Accu-Flo Meter Service Ltd. TM Series User manual

1
Rev. - 920863-01
04/10
Flowmeter ................................................................................ 1
GG Model ................................................................................ 3
GX Model ................................................................................. 9
GA Model .............................................................................. 19
SC Model ............................................................................... 20
F L O W M E T E R
TM Series Water Meters
(Models GG, GX, GA & SC)
Owner’s Manual
SAVE THESE INSTRUCTIONS
GENERAL INFORMATION
IMPORTANT NOTICE
Use TM Series meters with water and other chemicals compat-
ible with wetted components (see Specifications Section). Do
not use with fuel or incompatible chemicals. TM Series meters
are available with one of the following electronic options: Local
Display, Conditioned Signal Module (Open-Collector), Local
Display with Pulse-Out (GG Model), Local Display with 4-20 mA
(GX Model), 4-20 mA Output Only (GA Model) or Scaled Output
(SC Model). Refer to each section for details.
These meters are not legal for trade applications.
TM Series meters are very sensitive to electric noise if operated
within 1 to 2 inches of some electric motors or other sources
of electronic noise.
Connections
Install your meter in-line either horizontally or vertically or at
the end of the hose adjacent to the nozzle. Installation to metal
connections is not recommended. Install as follows:
1. Plan to install turbine with a minimum straight pipe length
as follows:
• Upstream from the turbine, allow a minimum straight pipe
length of 10 times the internal diameter of the turbine.
• Downstream from the turbine, allow a minimum straight
pipe length of 5 times the internal diameter of the turbine.
2. For Spigot (Pipe) End - Use only primer and solvents ap-
proved for PVC gluing.
Cut to Length - The meter housing can be shortened by the
customer. Each meter has a “dotted” line feature molded
on the top surface of the housing tube. The housing can be
cut up to this line without harming any internals.
Most glue on fittings will fit without interfering with the com-
puter display area. However, the customer should check all
parts before attempting cut.
For NPT Fittings - Wrap all connections with 3 to 4 wraps
of thread tape. Make sure the tape does not intrude into the
flow path.
3. Attach meter with arrow pointed in the direction of the flow.
4. For NPT Fittings - Hand tighten the meter at the housing
ends. Do not use a wrench or similar tool to tighten. This
can damage the housing.
INSTALLATION
GX Model GG Model

5. For Flange Fittings - Customer to provide:
• Ring Gaskets or Full-Face Gaskets approved for use with
ANSI flanges and the fluid being monitored (two required).
• 5/8" bolts and nuts: Four per side for 3-inch meters; eight
per side for 4-inch meters.
Torque bolts using a star pattern to 25 ft-lbs. Supplied
flanges are two-piece and allow the meter to be oriented
regardless of the mating flanges position.
Proper handling and care will extend the life and service of the
meter.
Turbine Rotor
The meter is virtually maintenance-free. However, it is impor-
tant the rotor moves freely. Keep the meter clean and free of
contaminants.
The rotor can be removed for cleaning and inspection. Begin
by unscrewing the nose cone from the outlet end of the meter.
A 1/4" square socket extension can be used. Remove the lock
and flat thrust washers. Rotor can then be removed from shaft.
Note orientation because rotor is not bi-directional. Remove
debris or deposits using soft brush or small probe. Reassemble
in reverse order.
Blowing compressed air through the turbine assembly
could damage the rotor.
Inlet and Outlet:
Spigot (Pipe) End Models:
TM300 3 inch Schd. 80, Spigot (Pipe)
TM400 4 inch Schd. 80, Spigot (Pipe)
NPT Models:
TM300-N 3 inch NPT
TM400-N 4 inch NPT
Flange Models:
TM300-F 3 inch 150# ANSI Flange
TM400-F 4 inch 150# ANSI Flange
Design Type: Turbine
Wetted Components:
Housing: PVC
Journal Bearings: PEEK
Shaft: Stainless Steel
Rotor and Nose Cone: Acetal
Washers: Stainless Steel
Max. Working Pressure:
TM300 (All Models): 225 PSIG @ 73° F
TM400 (All Models): 225 PSIG @ 73° F (Non CE),
135 PSIG @ 73° F (CE applications)
2
MAINTENANCE
CAUTION
SPECIFICATIONS
U.S. Measurement
Unit of Measure: Gallon
Flow Range:
3 inch: 40-400 GPM (Linearity: ±3.0% of Reading)
30-600 GPM (Accuracy: ±2.0% Full Scale)
4 inch: 60-600 GPM (Linearity: ±3.0 of Reading)
40-800 GPM (Accuracy ±2.0% Full Scale)
Operating Temperature: +32° F to +140° F
(Do not allow fluid to freeze inside meter.)
Storage Temperature: –40° F to +158° F
Product Weight - lbs.:
Spigot
(Pipe) NPT Flange
3 inch: 2.4 3.9 5.8
4 inch: 3.7 6.1 9.2
Dimensions - Inches (L x H x W):
Spigot (Pipe):
3 inch: 11.5 x 5.34 x 3.5
4 inch: 13.5 x 6.34 x 4.5
NPT:
3 inch: 14.7 x 5.78 x 4.37
4 inch: 17.0 x 6.76 x 5.34
Flange:
3 inch: 12.0 x 7.5 x 7.5
4 inch: 14.0 x 9.0 x 9.0
Metric Measurement
Unit of Measure: Litre
Flow Range:
3 inch: 151-1514 LPM (Linearity: ±3.0% of Reading)
113-2271 LPM (Accuracy: ±2.0% Full Scale)
4 inch: 227-2271 LPM (Linearity: ±3.0 of Reading)
151-3028 LPM (Accuracy ±2.0% Full Scale)
Operating Temperature: 0° to +60° C
(Do not allow fluid to freeze inside meter.)
Storage Temperature: –40° to +70° C
Product Weight - kgs:
Spigot
(Pipe) NPT Flange
3 inch: 1.09 1.77 2.63
4 inch: 1.68 2.77 4.17
Dimensions - cm (L x H x W):
Spigot (Pipe):
3 inch: 29.2 x 13.6 x 8.9
4 inch: 34.3 x 16.1 x 11.4
NPT:
3 inch: 37.3 x 14.7 x 11.1
4 inch: 43.2 x 17.3 x 13.6
Flange:
3 inch: 30.5 x 19.1 x 19.1
4 inch: 35.6 x 22.9 x 22.9

3
The following replacement parts and accessories are available
for the TM Series meters:
Part No. Description
12517601 Gasket
12518701 Adapter
125518-01 3 in. (Spigot) Turbine Assy Kit
125518-02 3 in. (NPT) Turbine Assy Kit
125518-03 3 in. (Flange) Turbine Assy Kit
125520-01 4 in. (Spigot) Turbine Assy Kit
125520-02 4 in. (NPT) Turbine Assy Kit
125520-03 4 in. (Flange) Turbine Assy Kit
PARTS
G G M O D E L
IMPORTANT NOTICE
This manual will assist you in operating and maintaining the GPI
electronics supplied with your GPI meter. The GPI Electronics
can be used in indoor or outdoor applications where occasional
exposure to moisture is common.
The GG Model Pulse Out with Display can be battery powered
(9-volt supplied) or externally powered.
• This product is not approved for use in hazardous locations.
• Be sure O-rings and seals are kept in good repair.
• When applying power, use DC power only!
• Disconnect external power before attaching or detaching
input or output wires.
Installation should be performed only by qualified
personnel, and in accordance with local governing
regulations.
Avoid plumbing meter where the Display is:
• Subject to constant exposure to water or other liquids (oc-
casional low-pressure splashing will not harm unit).
• Subject to >5g shock loading.
• Facing the sun directly for long periods of time.
The GG Model is shipped without cable or strain relief. See Illus-
trated Parts List for these components. When wiring long lengths
of cable, be sure to connect the shield to LOCAL-COM only!
(Multiple shield connections may cause ground-loop problems.
Try to keep cable lengths short. Individual installation sites vary
widely, contact GPI Customer Service with questions regarding
your specific needs.
SAFETY INSTRUCTIONS
INSTALLATION
CAUTION

Computer Display –
Batch and Cumulative Totals
The computer maintains two totals. The Cumulative Total pro-
vides continuous measurement and cannot be manually reset.
The Batch Total can be reset to measure flow during a single
use. The Cumulative Total is labeled with TOTAL 1, Batch Total
is labeled TOTAL 2 BATCH.
When the Cumulative Total reaches a display reading of 999,999
the computer will highlight an X10 icon. This indicates to the
operator that a zero must be added to the 6 digits shown. When
the next rollover occurs, the computer will highlight an X100
icon. This indicates to the operator that two zeroes must be
added to the 6 digits shown.
Press the DISPLAY button briefly to switch between the TOTAL
1, TOTAL 2 BATCH and FLOWRATE. Press DISPLAY briefly to
display the TOTAL 2 BATCH. Hold the DISPLAY button for 3
seconds to reset the Batch Total to zero.
When fluid is flowing through the meter, a small propeller icon
is highlighted.
NOTE: Totalization counts total units without differentiating
between gallons, litres or field calibrated units.
Flowrate Feature
To use this feature, press and release DISPLAY until FLOWRATE
icon appears. The factory set time base will be highlighted to the
right of FLOWRATE (M = minutes, H = hours, D = days). When
FLOWRATE is invoked, the display will be indicating rate of flow.
Activate the Meter
Computer is on continuously and always ready to perform. The
computer is powered by a field replaceable battery. When dis-
play becomes dim, faded or the low battery message appears
(see below), the battery needs to be replaced. Reference the
Maintenance Section for details.
Factory and Field Calibration
All calibration information is visible to the user as icons on the
top line of the display, above the numeric digits.
All units are configured with a “factory” calibration. Both gallons
and litres are available (“GL” or “LT” will be displayed). While
holding the CALIBRATE button, briefly press DISPLAY to toggle
between gallons and litres. This factory calibration (indicated
with FAC) is permanently programmed into the computer and
is not user adjustable.
NOTE: Your computer may have other units of measure pro-
grammed into it. If so, holding the CALIBRATE button and
momentarily pressing the DISPLAY button will toggle through
all factory set units. Other possible units are: IGL (imperial
gallon), QT (quart), CF (cubic feet), CM (cubic meter), BL (42
gal. barrel), CC (cubic centimeter) or OZ (ounce).
Switching between different units will not corrupt the Total’s
contents. For example, in GL mode, the computer totalizes
10.00 gallons, if the user switches to LT mode, the display will
read 37.85 litres (the same volume, different unit).
The “field” calibration may be set by the user, and can be changed
or modified at any time using the calibration procedure described
below in the Calibration Section. Totals or flowrate derived from
the field calibration are invoked when the FAC icon is no longer
visible on the top line of the display.
Verify Accuracy Before
Beginning Field Calibration
For the most accurate results, dispense at a flowrate which best
simulates your actual operating conditions. Avoid “dribbling”
more fluid or repeatedly starting and stopping the flow. This
can result in less accurate calibrations.
Make sure you meet the meter’s minimum flowrate requirements:
TM Series Meters
3 inch meter 30 GPM (113.6 LPM)
4 inch meter 40 GPM (151.4 LPM)
The use of a uniformly dependable, accurate calibration con-
tainer is recommended for the most accurate results. Due to
high flowrate, it is strongly recommended that calibration be
completed with a combination of volume and weight using fine
resolution scales.
For best results, the meter should be installed and purged of
air before field calibration.
Field Calibration with
Computer Display
Field Calibration and Factory Calibration are defined in the Op-
eration Section. Factory calibration settings are programmed
into each computer during manufacturing, using water at 70° F
(21° C). Readings using the Factory Calibration (FAC) may not
be accurate in some situations, for example, under extreme
temperature conditions, non-standard plumbing configurations
or with fluids other than water.
Field Calibration Procedures
(Correction Factor Method)
1. To calibrate, press and hold the CALIBRATE and DISPLAY
buttons for about 3 seconds until you see FLdCAL. Release
both buttons and you will see CF - 00.0. You are now in the
field calibration mode and values from -99.9% to +99.9%
can be entered.
2. The +/– position appears either as an “underscore” char-
acter for plus, or as a “hyphen” character for minus. The
DISPLAY button selects the position and the CALIBRATE
button toggles this character.
3. The DISPLAY button can then be pushed to select the
numeric positions. Press the CALIBRATE button to scroll
from 0 to 9. Enter the percentage of change you want the
display to correct. When satisfied with the value, press both
CALIBRATE and DISPLAY buttons simultaneously. CALEnd
will be displayed and unit will go back to normal operation,
less the FAC (factory calibration) icon.
CALIBRATION
4
OPERATION

4. All enabled units-of-measure remain visible and selectable
– the entered correction will be applied to all enabled units.
5. To return to factory calibration (FAC), press and hold both
CALIBRATE and DISPLAY buttons for about 3 seconds until
FAcCAL is displayed. Then release buttons. Unit should
return to normal operation and FAC icon is visible.
Connecting the Equipment
1. Remove the faceplate by removing the four corner screws.
2. Attach wiring from your equipment according to the following
terminal connections and wiring instructions, depending on
your circumstances. (See Terminal Locations)
The display may be powered by battery, externally powered or
both. When both are used (external power terminal as primary
with the battery terminal as back up) the batteries should last up
to 5 years. Connection and disconnection of either power input
while the other is active will not interrupt operation of the display.
Determine maximum power supply voltage after determin-
ing maximum allowable voltage of all electronic devices
in the system.
5
WIRING
CAUTION
T E R M I N A L L O C A T I O N S
9V_BAT+ Battery, 6.5V to 20V
EXT_V(+) External Power, 7V to 30V
COIL_B / To Flowmeter Sensor
COIL_A To Flowmeter Sensor
OC_OUT • This is an open-collector or current-sinking output
when NO JUMPER is attached at OUTPUT P.U.R.
location. It can sustain closed-circuit current of up
to 200 mA and open-circuit voltage of up to 60V.
• This is an active-drive output when the JUMPER
(supplied) is attached at location OUTPUT P.U.R. The
JUMPER applies an internal 10K Ohm resistor as a
“pull-up” to the regulated power supply of 5.5V.
• The output ground circuit may be connected to any
COM terminal.
• Do not use JUMPER if operating from a battery; it
will cause significantly increased system current
consumption.
• CAUTION: Only use JUMPER when the receiving
equipment has a active-drive input with 5V or less.
COM All COM terminals are internally connected and may
be used either as NEGATIVE power supply terminals
or return terminals for any inputs or outputs.

P O W E R
Connect battery (included) red wire (+) to 9V_BAT+ terminal.
Connect battery (included) black wire (–) to any
COM terminal.
9V Battery (included)
OUTPUT P.U.R.
Connect power wire (7-30 VDC) to EXT_V(+) terminal.
Connect ground wire to any
COM terminal.
External Power
OUTPUT P.U.R.
S I G N A L O U T P U T
Connect signal wire to OC_OUT terminal.
Connect ground wire to any
COM terminal.
NOTE: Jumper should not connect pins marked Output P.U.R.
Open Collector
OUTPUT P.U.R.
Connect signal wire to OC_OUT terminal.
Connect ground wire to
COM terminal.
Place JUMPER (supplied) over both pins marked OUTPUT P.U.R.
Active-Drive Output
OUTPUT P.U.R.
NOTE: Multiple COM terminals are provided for convenience
in making connections.
6

SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
A. LCD REGISTER 1. Battery not connected properly. Check battery connections.
NOT WORKING
2. Battery flat. Replace battery.
3. Faulty wiring connections. Check wiring for loose or faulty connections.
4. Faulty LCD. Replace computer assembly.
5. Faulty connection from computer Check wiring connections.
to Pulse PCB.
MAINTENANCE
Replacing the Battery
Replace the battery when the readout becomes dim or blank.
Replace the battery with a 9-volt lithium battery. Order GPI part
number 902006-44.
To replace the battery:
1. Remove the two large screws and two small screws from
the battery coverplate.
2. Remove the battery coverplate and gasket.
3. Remove the battery and clean any corrosion from the ter-
minals.
NOTE: Coat the terminals with petroleum jelly to protect against
corrosion.
4. Install the new battery.
5. Check the gasket for damage and replace as needed.
Position gasket and coverplate to align, insert screws and
tighten.
NOTE: Batch and Cumulative Total return to zero when the
battery fails or is disconnected. The factory calibration is
retained in the computer permanently and will display when
the battery is replaced.
Store at temperatures between 14° F to 140° F (–10° C to +60° C).
TROUBLESHOOTING
7

Item No.
No. Part No. Description Req’d.
1 120009-2 Battery Cover ......................................................... 1
2 120028-1 Battery Gasket ........................................................ 1
3 902006-44 Battery, 9-volt Lithium ............................................ 1
4 12052102 Computer Kit .......................................................... 1
5 12009801 Circuit Assembly (Pigtail) ........................................ 1
6 901002-82 O-Ring .................................................................... 1
7 12051701 Adapter Kit ............................................................. 1
11 125066-20 Cable, 20 ft. ............................................................ 1
125066-3 Cable, 100 ft. .......................................................... 1
12 902005-9 Strain Relief ............................................................ 1
13 901002-87 O-Ring .................................................................... 1
Item No.
No. Part No. Description Req’d.
14 906005-47 Threaded Plug ........................................................ 1
15 906005-48 Seal ......................................................................... 1
16 904005-63 Screw, 4-40 x 3/16 in. ............................................ 2
17 42100117 Jumper (2-Circuit) ................................................... 1
18 904005-28 Sealing Screw, 1/4-20 x 5/8 in. .............................. 4
19 904005-27 Sems Screw, 6-32 x 3/8 in. .................................... 2
20 12009601 Circuit Assembly (Core) .......................................... 1
21 902004-97 Battery Terminal ...................................................... 1
12051901 Battery Conversion Kit (not shown) - Kit includes
Items 3, 14, 15 and 21 ....................................... 1
ILLUSTRATED PARTS DRAWING – GG MODEL
8

9
Materials:
Acetal, Amorphous Nylon, PET Polyester, Polyester (de-
cals), Viton (gasket & seals), Stainless Steel (fasteners)
Power Source:
Battery (9V): 6.5V to 20V acceptable range.
Quiescent current (over and above current drawn by
display module) at the battery input is typically less
than 15uA.
External Power: 7V to 30V acceptable range. Quiescent
current (over and above current drawn by display
module) at the external power input is typically less than
90uA.
Battery Life:
4 years
Configuration:
2-Totals (1 cumulative and 1 batch), Rate, 2 Cals
(Factory calibration; 1 field calibration)
Time Base:
Minutes
Unit of Measure:
U.S. gallons, litres or cubic feet
Accuracy:
No additional error over coupled flow meter’s accuracy
Batch Total:
Up to 999,999 x 100 (99,999,900)
Cumulative Total:
Up to 999,999 x 100 (99,999,900)
Temperature:
+14° F to +140° F (–10° C to +60° C) - electronics only
Cable:
N/A
Mechanical Connections:
Display is mounted directly to flow meter body
Electrical Connections:
Two threaded plugs (1/2 x 20)
Weight:
Additional 1 lb. (.45 kg)
SPECIFICATIONS – GG MODEL
G X M O D E L
IMPORTANT NOTICE
This manual will assist you in operating and maintaining the GPI
electronics supplied with your GPI meter. The GPI Electronics
can be used in indoor or outdoor applications where occasional
exposure to moisture is common.
The GPI 4-20 mA Out with Display is a flow totalizer and rate
meter with industry standard current loop output. The unit is
loop powered, and provides a 4-20 mA analog output propor-
tional to the frequency signal for communication with PLCs and
other customer equipment. The 4-20 mA (or 0-20 mA) output is
calibrated under actual flow conditions with simple push-button
calibration. Auxiliary output includes 0-5 VDC.
The microprocessor-based electronics have extremely low
power requirements and are completely powered by the
4-20 loop. The electronics provides the options of local (on the
meter) and/or remote (up to 5,000 feet) display. Flow total and
rate are displayed on a large 6-digit LCD readout with two-point
floating decimal for totals from .01 to 999,999. All operations are
easily accessed with the push buttons on the display front panel.
This unit is not FM Approved.
NOTE: This unit is loop powered, requiring an input power sup-
ply of 8.5 to 35 volts (24 VDC is recommended).
NOTE: Setpoint calibration of the unit is required for the 4-20
mA, 0-20 mA, and 0-5 V output options.
• This product is not approved for use in hazardous locations.
• When applying external power to the transmitter, use DC
power only.
• Disconnect external power to the transmitter before detach-
ing or attaching input or output wires.
• Ground loops between sensor and user equipment can dam-
age the transmitter and can be dangerous.
• If you cannot galvanically isolate the sensor from earth
ground, you may need to use the transmitter’s optically
isolated inputs.
• Be sure O-rings and seals are kept in good repair.
Installation should be performed only by qualified person-
nel, and in accordance with local governing regulations.
CAUTION
SAFETY INSTRUCTIONS
INSTALLATION
CAUTION

10
Environmental
Avoid plumbing meter where the 4-20 mA Out with Display is:
• Subject to constant exposure to water or other liquids (oc-
casional low-pressure splashing will not harm unit if cable
entry points are well-sealed).
• Subject to > 5g shock loading.
• Facing the sun directly for long periods of time.
• Close to high voltage/current runs, DC motors, internal
combustion engines or frequency inverters.
Cable Guidelines
4-20 mA Current Loop:
• The current loop itself is very resistant to electrical noise
pickup and shielded cable is seldom needed except in very
“noisy” (electrical) locations and/or when very long runs
(thousands of feet) are used.
Sensor Cabling:
• GX models come with 20 ft. of shielded cable.
• If you require a longer cable, a 100 ft. cable kit is available
from GPI, or use Belden 9363 cable. When wiring longer
lengths of cable, be sure to connect the shield to LOCAL-
COM only! (Multiple shield connections may cause ground-
loop problems).
• Some trial and error may be needed because of the wide
variety of user conditions. Try to keep cable lengths short!
Use the diagrams found in the Wiring Diagrams Section to cor-
rectly wire the system.
The display is externally powered by the loop.
Determine maximum power supply voltage after determin-
ing maximum allowable voltage of all electronic devices
in the system.
Connecting the Equipment:
• Remove the faceplate by removing the four (4) corner screws.
• Attach wiring from your equipment according to the follow-
ing terminal connections and wiring diagrams, depending on
your circumstances.
WIRING
CAUTION
Terminal Connections
Remote Transmitter INPUTS / OUTPUTS
ISO-IN COM: N/A
ISO-LF IN: N/A
ISO-HF IN: N/A
HL-LF IN: N/A
COIL-A IN: To flowmeter
COIL-B IN: To flowmeter
HL-HF IN: N/A
EDM PWR: Local Vcc. Regu-
lated 5-VDC internal power.
This terminal can supply up
to approximately 2.5 mA,
continuously, to external
circuitry. Typical load/line
regulation under ordinary
conditions is about ± 10%
LOCAL COM: Local Common
(2 places)
0-5 V OUT: 0 to 5 V Voltage
Output. Frequency to
Analog Output.
PULSE OUT: Pulse-Out
Frequency Output Signal. It is an “open-collector” output (also known as “n-p-n”
or “current-sinking”), referenced to transmitter Local-Common
LOOP (–): 4 to 20 mA Current Loop – current into transmitter
LOOP (+): 4 to 20 mA Current Loop – current out of transmitter
ISO-IN COM
ISO-LF IN
ISO-HF IN
HL-LF IN
COIL-A IN
COIL-B IN
HL-HF IN
EDM PWR
LOCAL COM
LOCAL COM
0-5 V OUT
PULSE OUT
LOOP (–)
LOOP (+)

11
CAUTION: When reassembling the faceplate,
make sure that the enclosure seal is not
crimped or twisted. Do not over-tighten
corner screws (hand tighten only). Face-
plate can be rotated 90°.
W I R I N G D I A G R A M 1
— 4-20 mA or 0-20 mA Output —
Customer Equipment With Built-in Power Supply
Output: Customer Equipment, 0-20 mA Sensing, Built-in Loop Power Supply
TM Meter
INPUTS OUTPUTS
4-20 mA Out
with Display
Loop (+)
Loop (–)
(current)
(current)
Min. V = 8.5
Max. V = 35
Customer
Equipment
NOTE: Minimum loop power supply voltage required:
8.5V + (Max - Customer - Equipment - Drop) +
(Wiring - IR - Drop)
CAUTION: When reassembling the faceplate,
make sure that the enclosure seal is not
crimped or twisted. Do not over-tighten
corner screws (hand tighten only).
Faceplate can be rotated 90°.
W I R I N G D I A G R A M 2
— 4-20 mA or 0-20 mA Output —
Customer Equipment Without Built-in Power Supply
Output: Customer Equipment, 0-20 mA Sensing, Separate Power Supply
TM Meter
INPUTS OUTPUTS
4-20 mA Out
with Display Loop (+)
Loop (–)
(current)
(current)
Min. V = 8.5
Max. V = 35
Customer Equipment
(+) (–)
Loop Power Supply
Typ 12 – 24 VDC
Loop (+) Input
Loop (–) Input

NOTE 1: Loop power supply electrically isolated
from customer equipment
NOTE 2: Actual value of loop current (mA) is
disregarded
CAUTION: When reassembling the faceplate,
make sure that the enclosure seal is not
crimped or twisted. Do not over-tighten
corner screws (hand tighten only). Face-
plate can be rotated 90°.
W I R I N G D I A G R A M 3
— 0-5 V Output —
Customer Equipment Without Built-in Power Supply
Output: Customer Equipment, 0-5 V Sensing, Separate Loop Power Supply
INPUTS OUTPUTS
4-20 mA Out
with Display Loop (+)
Loop (–)
(current)
(current)
Customer Equipment
(+) (–)
Loop Power Supply
Typ 12 – 24 VDC
0-5 V Analog Input (+)
Analog In Return (–)
0-5 V Output
Local Com
TM Meter
NOTE 1: Loop power supply electrically isolated
from customer equipment
NOTE 2: Actual value of loop current (mA) is
disregarded
CAUTION: When reassembling the faceplate,
make sure that the enclosure seal is not
crimped or twisted. Do not over-tighten
corner screws (hand tighten only). Face-
plate can be rotated 90°.
W I R I N G D I A G R A M 4
— Pulse Output —
Customer Equipment Without Built-in Power Supply
Output: Customer Equipment, Frequency Sensing, Separate Loop Power Supply
INPUTS OUTPUTS
4-20 mA Out
with Display Loop (+)
Loop (–)
(current)
(current)
Customer Equipment
(+) (–)
Loop Power Supply
Typ 12 – 24 VDC
Open-Collector Pulse In
Pulse-In Return
Pulse Out
Local Com
TM Meter
12

13
Computer Display –
Batch and Cumulative Totals
The computer maintains two totals. The Cumulative Total pro-
vides continuous measurement and cannot be manually reset.
The Batch Total can be reset to measure flow during a single
use. The Cumulative Total is labeled with TOTAL 1, Batch Total
is labeled TOTAL 2 BATCH.
When the Cumulative Total reaches a display reading of 999,999
the computer will highlight an X10 icon. This indicates to the
operator that a zero must be added to the 6 digits shown. When
the next rollover occurs, the computer will highlight an X100
icon. This indicates to the operator that two zeroes must be
added to the 6 digits shown.
Press the DISPLAY button briefly to switch between the TOTAL
1, TOTAL 2 BATCH and FLOWRATE. Press DISPLAY briefly to
display the TOTAL 2 BATCH. Hold the DISPLAY button for 3
seconds to reset the Batch Total to zero.
When fluid is flowing through the meter, a small propeller icon
is highlighted.
NOTE: Totalization counts total units without differentiating
between gallons, litres or field calibrated units.
Flowrate Feature
To use this feature, press and release DISPLAY until FLOWRATE
icon appears. The factory set time base will be highlighted to the
right of FLOWRATE (M = minutes, H = hours, D = days). When
FLOWRATE is invoked, the display will be indicating rate of flow.
Activate the Meter
Computer is on continuously while externally powered. When
display becomes dim, faded or the low battery message appears
(see below), the DC power source needs to be investigated.
Factory and Field Calibration
All calibration information is visible to the user as icons on the
top line of the display, above the numeric digits.
All units are configured with a “factory” calibration. Both gallons
and litres are available (“GL” or “LT” will be displayed). While
holding the CALIBRATE button, briefly press DISPLAY to toggle
between gallons and litres. This factory calibration (indicated
with FAC) is permanently programmed into the computer and
is not user adjustable.
NOTE: Your computer may have other units of measure pro-
grammed into it. If so, holding the CALIBRATE button and
momentarily pressing the DISPLAY button will toggle through
all factory set units. Other possible units are: IGL (imperial
gallon), QT (quart), CF (cubic feet), CM (cubic meter), BL (42
gal. barrel), CC (cubic centimeter) or OZ (ounce).
Switching between different units will not corrupt the Total’s
contents. For example, in GL mode, the computer totalizes
10.00 gallons, if the user switches to LT mode, the display will
read 37.85 litres (the same volume, different unit).
OPERATION The “field” calibration may be set by the user, and can be changed
or modified at any time using the calibration procedure described
below in the Calibration Section. Totals or flowrate derived from
the field calibration are invoked when the FAC icon is no longer
visible on the top line of the display.
Verify Accuracy Before
Beginning Field Calibration
For the most accurate results, dispense at a flowrate which best
simulates your actual operating conditions. Avoid “dribbling”
more fluid or repeatedly starting and stopping the flow. This
can result in less accurate calibrations.
Make sure you meet the meter’s minimum flowrate requirements:
TM Series Meters
3 inch meter 30 GPM (113.6 LPM)
4 inch meter 40 GPM (151.4 LPM)
The use of a uniformly dependable, accurate calibration con-
tainer is recommended for the most accurate results. Due to
high flowrate, it is strongly recommended that calibration be
completed with a combination of volume and weight using fine
resolution scales.
For best results, the meter should be installed and purged of
air before field calibration.
Field Calibration with
Computer Display
Field Calibration and Factory Calibration are defined in the Op-
eration Section. Factory calibration settings are programmed
into each computer during manufacturing, using water at 70° F
(21° C). Readings using the Factory Calibration (FAC) may not
be accurate in some situations, for example, under extreme
temperature conditions, non-standard plumbing configurations
or with fluids other than water.
Field Calibration Procedures
(Correction Factor Method)
1. To calibrate, press and hold the CALIBRATE and DISPLAY
buttons for about 3 seconds until you see FLdCAL. Release
both buttons and you will see CF - 00.0. You are now in the
field calibration mode and values from -99.9% to +99.9%
can be entered.
2. The +/– position appears either as an “underscore” char-
acter for plus, or as a “hyphen” character for minus. The
DISPLAY button selects the position and the CALIBRATE
button toggles this character.
3. The DISPLAY button can then be pushed to select the
numeric positions. Press the CALIBRATE button to scroll
from 0 to 9. Enter the percentage of change you want the
display to correct. When satisfied with the value, press both
CALIBRATE and DISPLAY buttons simultaneously. CALEnd
will be displayed and unit will go back to normal operation,
less the FAC (factory calibration) icon.
CALIBRATION

14
4. All enabled units-of-measure remain visible and selectable
– the entered correction will be applied to all enabled units.
5. To return to factory calibration (FAC), press and hold both
CALIBRATE and DISPLAY buttons for about 3 seconds until
FAcCAL is displayed. Then release buttons. Unit should
return to normal operation and FAC icon is visible.
Setting 4-20 mA Endpoints
The 4-20 mA endpoint settings are independent from the display
calibration. If you reset the response time you MUST reset the
4-20 mA endpoints.
All units are shipped with the preset at: Response time = 0.7
seconds
Any new values you set for these items are automatically saved
when the transmitter is powered down, and automatically re-
stored the next time power is applied.
Procedure
Before you start, the fluid pumping system should be ready to
make two simple calibrating runs, first at the lowest anticipated
flowrate, and then the second at the highest anticipated flowrate.
Position yourself so you can easily operate the transmitter’s
pushbuttons. You should be able to see the indicator light (the
small window beside the “4” button).
Setting the Low (4 mA) Endpoint:
To set 4 mA at zero flow, go to step 3. Otherwise follow
steps 1, 2 and 3:
1. Start the fluid pumping system. Set it for steady flow at
the lowest anticipated rate (or the rate at which you want
a “minimum” indication).
2. Wait while the fluid flow is uninterrupted for at least 10
seconds.
3. While watching the transmitter’s indicating light, press and
hold both its “SET” and “4” buttons. Release them when
the light blinks.
NOTE: The length of time between “button press” and “light
blink” depends on the transmitter response time. The maxi-
mum is 5.2 seconds. If you can’t see the indicator light (if
you’re outdoors in bright light), you can safely just count
to 10 while holding the pushbuttons.
NOTE: After setting the minimum, the loop current should be
registering at or near 4 mA. Don’t worry if it’s not exact, it
will be correct after setting the high (20 mA) endpoint.
Setting the High (20 mA) Endpoint
1. Start the fluid pumping system. Set it for steady flow at the
highest anticipated rate (or the rate at which you want a
“maximum” indication).
2. Wait while the fluid flow is uninterrupted for at least 10
seconds.
NOTE: If you observe the current loop after completing the pro-
cedure, it should be registering at or very near 20 mA (within
the resolution specifications for the present conditions).
OPERATION – 4-20 mA
3. While watching the transmitter’s indicating light, press and
hold both its “SET” and “20” buttons. Release them when
the light blinks.
NOTE: During the high and low setpoint procedure, if the new
settings are very different from the previous settings, it is
possible to reverse the 4 mA and 20 mA setpoints so that
the 4 mA frequency is higher than the 20 mA frequency. The
situation corrects itself after you complete both setpoints. If
the new settings are close to the previous settings, you may
safely set either the low and high settings independently.
Lockout Feature
This transmitter includes a user selectable lockout feature. Se-
lect the feature after setting the 4 and 20 mA endpoints during
initial use. The lockout feature prevents tampering with the 4
and 20 mA settings on the transmitter.
Before activating the lockout feature make sure there is no signal
being received by the transmitter. If signal is being received,
deactivate it by one of the following methods:
• Stop the flow through the line that is being recorded.
• Disconnect the output device on the flowmeter.
Locking / Unlocking the Transmitter
Position yourself so you can easily operate the pushbuttons on
the transmitter. You should be able to see the indicator light.
To lock the transmitter, use the pushbuttons to enter the follow-
ing sequence with a brief pause between each button press:
20 – 20 – 20 – SET. The indicator light will blink twice to indicate
the unit is locked.
To unlock the transmitter, use the pushbuttons to enter the fol-
lowing sequence with a brief pause between each button press:
4 – 4 – 4 – SET. The indicator light will blink once to indicate
the unit is unlocked.
Checking the Status of the Lockout Feature
To check the status of the transmitter, use the pushbuttons to
enter the following sequence with a brief pause between each
button press: SET – 4 – 20 – SET. The indicator light will blink
once if unlocked or twice if locked.
Optional 0-20 mA Mode
A few current loop systems use 0-20 mA output. The input signal
frequency of “0” produces an output analog signal of “0” with
direct proportionality and no offset.
NOTE: A true loop current of “0” in a loop powered device like
the GPI transmitter is not obtainable. That’s because the
current loop powers the transmitter, and its operating cur-
rent is non-zero even at zero frequency input. In 0-20 mode,
the GPI Transmitter’s loop current will drop to as near zero
as possible at zero input, in most units between 1 and 2 mA.
Procedure
1. To enter 0-20 mode, simply press and hold all three push-
buttons simultaneously (4, SET, and 20) at any flowrate.
Continue holding until the indicator light blinks (light will
blink in up to 5 seconds) and release all buttons. This sets
the LOW END calibration point to zero/zero.

15
2. Set the 20 mA endpoint as described above under 4-20
mA calibration.
3. The special 0-20 mode will remain in effect until a new
4 mA endpoint is established in the usual way.
Auxiliary 0-5 VDC
The 4-20 mA Out with Display is equipped with an auxiliary
voltage output with a range of 0-5 VDC. This signal is capable
of dropping to within a few milliVolts of zero, and thus may be
more suitable for use in the 0-20 mode.
No special equipment is required to use the 0-5V output, but
wiring to customer equipment is different (see Wiring Diagram 3).
Changing Response Time
The 4-20 mA with Display comes from the factory with a default
0.7 seconds response time.
If you reset the response time (procedure detailed below)
you MUST then reset the 4-20 mA endpoints.
To give good performance with a variety of sensor types, many
frequency-to-analog converters, including the GPI 4-20 mA
Out with Display, offer two or more settings for “response time”
(sometimes referred to as “settling time” or “averaging time”).
• Longer (slower) response times are needed for sensor types
that generate very low frequency outputs.
• Operating a meter at high flowrates may require a shorter
(faster) response time to achieve the best transmitter perfor-
mance.
• Shorter (faster) response times are preferable for sensors that
generate higher frequency outputs (GPI TM Series Meters,
for example).
• Longer (slower) response times are also appropriate in situ-
ations where sensor-output frequency fluctuates or wobbles
substantially.
The GPI 4-20 mA Out with Display offers a choice of five
response-time settings, selectable by the unit’s pushbuttons.
Procedure
1. Start with the unit unpowered. If the unit is presently operat-
ing, temporarily disable its external power supply. Be sure
to allow at least 30 seconds to elapse with unit unpowered.
2. Press and hold the “4” button. While holding, watch the
indicator light and power up the 4-20 mA Out with Display.
3. Shortly after power is applied, the light will blink one or more
times. Count the number of blinks (from 1 to 5 blinks) and
release the button after the blinking has finished.
NOTE: If necessary, repeat steps 1 through 3 to get the number
of blinks corresponding to the response time you want.
WARNING
Blinks Response Time
1 blink 0.3 second
2 blinks 0.7 second
3 blinks 1.3 second
4 blinks 2.6 second
5 blinks 5.2 second
In normal operation, the 4-20 mA Out with Display always av-
erages two sequential input readings. The time delay from an
abrupt change in input frequency to a final, stabilized output
reading is always twice that shown in the above table.
Check cable-entry seals periodically. Tighten and/or apply seal-
ant if needed. This is especially important in environments con-
taining heavy concentrations of dust, oil mist or other residue.
Check all wiring connections occasionally for oxidation or cor-
rosion. Clean and re-seat if such conditions are noted.
If necessary, check and re-seat any connections that may have
been subjected to strain (during rework or construction, for
example).
MAINTENANCE

16
SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
A. METER IS NOT 1. Field Calibration not performed properly. Field Calibrate again or select Factory Calibration.
2. Factory Calibration not suitable for Perform a Field Calibration according to Calibration Section or
liquid being measured. select the proper Factory Calibration selection (i.e., gallon or litre).
3. Improper installation of flowmeter. Check for electrical noise, pulsation or swirl in the flow.
4. Flowrates too high or too low. See section on display calibration for flowrates.
B. READOUT FADED 1. Power not connected. Check power supply.
2. Wiring incorrect. Verify connections.
3. Computer defective. Contact the factory.
4. Temperature limits exceeded. Check temperature specifications.
C. NORMAL FLOW- 1. Field Calibration not performed correctly. Field Calibrate again or select Factory Calibration.
2. Computer defective. Contact the factory.
3. Loose wire or mis-wired. Check wiring diagram or cable installation.
4. Sensor not attached to turbine. Check continuity of sensor.
5. Faulty sensor. Contact the factory.
D. LOOP OUTPUT 1. 4 mA / 20 mA setpoints bad or not set. Perform new setpoint procedure for both 4 mA and 20 mA points.
WITHIN NORMAL
RANGE, BUT
INCORRECT
E. LOOP OUTPUT 1. Output response-time setting too short, Select a longer response-time setting.
“BOUNCES” especially for slow input signal.
2. Input connections bad. Check all signal-input connections for intermittent open- or
short-circuits.
F. LOOP-OUTPUT 1. Output response-time setting too long, Select a shorter response-time setting.
STABLE BUT especially for fast input signal.
RESPONSE TIME
TOO SLOW
G. LOOP-OUTPUT OK, 1. 0-5 V output loaded too heavily. Be sure 0-5 V load impedance is at least 1000 ohms (1KΩ).
2. Wiring incorrect. Verify connections.
H. LOOP OUTPUT 1. Loop not supplying power. Be sure loop power supply is present and working, and has
“STUCK”AT ZERO correct polarity.
2. Loop connections bad. Check all loop connections for open- or short-circuits.
3. Transmitter is faulty. Replace transmitter.
I. LOOP OUTPUT 1. 4 mA / 20 mA setpoints bad or not set. Perform new setpoint procedure for both 4 mA and 20 mA points.
“STUCK” AT LOW
VALUE (Between 1 2. No input signal. Verify presence of input signal at terminal block.
and 4 mA) RE-
GARDLESS OF 3. Input connections bad. Check all signal input connections for open- or short-circuits.
INPUT SIGNAL
4. Unit is faulty. Replace unit.
J. LOOP OUTPUT 1. 4 mA / 20 mA setpoints bad or not set. Perform new setpoint procedure for both 4 mA and 20 mA points.
“STUCK” AT FULL-
SCALE (above 2. Short-circuit between Loop (–) and Check all Loop and LOCAL-COM circuitry for shorts.
20 mA) REGARD- LOCAL-COM circuits.
LESS OF INPUT
SIGNAL 3. Incorrect connection of Hall Effect Hall Effect requires dedicated power supply.
device.
OR BLANK
ACCURATE
RATE BUT METER
DOES NOT COUNT
(Meter comes on
when DISPLAY
button pushed)
ERRATICALLY
(is unstable)
BUT 0-5 V OUTPUT
DOESN’T WORK
(No reading at all,
regardless of input
signal.)
TROUBLESHOOTING

17
Item No.
No. Part No. Description Req’d.
1 120512-01 Switch Keypad Kit ............................................................1
2 120048-01 Gasket ..............................................................................1
3 12052102 Computer Kit ....................................................................1
4 120043-01 PCB Assembly .................................................................. 1
5 904005-63 Screw, 4-40 x 3/16 in. .......................................................2
6 901002-82 O-Ring .............................................................................. 1
7 12051701 Adapter Kit ........................................................................1
12 125066-20 Cable, 20 ft. ...................................................................... 1
125066-3 Cable, 100 ft. ....................................................................1
Item No.
No. Part No. Description Req’d.
13 906005-47 Threaded Plug ................................................................. 1
14 902005-9 Strain Relief ..................................................................... 1
15 901002-87 O-Ring ............................................................................. 1
17 120054-01 Main Circuit Assembly ...................................................... 1
18 904005-28 Sealing Seal, 1/4-20 x 5/8 in. ...........................................4
19 904005-74 Screw, Fillister HD, #6-32 x 3/8", CR ...............................2
20 906005-48 Seal for Threaded (Item #13) Plug ................................... 1
21 90400811 Washer, Flat, #6 (Type B), Narrow, SS .............................. 2
1
2
3
4
5
6
7
13
12
14
15
18
19
17
20
21
ILLUSTRATED PARTS DRAWING – GX MODEL

18
SPECIFICATIONS – GX MODEL
Applications:
Use for indoor or outdoor applications where occasional
moisture is common.
Materials:
Acetal, Amorphous Nylon, Silicone Rubber, Polyester (de-
cals), Viton (gasket & seals), Stainless Steel (fasteners).
Power Source:
2-wire, loop powered. 8.5 VDC to 35 VDC loop voltage re-
quired for correct operation.
Outputs*:
Analog Primary: 4-20 mA current loop. With loop voltage
maintained within specified limits, will maintain advertised
linearity over 4 mA to 20 mA range, with good linearity in
over-range conditions to about 1.5 mA and 25 mA.
Analog Auxiliary: 0 to 5 VDC. Relationship to primary current
output: V (volts) = l (ma) ÷ 5 . Will maintain advertised linearity
over 0.8 V to 4.0 V range, with good linearity in over-range
conditions to about 0.1 V and 4.9 V.
Recommended minimum driven impedance = 10K Ohms.
Digital (Pulse-Out): Open Collector, square wave. Will switch
up to 60 V and up to 200 mA. Closed circuit voltage drop
typically 0.1 V; guaranteed less than 0.5 V at any current up
to 200 mA.
Configuration:
2-Totals (1 cumulative and 1 batch), Rate, 2 Cals (Factory
calibration, field calibration).
Time Base:
Minutes
Unit of Measure:
U.S. gallons, litres or cubic feet.
Accuracy / Performance:
Possible conversion error, in addition to any inaccuracy of
coupled flowmeter, as follows:
Max. Conversion Error: (Nonlinearity plus span, any input,
loop current output, 0° C to +70° C, loop voltage supply
12 VDC to 24 VDC) 0.5% of span plus possible resolution
uncertainty.
Max. Conversion Resolution Uncertainty: (Loop current
output, when properly calibrated) Larger of 0.1 mA or
[20 mA / (10 x ( f20–f4)]. Where f20 = frequency at 20 mA,
f4 = frequency at 4 mA.
Speed of Response: After step change in input frequency,
loop output guaranteed stable within 3 x accumulating time
(Accumulating time user selectable from 0.3 sec, 0.7 sec,
1.3 sec, 2.6 sec, 5.2 sec).
Frequency Range:
0.25 to 1,000 hertz
Batch Total:
Up to 999,999 x 100 (99,999,999)
Cumulative Total:
Up to 999,999 x 100 (99,999,999)
Temperature:
Ambient Temperature: +32° F to +140° F (0° C to +60° C)
Cable:
20 ft., 3 conductor, shielded (Belden 9363).
Mechanical Connections:
Display is mounted directly to flow meter body via 1-inch NPT.
Electrical Connections:
One strain relief port: one threaded plug (1/2 x 20).
Weight:
1.1 lb. (.5 kg) (Additional)
* If you want to use the 4-20 mA output and one or both of the other outputs
at the same time, you must provide electrical isolation between the current loop
and all other circuit elements. Failure to do so will result in incorrect 4-20 mA
signal conversion, and possible damage to the unit.

19
1
2
3
4
9
10
11
13
12
15
16
G A M O D E L
ILLUSTRATED PARTS DRAWING –
GA MODEL
Item No.
No. Part No. Description Req’d.
1 120515-01 Switch Keypad Kit ............................................................ 1
2 120054-01 Main Circuit Assembly ......................................................1
3 901002-82 O-Ring ..............................................................................1
4 12051701 Adapter Kit
9 125066-3 Cable, 100 ft. (Remote Model) ..........................................1
125066-20 Cable, 20 ft. (Remote Model) ............................................1
10 906005-47 Threaded Plug ..................................................................1
11 902005-9 Strain Relief ......................................................................1
12 901002-82 Seal ................................................................................... 1
13 901002-87 O-Ring .............................................................................. 1
15 904005-63 Screw, 4-40 x 3/16 in. .......................................................2
16 904005-28 Sealing Screw, 1/4-20 x 5/8 in. ......................................... 4
MAINTENANCE
All information needed for the GA Model can be found in the GX
Model sections. Consult one or all of the following:
Important Notice .....................................................................9
Safety Instructions ...................................................................9
Installation ...............................................................................9
Wiring ....................................................................................10
Wiring Diagrams ....................................................................11
Operation – 4-20 mA .............................................................14
Troubleshooting .....................................................................16
Specifications ........................................................................18
Check cable-entry seals periodically. Tighten and/or apply seal-
ant if needed. This is especially important in environments con-
taining heavy concentrations of dust, oil mist, or other residue.
Check all wiring connections occasionally for oxidation or cor-
rosion. Clean and re-seat if such conditions are noted.
If necessary, check and re-seat any connections that may have
been subjected to strain (during rework or construction, for
example).

20
S C M O D E L
GPI flowmeters have a “K-factor” which is the pulse output per
unit volume measured stated as “Pulses Per Gallon” (PPG). In
a flowrate-measuring system, it’s desirable to have an output
signal that has been converted to a standard unit of measure
such as gallons. Such an output can then be used to drive “off-
the-shelf” display units and/or relays.
An electronic circuit performs this conversion by counting and
accumulating input pulses until the count reaches the known K-
factor. It then generates an output pulse. At that time the counter/
accumulator “starts over” with a new count, and this process
repeats continuously as long as input pulses are present.
The GPI Scaled Pulse Module presents a series of 10-position
switches by which the user can set the desired K-factor.
All user connections to the GPI Scaled Pulse Module are made
through rugged, convenient screw-terminal blocks, so that in
typical setups no soldering, “wire nuts” or electrical tape is
required.
This unit is not FM Approved.
NOTE: This unit is DC powered, requiring an input power sup-
ply of 5 to 30 volts.
• This product is not approved for use in hazardous locations.
• When applying external power to the transmitter, use DC
power only.
• Disconnect external power to the transmitter before detach-
ing or attaching input or output wires.
• Ground loops between sensor and user equipment can dam-
age the module and can be dangerous.
• Be sure O-rings and seals are kept in good repair.
Installation should be performed only by qualified person-
nel, and in accordance with local governing regulations.
Environmental
Avoid plumbing meter where the Scaled Pulse Module is:
• Subject to constant exposure to water or other liquids (oc-
casional low-pressure splashing will not harm unit if cable
entry points are well-sealed).
• Close to high voltage/current runs, DC motors, internal
combustion engines or frequency inverters.
• Excessive vibration.
Cable Guidelines
The open collector signal itself is very resistant to electrical
noise pickup and shielded cable is seldom needed except in
very “noisy” (electrical) locations and/or when very long runs
(thousands of feet) are used.
Sensor Cabling
• Some products come with 20 ft. of shielded cable.
• If you require a longer cable, a 100 ft. cable kit is available
from GPI, or use Belden 9363 cable. When wiring longer
lengths of cable, be sure to connect the shield to Module
COM ONLY! (Multiple shield connections may cause ground-
loop problems).
• Some trial and error may be needed because of the wide
variety of user conditions. Try to keep cable lengths short!
This manual refers to various models of GPI flowmeters. De-
termine what type of input the electronics will receive and what
type of output, if any, you require. Use the diagrams found in
the Wiring Diagrams section, if the unit is not already wired, to
correctly wire the system.
Determine maximum power supply voltage after determin-
ing maximum allowable voltage of all electronic devices
in the system.
The Scaled Pulse Module comes with 20 ft. of cable to connect
to power and output wiring.
Connecting the Equipment:
• Remove the faceplate by removing the four (4) corner screws.
• Attach wiring from your equipment according to the follow-
ing terminal connections and wiring diagrams, depending on
your circumstances.
CAUTION
SAFETY INSTRUCTIONS
INSTALLATION
CAUTION
WIRING
CAUTION
IMPORTANT NOTICE