Milltronics COMPUFLO III User manual

COMPUFLO III
FLOWMETER
INTEGRATOR
Instruction Manual
PL-368
March 1993
33453680
PRR 1.1

TABLE OF CONTENTS
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 StartUp 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 General 7 – 1
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

GENERAL INFORMATION
ABOUT THE COMPUFLO
The Milltronics CompuFlo III is a
microprocessor based integrator designed
specifically forbulk 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
desiredunits 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 isstored 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 runmode 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: 1R2:RATE HI R1:SPEED LO
PL-368 1 – 1

ABOUT THIS MANUAL
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.
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ENTER
PL-368 1 – 2

SPECIFICATIONS
COMPUFLO III
Power: » 100/115/200/230 V AC ±10%, jumper
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 » contactinput 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 Ωmax. 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

» Alarm: » 2 multipurpose relays for Rate or On-line Calibration
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 loadcell, 150m (500 ft) max. 20 AWG, 4 wire shielded,
Belden 8404 or equivalent
» Single loadcell, 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.
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PL-368 2 – 2

INSTALLATION
CompuFlo III
The CompuFlo III should be mounted in an area that is within the specified temperature range, and that is
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 directsunlight 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 mustbe 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 thehazardous area
for intrinsic safety. Encapsulated LVDT transducing elementsare also available. ContactMilltronics or your
local representative for hazardous application information.
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PL-368 3 – 1