog output. Each channel has three data sources: the live tracking value (TRACK), its highest value (PEAK), and its lowest value (VALLEY). The options for this menu item are: • “TTTTRRRRAAAACCCCKKKK” means the live tracking value of the channel. • “PPPPEEEEAAAAKKKK” means the highest value of the channel since the peak/valley detector was last cleared. • “VVVVAAAALLLLLLLLEEEEYYYY” means the lowest value of the channel since the peak/valley detector was last cleared. If the DAC is set-up to be driven by its own channel’s tracking value, the Analog Output will have the frequency response specified by “Channel Specifications” on page 13. Otherwise, the Analog Output will operate more slowly. DA DA DA DACCCC.... ZERO-SCAL ZERO-SCAL ZERO-SCAL ZERO-SCALEEEE Menu Item This specifies what value, in engineering units, corresponds to zero output on the Analog Output. “Zero output” might be 0 Volts, 2.5 Volts, 5 Volts, 4 mA or 12 mA depending on if the channel has a voltage or current output and how it is configured. See the “Digital-to-Analog Output” section of this chapter for details. DA DA DA DACCCC.... FULL-SCAL FULL-SCAL FULL-SCAL FULL-SCALEEEE Menu Item Specifies what value, in engineering units, corresponds to full output on the Ana- log Output. “Full output” might be 5 Volts, 10 Volts or 20 mA depending on if the channel has a voltage or current output and how it is configured. See the “Digital-to-Analog Output” section of this chapter for details.

2.6.8 DIAG DIAG DIAG DIAGNNNNOSTICS OSTICS OSTICS OSTICS Sub-Menu DDDDAAAACCCC FFFFUUUULLLLL S L S L S L SCCCCAAAALLLLEEEE Menu Item When this menu item is selected, the Analog Output of the channel is forced to its full- scale output, then DDDDAAAACCCC UUUUPPPPDDDDAAAATTTTEEEEDDDD is displayed. This is useful when calibrating or trimming the readout connected to the Analog Output. DDDDAAAACCCC ZZZZEEEERRRRO S O S O S O SCCCCAAAALLLLEEEE Menu Item When this menu item is selected, the Analog Output of the channel is forced to its zero-scale output, then DDDDAAAAC UP C UP C UP C UPDDDDAAAATTTTEEEEDDDD is displayed. This is useful when calibrating or trim- ming the readout connected to the Analog Output. VVVVEEEERRRRSSSSIIIIOOOONNNN INF INF INF INFOOOO Menu Item This menu item displays the part number and revision level of the firmware used by this channels microprocessor. DDDDIIIISSSSPPPPLLLLAAAAYYYY AD AD AD ADCCCC Menu Item The options for this menu item are: • “OOOOFFFFFFFF” will allow the [VALUE] button to cycle through “TTTTKKKK” (tracking value), “HHHHIIII” (peak value) and “LLLLOOOO” (valley value). This is the recommended option. • “OOOONNNN” will allow the “AAAADDDD” (percentage of the Analog-to-Digital converter’s full-scale digitizing capability) display source to be available along with “TTTTKKKK” (tracking value), “HHHHIIII” (peak value) and “LLLLOOOO” (valley value) when the [VALUE] button is pressed on the front panel. The Analog-to-Digital converter counts are displayed as a percentage from -100.00% to 100.00%. This can be used to verify the correct operation of the input circuitry of the channel. LLLLIIIINNNNEEEEAAAARRRRIIIIZZZZAAAATTTTIIIION ON ON ON Menu Item The options for this menu item are: • “OOOONNNN” will allow the linearization data obtained from the 5-Point Known Load Cali- bration to affect a channel’s scaled values. This is the recommended option. • “OOOOFFFFFFFF” will not allow linearization data to effect the channel’s scaled values. This is useful when diagnosing problems in a calibration procedure. DDDDIIIISSSSAAAABBBBLLLLEEEE CCCCHHHHAAAANNNNNNNNEEEELLLL Menu Item The options for this menu item are: • “OOOONNNN” will bypass the INITIALIZE and RUN modes of the channel. The track, peak and valley values of the channel are forced to 0. This option is helpful when a channel is installed but not being used. • “OOOOFFFFFFFF” will allow normal operation of the channel.

RTD INPUT CHANNEL 2 2.7 Analog Output Configuration 2.7.1 Identifying the Output Type A RTD Input channel is available with one of two types of digital-to-analog (DAC) outputs: voltage or current. You can determine which type of output a channel has by one of three ways: • Consulting the instrument’s Customer Information Sheet • Examining the SSSSYYYYSSSSTTTTEEEEMMMM MEN MEN MEN MENUUUU -> CCCCOOOONNNNFFFFIIIIGGGGUUUURRRRAAAATTTTIIIIOOOONNNN -> CCCCHHHHAAAANNNNNNNNEEEELLLL nn TTTTYYYYPPPPEEEE menu item where nn is the number of the channel. If the channel’s type is RRRRTTTTDDDD VVVVoooouuuutttt, it has a volt- age output. If the channel’s type is RRRRTTTTDDDD Io Io Io Iout ut ut ut, it has a current output. • Examining the channel’s circuit board as shown in the figure below. 2.7.2 Channel Menu Items The Analog Output can be driven by any channel’s track, peak or valley value. See the “Channel Menu” section earlier in this chapter for a complete listing of SETUP menu items available on the DDDDAAAACCCC.... SETU SETU SETU SETUPPPP sub-menu. 2.7.3 Output Selection Jumpers located on the channel’s circuit board determine what outputs are gener- ated when the value selected to drive the Analog Output (from the DDDDAAAACCCC. CH . CH . CH . CHAAAANNNNNNNNEEEELLLL and DDDDAAAACCCC.... SOURC SOURC SOURC SOURCEEEE menu items) equals the DA DA DA DACCCC.... FULL S FULL S FULL S FULL SCCCCAL AL AL ALEEEE and DDDDAAAACCCC.... ZERO S ZERO S ZERO S ZERO SCCCCAAAALLLLEEEE settings. Figure 2-4: Digital-to-Analog Output Jumper Locations DDDDAAAACCCC.... ZZZZEEEERRRROOOO SCAL SCAL SCAL SCALEEEE Output DDDDAAAACCCC.... FFFFUUUULLLLLLLL SCAL SCAL SCAL SCALEEEE Output J30 jumper J31 jumper CHANNELS WITH VOLTAGE OUPUT 0-5V 2.5 Volts 5 Volts open closed ±5V 0 Volts 5 Volts open open 0-10V 5 Volts 10 Volts closed closed ±10V 0 Volts 10 Volts closed open CHANNELS WITH CURRENT OUTPUT 4-20mA 4 mA 20 mA open open 4-20mA 12 mA 20 mA open closed

2.8 Troubleshooting 2.8.1 Error Messages See the “Error Messages” chapter of the “SC Series Instruction Manual”, Sensotec p/ n 008-0608-00, for information relating to error messages. 2.8.2 Common Problems and Solutions Erratic Display Make sure that the temperature on the RTD is constant. A RTD simulator/calibrator may be used. The RTD Input channel is calibrated at the factory for Pt100 RTD’s with the DIN stan- dard output curve. See “Channel Specifications” on pag e13. It is recommended that the RTD Input channel be calibrated at -200ºC, -100ºC, 0ºC, +100ºC and +200ºC for rated accuracy. +OVLD or -OVLD on Display Check “Wiring” on page 10 and make certain that nothing is connected to the pins labeled as “N/C”. The RTD Input channel is calibrated at the factory for Pt100 RTD’s with the DIN stan- dard output curve. See “Channel Specifications” on pag e13. Analog Output Incorrect Make certain of the type of Analog Output (voltage or current) that the channel is equipped with; see “Identifying the Output Type” on page21. Use the DDDDIIIIAAAAGGGGNO NO NO NOSSSSTTTTIIIICCCCSSSS -> DDDDAC AC AC AC FFFFUL UL UL ULLLLL SC SC SC SCAAAALLLLEEEE and DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS -> DDDDAAAAC Z C Z C Z C ZEEEERRRRO S O S O S O SCCCCAAAALLLLEEEE menu items to force the Analog Output to a known output. Then, adjust your readout device, panel meter, PLC or data acquisition system to match. Check the output selection jumpers; see “Output Selection” on page 21. Auxiliary Function Pins Not Operating Make sure that the AAAAUX UX UX UX1111 FFFFUUUUNNNNCCCCTTTTIIIIOOOONNNN or AAAAUUUUXXXX2 F 2 F 2 F 2 FUUUUNNNNCCCCTTTTIIIIOOOONNNN SETUP menu items are set correctly; if they are set to DDDDIIIISSSSAAAABBBBLLLLEEEEDDDD then they will not operate. The Auxiliary Function (“AUX1” and “AUX2”) pins must be connected to pin 10, not pin 8, to activate them.

RTD INPUT CHANNEL 2 2.9 Communication Commands 2.9.1 Introduction This section only documents the communication commands that affect the operation of the RTD Input channel. Refer to document p/n 008-0610-00, “SC Series Communi- cations Guide” for details regarding serial communications. This document can be downloaded from Sensotec’s web site, www.sensotec.com. 2.9.2 Descriptions F0 Transmit Track Data Purpose To transmit the channel’s tracking data value Usage "#aaccF0↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001F0↵" Reply " 0037.5” (typical) Remarks The input channel continuously reads the RTD. This function transmits the most recent reading. F9 Transmit Peak Data Purpose To transmit the channel’s peak data value Usage "#aaccF9↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001F9↵" Reply " 0162.5” (typical) or "N/A”

FA Transmit Valley Data Purpose To transmit the channel’s valley data value Usage "#aaccFA↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001FA↵" Reply "-0012.5” (typical) or "N/A” FB Clear Peak and Valley Data Purpose To reset the channel’s peak and valley data values to the track value. Usage "#aaccFB↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001FB↵" Reply "OK” or "N/A” Remarks This command is not available on the Model SC1000. FF Transmit Analog-to-Digital Converter Reading Purpose To transmit the Analog-to-Digital converter reading as a per- centage from -100% to +100% of the A/D converters’s full scale. Usage "#aaccFF↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001FF↵" Reply " 50.000” (typical) Remarks none

RTD INPUT CHANNEL 2 FH Write DAC Control Value Purpose To control the channel’s Digital-to-Analog Converter (DAC) manually or automatically. Usage "#aaccFHn↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number n is the argument defined below. ↵ is the ‘carriage return’ character (ASCII decimal 13). Argument "AUTO” returns the DAC to its normal automatic operation (power-on default). That is, it is controlled by the "DDDDAAAACCCC.... CCCCHHHHAAAANNNNNNNNEEEELLLL”, "DDDDAAAACCCC. SO . SO . SO . SOUUUURRRRCCCCEEEE”, "DDDDAAAACCCC. Z . Z . Z . ZEEEERRRROOOO----SSSSCCCCAAAALLLLEEEE” and "DDDDAAAACCCC. F . F . F . FUUUULLLLLLLL----SSSSCCCCAAAALLLLEEEE” menu items. If the argument is a numeric value between -1 and +1, the DAC is forced to manual control and the value is used to drive the DAC from -100% to +100% of its output. Example "#0001FH.5↵" will force channel 01’s DAC to +50% of full- scale. Reply "OK” or "ERROR” Remarks You might wish to force a channel’s DAC to a certain output to help calibrate the attached data acquisition system or other device. R6 Read Display Units Purpose Reads the channel’s "DDDDIS IS IS ISPPPPLLLLAAAAYYYY UNIT UNIT UNIT UNITSSSS” menu item Usage "#aaccR6↵" to read. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001R6↵” Reply When reading: a four-character string.

RK/WK Read/Write Known-Load Calibration Point Purpose Reads or writes the channel’s "KKKKNNNNOOOOWWWWNNNN POINT x POINT x POINT x POINT x////yyyy” menu items Usage "#aaccRKpp↵" to read, "#aaccWKppn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number pp is the parameter defined below. n is the known-load calibration point in engineering units. ↵ is the ‘carriage return’ character (ASCII decimal 13). Parameter "00” accesses the "KKKKNNNNOOOOWWWWNNNN POINT 1 POINT 1 POINT 1 POINT 1////5555” menu item. "01” accesses the "KKKKNNNNOOOOWWWWNNNN POINT 2 POINT 2 POINT 2 POINT 2////5555” menu item. "02” accesses the "KKKKNNNNOOOOWWWWNNNN POINT 3 POINT 3 POINT 3 POINT 3////5555” menu item. "03” accesses the "KKKKNNNNOOOOWWWWNNNN POINT 4 POINT 4 POINT 4 POINT 4////5555” menu item. "04” accesses the "KKKKNNNNOOOOWWWWNNNN POINT 5 POINT 5 POINT 5 POINT 5////5555” menu item. Example "#0001RK01↵” Reply When writing: "OK" or "ERROR”. When reading: an ASCII-floating-point value. Changing this value has no effect until the channel is re-cali- brated to the RTD with the Known-Load Calibration method.

RTD INPUT CHANNEL 2 RM/WM Read/Write DAC Channel & Value Purpose Reads or writes the channel’s "DDDDAAAACCCC.... CHANNE CHANNE CHANNE CHANNELLLL” and "DDDDAC AC AC AC.... SOURC SOURC SOURC SOURCEEEE” menu items Usage "#aaccRM↵" to read, "#aaccWMn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number. n is the argument defined below. ↵ is the ‘carriage return’ character (ASCII decimal 13). Argument A number which selects a channel’s value. This number is created by adding together the values of the desired options as shown. Channel Value Source Value 01 1. TRACK 0. 02 2. PEAK 16. 03 3. VALLEY 32. 04 4. 05 5. 06 6. 07 7. 08 8. 09 9. 10 10. 11 11. 12 12. 13 13. 14 14. 15 15. 16 64. 17 65. 18 66. 19 67. 20 68. 21 69. 22 70. 23 71. Example "#0001RM33↵" will cause the channel 01’s DAC to monitor channel 01’s valley value. Reply When writing: "OK", "ERROR” or "N/A”. When reading: a number corresponding to a channel number and data value as shown above. Remarks none

RN/WN Read/Write DAC Zero-Scale Value Purpose Reads or writes the channel’s "DDDDAAAACCCC.... ZERO-SCAL ZERO-SCAL ZERO-SCAL ZERO-SCALEEEE” menu item Usage "#aaccRN↵" to read, "#aaccWNn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number n is the zero Analog Output value in engineering units. ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001WN-8000↵” Reply When writing: "OK" or "ERROR”. When reading: an ASCII-floating-point value. RO/WO Read/Write DAC Full-Scale Value Purpose Reads or writes the channel’s "DDDDAAAACCCC.... FULL-SCAL FULL-SCAL FULL-SCAL FULL-SCALEEEE” menu item Usage "#aaccRO↵" to read, "#aaccWOn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number n is the full Analog Output value in engineering units. ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001WO8000↵” Reply When writing: "OK" or "ERROR”. When reading: an ASCII-floating-point value.

RTD INPUT CHANNEL 2 RP/WP Read/Write Operation Purpose Read or write the operation settings of the channel Usage "#aaccRPpp↵" to read, "#aaccWPppn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number. pp is one of the two-character parameters given below. n is the argument. ↵ is the ‘carriage return’ character (ASCII decimal 13). Parameters & Arguments Using pp="00” accesses the "AAAAUUUUTTTTOOOO----ZZZZEEEERRRROOOO” and "LLLLIIIINNNNEEEEAAAARRRRIIIIZZZZAAAATTTTIIIIOOOONNNN” menu items. When writing this parameter, the argument n is a number which selects different operating features. This number is created by adding together the values of the desired options as shown. Linearization Value OFF 0. ON 16. Using pp="01” accesses the "CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN TYP TYP TYP TYPEEEE” menu item. When reading this parameter: n=5 means 5-Point Known-Load Calibration. Using pp="02” accesses the "AAAAUUUUXXXX1111 FUNCTIO FUNCTIO FUNCTIO FUNCTIONNNN” menu item. Using pp="03” accesses the "AAAAUUUUXXXX2222 FUNCTIO FUNCTIO FUNCTIO FUNCTIONNNN” menu item. When writing these parameters: n=0 means the Auxiliary Function pin is disabled. n=1 means track hold. n=2 means peak & valley hold. n=4 means peak & valley clear (edge triggered). Using pp="04” accesses the "CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOON U N U N U N UNNNNIIIITTTT” menu item. This parameter can be read from, not written to. Example Sending "#0001WP0216↵" will allow the assertion of channel 01’s Auxiliary 1 Function pin to activate the Tare function. The instrument will reply with "OK". Reply When writing: "OK" or "ERROR” When reading: a numeric value or text string according to the information above.

RR Read Version Info Purpose Read version information found on the "VVVVEEEERRRRSSSSIIIIOOOONNNN INF INF INF INFOOOO” menu item. Usage "#aaccRR↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001RR↵" Reply A text string such as 084-1169-01 04 Remarks This is the part number and version of the firmware used by the channel’s microprocessor. RT/WT Read/Write Front Panel Switch Operation Purpose Reads or writes the operation of the front panel switches when the Protection jumper is installed. Usage "#aaccRT↵" to read, "#aaccWTn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number. n is the argument defined below. ↵ is the ‘carriage return’ character (ASCII decimal 13). Argument The argument is created by adding together the values of the desired options as shown. [VALUE] Value [CLEAR] Value ENABLED 0. ENABLED 0. DISABLED 8. DISABLED 4. [CHANNEL] Value [TARE] Value ENABLED 0. ENABLED 0. DISABLED 2. DISABLED 1. Example It is desired to disable the [TARE] button for channel 02 when the Protection jumper is installed. Sending "#0002WT1↵" will accomplish this. Reply When writing: "OK" or "ERROR”. When reading: an ASCII-floating-point value described above. Remarks If a disabled front panel button is pressed, the message " PPPPRRRROOOO---- TTTTEEEECCCCTTTTEEEEDDDD” will appear on the display.

FREQUENCY INPUT CHANNEL 3 Chapter 3 Frequency Input Channel 3.1 Features The Frequency Input channel accepts square wave or sine wave input signals from such transducers as magnetic pickups, devices with TTL outputs, or devices with PNP or NPN transistor outputs. These signals are AC coupled into a zero- crossing detector, digitized, converted into engineering units, and placed into the track, peak and valley data values of the channel. A 5V excitation is available in case it is required by the device. Setup and calibration of the channel is made at the factory. Re-calibration can be made manually through the SETUP mode with the known-load calibration method and a customer-supplied frequency calibrator. The engineering units used to display the frequency are Hz. A Mathematics Vir- tual channel can be factory programmed for specific applications that required conversion into units of RPM or horsepower. Two rear panel control inputs can be field-configured for such functions as remote track/hold, disabling peak/valley detection and clearing the peak/valley values. A voltage or current digital-to-analog output is also provided. 3.2 Getting Started Quickly As shipped from the factory, the Frequency Input channel is calibrated and ready for use. Connect the output of your transdcuer to the Frequency Input channel according to “Wiring” on pag e34.

3.3 Wiring 3.3.1 Channel Connector The pin-out for the channel’s connector is shown in the following table. The Analog Output and Analog Return pins are electrically isolated from all other pins on the instrument. Do not connect anything to the pins labeled as “N/C”. Damage to the instru- ment or loss of accuracy may result. 3.3.2 NPN Open- Collector Connection . Figure 3-1: NPN Open-Collector Connection to Frequency Input Channel Table 3-1: Frequency Input Channel Pin Connections Pin Label Function NOTES 1 (top) +EXC (+)Excitation referenced to pin 10 2 N/C N/C DO NOT CONNECT! 3 N/C N/C DO NOT CONNECT! 4 -EXC (-)Excitation referenced to pin 10 5 +SIG (+)Signal referenced to pin 10 6 -SIG (-)Signal referenced to pin 10 7 +OUT Analog Output referenced to pin 8 8 -OUT Analog Return - 9 N/C N/C DO NOT CONNECT! 10 DGND Digital Ground - 11 AUX1 Auxiliary Function 1 (connect to pin 10 to activate) referenced to pin 10 12 (bottom) AUX2 Auxiliary Function 2 (connect to pin 10 to activate) referenced to pin 10

FREQUENCY INPUT CHANNEL 3 3.3.3 PNP Open- Collector Figure 3-2: PNP Open-Collector Connection to Frequency Input Channel 3.3.4 TTL/CMOS Logic Connection Figure 3-3: TTL or CMOS Logic Connection to Frequency Input Channel 3.3.5 Magnetic Pickup Connection Figure 3-4: Magnetic Pickup Connection to Frequency Input Channel

3.4 Calibration A listing of all menu items for this channel is given in “Setup Menu Reference” on page 55. A customer-supplied signal generator is required for re-calibration. It should be set up to produce a square wave output at 1V peak-to-peak amplitude. Step 1: Wire the signal generator to the channel’s connector. See “Wiring” on page 34. Step 2: Enter the CCCCAAAALLLLIB IB IB IBRRRRAAAATTTTIIIIOOOONNNN DAT DAT DAT DATAAAA. See “CALIBRATION DATA Sub-Menu” on page40. Step 3: Perform the calibration. See “CALIBRATE Menu Item” on page 40. Using the CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTEEEE menu item starts the calibration process. You will be prompted to use your signal generator to apply signals at various frequencies to the channel as required.

FREQUENCY INPUT CHANNEL 3 3.5 Channel Specifications FREQUENCY INPUT Frequency Range 15 Hz to 40kHz (square wave) 200Hz to 40kHz (sine wave) Threshold Zero Crossing (AC coupled) Level 0.2Vpp to 30Vpp Minimum Pulse Width 20us Non-linearity 0.05% ful-scale Temperature Effect 150 ppm/ºC Frequency Response 2 Hz Step Response 40 ms (typical) EXCITATION OUTPUT Output 5V @ 100mA max. AUXILLIARY INPUTS Quantity 2 Type momentary contact closure Response Time < 5ms Field-Selectable Functions peak/valley clear, peak/valley hold, track hold ANALOG OUTPUT Output voltage range 5, ±5, 10 or ±10 VDC (field selectable) Output current range (optional current output channels) 4-20 mA Source any channel’s track, peak or valley value Isolation 500V Resolution 13 bits Frequency Response same as input when driven by the same channel’s tracking data

3.6 Channel Menu The Frequency Input channel is configured and calibrated via its channel menu. Detailed instructions on operating the instrument in the SETUP Menu mode can be found in the “SC Series Instruction Manual”, Sensotec p/n 008-0608-00. 3.6.1 OP OP OP OPEEEERATION RATION RATION RATION Sub-Menu This menu controls the operation of this channel when the instrument is in the RUN mode. PPPPOOOOWWWWEEEERRRR----OOOONNNN SOURC SOURC SOURC SOURCEEEE Menu Item This menu selects which value is displayed by the channel when first entering the RUN mode. The choices are: • “TTTTRRRRAAAACCCCKKKK” means the live tracking value of the channel. • “PPPPEEEEAAAAKKKK” means the highest value of the channel. • “VVVVAAAALLLLLLLLEEEEYYYY” means the lowest value of the channel. 3.6.2 AUXn F AUXn F AUXn F AUXn FUUUUNCTION NCTION NCTION NCTION Menu Items The AAAAUUUUXXXX1 F 1 F 1 F 1 FUN UN UN UNCCCCTTTTIIIIOOOONNNN and AAAAUUUUXXXX2 F 2 F 2 F 2 FUUUUNNNNCCCCTTTTIIIIOOOONNNN menu items determine what happens when the Auxiliary Function pins (labeled as “AUX1” and “AUX2”) on the channel’s connector are activated. These pins are “activated” when they are connected to the Digital Ground (labeled as “DGND”) pin. The choices are: • “DDDDIIIISSSSAAAABBBBLLLLEEEEDDDD” means that activating the pin does nothing. • “TTTTRRRRAAAACCCCKKKK HOL HOL HOL HOLDDDD” means that the tracking, peak and valley values will not be updated. • “HHHHIIIIGGGGHHHH////LLLLOOOOWWWW HOL HOL HOL HOLDDDD” means that the peak and valley values will not be updated. • “HHHHIIIIGGGGHHHH////LLLLOOOOWWWW CLEA CLEA CLEA CLEARRRR” means that the peak and valley values are reset. As the Auxiliary Function pins are not isolated, it is recommended that a push-button switch or relay is used to connect these pins to the Digital Ground pin.

FREQUENCY INPUT CHANNEL 3 3.6.3 CCCCALIBRATI ALIBRATI ALIBRATI ALIBRATIOOOON TYPE N TYPE N TYPE N TYPE Menu Item The only choice is: • “TTTTYYYYPPPPEEEE= 5 = 5 = 5 = 5 PPPPOOOOIIIINNNNT C T C T C T CAAAALLLL” means 5-Point Known Load Calibration. You are prompted to use your singal generator to apply the frequencies that were entered in the “KKKKNNNNOOOOWWWWN PO N PO N PO N POIIIINNNNTTTT 1111////5555”, “KKKKNNNNOOOOWWWWN P N P N P N POOOOIIIINNNNTTTT 2222////5555”, “KKKKNNNNOOOOWWWWNNNN PPPPOOOOIIIINNNNT 3/ T 3/ T 3/ T 3/5555”, “KKKKNNNNOOOOWN WN WN WN PPPPOOOOIIIINNNNT 4/ T 4/ T 4/ T 4/5555” and “KKKKNNNNOOOOWWWWNNNN PPPPOOOOIIIINNNNTTTT 5/ 5/ 5/ 5/5555” registers. This technique is used to compensate for the non-linear- ity inherent in the channel’s frequency-to-voltage converter. The calibration points used for factory calibration are 0 Hz, 35kHz, 45kHz, 47.5kHz and 50kHz. Choosing calibration points other than these will result in greatly reduced accuracy.

3.6.4 CALI CALI CALI CALIBBBBRATION RATION RATION RATION DA DA DA DATTTTAAAA Sub-Menu KKKKNNNNOOOOWWWWNNNN POINT x/ POINT x/ POINT x/ POINT x/yyyy Menu Items This enters the engineering unit values for the known-load calibration points. These points must match the actual frequencies that you will apply to the instrument during calibration. The following menu items are available: • “KKKKNNNNOOOOWWWWNNNN POINT 1/ POINT 1/ POINT 1/ POINT 1/5555”: point 1 of 5, must be 0Hz. • “KKKKNNNNOOOOWWWWNNNN POINT 2/ POINT 2/ POINT 2/ POINT 2/5555”: point 2 of 5, must be 35kHz. • “KKKKNNNNOOOOWWWWNNNN POINT 3/ POINT 3/ POINT 3/ POINT 3/5555”: point 3 of 5, must be 45kHz. • “KKKKNNNNOOOOWWWWNNNN POINT 4/ POINT 4/ POINT 4/ POINT 4/5555”: point 4 of 5, must be 47.5kHz. • “KKKKNNNNOOOOWWWWNNNN POINT 5/ POINT 5/ POINT 5/ POINT 5/5555”: point 5 of 5, must be 50kHz. The instrument expects the frequency applied at each known-load point to be increasing. For example, the frequency applied at Known-Load Point 2/5 must be greater than the frequency applied at Known-Load Point 1/5. 3.6.5 CA CA CA CALLLLIBRATE IBRATE IBRATE IBRATE Menu Item This menu item performs a calibration according to what was entered in the CCCCAAAALLLLIIIIBBBBRRRRAAAA---- TTTTIIIIOOOONNNN TYP TYP TYP TYPEEEE and CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN DAT DAT DAT DATAAAA menu items. Before performing a calibration, the CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN DAT DAT DAT DATAAAA must be entered (see “CALIBRATION DATA Sub-Menu” on page40). For maximum accuracy, allow at least five minutes of warm-up before calibra- tion. The CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN TYP TYP TYP TYPEEEE is 5-Point Known Load Calibration. • The display will read DDDDOOOOIIIINNNNGGGG 5POINT C 5POINT C 5POINT C 5POINT CAAAALLLL, and prompt you to AAAAPPPPPPPPLLLLYYYY 00000. H 00000. H 00000. H 00000. Hzzzz . When you have applied this frequency, press [ENTER]. • The display will read WWWWOOOORRRRKKKKIIIINNNNGGGG, then AAAAPPPPPPPPLLLLYYYY 37500. H 37500. H 37500. H 37500. Hzzzz. When you have applied this fre- quency, press [ENTER]. • The display will read WWWWOOOORRRRKKKKIIIINNNNGGGG, then AAAAPPPPPPPPLLLLYYYY 45000. H 45000. H 45000. H 45000. Hzzzz. When you have applied this fre- quency, press [ENTER]. • The display will read WWWWOOOORRRRKKKKIIIINNNNGGGG, then AAAAPPPPPPPPLLLLYYYY 44447777555500000000.... HHHHzzzz. When you have applied this fre- quency, press [ENTER]. • The display will read WWWWOOOORRRRKKKKIIIINNNNGGGG, then AAAAPPPPPPPPLLLLYYYY 55550000000000000000.... HHHHzzzz. When you have applied this fre- quency, press [ENTER]. • The display will indicate DDDDOOOONNNNEEEE and the instrument will return to the RUN mode.

FREQUENCY INPUT CHANNEL 3 3.6.6 DA DA DA DACCCC SETUP SETUP SETUP SETUP Sub-Menu This sub-menu contains four items that control the Digital-to-Analog Converter (DAC) output of the channel. DDDDAAAACCCC.... CHANNE CHANNE CHANNE CHANNELLLL Menu Item This chooses which channel will drive the DAC output. Normally, the DAC located on a particular channel will be driven by that channel, but that need not be the case. For example, if a Mathematics Virtual channel is installed on the instru- ment, the output of this Virtual channel could be used to drive this channel’s DAC output. If the DAC is set-up to be driven by its own channel’s tracking value, the Analog Output will have the frequency response specified by “Channel Specifications” on page 37. Otherwise, the Analog Output will operate more slowly. DDDDAAAACCCC.... SOURC SOURC SOURC SOURCEEEE Menu Item This designates the data source of the channel monitored by the analog output. Each channel has three data sources: the live tracking value (TRACK), its highest value (PEAK), and its lowest value (VALLEY). The options for this menu item are: • “TTTTRRRRAAAACCCCKKKK” means the live tracking value of the channel. • “PPPPEEEEAAAAKKKK” means the highest value of the channel since the peak/valley detector was last cleared. • “VVVVAAAALLLLLLLLEEEEYYYY” means the lowest value of the channel since the peak/valley detector was last cleared. If the DAC is set-up to be driven by its own channel’s tracking value, the Analog Output will have the frequency response specified by “Channel Specifications” on page 37. Otherwise, the Analog Output will operate more slowly. DA DA DA DACCCC.... ZERO-SCAL ZERO-SCAL ZERO-SCAL ZERO-SCALEEEE Menu Item This specifies what value, in engineering units, corresponds to zero output on the Analog Output. “Zero output” might be 0 Volts, 2.5 Volts, 5 Volts, 4 mA or 12 mA depending on if the channel has a voltage or current output and how it is configured. See the “Digital-to-Analog Output” section of this chapter for details. DA DA DA DACCCC.... FULL-SCAL FULL-SCAL FULL-SCAL FULL-SCALEEEE Menu Item Specifies what value, in engineering units, corresponds to full output on the Ana- log Output. “Full output” might be 5 Volts, 10 Volts or 20 mA depending on if the channel has a voltage or current output and how it is configured. See the “Digital-to-Analog Output” section of this chapter for details.

3.6.7 DIAG DIAG DIAG DIAGNNNNOSTICS OSTICS OSTICS OSTICS Sub-Menu DDDDAAAACCCC FFFFUUUULLLLL S L S L S L SCCCCAAAALLLLEEEE Menu Item When this menu item is selected, the Analog Output of the channel is forced to its full- scale output, then DDDDAAAACCCC UUUUPPPPDDDDAAAATTTTEEEEDDDD is displayed. This is useful when calibrating or trimming the readout connected to the Analog Output. DDDDAAAACCCC ZZZZEEEERRRRO S O S O S O SCCCCAAAALLLLEEEE Menu Item When this menu item is selected, the Analog Output of the channel is forced to its zero-scale output, then DDDDAAAAC UP C UP C UP C UPDDDDAAAATTTTEEEEDDDD is displayed. This is useful when calibrating or trim- ming the readout connected to the Analog Output. VVVVEEEERRRRSSSSIIIIOOOONNNN INF INF INF INFOOOO Menu Item This menu item displays the part number and revision level of the firmware used by this channels microprocessor. DDDDIIIISSSSPPPPLLLLAAAAYYYY AD AD AD ADCCCC Menu Item The options for this menu item are: • “OOOOFFFFFFFF” will allow the [VALUE] button to cycle through “TTTTKKKK” (tracking value), “HHHHIIII” (peak value) and “LLLLOOOO” (valley value). This is the recommended option. • “OOOONNNN” will allow the “AAAADDDD” (percentage of the Analog-to-Digital converter’s full-scale digitizing capability) display source to be available along with “TTTTKKKK” (tracking value), “HHHHIIII” (peak value) and “LLLLOOOO” (valley value) when the [VALUE] button is pressed on the front panel. The Analog-to-Digital converter counts are displayed as a percentage from -100.00% to 100.00%. This can be used to verify the correct operation of the input circuitry of the channel. LLLLIIIINNNNEEEEAAAARRRRIIIIZZZZAAAATTTTIIIION ON ON ON Menu Item The options for this menu item are: • “OOOONNNN” will allow the linearization data obtained from the 5-Point Known Load Cali- bration to affect a channel’s scaled values. This is the recommended option. • “OOOOFFFFFFFF” will not allow linearization data to effect the channel’s scaled values. This is useful when diagnosing problems in a calibration procedure. DDDDIIIISSSSAAAABBBBLLLLEEEE CCCCHHHHAAAANNNNNNNNEEEELLLL Menu Item The options for this menu item are: • “OOOONNNN” will bypass the INITIALIZE and RUN modes of the channel. The track, peak and valley values of the channel are forced to 0. This option is helpful when a channel is installed but not being used. • “OOOOFFFFFFFF” will allow normal operation of the channel.

FREQUENCY INPUT CHANNEL 3 3.7 Analog Output Configuration 3.7.1 Identifying the Output Type A Frequency Input channel is available with one of two types of digital-to-analog (DAC) outputs: voltage or current. You can determine which type of output a channel has by one of three ways: • Consulting the instrument’s Customer Information Sheet • Examining the SSSSYYYYSSSSTTTTEEEEMMMM MEN MEN MEN MENUUUU -> CCCCOOOONNNNFFFFIIIIGGGGUUUURRRRAAAATTTTIIIIOOOONNNN -> CCCCHHHHAAAANNNNNNNNEEEELLLL nn TTTTYYYYPPPPEEEE menu item where nn is the number of the channel. If the channel’s type is FFFFRRRREEEEQQQQUUUUEEEENNNNCCCCY Vo Y Vo Y Vo Y Vouuuutttt, it has a voltage output. If the channel’s type is FFFFRRRREEEEQQQQUUUUEEEENNNNCCCCYYYY Iou Iou Iou Ioutttt, it has a current output. • Examining the channel’s circuit board as shown in the figure below. 3.7.2 Channel Menu Items The Analog Output can be driven by any channel’s track, peak or valley value. See the “Channel Menu” section earlier in this chapter for a complete listing of SETUP menu items available on the DDDDAAAACCCC.... SETU SETU SETU SETUPPPP sub-menu. 3.7.3 Output Selection Jumpers located on the channel’s circuit board determine what outputs are gener- ated when the value selected to drive the Analog Output (from the DDDDAAAACCCC. CH . CH . CH . CHAAAANNNNNNNNEEEELLLL and DDDDAAAACCCC.... SOURC SOURC SOURC SOURCEEEE menu items) equals the DA DA DA DACCCC.... FULL S FULL S FULL S FULL SCCCCAL AL AL ALEEEE and DDDDAAAACCCC.... ZERO S ZERO S ZERO S ZERO SCCCCAAAALLLLEEEE settings. Figure 3-5: Digital-to-Analog Output Jumper Locations DDDDAAAACCCC.... ZZZZEEEERRRROOOO SCAL SCAL SCAL SCALEEEE Output DDDDAAAACCCC.... FFFFUUUULLLLLLLL SCAL SCAL SCAL SCALEEEE Output J30 jumper J31 jumper CHANNELS WITH VOLTAGE OUPUT 0-5V 2.5 Volts 5 Volts open closed ±5V 0 Volts 5 Volts open open 0-10V 5 Volts 10 Volts closed closed ±10V 0 Volts 10 Volts closed open CHANNELS WITH CURRENT OUTPUT 4-20mA 4 mA 20 mA open open 4-20mA 12 mA 20 mA open closed

3.8 Troubleshooting 3.8.1 Error Messages See the “Error Messages” chapter of the “SC Series Instruction Manual”, Sensotec p/ n 008-0608-00, for information relating to error messages. 3.8.2 Common Problems and Solutions Erratic Display Check “Wiring” on page 34 and make certain that nothing is connected to the pins labeled as “N/C”. Incorrect display readings over 50kHz The Frequency Input channel can only digitize signals with the minimum pulse speci- fied in “Channel Specifications” on pag e37. Analog Output Incorrect Make certain of the type of Analog Output (voltage or current) that the channel is equipped with; see “Identifying the Output Type” on page43. Use the DDDDIIIIAAAAGGGGNO NO NO NOSSSSTTTTIIIICCCCSSSS -> DDDDAC AC AC AC FFFFUL UL UL ULLLLL SC SC SC SCAAAALLLLEEEE and DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS -> DDDDAAAAC Z C Z C Z C ZEEEERRRRO S O S O S O SCCCCAAAALLLLEEEE menu items to force the Analog Output to a known output. Then, adjust your readout device, panel meter, PLC or data acquisition system to match. Check the output selection jumpers; see “Output Selection” on page 43. Auxiliary Function Pins Not Operating Make sure that the AAAAUX UX UX UX1111 FFFFUUUUNNNNCCCCTTTTIIIIOOOONNNN or AAAAUUUUXXXX2 F 2 F 2 F 2 FUUUUNNNNCCCCTTTTIIIIOOOONNNN SETUP menu items are set correctly; if they are set to DDDDIIIISSSSAAAABBBBLLLLEEEEDDDD then they will not operate. The Auxiliary Function (“AUX1” and “AUX2”) pins must be connected to pin 10, not pin 8, to activate them.

FREQUENCY INPUT CHANNEL 3 3.9 Communication Commands 3.9.1 Introduction This section only documents the communication commands that affect the opera- tion of the Frequency Input channel. Refer to document p/n 008-0610-00, “SC Series Communications Guide” for details regarding serial communications. This document can be downloaded from Sensotec’s web site, www.sensotec.com. 3.9.2 Descriptions F0 Transmit Track Data Purpose To transmit the channel’s tracking data value Usage "#aaccF0↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001F0↵" Reply " 0037.5” (typical) Remarks The input channel continuously reads the RTD. This function transmits the most recent reading. F9 Transmit Peak Data Purpose To transmit the channel’s peak data value Usage "#aaccF9↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001F9↵" Reply " 0162.5” (typical) or "N/A”

FA Transmit Valley Data Purpose To transmit the channel’s valley data value Usage "#aaccFA↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001FA↵" Reply "-0012.5” (typical) or "N/A” FB Clear Peak and Valley Data Purpose To reset the channel’s peak and valley data values to the track value. Usage "#aaccFB↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001FB↵" Reply "OK” or "N/A” Remarks This command is not available on the Model SC1000. FF Transmit Analog-to-Digital Converter Reading Purpose To transmit the Analog-to-Digital converter reading as a per- centage from -100% to +100% of the A/D converters’s full scale. Usage "#aaccFF↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001FF↵" Reply " 50.000” (typical) Remarks none

FREQUENCY INPUT CHANNEL 3 FH Write DAC Control Value Purpose To control the channel’s Digital-to-Analog Converter (DAC) manually or automatically. Usage "#aaccFHn↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number n is the argument defined below. ↵ is the ‘carriage return’ character (ASCII decimal 13). Argument "AUTO” returns the DAC to its normal automatic operation (power-on default). That is, it is controlled by the "DDDDAAAACCCC.... CCCCHHHHAAAANNNNNNNNEEEELLLL”, "DDDDAAAACCCC. SO . SO . SO . SOUUUURRRRCCCCEEEE”, "DDDDAAAACCCC. Z . Z . Z . ZEEEERRRROOOO----SSSSCCCCAAAALLLLEEEE” and "DDDDAAAACCCC. F . F . F . FUUUULLLLLLLL----SSSSCCCCAAAALLLLEEEE” menu items. If the argument is a numeric value between -1 and +1, the DAC is forced to manual control and the value is used to drive the DAC from -100% to +100% of its output. Example "#0001FH.5↵" will force channel 01’s DAC to +50% of full- scale. Reply "OK” or "ERROR” Remarks You might wish to force a channel’s DAC to a certain output to help calibrate the attached data acquisition system or other device. R6 Read Display Units Purpose Reads the channel’s "DDDDIS IS IS ISPPPPLLLLAAAAYYYY UNIT UNIT UNIT UNITSSSS” menu item Usage "#aaccR6↵" to read. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001R6↵” Reply When reading: a four-character string.

RK/WK Read/Write Known-Load Calibration Point Purpose Reads or writes the channel’s "KKKKNNNNOOOOWWWWNNNN POINT x POINT x POINT x POINT x////yyyy” menu items Usage "#aaccRKpp↵" to read, "#aaccWKppn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number pp is the parameter defined below. n is the known-load calibration point in engineering units. ↵ is the ‘carriage return’ character (ASCII decimal 13). Parameter "00” accesses the "KKKKNNNNOOOOWWWWNNNN POINT 1 POINT 1 POINT 1 POINT 1////5555” menu item. "01” accesses the "KKKKNNNNOOOOWWWWNNNN POINT 2 POINT 2 POINT 2 POINT 2////5555” menu item. "02” accesses the "KKKKNNNNOOOOWWWWNNNN POINT 3 POINT 3 POINT 3 POINT 3////5555” menu item. "03” accesses the "KKKKNNNNOOOOWWWWNNNN POINT 4 POINT 4 POINT 4 POINT 4////5555” menu item. "04” accesses the "KKKKNNNNOOOOWWWWNNNN POINT 5 POINT 5 POINT 5 POINT 5////5555” menu item. Example "#0001RK01↵” Reply When writing: "OK" or "ERROR”. When reading: an ASCII-floating-point value. Changing this value has no effect until the channel is re-cali- brated to the RTD with the Known-Load Calibration method.

FREQUENCY INPUT CHANNEL 3 RM/WM Read/Write DAC Channel & Value Purpose Reads or writes the channel’s "DDDDAAAACCCC.... CHANNE CHANNE CHANNE CHANNELLLL” and "DDDDAC AC AC AC.... SOURC SOURC SOURC SOURCEEEE” menu items Usage "#aaccRM↵" to read, "#aaccWMn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number. n is the argument defined below. ↵ is the ‘carriage return’ character (ASCII decimal 13). Argument A number which selects a channel’s value. This number is created by adding together the values of the desired options as shown. Channel Value Source Value 01 1. TRACK 0. 02 2. PEAK 16. 03 3. VALLEY 32. 04 4. 05 5. 06 6. 07 7. 08 8. 09 9. 10 10. 11 11. 12 12. 13 13. 14 14. 15 15. 16 64. 17 65. 18 66. 19 67. 20 68. 21 69. 22 70. 23 71. Example "#0001RM33↵" will cause the channel 01’s DAC to monitor channel 01’s valley value. Reply When writing: "OK", "ERROR” or "N/A”. When reading: a number corresponding to a channel number and data value as shown above. Remarks none

RN/WN Read/Write DAC Zero-Scale Value Purpose Reads or writes the channel’s "DDDDAAAACCCC.... ZERO-SCAL ZERO-SCAL ZERO-SCAL ZERO-SCALEEEE” menu item Usage "#aaccRN↵" to read, "#aaccWNn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number n is the zero Analog Output value in engineering units. ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001WN-8000↵” Reply When writing: "OK" or "ERROR”. When reading: an ASCII-floating-point value. RO/WO Read/Write DAC Full-Scale Value Purpose Reads or writes the channel’s "DDDDAAAACCCC.... FULL-SCAL FULL-SCAL FULL-SCAL FULL-SCALEEEE” menu item Usage "#aaccRO↵" to read, "#aaccWOn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number n is the full Analog Output value in engineering units. ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001WO8000↵” Reply When writing: "OK" or "ERROR”. When reading: an ASCII-floating-point value.

FREQUENCY INPUT CHANNEL 3 RP/WP Read/Write Operation Purpose Read or write the operation settings of the channel Usage "#aaccRPpp↵" to read, "#aaccWPppn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number. pp is one of the two-character parameters given below. n is the argument. ↵ is the ‘carriage return’ character (ASCII decimal 13). Parameters & Arguments Using pp="00” accesses the "AAAAUUUUTTTTOOOO----ZZZZEEEERRRROOOO” and "LLLLIIIINNNNEEEEAAAARRRRIIIIZZZZAAAATTTTIIIIOOOONNNN” menu items. When writing this parameter, the argument n is a number which selects different operating features. This number is created by adding together the values of the desired options as shown. Linearization Value OFF 0. ON 16. Using pp="01” accesses the "CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOONNNN TYP TYP TYP TYPEEEE” menu item. When reading this parameter: n=5 means 5-Point Known-Load Calibration. Using pp="02” accesses the "AAAAUUUUXXXX1111 FUNCTIO FUNCTIO FUNCTIO FUNCTIONNNN” menu item. Using pp="03” accesses the "AAAAUUUUXXXX2222 FUNCTIO FUNCTIO FUNCTIO FUNCTIONNNN” menu item. When writing these parameters: n=0 means the Auxiliary Function pin is disabled. n=1 means track hold. n=2 means peak & valley hold. n=4 means peak & valley clear (edge triggered). Using pp="04” accesses the "CCCCAAAALLLLIIIIBBBBRRRRAAAATTTTIIIIOOOON U N U N U N UNNNNIIIITTTT” menu item. This parameter can be read from, not written to. Example Sending "#0001WP0216↵" will allow the assertion of channel 01’s Auxiliary 1 Function pin to activate the Tare function. The instrument will reply with "OK". Reply When writing: "OK" or "ERROR” When reading: a numeric value or text string according to the information above.

RR Read Version Info Purpose Read version information found on the "VVVVEEEERRRRSSSSIIIIOOOONNNN INF INF INF INFOOOO” menu item. Usage "#aaccRR↵" # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number ↵ is the ‘carriage return’ character (ASCII decimal 13). Example "#0001RR↵" Reply A text string such as 084-1169-01 04 Remarks This is the part number and version of the firmware used by the channel’s microprocessor. RT/WT Read/Write Front Panel Switch Operation Purpose Reads or writes the operation of the front panel switches when the Protection jumper is installed. Usage "#aaccRT↵" to read, "#aaccWTn↵" to write. # is the ‘pound’ or ‘hash’ character (ASCII decimal 35). aa is the two-character instrument address. cc is the two-character channel number. n is the argument defined below. ↵ is the ‘carriage return’ character (ASCII decimal 13). Argument The argument is created by adding together the values of the desired options as shown. [VALUE] Value [CLEAR] Value ENABLED 0. ENABLED 0. DISABLED 8. DISABLED 4. [CHANNEL] Value [TARE] Value ENABLED 0. ENABLED 0. DISABLED 2. DISABLED 1. Example It is desired to disable the [TARE] button for channel 02 when the Protection jumper is installed. Sending "#0002WT1↵" will accomplish this. Reply When writing: "OK" or "ERROR”. When reading: an ASCII-floating-point value described above. Remarks If a disabled front panel button is pressed, the message " PPPPRRRROOOO---- TTTTEEEECCCCTTTTEEEEDDDD” will appear on the display.

SETUP MENU REFERENCE 4 Chapter 4 Setup Menu Reference 4.1 Navigation instructions • Press [UP]+[DOWN] to enter the SETUP menu mode. • Press [UP] to move up. • Press [DOWN] to move down. • Press [ENTER] to select an item. • Press [EXIT] to re-start the instrument.

Table 4-1: RTD Input Channel Men u CCCCHHHHAAAANNNNNNNNEEEELLLL xx ME xx ME xx ME xx MENNNNUUUU ৄ�ৄ OOOOPPPPEEEERRRRAAAATTTTIIIIOOOONNNN ৄ�ৄ PPPPOOOOWWWWEEEERRRR----OOOONNNN SOURC SOURC SOURC SOURCEEEE ৄ�ৄ TTTTRRRRAAAACCCCKKKK page 14 ৆ ৆ �ৄ PPPPEEEEAAAAKKKK ৆ ৆ ৒ৄ VVVVAAAALLLLLLLLEEEEYYYY ৆ ৒ৄ LLLLEEEEAAAAVVVVEEEE SUB-MEN SUB-MEN SUB-MEN SUB-MENUUUU ৆ �ৄ DDDDIIIISSSSPPPPLLLLAAAAYYYY UNI UNI UNI UNITS TS TS TS ৄ�ৄ ddddeeeeggggCCCC to d to d to d to deeeeggggCCCC page 15 ৆ �ৄ ddddeeeeggggCCCC to d to d to d to deeeeggggFFFF ৆ ৒ৄ ddddeeeeggggCCCC tttto K o K o K o K ৆ �ৄ AAAAUUUUXXXX1111 FUNCTI FUNCTI FUNCTI FUNCTION ON ON ON ৄ�ৄ DDDDIIIISSSSAAAABBBBLLLLEEEEDDDD page 15 ৆ �ৄ TTTTRRRRAAAACCCCKKKK HOL HOL HOL HOLDDDD ৆ �ৄ HHHHIIIIGGGGHHHH////LLLLOOOOWWWW HO HO HO HOLD LD LD LD ৆ ৒ৄ HHHHIIIIGGGGHHHH////LLLLOOOOWWWW CLEA CLEA CLEA CLEARRRR �ৄ AAAAUUUUXXXX2222 FUNCTI FUNCTI FUNCTI FUNCTION ON ON ON ৄ�ৄ DDDDIIIISSSSAAAABBBBLLLLEEEEDDDD page 15 ৆ �ৄ TTTTRRRRAAAACCCCKKKK HOL HOL HOL HOLDDDD ৆ �ৄ HHHHIIIIGGGGHHHH////LLLLOOOOWWWW HO HO HO HOLD LD LD LD ৆ ৒ৄ HHHHIIIIGGGGHHHH////LLLLOOOOWWWW CLEA CLEA CLEA CLEARRRR ৆ �ৄ CCCCAAAALLLLIIIIBBBBRRRRAAAATI TI TI TIOOOONNNN TYP TYP TYP TYPEEEE ৄৄৄ TTTTYYYYPPPPEEEE====5555 POINT CA POINT CA POINT CA POINT CALLLL page 16 ৆ �ৄ CCCCAAAALLLLIIIIBBBBRRRRAAAATI TI TI TIOOOONNNN DAT DAT DAT DATAAAA ৄ�ৄ CCCCAAAALLLLIIIIBBBBRRRRAAAATI TI TI TIOOOONNNN UNI UNI UNI UNITTTT ৄ�ৄ ddddeeeeggggCCCC page 17 ৆ ৆ �ৄ ddddeeeeggggFFFF ৆ ৆ ৒ৄ KKKK ৆ �ৄ KKKKNNNNOOOOWWWWNNNN LOAD POINT 1/ LOAD POINT 1/ LOAD POINT 1/ LOAD POINT 1/5555 ৆ �ৄ KKKKNNNNOOOOWWWWNNNN LOAD POINT 2/ LOAD POINT 2/ LOAD POINT 2/ LOAD POINT 2/5555 ৆ �ৄ KKKKNNNNOOOOWWWWNNNN LOAD POINT 3/ LOAD POINT 3/ LOAD POINT 3/ LOAD POINT 3/5555 ৆ �ৄ KKKKNNNNOOOOWWWWNNNN LOAD POINT 4/ LOAD POINT 4/ LOAD POINT 4/ LOAD POINT 4/5555 ৆ �ৄ KKKKNNNNOOOOWWWWNNNN LOAD POINT 5/ LOAD POINT 5/ LOAD POINT 5/ LOAD POINT 5/5555 ৆ ৒ৄ LLLLEEEEAAAAVVVVEEEE SUB-MEN SUB-MEN SUB-MEN SUB-MENUUUU �ৄ CCCCAAAALLLLIIIIBBBBRRRRAAAATE TE TE TE page 17 ৆ �ৄ DDDDAAAACCCC SETU SETU SETU SETUPPPP ৄ�ৄ DDDDAAAACCCC.... CHANNE CHANNE CHANNE CHANNELLLL page 19 ৆ �ৄ DDDDAAAACCCC.... SOUR SOUR SOUR SOURCE CE CE CE ৄ�ৄ TTTTRRRRAAAACCCCKKKK ৆ ৆ �ৄ PPPPEEEEAAAAKKKK ৆ ৆ ৒ৄ VVVVAAAALLLLLLLLEEEEYYYY ৆ �ৄ DDDDAAAACCCC.... ZERO-SCAL ZERO-SCAL ZERO-SCAL ZERO-SCALEEEE ৆ �ৄ DDDDAAAACCCC.... FULL-SCAL FULL-SCAL FULL-SCAL FULL-SCALEEEE ৆ ৒ৄ LLLLEEEEAAAAVVVVEEEE SUB-MEN SUB-MEN SUB-MEN SUB-MENUUUU ৆ �ৄ DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS ৄ�ৄ DDDDAAAACCCC FULL SC FULL SC FULL SC FULL SCAL AL AL ALEEEE page 20 ৆ �ৄ DDDDAAAACCCC ZERO SC ZERO SC ZERO SC ZERO SCAL AL AL ALEEEE ৆ �ৄ VVVVEEEERRRRSSSSIIIIOOOONNNN INF INF INF INFOOOO ৆ �ৄ DDDDIIIISSSSPPPPLLLLAAAAYYYY AAAADC DC DC DC ৄ�ৄ OOOONNNN ৆ ৆ ৒ৄ OOOOFFFFFFFF ৆ �ৄ LLLLIIIINNNNEEEEAAAARRRRIIIIZZZZAAAATI TI TI TIOOOONNNN ৄ�ৄ OOOONNNN ৆ ৆ ৒ৄ OOOOFFFFFFFF ৆ �ৄ DDDDIIIISSSSAAAABBBBLLLLEEEE CHANNE CHANNE CHANNE CHANNELLLL ৄ�ৄ OOOONNNN ৆ ৆ ৒ৄ OOOOFFFFFFFF ৆ ৒ৄ LLLLEEEEAAAAVVVVEEEE SUB-MEN SUB-MEN SUB-MEN SUB-MENUUUU ৒ৄ LLLLEEEEAAAAVVVVEEEE MEN MEN MEN MENUUUU

SETUP MENU REFERENCE 4 Table 4-2: Frequency Input Channel Menu CCCCHHHHAAAANNNNNNNNEEEELLLL xx ME xx ME xx ME xx MENNNNUUUU ৄ�ৄ OOOOPPPPEEEERRRRAAAATTTTIIIIOOOONNNN ৄ�ৄ PPPPOOOOWWWWEEEERRRR----OOOONNNN SOURC SOURC SOURC SOURCEEEE ৄ�ৄ TTTTRRRRAAAACCCCKKKK page 38 ৆ ৆ �ৄ PPPPEEEEAAAAKKKK ৆ ৆ ৒ৄ VVVVAAAALLLLLLLLEEEEYYYY ৆ ৒ৄ LLLLEEEEAAAAVVVVEEEE SUB-MEN SUB-MEN SUB-MEN SUB-MENUUUU ৆ �ৄ AAAAUUUUXXXX1111 FUNCTI FUNCTI FUNCTI FUNCTION ON ON ON ৄ�ৄ DDDDIIIISSSSAAAABBBBLLLLEEEEDDDD page 38 ৆ �ৄ TTTTRRRRAAAACCCCKKKK HOL HOL HOL HOLDDDD ৆ �ৄ HHHHIIIIGGGGHHHH////LLLLOOOOWWWW HO HO HO HOLD LD LD LD ৆ ৒ৄ HHHHIIIIGGGGHHHH////LLLLOOOOWWWW CLEA CLEA CLEA CLEARRRR �ৄ AAAAUUUUXXXX2222 FUNCTI FUNCTI FUNCTI FUNCTION ON ON ON ৄ�ৄ DDDDIIIISSSSAAAABBBBLLLLEEEEDDDD page 38 ৆ �ৄ TTTTRRRRAAAACCCCKKKK HOL HOL HOL HOLDDDD ৆ �ৄ HHHHIIIIGGGGHHHH////LLLLOOOOWWWW HO HO HO HOLD LD LD LD ৆ ৒ৄ HHHHIIIIGGGGHHHH////LLLLOOOOWWWW CLEA CLEA CLEA CLEARRRR ৆ �ৄ CCCCAAAALLLLIIIIBBBBRRRRAAAATI TI TI TIOOOONNNN TYP TYP TYP TYPEEEE ৄৄৄ TTTTYYYYPPPPEEEE====5555 POINT CA POINT CA POINT CA POINT CALLLL page 39 ৆ �ৄ CCCCAAAALLLLIIIIBBBBRRRRAAAATI TI TI TIOOOONNNN DAT DAT DAT DATAAAA ৄ�ৄ CCCCAAAALLLLIIIIBBBBRRRRAAAATI TI TI TIOOOONNNN UNI UNI UNI UNITTTT ৄ�ৄ ddddeeeeggggCCCC page 40 ৆ ৆ �ৄ ddddeeeeggggFFFF ৆ ৆ ৒ৄ KKKK ৆ �ৄ KKKKNNNNOOOOWWWWNNNN LOAD POINT 1/ LOAD POINT 1/ LOAD POINT 1/ LOAD POINT 1/5555 ৆ �ৄ KKKKNNNNOOOOWWWWNNNN LOAD POINT 2/ LOAD POINT 2/ LOAD POINT 2/ LOAD POINT 2/5555 ৆ �ৄ KKKKNNNNOOOOWWWWNNNN LOAD POINT 3/ LOAD POINT 3/ LOAD POINT 3/ LOAD POINT 3/5555 ৆ �ৄ KKKKNNNNOOOOWWWWNNNN LOAD POINT 4/ LOAD POINT 4/ LOAD POINT 4/ LOAD POINT 4/5555 ৆ �ৄ KKKKNNNNOOOOWWWWNNNN LOAD POINT 5/ LOAD POINT 5/ LOAD POINT 5/ LOAD POINT 5/5555 ৆ ৒ৄ LLLLEEEEAAAAVVVVEEEE SUB-MEN SUB-MEN SUB-MEN SUB-MENUUUU �ৄ CCCCAAAALLLLIIIIBBBBRRRRAAAATE TE TE TE page 40 ৆ �ৄ DDDDAAAACCCC SETU SETU SETU SETUPPPP ৄ�ৄ DDDDAAAACCCC.... CHANNE CHANNE CHANNE CHANNELLLL page 41 ৆ �ৄ DDDDAAAACCCC.... SOUR SOUR SOUR SOURCE CE CE CE ৄ�ৄ TTTTRRRRAAAACCCCKKKK ৆ ৆ �ৄ PPPPEEEEAAAAKKKK ৆ ৆ ৒ৄ VVVVAAAALLLLLLLLEEEEYYYY ৆ �ৄ DDDDAAAACCCC.... ZERO-SCAL ZERO-SCAL ZERO-SCAL ZERO-SCALEEEE ৆ �ৄ DDDDAAAACCCC.... FULL-SCAL FULL-SCAL FULL-SCAL FULL-SCALEEEE ৆ ৒ৄ LLLLEEEEAAAAVVVVEEEE SUB-MEN SUB-MEN SUB-MEN SUB-MENUUUU ৆ �ৄ DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS ৄ�ৄ DDDDAAAACCCC FULL SC FULL SC FULL SC FULL SCAL AL AL ALEEEE page 42 ৆ �ৄ DDDDAAAACCCC ZERO SC ZERO SC ZERO SC ZERO SCAL AL AL ALEEEE ৆ �ৄ VVVVEEEERRRRSSSSIIIIOOOONNNN INF INF INF INFOOOO ৆ �ৄ DDDDIIIISSSSPPPPLLLLAAAAYYYY AAAADC DC DC DC ৄ�ৄ OOOONNNN ৆ ৆ ৒ৄ OOOOFFFFFFFF ৆ �ৄ LLLLIIIINNNNEEEEAAAARRRRIIIIZZZZAAAATI TI TI TIOOOONNNN ৄ�ৄ OOOONNNN ৆ ৆ ৒ৄ OOOOFFFFFFFF ৆ �ৄ DDDDIIIISSSSAAAABBBBLLLLEEEE CHANNE CHANNE CHANNE CHANNELLLL ৄ�ৄ OOOONNNN ৆ ৆ ৒ৄ OOOOFFFFFFFF ৆ ৒ৄ LLLLEEEEAAAAVVVVEEEE SUB-MEN SUB-MEN SUB-MEN SUB-MENUUUU ৒ৄ LLLLEEEEAAAAVVVVEEEE MEN MEN MEN MENUUUU

INDEX Index C Communications Guide 6 Customer Information Sheet 6 F Frequency Input channel Analog Output 41–44 Auxilliary Function pins 38, 44 calibration 36 communication commands 45 features 33 frequency response 37 Getting Started Quickly 33 remote control of Track/Hold, Peak/Valley clear, Peak/Valley hold 38 SETUP menu 38 software revision 42 specifications 37 step response 37 troubleshooting 44 wiring 34 R RTD Input channel Analog Output 19, 21–22 Auxilliary Function pins 15, 22 calibration 12 communication commands 23 display OVLD message 22 units of measure 15 features 9 frequency response 13 getting started quickly 9 remote control of Track/Hold, Peak/Valley clear, Peak/Valley hold 15 SETUP Menu 14 software revision 20 specifications 13 step response 13 troubleshooting 22 wiring 10 S Serial Communications Guide 6

WARRANTY/REPAIR POLICY W arranty/Repair Policy Limitation of Remedy and Disclaimer of Warranty Any of our products which, under normal operating conditions, proves defective in material or in workmanship within one year from the date of shipment by Senso- tec, Inc., will be repaired or replaced free of charge, provided that the buyer (1) promptly notifies Sensotec, Inc. of any such defect; (2) provides Sensotec, Inc. with satisfactory proof of the defect and that the product was properly installed, maintained, and operated within the limits of rated and normal usage; and (3) obtains from Sensotec, Inc. authorization to return the product. Any such product shall be returned with transportation charges prepaid. The replacement product will be shipped F.O.B. our plant. The remedy set forth herein does not extend to any product or part thereof which, under normal usage, has an inherently shorter useful life than one year. The rem- edy set forth herein does not apply to damage or to defects in any product caused by the buyer’s misuse or neglect, nor does it apply to any product which has been repaired or disassembled which, in the sole judgement of Sensotec, Inc. affects the performance of the product. The remedy set forth herein is the buyer's exclusive remedy, and will satisfy all obligations of Sensotec, Inc. whether based on contract, negligence, or otherwise. Sensotec, Inc. is not responsible for any incidental or consequential loss or dam- age which might result from a failure of any Sensotec, Inc. product. THIS EXPRESS WARRANTY IS MADE IN LIEU OF ANY AND ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE. Obtaining Service Under Warranty Advanced authorization is required prior to the return to Sensotec, Inc. Before returning the items, either write to the Repair Department c/o Sensotec, Inc., 2080 Arlingate Lane, Columbus, Ohio 43228, or call (800) 848-6564 with: 1) a part number; 2) a serial number of the defective product; 3) a technical description* of the defect; 4) a no-charge purchase order number (so products can be returned to you correctly); and 5) ship and bill addresses. Shipment to Sensotec, Inc. shall be at Buyer's expense and repaired or replacement items will be shipped F.O.B. our plant in Columbus, Ohio. Non-verified problems or defects may be subject to an evaluation charge. Please return the original calibration data with the unit. Obtaining Non-warranty Service Advance authorization is required prior to the return to Sensotec, Inc. Before returning the item, either write to the Repair Department c/o Sensotec, Inc., 2080 Arlingate Lane, Columbus, Ohio 43228, or call (800) 848-6564 with: 1) a part number; 2) a serial number of the defective product; 3) a technical description* of the malfunction; 4) a purchase order number to cover Sensotec, Inc.'s repair cost; and 5) ship and bill addresses. After the product is evaluated by Sensotec, Inc., we will contact you to provide the estimated repair costs before proceeding. The minimum evaluation charge is $95. Shipment to Sensotec, Inc. shall be at Buyer's expense and repaired items will be shipped to you F.O.B., our plant in Columbus, Ohio. Please return the original calibration data with the unit. Repair Warranty All repairs of Sensotec, Inc. products are warranted for a period of 90 days from date of shipment. This warranty applies only to those items which were found defective and repaired. It does not apply to products in which no defect was found and returned as is or merely re-calibrated. Out of warranty products may not be capable of being returned to the exact original specifications or dimensions. *Technical description of the defect: In order to properly repair a product, it is necessary for Sensotec, Inc. to receive information specifying the reason the product is being returned. Specific test data, written observations on the failure and specific corrective action you require is needed.

Columbus, Ohio 43228 Tel: (614)850-5000 Fax: (614)850-1111 E-mail: [email protected] http://www.sensotec.com