Milltronics COMPUFLO III Instruction Manual

TITLE PAGE # General Information About the CompuFlo III 1 – 1 About this Manual General 1 – 2 Conventions 1 – 2 Specifications CompuFlo III 2 – 1 Options 2 – 2 Installation CompuFlo III 3 – 1 Interconnection 3 – 1 Hazardous Locations 3 – 1 Start Up Hardware Set Up 4 – 1 Pre Start Up Checks 4 – 3 Initial Start Up 4 – 3 Programming General 5 – 1 Keypad 5 – 1 Parameter Entry 5 – 2 Direct Parameter Access 5 – 2 Automatic Parameter Access 5 – 2 Altering Parameter Values 5 – 3 Last Parameter Recall 5 – 3 Parameter Reset 5 – 3 Programming Sequence 5 – 3 Quick Start Procedure 5 – 3 Calibration General 6 – 1 Initial Calibration References 6 – 1 Zero 6 – 2 Span 6 – 2 Calibration Accuracy 6 – 2 Calibration Alternatives 6 – 3 Auto Zero 6 – 3 Lockout Mode 6 – 3 On-Line Span Calibration 6 – 3 Alternate Test References 6 – 4 ECAL Calibration 6 – 4 PL-368 i

Parameters 7 – 1 Programming Chart 8 – 1 Operation Initial Operation 9 – 1 Normal Operation Start Up 9 – 2 Zero Calibration Check 9 – 2 Span Calibration Check 9 – 2 Reset Total 9 – 2 Run 9 – 2 Communication General 10 – 1 Remote Communication 10 – 2 Host Communication 10 – 2 Serial Printer Communication 10 – 2 Protocol 10 – 3 Data Field Descriptions 10 – 3 Message Requests 10 – 4 Message Responses 10 – 4 Appendices Alphabetical Parameter Listing 11 – 1 Maintenance and Spare Parts 11 – 2 Error Messages 11 – 3 Trouble Shooting 11 – 4 Quick Start 11 – 5 Start Up 11 – 5 Calibration 11 – 6 Operation 11 – 7 Performance Enhancement 11 – 7 Figures FIG. 1 Outline and Mounting 12 – 1 FIG. 2 Layout 12 – 2 FIG .3 CompuFlo III / Flowmeter Interconnection 12 – 3 FIG. 4 Power, Auto Zero, & Rate Output Wiring 12 – 4 FIG. 5 Relay Wiring 12 – 5 FIG. 6 Communication Wiring 12 – 6 PL-368 ii

The Milltronics CompuFlo III is a microprocessor based integrator designed specifically for bulk dry solids in-line weighing applications. The CompuFlo III integrates a signal proportional to material flowrate (such as from a Milltronics flowmeter) over time to provide material totalization. The CompuFlo III provides: » Rate and Total displays » an analog mA output proportional to rate » a relay contact for remote totalizer or PLC operation » 2 alarm/control relays based on rate and/or On-line Calibration » 2 communication ports for computer, PLC, or serial printer connection The CompuFlo III has three modes of operation; program, calibrate and run. The operator programs the CompuFlo III via the keypad to provide displays and outputs in the desired units of measure. The CompuFlo III displays the name, range of acceptable values, (and additional information/instruction) of the parameter (programming feature) accessed. In the calibrate mode, the system Zero (no flow) and Span (100% flowrate) calibration is established. A test reference (test weight) is used to simulate the force of material impacting the flowmeter sensing plate during the Span calibration. A material test is normally performed to verify the calibration accuracy. If necessary, the material test results may be used to correct any deviation in calibration accuracy. Calibration accuracy may be checked at any time. The results of this check are automatically compared to the system calibration and the deviation is displayed. The operator may choose to continue operation with the previous calibration or the results of the calibration check. All programming and calibration information is stored in non-volatile memory. If desired, the security parameter may be set to ensure the CompuFlo III programming and calibration is not inadvertently altered in the run mode. The run mode is the normal operating mode, providing dynamic measurement displays, analog mA output, and a variety of other features. T 1263957 TOTAL 150% 100% 50% 0% -50% MULTI SPAN NO: 1 R2:RATE HI R1:SPEED LO PL-368 1 – 1

GENERAL This instruction manual contains information essential to successful CompuFlo III operation. SPECIFICATIONS, includes CompuFlo III environmental, physical, and operational characteristics. INSTALLATION, indicates the typical mounting and interconnection procedure. START UP, prepares the CompuFlo III for programming. PROGRAMMING, details activities required to tailor the CompuFlo III to the particular application. CALIBRATION, includes the CompuFlo III input signal to output feature correlation procedure. PARAMETERS, describes the function, factory setting, and range of possible settings, of each parameter. PROGRAMMING CHART, provides a space to record programmed parameter values for future reference. OPERATION, describes initial and normal CompuFlo III operation. COMMUNICATION, provides CompuFlo III serial communication information. APPENDICES, contains Quick Start, Alphabetical Parameter List, Maintenance and Spare Parts, Error Messages and Trouble Shooting information. FIGURES, includes a complete set of installation and interconnection drawings. CONVENTIONS Throughout this instruction manual the following symbols and presentation practices have been utilized: [1234567ABCDEFG] alpha numeric characters enclosed within these brackets represents information displayed by the CompuFlo III display. [T/h] units of measure were arbitrarily chosen from the imperial set. The actual units displayed or otherwise applicable will be dependent upon operator programming. indicates the following CompuFlo III keypad button is to be pressed. "RUN" or alpha numeric characters enclosed within quotation marks or this symbol represent a key on the CompuFlo III keypad. Italics are used to identify the defined word(s) or phrase within a definition statement. Information of a higher order of importance, is indented from both left and right margins and in bold print. I ENTER PL-368 1 – 2

selectable, 50/60 Hz, 65 VA Fuse: » FU 1 » 3/4 Amp MDL SLO-BLO or equivalent » FU 2 » 1/4 Amp MDL SLO-BLO or equivalent Operating » -20 to 50°C (-5 to 122°F) Temperature: Accuracy: » 0.1% of span, typical Resolution: » 0.02% of span, typical Inputs: » Load cell: » -20 to +45 mV DC per load cell » 2 load cells max. » LVDT: » 0 to 0.75 Vrms, 3 kHz » Multispan: » 4 contact inputs for up to 8 spans » Keypad: » 20 key sealed membrane with tactile feedback » On-Line: » 4-20 mA proportional to weight (Calibration) » Auto Zero » contact input for enable » Printer: » contact input for print request Outputs: » Load cell: » 10 V DC, 250 mA max. (excitation) » LVDT: » 2.0 Vrms, 3 kHz, 50 mArms max. (excitation) » Analog: » 4-20 mA,(0-25 mA scaleable), isolated, proportional to rate » 0.1% resolution » 750 Ω max. load » Remote » SPST sealed relay Totalizer: » 1 form "A" contact rated 2A at 250 V AC, 100 VA max. » 25 msec. minimum contact closure duration » 15 closures per second max PL-368 2 – 1

assignment » 1 Form "C" SPDT contact per relay, rated 5A at 230 V AC » Communication: » 1 relay, 4PDT used for communication loop dropout, rated 1A at 230 V AC » Display: » illuminated 256 x 128 dot matrix Communication: » 2 serial ports » RS232C and ± 20 mA current loop Enclosure: » NEMA 4 style, steel construction with polycarbonate window » 330 mm W x 406 mm H x 102 mm D (13" W x 16" H x 4" D) Shipping Weight: » 11.0 Kg (24.3 lbs), no options OPTIONS Cable: » Single load cell, 150m (500 ft) max. 20 AWG, 4 wire shielded, Belden 8404 or equivalent » Single load cell, 300m (1000 ft) max. 20 AWG, 6 wire shielded, Belden 8426 or equivalent » Dual load cell, 150 m (500 ft) max. 20 AWG, 6 wire shielded, Belden 8426 or equivalent » Dual load cell, 300 m (1000 ft) max. 20 AWG, 8 wire shielded, Belden 8418 or equivalent » LVDT, 150 m (500 ft) max. 20 AWG, 4 wire shielded, Belden 8404 or equivalent Barrier Strips: » For hazardous location flowmeters Enclosure Heater: » Recommended for operating temperatures below -10°C (14°F) or excessive humidity Relay: » Food Grade remote totalizer relay CVCC: » For bipolar current loop/RS-232C conversion BIC-II: » For 6 port bipolar current loop/RS-232C or RS-422 conversion. I PL-368 2 – 2

suitable for NEMA 4 style enclosures. The front cover should be accessible for keypad operation, display viewing, and have sufficient room to swing open. It is advisable to keep the CompuFlo III away from high voltage or current runs, contactors, SCR control drives and RF interference. For proper totalizer relay operation, the CompuFlo III must be mounted within 30° from vertical. Do not mount the CompuFlo III in direct sunlight without the use of a sun shield. INTERCONNECTION Remove the enclosure bottom plate prior to drilling or punching cable/conduit entrance(s), to ensure metal filings do not come in contact with the CompuFlo III electronics. Load cell or LVDT, rate output, On-Line Calibration input, communication, and low voltage contact wiring may be run in a common conduit separated from power and high voltage contact wiring. Refer to Figures. The power ground (TB1-50) is internally connected to SHLD connections (TB1-13,26, TB2-5), and to the mother board bottom mounting lugs. COM connections (TB1-15,29,32,36,37, and TB2-8) are connected to power ground via jumper J2 (below TB1, between the mounting lugs). If the COM connections must be isolated from power ground, remove J2. Refer to FIGURES All wiring must be performed in accordance with all governing regulations. HAZARDOUS LOCATIONS The CompuFlo III cannot be mounted in an area classed as hazardous. Where the associated flowmeter is mounted in a hazardous area, barrier strips must be used to isolate the CompuFlo III from the hazardous area for intrinsic safety. Encapsulated LVDT transducing elements are also available. Contact Milltronics or your local representative for hazardous application information. I PL-368 3 – 1

UNIT I.D. The CompuFlo III identification code factory setting is 00, as set by SW1 contacts 1 - 4. When more than one CompuFlo III is connected to a host computer or PLC, the identification code of each CompuFlo III must be set to a different value. O = switch contact open C = switch contact closed UNITS OF MEASURE Two sets of Units are available; Imperial and Metric. Leave SW1 contact 5 (SW1-5) in the open position for Imperial, or closed for Metric units. Refer to PARAMETERS / P0 - RATE UNITS for the Rate Unit options available. SW1-5 must be set to the desired position before initial programming is performed. To alter the Units of Measure of a programmed CompuFlo III, set SW1-5 as desired, then perform a Reset. Refer to Parameters / P99 Reset. LOCKOUT Leave SW1 contact 6 (SW1-6) in the open position for normal applications. Close SW1-6 for Lockout Mode operation, after all programming and calibration is complete. Refer to Calibration / Calibration Alternatives. TOTALIZER RESET Leave SW1 contact 7 (SW1-7) in the open position for normal operation. When this contact is closed, the Main Total Display cannot be reset. TEST MODE Leave SW1 contact 8 (SW1-8) in the open position for normal operation. The closed position is reserved for Milltronics service personnel. IMPERIAL UNIT I. D. # MAIN TOTAL RESET LOCKOUT TEST METRIC NORMAL 1 2 4 8 0 0 0 0 SW1 UNIT SW 1 I. D. 1 2 3 4 08 O O O C 09 C O O C 10 O C O C 11 C C O C 12 O O C C 13 C O C C 14 O C C C 15 C C C C UNIT SW 1 I. D. 1 2 3 4 00 O O O O 01 C O O O 02 O C O O 03 C C O O 04 O O C O 05 C O C O 06 O C C O 07 C C C O PL-368 4 – 1

The CompuFlo III TB2 communication port baud rate is independent of the PORT 1 baud rate, and is set by SW2 contacts 1 and 2. Set the baud as required by the device connected. The factory setting is 300 baud. O = switch contact open C = switch contact closed LANGUAGE Leave SW2 contact 3 (SW2-3) in the open position for English, or closed for alternate language, CompuFlo III displays. REMOTE DISPLAY Leave SW2 contact 6 (SW2-6) open for normal operation. If a remote mounted terminal is used, SW2-6 of the remote terminal (only) must be closed. PORT 2 COMMUNICATION MODE Leave SW2 contact 7 (SW2-7) open for normal operation, or closed if a serial printer is connected to PORT 2. TEST/ADJUST MODE Leave SW2 contact 8 (SW2-8) in the open position for normal operation. In the closed position, a test menu is displayed. When the keypad test is selected, a pictorial representation of the keypad is displayed. As each keypad button is depressed, the display indicates successful operation. When the display contrast adjustment is selected, pressing "4" increases, and pressing "8" decreases the display contrast. NORMAL SPARE ENGLISH ALTERNATE TB2 BAUD SERIAL PRINTER REMOTE TERMINAL TEST / ADJUST 4 1 4 3 X X 2 0 0 0 0 SW2 Baud SW2 Rate 1 2 300 O O 1200 C O 2400 O C 9600 C C PL-368 4 – 2

After the CompuFlo III has been properly installed and interconnected, the following checks should be performed prior to connecting power: »all cable connections are correct and secure. »the proper voltage has been selected (J1 on the mother board). »SW1 and SW2 have been set as required. »the POWER switch is in the OFF position. Connect power to TB1-51,52 and ground to TB1-50 of the CompuFlo III. Ensure all connections are secure. Do not operate the CompuFlo III with the ground (earth) wire disconnected. INITIAL START UP Set the CompuFlo III POWER switch to the ON position. The CompuFlo III will enter the following initialization routine: COMPUSCALE/FLO III (REV DATE) (EPROM 2 REV) TEST : (MESSAGES) PL-368 4 – 3

the CompuFlo III is not programmed, the parameter entry display is accessed. The CompuFlo III display is divided into the following fields: FIELD DESCRIPTION MULTISPAN current span calibration selected. If Multispan 0 is selected, the field is blank. RELAY current relay status (run mode). If relays are not used, or in non-alarm, the field is blank. FEATURE parameter number (parameter entry), calibration type (calibrate mode), Rate or Total (run mode) ECAL indicates ECAL (simulated rate signal) is on. If ECAL is off, the field is blank. CYCLE full cycles remaining before calibration completion (calibrate mode). CALIB calibrate mode indicator. When displayed, totalizers are on HOLD (unless otherwise specified). VALUE the current value associated with the feature selected. UNITS the units of measure associated with the value displayed AUX 1 parameter name (parameter entry), auxiliary message (calibrate mode), not used (run mode). AUX 2 parameter value range (parameter entry), additional information or error message (any mode). BAR GRAPH represents current rate, displayed as percent of span (run mode). I 150% 100% RATE 0% -50% FEATURE ECAL VALUE AUX 1 AUX 2 RELAY CALIB CYCLE UNITS RATE BAR GRAPH MULTISPAN PL-368 4 – 4

to the calibration procedure. KEYPAD Button Operation Function parameter entry numeric entries parameter entry increase: analog mA output (P17 and P18 only), ECAL value (P22 only) parameter entry decrease: analog mA output (P17 and P18 only), ECAL value (P22 only) parameter entry decimal point parameter entry negative entry or display previous parameter any mode enter the run mode, return to previously selected display any mode access parameter for entry or viewing any mode access zero calibration, view current zero count any mode access span calibration, view current span count any mode enter the run mode, select rate or total display any mode reset displayed totalizer value to zero (refer to Start Up\Hardware Set Up\Totalizer Reset) parameter entry clear entry calibrate mode abort calibration parameter entry display parameter value, or store altered parameter value, or display next parameter calibrate mode activate zero or span calibration, or accept calibration results any mode with total displayed, switch to alternate total (main or sub) 8 0 – 9 RUN PAR ZERO SPAN ALT DISP RESET TOTAL CLEAR ENTER 4 PL-368 5 – 1

are identified by a Parameter Number (P#). The information entered is referred to as a Parameter Value (Value). To enter information, the operator accesses the desired parameter number, views the parameter value displayed, and then accepts or alters the current parameter value. DIRECT PARAMETER ACCESS To directly access any parameter, followed by the parameter number. Only valid parameter numbers will be accepted. Refer to PARAMETERS for the list of valid parameter numbers. eg. [PARAMETER ] is displayed in the FEATURE field, if PARAMETER 0 is desired [PARAMETER 0 ] is displayed in the FEATURE field, [RATE UNITS ] is displayed in the AUX 1 field. To view the current parameter value and auxiliary messages for the displayed parameter, [PARAMETER 0 ] is displayed in the FEATURE field [ 1 ] is displayed in the VALUE field (unless previously altered) [RATE UNITS ] is displayed in the AUX 1 field [1:T/h;2:LT/h;3:lb/h;4:lb/min ] is displayed in the AUX 2 field (with SW1-5 open) AUTOMATIC PARAMETER ACCESS Upon accessing any parameter value, pressing "ENTER" will automatically access the next parameter in the programming sequence. Pressing "-" will automatically access the previous parameter. eg. with the VALUE field of PARAMETER 0 displayed... [PARAMETER 1 ] is displayed in the FEATURE field [ 0.0000 ] is displayed in the VALUE field (unless previously altered) [RATE ] is displayed in the AUX 1 field [ENTER VALUE ] is displayed in the AUX 2 field all fields associated with PARAMETER 0 are displayed 150% 100% RATE 0% -50% FEATURE VALUE AUX 2 UNITS AUX 1 RATE BAR GRAPH Common Parameter Entry Display Fields 0 PAR ENTER PAR ENTER PL-368 5 – 2

Once the desired parameter number is accessed, the parameter value may be accepted or altered as required. eg. if the VALUE field of PARAMETER 0 is 1 (T/h), however 2 (LT/h) is desired [ 2 ] is displayed in the VALUE field the new value (2) is now stored in memory LAST PARAMETER RECALL From the Calibrate or Run mode, the last parameter accessed in the Program mode, may be recalled. the last parameter accessed is displayed. PARAMETER RESET To reset all parameters to factory settings, refer to PARAMETERS/P99 Master Reset. PROGRAMMING SEQUENCE Typically, the CompuFlo III is programmed as follows: a) Referring to PARAMETERS, copy the selected parameter values to the spaces provided on the PROGRAMMING CHART fold out. b) Perform a MASTER RESET (P99). c) Access each parameter ( in sequence from P0) and enter the parameter values from the PROGRAMMING CHART. d) Perform a Zero and Span calibration (refer to CALIBRATION) e) Perform Span Adjust (P8) or Factoring (P9) procedures, as required. Remember to copy any parameter value alterations onto the PROGRAMMING CHART for future reference. QUICK START PROCEDURE The Quick Start Procedure describes the minimum start up, programming, and calibration requirements of the CompuFlo III, to obtain successful RUN mode operation for most applications. If desired, refer to APPENDICES/Quick Start. Parameters which are not included in the procedure may be programmed after the RUN mode is entered. I ENTER 2 ENTER PAR PL-368 5 – 3

accuracy. Normally, a Zero calibration is performed first, followed by a Span calibration. When the CompuFlo III is first commissioned, several Zero and Span calibrations are normally performed to verify the calibration results are repeatable. A Zero or Span calibration (in progress) may be aborted by . INITIAL CALIBRATION REFERENCES The first calibration performed, establishes the Initial Zero and Initial Span calibration references. Subsequent Zero and Span calibration results are compared to these references. The maximum acceptable deviation between an Initial Calibration Reference and a subsequent calibration result is 12.0% of span. Otherwise, [ZERO OUT OF RANGE] or [SPAN OUT OF RANGE] is displayed in the AUX 2 field. While a calibration in progress is establishing an initial calibration reference, the dynamic count value is displayed in the VALUE field. Otherwise, the dynamic rate value is displayed. The initial calibration references may be reset. Refer to Parameters/P77 Initial Zero Reset and P88 Initial Span Reset. Both initial calibration references (along with other programming) are erased by a Master Reset (P99). VALUE 150% 100% RATE 0% -50% CALIB UNITS RATE BAR GRAPH MULTISPAN FEATURE ECAL AUX 1 AUX 2 CYCLE CLEAR PL-368 6 – 1

material flow or Test Weight applied to the flowmeter... [ZERO] is displayed in the FEATURE field. The current Zero counts are displayed in the VALUE field. [ENTER: CALIBRATE MODE] is displayed in the AUX 2 field. to initiate the calibration. [CALIB] is displayed in the CALIB field and [ZERO IN PROGRESS] is displayed in the AUX 2 field. The time required to complete the calibration (and calibration accuracy) is dependent upon the Calibration Duration (Refer to Parameters/P30 Calibration Duration). The number of full calibration cycles remaining until completion, is displayed in the CYCLE field. When complete, the deviation from the last Zero calibration is displayed in the VALUE field, as a percent of span. to accept the new calibration. Otherwise, investigate the reason for the deviation and perform the Zero calibration again. SPAN The simulated material flow provided by the Test Weight (or number of Test Weights) is calculated and stored in memory as a Span count. (Refer to Alternate Test References, if a Test Weight is not used.) With no material flow or Test Weight applied to the flowmeter... [SPAN] is displayed in the FEATURE field. The current Span counts are displayed in the VALUE field. With [CALIB] displayed in the CALIB field, apply the Test Weight to the flowmeter (as described in the flowmeter manual). If [CALIB] is not displayed, respond to the CompuFlo III display prompts until this indicator is obtained, before applying the Test Weight. to initiate the calibration. The time required to complete the calibration (and calibration accuracy) is dependent upon the Calibration Duration (Refer to Parameters/P30 Calibration Duration). The number of full calibration cycles remaining until completion, is displayed in the CYCLE field. When complete, the deviation from the last Span calibration, is displayed in the VALUE field, as a percent of span. to accept the new calibration. Otherwise, investigate the reason for the deviation and perform the Span calibration again. CALIBRATION ACCURACY With the Initial Zero and Initial Span calibration complete, RUN mode operation is possible, however greater calibration accuracy may be required. The Test Reference value (P7) is an approximation, based on typical material flowrate characteristics. To adjust the Span calibration to suit the actual material flow characteristics encountered, perform a material test. (Refer to Parameters/P8 Span Adjust). The Test Reference value is automatically adjusted so the Test Weight will accurately simulate material flow during future Span calibrations. The CompuFlo III is now ready to be put into service, (refer to Operation). SPAN ENTER ENTER ENTER ENTER ZERO PL-368 6 – 2

If the Auto Zero feature is desired, provide a dry contact input to the CompuFlo III terminals TB1-34 and TB1-37. The contact may be activated by a material feed controlling device such as a motor control, material control gate, or valve. The contact must be closed when the material feed is stopped. When the contact is closed, and material flow has stopped (within 4% of span from the current zero reference) [AUTO ZERO IN PROGRESS] is displayed in the AUX 2 field. The time required for completion is dependent upon Calibration Duration (P30). The number of full calibration cycles remaining until completion is displayed in the CYCLE field. When complete, the Auto Zero is compared to the last operator Zero. If the Auto Zero is within 2% of span from the last operator zero, the CompuFlo III briefly displays [CALIBRATION COMPLETE] in the AUX 2 field and the deviation from the current zero reference in the VALUE field. The Auto Zero is automatically accepted and RUN mode operation continues. Otherwise, the Auto Zero results are rejected, and operation continues with the previous zero reference. LOCKOUT MODE In this mode, parameters may be accessed for viewing. However, if a parameter value alteration is attempted, the alteration is not permitted and [CERTIFICATION LOCKOUT] is displayed in the AUX 2 field. To activate the lockout mode, close SW1 contact 6 (SW1-6) after the CompuFlo III is programmed and calibrated. The maximum acceptable deviation between the last Zero performed by the operator (before closing this contact) and any subsequent Zero, is limited to 2% of span. Span calibrations are not permitted in this mode. ON-LINE SPAN CALIBRATION The On-Line Calibration feature may be used to routinely check (and adjust if necessary) the Span calibration in the RUN mode, without interrupting the material flow. Install a weigh bin (bin or silo equipped to provide a 4-20 mA output proportional to weight) preceding the flowmeter material infeed. Connect the weigh bin output to the CompuFlo III TB1-18,19 terminals. Install a material feed control device, preceding the weigh bin. Calibrate the CompuFlo III for the weigh bin 4-20 mA input (P27). Access On-Line Parameter Selection (P28) to enter the weigh bin: reference weight , max limit, high limit, and low limit setpoints. Assign a relay to the On-Line Calibration function, P51=2 (Relay 1) or P52=2 (Relay 2). Connect the assigned relay contacts to the weigh bin material feed control device, such that when the On-Line relay is energized, the weigh bin material feed is stopped. When the On-Line Calibration is activated (P29), normal operation continues until the weigh bin fills to the max limit (e.g. 90%). While filling, the percent full is displayed in the VALUE field. When the max limit is reached, the relay assigned the On-Line function, energizes to stop the weigh bin material feed. High (e.g. 80%) reference weight Low (e.g. 30 %) feeder material flow Max. (e.g. 90%) PL-368 6 – 3

limit (e.g 80%) is reached. When the low limit (e.g. 30%) is reached, the totalizer is de-activated and the assigned relay de-energizes, thereby enabling the material feed to the weigh bin. The CompuFlo III On-Line material total is compared to the weight of material discharged from the weigh bin between the high and low limits (reference weight). The deviation between these values is displayed as a percent of span in the VALUE field. The On-Line calibration results may be accepted, or rejected. ALTERNATE TEST REFERENCES For most applications, a Test Weight is applied to the flowmeter, to simulate material flow for the Span calibration. Alternatively, the CompuFlo III internal reference (ECAL), may be used to simulate a flowmeter input for Span calibrations. ECAL is normally used when applying a Test Weight would be impractical or inconvenient (especially when the flowmeter is installed in a hazardous area). When a Test Weight is used exclusively, Test Reference selection (P20) is not required. When the ECAL reference is selected (P20=1), ECAL is automatically applied when a Span calibration or Factoring (P9) is activated, and removed when the process is complete or aborted. If a Test Weight and ECAL are used periodically, the appropriate Test Reference must be selected (P20) before a Span calibration (or Factoring) is performed. When the ECAL reference is on, [ECAL] is displayed in the ECAL field. ECAL CALIBRATION (INITIAL REFERENCE) With essential parameters (P0, P1,P2,P3,P7, and P21) programmed as required, select the ECAL Test Reference (P20=1). Access P7 again, [PARAMETER 7E] is displayed. (The "E" indicates the P7 value displayed is associated with the ECAL Test Reference.) Perform a Zero and Span calibration. (A Test Weight is not required as ECAL is automatically applied for Span calibrations when P20=1). To obtain an accurate ECAL/flowmeter signal correlation, perform a material test. Refer to Parameters/P8 Span Adjust. Upon the completion of the material test, the new ECAL Test Reference (P7E) value is automatically adjusted so ECAL will accurately simulate material flow during future Span calibrations. For best results, if the new P7E value is not between 50% to 100% of the Design Rate (P1) value, perform an ECAL Adjust. Refer to Parameters/P22 ECAL Adjust. ECAL CALIBRATION (ALTERNATE REFERENCE) After the CompuFlo III Span calibration is completed with a Test Weight, ECAL may be used for subsequent Span calibration checks. Using ECAL as a secondary reference is especially useful, when frequent Span calibration checks are required but using a Test Weight would be impractical. Select the ECAL Test Reference (P20=1). Adjust ECAL to the value desired (P22=2). Factor the adjusted ECAL reference to the current span (P22=2 or P9). After a primary reference (typically Test Weight) Span calibration deviation is accepted, Factor the secondary reference (typically ECAL) to the new span. Remember to select the appropriate Test Reference (P20) before performing a Span calibration or Factoring procedure. I PL-368 6 – 4

(V) indicates the parameter value may be viewed only. (E) indicates the parameter value is essential for basic operation. PARAMETERS P0 RATE UNITS (E) Defines the desired Rate display engineering units of measure. With SW1, contact 5 (SW1-5) in the open position (Imperial units): enter: 1 = short tons per hour (F)(T/h) 1 T/h = 2000 lb/h 2 = long tons per hour(LT/h) 1 LT/h = 2240 lb/h 3 = pounds per hour(lb/h) 4 = pounds per minute(lb/h) With (SW1-5) in the closed position (Metric units): enter: 1 = metric tonnes per hour (F)(t/h) 1 t/h = 1000 kg/h 2 = kilograms per hour(kg/h) 3 = kilograms per minute(kg/m) The SW1-5 position and the value of P0 should be set before any other programming. To alter the Rate Units of a programmed CompuFlo III, set SW1-5 as desired, perform a Reset (refer to Parameters / P99 Reset) and set P0 to the desired value. P1 RATE (E) Defines the rate of material flow (in P0 units) which will produce the full scale Rate output. (F=0.0000) enter: Design Rate, Range = 0.0001 to 99999 P2 LOCAL TOTAL (E) Defines the amount of material to be totalized, prior to initiating an internal totalizer (and Main / Sub Total display) update, (F = 1). The weight portion of the Rate Unit (P0) is assumed. enter: .0001 .001 .01 .1 1 10 100 1000 .0002 .002 .02 .2 2 20 200 2000 .0005 .005 .05 .5 5 50 500 5000 If [TOTAL REGISTRATION TOO LOW] is displayed, enter a higher value. 94/04/14 PL-368 7 – 1

Defines the amount of material totalized, prior to initiating a remote totalizer relay contact closure, (F = 1). The weight portion of the Rate Unit (P0) is assumed. The frequency of remote totalizer contact closures is dependent upon the material flowrate and the Remote Total value. When a remote totalizer is connected to TB1-48,49, refer to the totalizer manufacturers instructions to determine the maximum pulse frequency. Lower values increase and higher values decrease the relay contact closure frequency. enter: .0001 .001 .01 .1 1 10 100 1000 .0002 .002 .02 .2 2 20 200 2000 .0005 .005 .05 .5 5 50 500 5000 If [TOTAL REGISTRATION TOO LOW] is displayed, enter a higher value. P7 TEST REFERENCE (Test Rate) (E) Defines the simulated material flowrate represented by the Test Reference selected (P20) for the MultiSpan (P26) selected. This value is entered in design Rate (P0) units. If a value of 0 is entered, the system design Rate (P1) value is assumed. enter: Test Rate (refer to the associated flowmeter instruction manual for calculation instructions. F = 0 until P1 is set.) P8 SPAN ADJUST Adjusts the test reference calibration results to improve material flowrate measurement accuracy. % CHANGE - Calculate the deviation between the CompuFlo III Total and the actual material weight. A positive value reduces (negative increases) the Rate displayed. % Span Error = CompuFlo III Total - Actual Material Weight x 100 Actual Material Weight MATERIAL TEST - Alternatively, the automatic method may be used. Perform a material test as follows: a) With no material flow and the test reference (Test Weight, or ECAL) removed, b) Select the material test option, select the HOLD TOTAL or ADD TO TOTAL option press "ENTER" to activate the Material Test. c) Feed a sample of material through the flowmeter press "ENTER" to stop the Material Test. d) Enter the actual material sample weight. The Span deviation % is displayed. e) Press "ENTER" to complete, (or "CLEAR" to abort), the procedure. Span Adjust calibrations are improved with larger material samples. Run at the normal flowrate; which should exceed 50% of the design Rate (P1). A Span Adjust, utilizing either method, alters the span count of the Multispan number (P26) selected, and Test Reference (P7) value of the Test Reference selected (P-20). Copy the altered P7 value to the Programming Chart enter: 0 = Span Adjust not required (F) 1 = % change, (enter desired adjustment as a percent of span) 2 = material test, (enter the actual material weight) PL-368 7 – 2

After the CompuFlo III is calibrated utilizing a known Test Reference (e.g. Test Weight representing 20 T/h), the material flowrate represented by an unknown Test Reference (e.g. alternate Test Weight), may be established. This feature may also be used if Span calibrations performed with one Test Reference, tend to consistently provide greater accuracy than Span calibrations with another Test Reference. Factoring is not necessarily required after a Span Adjust (P8), as the Test Reference (P7) value of the Test Reference (P20) for the Multispan Number (P26) selected, is automatically factored by the CompuFlo III. After performing a Span calibration utilizing the known Test Reference (P20): a) With the material flow stopped, apply the unknown Test Reference. b) Select the Test Reference to be adjusted (P20). c) press "1","ENTER" and wait for the Calibration Duration (P30). When complete, d) copy the adjusted Test Reference (P7) value displayed, to the PROGRAMMING CHART. If [ZERO CALIBRATION REQUIRED] is displayed, perform a Zero calibration prior to re- attempting the factoring procedure. If a Zero calibration has been performed very recently, press "CLEAR","ENTER", and proceed. enter: 0 = Factoring not required (F) 1 = Factoring required (with material flow stopped, and selected test reference applied) P10 LOW TOTAL CUTOFF Defines the minimum material flowrate to be processed for Local Total values and Remote Total contact closures. Range = 0.0 to 100.0. This feature eliminates the totalizer activity which could occur due to flowmeter vibration or small amounts of air passing through the flowmeter, when material flow is stopped. With calibration complete, material flow stopped, and the Rate displayed, observe the highest display value. Enter the value as a percent of design Rate (P1). A value of 0 will permit the Total display to count up or down. Remote Total contact closures cease while the total counts down. The contact closures will resume when the Total display regains the amount by which it counted down. enter: desired value (F = 3.0) PL-368 7 – 3

Defines the level of damping to be applied to the Rate display. Range = 1 to 999 This may be used to stabilize a fluctuating rate display without affecting accuracy. Higher values provide more stabilization. Press "RUN" to instantly update the Rate display to the current rate. enter: desired value (F = 1) P14 RATE OUTPUT DAMPING Defines the level of damping to be applied to the Rate Output. Range = 1 to 999 This may be used to stabilize a fluctuating Rate Output without affecting accuracy. Higher values provide more stabilization. Rate Output Damping is disabled if the Rate Output Average (P15) feature is utilized. Press "RUN" to instantly update the Rate Output to the current rate. enter: desired value (F = 1) P15 RATE OUTPUT AVERAGE Defines the period in seconds between Rate Output updates. The value held, corresponds to the averaged Rate of the previous period. Range = 0 to 999. A value of 0 may be entered if Rate output averaging is not desired. enter: desired value (F = 0) P16 RATE BAR GRAPH ASSIGNMENT Defines the output value the Rate Bar Graph Display represents, as a percent of span. enter: 0 = Rate Output (P14) (F) 1 = undamped Rate 2 = Rate Display (P11) P17 RATE OUTPUT MIN Adjusts the Rate Output reference value for minimum material flowrate. Range = 0 to 4095. a) With Change Mode activated and mA meter in series with the load connected to TB1-20,21, b) Press "CLEAR" before keying in the estimated reference value, and pressing "ENTER". c) Repeat step b) as required to produce the desired minimum Rate Output. Briefly press "4" (increase by 10’s), or "8" (decrease by 1’s) to fine adjust the reference value, if necessary. enter: 0 = no adjustment required 1 = Activate Change Mode (F = 631, for 4.00 mA) PL-368 7 – 4

Adjusts the Rate Output reference value for maximum material flowrate. Range = 0 to 4095. a) With Change Mode activated and mA meter in series with the load connected to TB1-20,21, b) Press "CLEAR" before keying in the estimated reference value, and pressing "ENTER". c) Repeat step b) as required to produce the desired maximum Rate Output. Briefly press "4" (increase by 10’s), or "8" (decrease by 1’s) to fine adjust the reference value, if necessary. enter: 0 = no adjustment required 1 = Activate Change Mode (F = 3160, for 20.00 mA) P20 TEST REFERENCE SELECTION Defines the type of test reference selected to represent a material flowrate. The test reference selected is indicated when the following parameters are accessed: OPTION DESCRIPTION TEST REFERENCE (P7) SPAN ADJUST (P8) FACTORING P9 0 Test Weight [PARAMETER 7] [PARAMETER 8] [PARAMETER 9] 1 ECAL [PARAMETER 7E] [PARAMETER 8E] [PARAMETER 9E] When P20 = 1, ECAL is automatically applied whenever a Span calibration or Factoring procedure is activated, and removed when the procedure is complete. Refer to Calibration \ Alternate Test References for ECAL span calibration instructions. enter: 0 = rate (F)(test weight) 1 = ECAL (electronic reference) P21 SENSOR TYPE Defines the type and number of flowmeter transducing elements utilized. enter: 0 = LVDT (linear variable differential transformer),(F) 1 = 1 load cell 2 = 2 load cells PL-368 7 – 5

Refer to Calibration / Alternate Test References for ECAL Span calibration instructions. ECAL Adjust cannot be accessed unless the ECAL Test Reference (P20) is selected. ECAL is adjusted in the RUN mode with no material flow or Test Weight applied to the flowmeter. When the Adjust option is selected, the simulated flowmeter input is applied to the CompuFlo III. Record all totalizer values before and after adjusting ECAL. To adjust ECAL : a) Enter the RUN mode before accessing P22 and selecting the adjust option. b) Press "CLEAR" before keying in the estimated reference value, (range = 0 to 4095) and pressing "ENTER". If Span calibration already exists, entering 0 automatically adjusts ECAL to 100% of the current span. c) Repeat step b) as required while observing the Rate Bar Graph. d) Briefly press "4" (increase by 10’s) or "8" (decrease by 1’s) to fine adjust the reference value, if necessary. e) When the Rate Bar Graph indicates the desired simulated Rate, press "ENTER" f) Press "ENTER" again to Factor ECAL to the current span and complete the adjustment. enter : 0 = ECAL off, (if P20 = 1, ECAL will automatically be applied when a Span calibration or Factoring process is activated, and removed when the process is complete. 1 = ECAL on, (ECAL will be held on except while a Zero calibration is in progress.) 2 = ECAL adjust (adjust as desired, F=2000 when P21=0, 200 when P21=1 or 2). P25 LINEARIZER Provides compensation for repeatable non-linear material flow characteristics. If the material flowrate through the flowmeter is relatively constant during normal operation (except for a few moments during start up and shut down) linearization should not be required. In rare cases, electronic linearization may be required if the process monitored demands high accuracy over a wide range of flowrates. If the flowmeter linearity seems to vary (beyond acceptable limits) at various material flowrates: 1) Perform a new Zero and Span calibration (as close as possible to 100% of P1 Rate) and a Span Adjust (P8). 2) Apply various Test Weights to the flowmeter to verify mechanical linearity, Non-linear operation with Test Weights indicates a mechanical flowmeter problem. Investgate and correct. 3) Referring to the associated flowmeter manual(s), ensure all flowmeter application recommendations were followed. (If possible, modify the feeder or chute work as recommended). PL-368 7 – 6

a) With material flow stopped, reset the Sub Total. b) Run a batch of material (larger is better) through the flowmeter, maintaining a constant flowrate. c) Record the batch Sub Total d) Weigh the material batch (if the actual batch weight is not already known). If for every flowrate tested, the actual batch weight is equal (or within the accuracy requirements) to the displayed Sub Total, the actual flowrate to measured flowrate relationship is linear. Otherwise, enter the % compensation required for each flowrate (automatically selected). % Compensation = Actual Batch Weight - Sub Total x 100 Sub Total Turn the linearizer on, and repeat steps a) to d). Adjust the Point 1, 2, and 3 flowrates and % compensation values as required until the desired results are obtained. The linearizer values are applied to any Multispan (P26) selected. enter: 0 = off 1 = on 2 = adjust, enter: point 1 flowrate (F=25% of (P1) Rate) point 1 adjustment (F=0%) point 2 flowrate (F=50% of (P1) Rate) point 2 adjustment (F=0%) point 3 flowrate (F=75% of (P1) Rate) point 3 adjustment (F=0%) P26 MULTISPAN Defines the Span calibration result to be used for subsequent measurements. Range = 0 to 8. This feature may be used to store the Span calibration associated with a number of different material types, flow characteristics, particle sizes, etc. To perform a Span calibration for a specific operating condition: a) Select the Multispan number to be associated with the current operating condition. b) Enter the Test Reference value (P7) for the Test Reference to be used (P20). c) Perform a Zero and Span calibration. d) Perform a Span Adjust (P8) or Factoring (P9), as required. To recall the calibration result (when the associated operating condition is re-encountered), select the appropriate Multispan number. The Multispan number may be selected by providing one or more temporary or permanent closed contact(s) between the TB1 COM (e.g. TB1-37) and the following TB1 terminals: PL-368 7 – 7

C= contact closed For convenience, the Multispan number selection may be provided by a BCD switch connected to the appropriate TB1-38,39,40,41, and COM contacts. Alternatively, the Multispan number may be selected via the keypad. If "0" is entered, the MULTISPAN field of the display is blank and Multispan 1 is utilized. enter: desired value, (TB1-38,39,40, and 41 contacts must be open), (F = 0). P27 ON-LINE: INPUT CALIBRATION Calibrates the CompuFlo III for the Zero and Span mA input from the bin weighing system. These values represent the empty and full weight of the On-line calibration weigh bin. Range = 0.000 to 25.00 enter: 0 = On-line calibration not required (F) 1 = Zero calibration (with weigh bin empty, press "ENTER" when the display value is stable.) 2 = Span calibration (with weigh bin full, press "ENTER" when the display value is stable.) P28 ON-LINE: PARAMETER SELECTION Defines the actual material weights associated with the On-line calibration. The reference weight is the actual weight of material contained in the weigh bin between the high and low limits. Enter the reference weight value in the weight portion of the Rate Units (P0) selected. Enter the max, high, and low limits as a percent of full weigh bin : Refer to Calibration / On-Line Span Calibration for complete calibration instructions. enter : reference weight, range = 0.000 to 99999 (F = 0) max limit, (material weight required to stop material feed). Range = 0.000 to 100.0, (F = 0) high limit, (material weight required to activate totalizer). Range = 0.000 to 100.0 (F = 0) low limit, (material weight required to de-activate totalizer). Range = 0.000 to 100.0 (F = 0) 93/12/01 MULTISPAN TB1 TERMINALS CONNECTED TO COM NUMBER 41 40 39 38 1 O O O C 2 O O C O 3 O O C C 4 O C O O 5 O C O C 6 O C C O 7 O C C C 8 C O O O PL-368 7 – 8

Upon completion, the On-line calibration may be accepted, or rejected. Refer to Calibration / On-Line Span Calibration for complete instructions. enter: 0 = On-Line calibration not required (F) 1 = Activate On-Line calibration P30 CALIBRATION DURATION Defines the number of 10 second time periods the CompuFlo III will utilize to perform a Zero or Span calibration, Factoring (P9), or Verification Totalizer (P31) operation. Range = 0.01 to 99 A low value reduces calibration time, while a high value increases calibration accuracy. enter: desired value, (F = 1) P31 VERIFICATION TOTALIZER Activates a secondary internal totalizer which totals the amount of material conveyed during the Calibration Duration (P30). This feature may be used to verify calibration accuracy from the RUN mode without stopping material flow. The amount of material totalized by the verification totalizer may be included or excluded from the totalizer counts. enter: 0 = verification totalizer off (F) 1 = do not totalize material during the verification. 2 = totalize material during the verification. P32 VERIFICATION TOTALIZER RESOLUTION Defines the amount of material weight to be measured, prior to initiating a verification totalizer update. The weight portion of the Rate Unit (P0) is assumed. enter: 0 = same as the Local Total (P2) value.(F) 1 = 1/10 of the Local Total (P2) value. PL-368 7 – 9

The baud rate must be set to the value required by the external device(s) connected to the PORT1 (TB1) current loop or RS-232C communication connections. enter: 300 1200 2400 9600 (F) P41 DATA TRANSMIT INTERVAL Defines the time lapse in minutes between unsolicited data message transmissions. Range = 0 to 99999 The Data Transmit Interval may be adjusted as required to control the level of message traffic between the CompuFlo III and the external device(s) connected to the PORT 1 and/or PORT 2 bipolar current loop or RS-232C communication connections. If a value greater than 50,000 is entered, the data message (P42) is transmitted only when the TB1-35,37 contacts are closed. enter: desired value, (F = 30) P42 DATA MESSAGE Defines the ASCII message to be transmitted after every Data Transmit Interval (P41) or when TB1-35,37 contacts are closed. The current time and date are transmitted with each message. The SYSTEM message includes the value of parameters P0,1,2,3,7, and 21. enter: 0 = no message (F) 1 = RATE 2 = MAIN TOTAL 5 = RATE and MAIN TOTAL 9 = SYSTEM P43 SERIAL PRINTER Sets the communication mode to suit a serial printer. enter: 0 = off (F) 1 = on (SW2-7 must be closed for PORT 2/printer communication) PL-368 7 – 10

If the Rate Alarm function is selected, the High Limit, Low Limit, and Deadband values are entered as a percent of span. The High Limit is the high alarm set point value which will cause the relay to de-energize. If a high limit is not required, set the high limit to 0. The Low Limit is the low alarm set point value which will cause the relay to de-energize. If a low limit is not required, set the low limit to 0. The Deadband is the amount which the dynamic Rate must exceed the low limit and/or fall below the high limit before the relay energizes. The deadband value must be less than the difference between the high and low limit setpoints. If the On-line calibration function is selected, the Max Limit and Low Limit values are set by On-line: Parameter Selection (P28). When the Max Limit setpoint value is reached the relay energizes and remains energized until the Low Limit setpoint value is reached. enter: 0 = Relay 1 off (F) (always de-energized) 1 = RATE 2 = ON-LINE If the Rate function was selected, the High Limit may now be set. enter: desired High Limit value, (Range = 0.000 to 100.0, F = 98), advances to Low Limit desired Low Limit value, (Range = 0.000 to 100.0, F = 35), advances to Deadband desired Deadband value, (Range = 0.000 to 100.0, F = 5) P52 RELAY 2 Defines the operation of Relay 2 as a Rate Alarm or On-Line calibration prefeed control. If the Rate Alarm function is selected, the High Limit, Low Limit, and Deadband values must be entered as a percent of span. The High Limit is the high alarm set point value which will cause the relay to de-energize. If a high limit is not required, set the high limit to 0. The Low Limit is the low alarm set point value which will cause the relay to de-energize. If a low limit is not required, set the low limit to 0. The Deadband is the amount which the dynamic value must exceed the low limit and/or fall below the high limit before the relay energizes. The deadband value must be less than the difference between the high and low limit setpoints. If the On-line calibration function is selected, the Max Limit and Low Limit values are set by On-line: Parameter Selection (P28). When the Max Limit setpoint value is reached the relay energizes and remains energized until the Low Limit setpoint value is reached. enter: 0 = Relay 1 off (F) (always de-energized) 1 = RATE 2 = ON-LINE PL-368 7 – 11

enter: desired High Limit value, (Range = 0.000 to 100.0, F = 98), advances to Low Limit desired Low Limit value, (Range = 0.000 to 100.0, F = 35), advances to Deadband desired Deadband value, (Range = 0.000 to 100.0, F = 5) P55 100% TEST REFERENCE (V) Displays the design Rate (P1) value. P60 SOFTWARE REVISION (V) Displays the revision number of the software program stored in EPROM 1. P61 MEMORY TEST (V) Performs a test on the EPROM 1 memory. Upon completion, [CHECKSUM CORRECT] is displayed to indicate a successful test. P63 TOTALIZER CONTACT DURATION Defines the duration of the remote totalizer relay contact closure in seconds. Range = 0.025 to 8.323 This value is automatically set, based on the Rate (P1) and Remote Total (P3) values entered. If necessary, adjust this value to provide the duration required by the device connected to TB1-51,52. An entered value is automatically adjusted to the next higher value permitted. If the value entered is too high, [TOTAL REGISTRATION TOO LOW] will be displayed. Increase the Remote Total (P3) value. When 0 is entered, the system selected value is entered. enter: desired value (F = 1, until P1 and P3 values are entered) P64 ZERO RECORD (V) Displays the number of operator initiated Zero calibrations performed since the last Master Reset (P99) or Initial Zero Reset. (F = 0). P65 SPAN RECORD (V) Displays the number of operator initiated Span calibrations performed since the last Master Reset (P99) or Initial Span Reset (P88). (F = 0). PL-368 7 – 12

This feature may be utilized to ensure the programming and/or calibration is not inadvertently altered. Access to all RUN mode displays and the P66 value is permitted at all Security levels. When a security level is selected, Security is not invoked until the RUN mode is entered. From the RUN mode, accessing P66 disables Security until the RUN mode is entered again. enter: 0 = full access permitted (F) 1 = parameter values secured 2 = parameter and Main Total display values secured. 3 = parameter values, Zero and Span calibrations secured. 4 = parameter and Main Total display values, Zero and Span calibrations secured. P70 CLOCK/CALENDAR Defines the current Time and Date, to be maintained by the internal clock. enter: desired value, (Hours, range = 0 to 23, advances to minutes), desired value, (Minutes, range = 0 to 59, advances to day), desired value, (Day, range = 1 to 31, advances to month), desired value, (Month, range = 1 to 12, advances to year), desired value, (Year, range = 00 to 99, returns to hours) P71 TIME (V) Displays time in twenty-four hour format, (HH:MM). P72 DATE (V) Displays date in YY/MM/DD format. P77 INITIAL ZERO RESET Performs a Zero Calibration to establish the new Initial Zero count value. This feature is normally used in response to the [ZERO OUT OF RANGE] message, when the cause of the deviation is not otherwise correctable. This condition could occur as the result of an intended change in the Design Parameter values or a mechanical change to the flowmeter assembly. enter: 0 = not required (F) 1 = Initial Zero Reset P80 V/F CONVERTER OUTPUT (V) Displays a reference count proportional to the input level from the flowmeter. Range = 0 to 131,000. This feature is normally used to verify the integrity of the flowmeter load sensors and cable(s). PL-368 7 – 13

Displays the input from the load cell connected to TB1-1,2 in mV. Range = 0.00 to 50.00 Access to this parameter may only be gained when SENSOR TYPE (P21) is set to 2. This feature is normally used to verify the integrity of the load cell after initial installation or subsequent replacement. P82 LOAD CELL B (V) Displays the input from the load cell connected to TB1-3,4 in mV. Range = 0.00 to 50.00 Access to this parameter is gained when SENSOR TYPE (P21) is set to any value greater than 0. This feature is normally used to verify the integrity of the load cell after initial installation or subsequent replacement. P85 V/F CONVERTER INPUT (V) Displays the sum of the amplified load sensor (P21) input voltage(s). Range = -1.00 to 4.00. P86 ON-LINE CALIBRATION (Input Current) (V) Displays the CompuFlo III TB1-18,19 mA input from the bin weighing system. Range = 0.00 to 25.00. P88 INITIAL SPAN RESET Performs a Span calibration to establish a new Initial Span count value. This feature is normally used in response to the [SPAN OUT OF RANGE] message, when the cause of the deviation is not otherwise correctable. This condition could occur as the result of an intended change in the Design Parameter values or a mechanical change to the flowmeter assembly. enter: 0 = not required (F) 1 = Initial Span Reset P90 BALANCING PROCEDURE Initiates the Load Cell Balancing procedure. This procedure is only required if the connected flowmeter utilizes two load cell sensing elements and is equipped with two Test Weight suspension points. This parameter may only be accessed when Sensor Type is set for 2 load cells (P21 = 2). Prior to initial calibration or following a load cell replacement, the load cell balancing procedure should be performed. When the flowmeter load cell signals are balanced, variable material flow patterns have less effect on flowmeter measurements. When the load cell balancing procedure is initiated, P91 through P95 must be accessed in sequence. Direct access to these parameters is not permitted. PL-368 7 – 14

Run mode. enter: 0 = load cell balancing not required (F) 1 = balancing procedure required, (press "1", "ENTER" to advance to P91) P91 POS B LC (A+B) (V) Displays the summed load cell input counts. Apply the Test Weight to a flowmeter Test Weight suspension point. (Refer to the flowmeter instruction manual for Test Weight application instructions). enter: the displayed value (when stable) to advance to P92. P92 POS B LC (B) (V) Displays the load cell input counts of one load cell. Ensure the Test Weight (as applied for P91) is not moved or otherwise disturbed. enter: the displayed value to advance to P93. P93 POS A LC (B) (V) Displays the load cell input counts of one load cell. Move the Test Weight to the other flowmeter Test Weight suspension point. enter: the displayed value (when stable) to advance to P94. P94 POS A LC (A+B) (V) Displays the summed load cell input counts. Ensure the Test Weight (as applied for P93) is not moved or otherwise disturbed. enter: the displayed value to advance to P95. P95 LOAD CELL BALANCE (V) Displays the count value, which when entered, will balance the load cell signals. enter: the displayed value to complete the load cell balance. PL-368 7 – 15

This feature clears memory locations and restores parameter values to their original factory settings. The implementation of a Reset necessitates CompuFlo III reprogramming and recalibration. Neither Reset Level affects the Clock/Calendar settings. A Partial Reset maintains the previous, P17, P18, P20, P21, P22, P27, P40, P41, P42, P43 and load cell balancing settings. enter: 0 = reset not required (F) 1 = Partial Reset 9 = Master Reset P100 PARAMETER LIST (V) Displays parameter names in groups of 10. Pressing "ENTER" advances the display to the next group. This parameter is not automatically scrolled and therefore must be accessed directly. I PL-368 7 – 16

P0 RATE UNITS [ ] IMP: 1(T/h),2(LT/h),3(lb/h),4(lb/min) Metric: 1(t/h),2(kg/h),3(kg/min) P1 RATE [ ] 0.0001 to 99999 (F = 0.000) P2 LOCAL TOTAL [ ] 1,2,or 5 x .0001 .001,.01,.1,1,10,100,or 1000 P3 REMOTE TOTAL [ ] 1,2,or 5 x .0001 .001,.01,.1,1,10,100,or 1000 P7 TEST REFERENCE [ ] 0.0001 to 99999 (F = 0) P8 SPAN ADJUST [ ] 0 (off), 1 (%change), 2 (material test) P9 FACTORING [ ] 0 (off), 1(factor test reference) P10 LOW TOTAL CUTOFF [ ] 0.0 to 100.0 (F=3.00) P11 RATE DISPLAY DAMPING [ ] 1 to 999 P14 RATE OUTPUT DAMPING [ ] 1 to 999 P15 RATE OUTPUT AVERAGE [ ] 0 to 99999 P16 RATE BAR GRAPH ASSIGNMENT [ ] 0 (Rate Output, P14), 1 (undamped Rate), 2 (Rate Display, P11) P17 RATE OUTPUT MIN [ ] 0 to 4095 (F = 631) P18 RATE OUTPUT MAX [ ] 0 to 4095 (F = 3160) P20 TEST REFERENCE SELECT [ ] 0 (test weight), 1 (ECAL) P21 SENSOR TYPE [ ] 0 (LVDT), 1 (1 load cell), 2 (2 load cells) P22 ECAL ADJUST [ ] 0 (off), 1 (on), 2 (adjust), [ ] count P25 LINEARIZER [ ] 0 (off), 1 (on), 2 (adjust) [ ](pt 1),[ ](pt 2),[ ](pt 3) RATE [ ](pt 1),[ ](pt 2),[ ](pt 3) % COMP P26 MULTISPAN [ ] 0 to 8 (F = 0) P27 ON-LINE:INPUT CALIB. [ ] 0 (off), 1 (zero), 2 (span) P28 ON-LINE:PARAMETER SELECT [ ] (ref weight)[ ],(max)[ ],(hi)[ ],(lo)[ ] P29 ON-LINE CALIBRATION [ ] 0 (off), 1 (activate) P30 CALIBRATION DURATION [ ] 0.1 to 99 (F = 1) P31 VERIFICATION TOTAL [ ] 0 (off), 1 (HOLD TOTAL), 2 (add to Total) P32 VERIFICATION TOTAL RES [ ] 0 (same as P2), 1 (P2 x 1/10) P40 BAUD RATE [ ] 300, 1200, 2400, 9600 P41 DATA TRANSMIT INTERVAL [ ] 0 to 99999 (F = 30) P42 DATA MESSAGE [ ] 0 (off),1 (Rate),2 (Total),5 (Rate and Total),9 (System) P43 SERIAL PRINTER [ ] 0 (off), 1 (on) P51 RELAY 1 [ ] 0 (off), 1 (Rate), 2 (On-line) [ ](hi),[ ](lo),[ ] (deadband) in % P52 RELAY 2 [ ] 0 (off), 1 (Rate), 2 (On-line) [ ](hi),[ ](lo),[ ] (deadband) in % P55 100% TEST REFERENCE [ ] 0.0001 to 99999 (F = Rate (P1), display only) P60 SOFTWARE REVISION [ ] 1.00 to 99.99 (display only) P61 MEMORY TEST [ ] Pass or Fail, (display only) P63 TOTALIZER CONTACT DUR [ ] 0.025 to 8.323 seconds (F = 1 until P1 and P3 are set) P64 ZERO RECORD [ ] (display only) P65 SPAN RECORD [ ] (display only) P66 SECURITY LEVEL SELECT [ ] 0(off),1(P#’s),2(P#’s,Total),3(P#’s,Zero,Span),4(P#’s,Total,Zero,Span) P70 CLOCK/CALENDAR [ ] hrs(0-23),min(0-59),day(1-31),month(1-12),year(00-99) P71 TIME [ ] HH:MM display, (24 hour format) P72 DATE [ ] YY/MM/DD format P77 INITIAL ZERO RESET [ ] 0 (off), 1 (reset) P80 V/F CONVERTER OUTPUT [ ] 0 to 131,000 counts, (display only) P81 LOAD CELL A INPUT [ ] 0.00 to 50.00 mV, (display only) P82 LOAD CELL B INPUT [ ] 0.00 to 50.00 mV, (display only) P85 V/F CONVERTER INPUT [ ] -1.00 to 4.00 V, (display only) P86 ONLINE: MA INPUT [ ] 0 to 25.0 mA, (display only) P88 INITIAL SPAN RESET [ ] 0 (off), 1 (reset) P99 RESET [ ] 0 (off), 1 (Partial ), 9 (Master) P100 PARAMETER LIST [ ] 0 to 99 in groups of 10, (display only) PL-368 8 – 1

» the test reference should be removed from the flowmeter. » the totalizer(s) should be reset to zero. The CompuFlo III is now ready for service. Ensure the CompuFlo III is in the RUN mode. To enter the RUN mode, The CompuFlo III assumes the last RUN mode display accessed. If necessary, to display Rate. Open the material prefeed, ensuring the design Rate is not exceeded. to display the current material total. Observe the total value incrementing. A program of calibration checks should be performed frequently at first. The frequency of these checks may be reduced as time and experience dictate. All personnel should be instructed on the safe and proper operation of the CompuFlo III and be instructed when and if a calibration check should be performed, what level of zero and span deviation is acceptable, and when to reset the totalizer(s). If desired, a photocopy of the following page may be provided, to personnel responsible for CompuFlo III daily operation. ALT DISP ALT DISP RUN PL-368 9 – 1

When power is first applied, the CompuFlo III will automatically perform a series of tests for about 10 seconds and then resume operation in the last mode entered. The following procedures may be performed on a routine basis, as required. Access to the Zero and Span calibration, and Reset Total functions may be restricted. ZERO CALIBRATION CHECK Ensure the flowmeter test reference (Test Weight or ECAL) is removed. With no material flow, to initiate a zero calibration. When complete (time dependent on programming) the deviation from the last operator initiated zero calibration is displayed. if the zero deviation is acceptable. If the zero deviation is not acceptable, or if [ZERO OUT OF RANGE] is displayed, investigate the reason for the deviation, correct the condition, and try the zero calibration again. SPAN CALIBRATION CHECK If the following features were implemented during system programming, perform the following checks: FEATURE CHECK Test Reference Select (P20) Ensure the desired Test Reference is selected. Multispan Number (P26) Ensure the appropriate Multispan number is selected. Apply the flowmeter test reference (Test Weight or ECAL). With no material flow, to initiate a span calibration. When complete (time dependent on programming) the deviation from the last operator initiated span calibration is displayed. if the span deviation is acceptable. If the span deviation is not acceptable, or if [SPAN OUT OF RANGE] is displayed, investigate the reason for the deviation, correct the condition, and try the span calibration again. Remove the flowmeter test reference. RESET TOTAL If necessary, reset the CompuFlo III totalizer. to initiate a totalizer reset. to select the Main or Sub Total. to reset the selected Total display value to 0. Refer to the manufacturers instructions to reset the remote totalizer, if any. RUN (and then if necessary) to display Rate. Activate the material prefeed control device (if any) to begin running material through the flowmeter. to access the Total display, observe the amount of material run through the flowmeter since the last Total Reset. ALT DISP ALT DISP CLEAR ENTER SPAN ENTER RUN RESET TOTAL I ENTER ENTER ZERO ENTER PL-368 9 – 2

» Remote (Milltronics Terminal) » Host (IBM PC compatible computer or PLC) » Serial Printer The Bipolar Current Loop may be utilized for cable runs up to 1500 metres (5000 ft). If communication with an RS-232 device is required, the Milltronics BIC-II or CVCC may be used to convert the Bipolar Current Loop to RS-232. The BIC-II is also capable of Bipolar Current Loop to RS-422 conversion. The CompuFlo III RS-232 port may be connected directly to an RS-232 device, where the communication cable run is less than 15 m (50 ft). To set the Port 1 communication baud rate to suit the device connected, refer to PARAMETERS/P40. To set the Port 2 baud rate, refer to START UP/Hardware Set Up. customer’s computer CVCC or BIC II ( if required ) CompuFlo III serial printer customer’s computer* (*remote terminal emulation software available) OR remote terminal CVCC ( or BIC II ) PL-368 10 – 1

receive communication from the CompuFlo III PORT 1 or PORT 2 connection, SW2-6 of the remote terminal must be closed. Alternatively, a remote terminal emulation software package is available for IBM PC compatible computers supporting colour graphics (VGA). If the computer (supporting a parallel printer) is connected to PORT 1, (when P43=1) a printout containing the Data Message (P42) selected is initiated each time: » the Data Transmit Interval (P41) lapses » a dry contact is provided across CompuFlo III TB1-35 and COM (e.g. TB1-36). HOST COMMUNICATION Host communication permits up to 16 CompuFlo III’s (serially connected via PORT 1), to communicate with a computer or Programmable Logic Controller. Refer to Start Up\Hardware Set Up\Unit I.D. Code). In this mode, data acquisition and analysis is accomplished by a customer supplied software package. Refer to Protocol. SERIAL PRINTER COMMUNICATION Two modes of serial printer operation are available. The Port 1 mode (similar to previous Milltronics integrator versions) printout is initiated each time : » a dry contact is provided across pins 7 and 17 of the printer DP25 connector. » the Printer Test button is pressed. The printout contains the : time, date, total, and total engineering units. The Port 2 mode is compatible with any serial printer. Close the CompuFlo III SW2 contact 7 (SW2-7) and set the Data Transmit Interval (P41), Data Message (P42) and Serial Printer (P43) parameters as desired. Refer to Parameters. The printout, containing the Data Message selected, is initiated each time : » a dry contact is provided across the CompuFlo III TB1-35 and COM (e.g. TB1-36) » the Data Transmit Interval elapses. PL-368 10 – 2

messages. Each data field of a CompuFlo III message contains one or more bytes of ASCII binary code. Each byte contains: » 8 data bits » no parity bit » 1 stop bit DATA FIELD DESCRIPTIONS The following data fields are utilized in CompuFlo III host mode messages. somIdentifies the start of a message (STX), ASCII character = 02. DEVICE Identifies the CompuFlo III to which the message applies. The device number equals the Unit I.D. code, as set by SW1 contacts 1 - 4. ASCII characters = 00 to 15. MTIdentifies the message type transmitted, ASCII characters: 50 = material flow rate 53 = totalized material READING Contains the measurement value in the units of measure selected during CompuFlo III programming. The number of bytes in this data field will vary dependent upon the reading value. Up to 8 ASCII characters including the decimal point may be transmitted. UNITS Three ASCII characters identify the totalizer engineering units (MT = 53 only). The first character is always a space. The remaining characters may be: t = Metric Tons LT = Long Tons T = Short Tons kg = Kilograms lb = Pounds EOM Identifies the end of a message (CR), ASCII character = 0D. +20 mA -20 mA 0 s 1 2 3 4 5 6 7 8 s t s n r t t t t t t a t d d h h h h h o r p t PL-368 10 – 3

som DEVICE MT eom Example: Data ASCII Example Field Character Description som 02 start of message DEVICE 01 for CompuFlo III # 1 MT 50 material flow rate request eom 0D end of message MESSAGE RESPONSES The CompuFlo III response to a flow rate (MT=50) message request will be in the following format. som DEVICE MT READING eom Example: Data ASCII Example Field Character Description som 02 start of message DEVICE 00 from CompuFlo III# 0 MT 50 material flow rate response READING 392.5 is 392.5 eom 0D end of message The response to a material total (MT=53) message request will be in the following format. som DEVICE MT READING UNITS eom Example: Data ASCII Example Field Character Description som 02 start of message DEVICE 00 from CompuFlo III# 0 MT 53 material total response READING 129.2 is 129.2 UNITS MT Metric Tonnes eom CR end of message I PL-368 10 – 4

PARAMETER PARAMETER PARAMETER PARAMETER NAME NUMBER NAME NUMBER Balancing Procedure P90 Parameter List P100 Baud Rate P40 Rate Bar Graph Assignment P16 Calibration Duration P30 Rate P1 Clock/Calendar P70 Rate Output Average P15 Converter Input (V/F) P83 Rate Output Max P18 Converter Output (V/F) P80 Rate Output Min P17 Damping, Rate Display P11 Rate Units P0 Damping, Rate Output P14 Record, Zero P64 Data Transmit Interval P41 Record, Span P65 Data Message P42 Relay 1 P51 Date P72 Relay 2 P52 ECAL Adjust P22 Security P66 Factoring P9 Sensor Type P21 Initial Zero Reset P77 Serial Printer P43 Initial Span Reset P88 Software Revision P60 Linearizer P25 Span Adjust P8 Load Cell Balance P95 Test, Memory P61 Load Cell Input, A P81 Test Reference P7 Load Cell Input, B P82 Test Reference 100% P55 Master Reset P99 Test Reference Selection P20 Multispan P26 Time P71 On-line: Calibration P29 Total Contact Duration P63 On-line: Calibration mA P86 Total, Local P2 On-line: Input Calibration P27 Total, Low Cutoff P10 On-line: Parameter Selection P28 Total, Remote P3 POS A LC (A+B) P94 Total, Verification P31 POS A LC (B) P93 Total, Verification Resolution P32 POS B LC (A+B) P91 POS B LC (B) P92 PL-368 11 – 1

MAINTENANCE The CompuFlo III requires no maintenance. However a program of periodic preventative maintenance should be initiated. This should include regular inspection, general cleaning and good housekeeping practices. Enclosures and printed circuit boards should be cleaned only when the power is disconnected at the main breaker. The use of a vacuum cleaner to remove foreign material dislodged with a clean dry paint brush is recommended. Check all electrical connections for signs of corrosion and/or electrical arcing. The CompuFlo III memory backup and calibrator batteries should be replaced annually. The 3.6 Volt lithium battery (located on the mother board top right corner) should only be replaced while the CompuFlo III power is ON. The 9 Volt calibrator battery is located on the back of the CompuFlo III door. SPARE PARTS The following list describes the CompuFlo III components which may be ordered as a spare part. The ITEM # refers to the number which should be included on the purchase order to identify the part required. DESCRIPTION ITEM # Battery, Lithium, 3.6 V, AA, (Memory) 20200031 Battery, Alkaline, 9 Volt, (Calibrator) 20200025 Enclosure Bottom Plate 24650116 Fuse, 0.75A, 250V, Slo-Blo, CSA, (Main) 22550112 For Remote Terminal ordering information, contact Milltronics or your distributor. PL-368 11 – 2

DISPLAY MESSAGE DESCRIPTION [ABORTED] The activated process or procedure was not completed correctly (or before "CLEAR" was pressed). Retry the feature attempted. [AUTO ZERO ABORTED] The Auto Zero was more than 2% of span from the last operator Zero before SW1-6 was closed. Refer to Calibration/Lockout Mode. [AUTO ZERO LIMIT EXCEEDED] The Auto Zero was more than 2% of span from the last operator Zero. Refer to Calibration/Auto Zero. [CALIBRATION ABORTED] "CLEAR" was pressed before the activated calibration was accepted. [CERTIFICATION LOCKOUT] Attempted access to a function which is restricted during operation in the Lockout mode. Refer to Start up/Hardware Set Up/Lockout. [CHECKSUM ERROR] Integrator failed Memory Test. Refer to Parameters/P61 Memory Test. [ENTRY ERROR] Invalid parameter selection or alteration. Refer to Parameters. [PARAMETERS NOT ENTERED] A calibration or run mode operation was attempted before essential parameter values were entered. Refer to Parameters/P1,P2,P3, and P7. [REMOTE TOTAL SATURATION] The systems totalization capabilities were exceeded; the Remote Total counts are incorrect. Refer to [TOTAL REGISTRATION TOO LOW]. [SECURITY LOCKOUT] Attempted access to a function which is restricted by Security (P66). Refer to Parameters/P66 Security. [SPAN CALIB REQUIRED] Attempted RUN mode operation prior to accepting an Initial Span calibration. Refer to Calibration/Span. [SPAN ERROR] The attempted calibration (or adjustment) would have exceeded the systems span capabilities. Investigate and correct before retrying. [SPAN OUT OF RANGE] The attempted Span was greater than 12% of span from the Initial Span. Refer to Parameters/P88 Initial Span Reset. [TEST REFERENCE VALUE REQUIRED] A Test Reference value (P7) has not been entered for the current Test Reference selected (P20). Refer to Parameters. [TOTAL REGISTRATION TOO LOW] The value entered exceeds totalization capabilities Refer to Parameters/P2 Local Total, P3 Remote Total & P63 Contact Duration. [ZERO CALIB REQUIRED] Attempted RUN mode operation or Span calibration prior to accepting an initial Zero calibration. Refer to Calibration/Zero. [ZERO CALIB REQUIRED] Span calibration or Factoring (P9) procedure attempted from [OR PRESS CLEAR] the RUN mode. Press "CLEAR" only if a Zero has been performed recently. [ZERO OUT OF RANGE] The attempted Zero calibration was greater than 12% span from the Initial Zero reference. Refer to Parameters/P77 Initial Zero Reset. PL-368 11 – 3

possible degree of quality, reliability, and performance is achieved. The following listing indicates the probable cause, and proper course of action to be taken should the specified fault symptom occur. SYMPTOM CAUSE ACTION Display blank »Loss of power »check power wiring, jumpers, and fuse »check POWER switch is ON »check AC supply »check daughter board HD2-1,4 Will not complete a Zero or Span » Loss of input signal(s) » check P80 calibration » check sensor wiring » Wrong Design Parameter » check programming value(s) Calibration takes too long » Calibration Duration too long » reduce P30 value Zero calibration deviation drifts » Loose mechanical assembly » tighten all bolts and clamps » Sensing head not level » refer to flowmeter manual Span calibration deviation drifts » Loose mechanical assembly » tighten all bolts and clamps » Variable material flow patterns » refer to flowmeter and application guideline manuals Accuracy is not within » Test Reference doesn’t » perform a new Zero and Span limits desired limits represent true operating calibration, followed by a conditions Span Adjust (P8). » Calibration Duration too short » increase P30 value * » On-Line Calibration required » Refer to Calibration. * Perform a new Zero and Span calibration and a Span Adjust (P8), after the recommended action. For more trouble shooting information, refer to the flowmeter and application guideline instruction manuals. PL-368 11 – 4

MASTER RESET - Prepares the CompuFlo III for initial programming or complete reprogramming. Proceed to OPERATION if previous programming and calibration is to be retained. [PARAMETER 99 ] Master Reset parameter accessed. [PARAMETER ] is displayed after 10 seconds. RATE UNITS - Defines the desired Rate display units of measure. • [PARAMETER 0 ] Rate Units parameter accessed. with SW1-5* open with SW1-5* closed tons/hour (T/h) for tonnes/hour (t/h) long tons/hour (LT/h) for Kilograms/hour (kg/h) pounds/hour (lb/h) for Kilograms/minute (kg/min) pounds/min (lb/min) * Switch SW1-5 is located on the CompuFlo III mother board, (top left corner). DESIGN RATE - Defines the material flowrate which will produce the full scale Rate Output. [PARAMETER 1 ] Design Rate parameter accessed, key in flowrate value, to store the keyed in value in memory. LOCAL TOTAL - Defines the material weight (in P0 weight units) required for each Total display update. [PARAMETER 2 ] Local Total parameter accessed. Key in one of the following material weight values: 0.0001, 0.001, 0.01, 0.1, 1, 10, 100, 1000 0.0002, 0.002, 0.02, 0.2, 2, 20, 200, 2000 0.0005, 0.005, 0.05, 0.5, 5, 50, 500, 5000 to store the keyed in value in memory. ENTER 9 ENTER 2 0 ENTER ENTER ENTER ENTER 3 ENTER 4 ENTER 1 ENTER 2 ENTER 3 ENTER 1 9 9 PAR PAR ENTER ENTER ENTER Pl-368 11 – 5

[PARAMETER 3 ] Remote Total parameter accessed. Key in one of the following material weight values: 0.0001, 0.001, 0.01, 0.1, 1, 10, 100, 1000 0.0002, 0.002, 0.02, 0.2, 2, 20, 200, 2000 0.0005, 0.005, 0.05, 0.5, 5, 50, 500, 5000 to store the keyed in value in memory. TEST REFERENCE - Defines the simulated material flowrate (in P0 units) represented by the Test Weight. [PARAMETER 7 ] Test Reference parameter accessed. Key in the calculated value, (refer to the flowmeter manual for Test Weight calculation instructions) to store the keyed in value in memory. SENSOR TYPE - Identifies the type of input signal(s) from the flowmeter. [PARAMETER 21 ] Sensor Type parameter accessed. if an LVDT is connected, or if a single load cell is connected, or if dual load cells are connected. CALIBRATION - Prepares the CompuFlo III for operation. If [ZERO OUT OF RANGE] or [SPAN OUT OF RANGE] is displayed after a calibration attempt, refer to the PARAMETERS section for Initial Zero Reset (P77) and/or Initial Span Reset (P88) instructions. ZERO With no material flow or test weight(s) applied to the flowmeter, the zero count value from the last Zero calibration is displayed. to start the calibration, when complete the deviation from the last Zero is displayed. to accept the new Zero calibration results. ENTER ENTER ENTER ENTER ZERO ENTER ENTER 1 2 1 ENTER ENTER PAR 2 ENTER 0 ENTER Pl-368 11 – 6

the span count value from the last Span calibration is displayed. to start the calibration. When complete the deviation from the last Span is displayed. to accept the new Span calibration results. OPERATION Ensure the test weight is not applied to the flowmeter before opening the material feed. RATE & TOTAL DISPLAYS to enter the RUN mode. (if required) to obtain the Rate display. to obtain the Total display. (as required) to obtain the Main Total or Sub Total values. RESET TOTAL - Resets the Main or Sub Total value displayed. the Main or Sub Total value displayed is now 0. PERFORMANCE ENHANCEMENT For optimum accuracy, perform Zero and Span calibrations frequently. Read this manual thoroughly for details on all CompuFlo III features. A material test utilizing the Span Adjust (P8) parameter, is recommended. SPAN ENTER ENTER RUN ALT DISP ALT DISP RESET TOTAL ENTER CLEAR I Pl-368 11 – 7

330 mm ( 13" ) 101 mm ( 4" ) 435 mm ( 17.1" ) 406 mm ( 16" ) enclosure bottom plate ( for cable / conduit entrance ) 11 mm dia. ( 0.4" ) 4 places OUTLINE and MOUNTING FIG. 1 PL-368 12 – 1

SW 1 EPROM 2 calibrator battery memory/ clock battery voltage select jumper barrier jumpers Power switch main fuse display EPROM 1 K A K A 6 4 1 UP NO NC CW 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 + - + - RCV XMT SHLD RCV XMT ECHO COM 1 20 MILLTRONICS COMPUSCALE / 3/4 AMP SLOBLO MDL FUSE ML 51026331 PN 24751325-04 MADE IN CANADA PETERBOROUGH COMPUFLO DISPLAY DRIVER SN RS232 SW2 EPROM 2 TB2 COM FU1 ONTARIO COMM PORT 2 CURRENT STD HAZ’D HAZ’D STD FUSE MDL SLOBLO 1/4 AMP PIN 1 J2 FUSE J1 POWER EXC FUSE SENSOR SPEED FU2 COM TIME / DATE / MEMORY EPROM 1 SW1 2 2 2 3 1 3 ECAL ACOM4 N15V P15V N5V2 N8V P5V2 P8V P30VI P13V P18V P5V P24V N24V COMM PORT 1 MDL SLOBLO 1/4 AMP CURRENT RATE TB1 MA INSTRUCTION BOOK COMPUFLO I I I PL-368 COMPUSCALE I I I PL-367 LVDT 47 7 PIN 1 V LOAD OFF ON 10 PN 24751326-04 65 TOTAL BATTERY LITHIUM 3.6 VOLT ML 51026341 INSTRUCTION BOOK RATINGS BOOK FOR RELAY SEE INSTRUCTION SN PETERBOROUGH . ONTARIO MADE IN CANADA COMPUSCALE / COMPUFLO MILLTRONICS SELECT VOLTAGE 100VAC 115VAC 200VAC [ 50/60 HZ VA ] VAC OPERATION 100/115/200/230/ POSITION J1 FOR N L1 L2 GR TOTAL RELAYS R2 R1 SPANS 8 4 2 1 COM COM PRINT A.ZERO CONST COM SIG SPEED RS232 LVDT EXC SHLD COM RCV XMT RCV XMT RATE ONLN EXC COM -SIG SHLD LOADCELLS SEN SEN EXC EXC - - + + D C B A - + - + - + - + - + - + - + - + - + 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 230VAC SN T 1263957 MAIN TOTAL 150% 100% 50% 0% -50% SPAN No. (1-8):2 R1:RATE HI R2:RATE LO MILLTRONICS CALIBRATOR IV PN 24751327-01 ML 51026351 MADE IN CANADA PETERBOROUGH ONTARIO R3 Q2 Q1 D1 R2 C1 R1 LD1 U1 C2 C3 CR1 D2 RC1 B1 calibrator (door mount) display board SW 2 mother board 93/12/01 FIG. 2 PL-368 12 – 2

LVDT SINGLE LOAD CELL DUAL LOAD CELLS 1. Where a flowmeter must be installed in a hazardous area consult Milltronics or your distributor for wiring instructions. 2. Where the integrator to load cell flowmeter cable exceeds 150m (500 ft): A) remove jumpers from CompuFlo III, TB1 - 9,10 and TB1 - 11,12 B) run an additional shielded conductor to the junction box nearest the load cell(s) from: » CompuFlo III TB1 - 10 to loadcell(s) red » CompuFlo III TB1 - 11 to loadcell(s) black CompuFlo III TB1 CompuFlo III TB1 CompuFlo III TB1 FIG. 3 PL-368 12 – 3

POWER RATE OUTPUT 1. Ensure the CompuFlo III J1 position matches the power to be applied to TB1 - 51,52. 2. The Auto Zero contact must be closed when the material feed is stopped, if Auto Zero calibration is desired. AUTO ZERO Voltage Select prefeed activated dry contact Power Connection 100/115/200/230 V AC 65 VA CompuFlo III TB1 CompuFlo III TB1 FIG. 4 to mA input of device 750 Ω Max load PL-368 12 – 4

REMOTE TOTALIZER RELAY AC TOTALIZER DC TOTALIZER FIG. 5 Relay contacts are shown in de-energized condition. (Power OFF and Alarm Status) to alarm / control devices CompuFlo III TB1 48 49 R1 C1 R2 C2 * POWER SOURCE CompuScale III TB1 AC * Some totalizers have an internal power source. Shaded area recommended for inductive load (L) R1 = R2 = 10 to 30 Ω C1 = .01 to .1 mFd, 500 V C2 = .001 to .01 mFd, 500 V CompuFlo III TB1 48 49 + * POWER SOURCE CompuScale III TB1 DC CompuFlo III TB1 PL-368 12 – 5

CURRENT LOOP MULTIPLE CURRENT LOOP 1. Power may be disconnected from any CompuFlo III in a multiple current loop without affecting the communication of the other CompuFlo III’s. FIG.6 to device current loop connection CompuFlo III CompuFlo III to device current loop connection CompuFlo III to device RS-232 port CompuFlo III to device RS-232 port TX TX RX RX to RS-232 device CompuFlo III Unit I.D. # 00 CompuFlo III Unit I.D. # 01 CompuFlo III Unit I.D. # N (max N=15) CVCC or BIC II PL-368 12 – 6