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920786-03 Rev. -
09/15
SAVE THESE INSTRUCTIONS
TM Series Electronic Water Meters
Owner's Manual
TM Meter with Computer Display & Pulse Output
IMPORTANT NOTICE
Use TM Series meters with water and other
chemicals compatible with wetted components. Do not use to meter fuel or incompatible chemicals. This TM Series meter features
a computer for local electronic display plus a
pulse output cable delivering raw pulses from
the meter electronics to provide a digital signal to
customer interfacing equipment. The computer
display measures in gallons or litres. Refer to
the Calibration 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.
INSTALLATION
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 mini-
mum 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 approved for PVC gluing.
For NPT Fittings wrap all connections with
3 to 4 wraps of thread tape (optional to use
pipe thread sealant). Make sure the tape
does not intrude into the ow path.
3. Attach meter with arrow pointed in the direction of uid ow.
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.
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920786-03 Rev. -
WARNING
Compatibility of this product’s material
and the process uid and/or environment
should be considered prior to putting into
service.
WARNING
Product should never be operated outside
its published specications for temperature
or pressure. See specications for your
model.
WARNING
Make sure ow and pressure have been
eliminated from process pipe prior to
installing or removing product.
WARNING
Always use appropriate thread sealant
when connecting product to
CAUTION
To protect against leakage, seal all pipe
threads with an appropriate sealing compound. Make sure the sealing compound
does not intrude into the ow path.
NOTE: If connecting to new male pipe
threads, burrs and curls can adversely affect
accuracy. Correct the problem prior to
turbine installation.
CAUTION
Installation near high electromagnetic elds
and high current elds is not recommended
and may result in inaccurate readings.
process piping.
Output Pulse
The output pulse trough the cable is a raw pulse.
For each rotation of the turbine rotor, a specic
number of pulses are transmitted via the attached
cable. Pulse amounts can vary depending on
pipe/meter size, owrate, uid type, etc. See
table below for reference information.
Meter Size Typ. Pulses per Gallon
TM050 2,400
TM075 1,100
TM100 570
TM150 213
TM200 100
A Calibration Report with specic calibration
information for this TM Series meter is also
included for your reference.
The pulse cable White wire is signal and the
Black wire is common (GND).
NOTE: Some interface devices may not have
an internal pull-up resistor. Use a minimum
820 ohms resistor if necessary (See Figure 1).
PULL-UP
RESISTOR
WHITE
- PULSE
BLACK - COMMON
Figure 1
5-30 VDC
V+
CUSTOMER
INTERFACE
EQUIPMENT
INPUT
GND
2
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920786-03 Rev. -
Verify Meter Accuracy
Before using, check the meter’s accuracy and
verify calibration.
1. Make sure there is no air in the system by
starting the ow until it runs steadily. Then,
stop or divert the ow using a valve or nozzle.
2. Meter an exact known volume into an accurate container. For best results, meter with
one continuous full stream.
3. Check the volume against the display or
recording equipment. If the amount metered
is accurate, further calibration is not necessary. If not, refer to the Calibration Section
for further instructions.
OPERATION
Computer Display –
Batch and Cumulative Totals
The computer maintains two totals. The Cumulative Total provides continuous measurement and
cannot be manually reset. The Batch Total can
be reset to measure ow during a single use.
The Cumulative Total is labeled 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 zeros must be added to
the 6 digits shown.
Press the DISPLAY button briey to switch
between the TOTAL 1, TOTAL 2 BATCH and
FLOWRATE. Press DISPLAY briey to display
the TOTAL 2 BATCH. Hold the DISPLAY button
for 3 seconds to reset the Batch Total to zero.
When uid is owing through the meter, a small
propeller icon is highlighted.
NOTE: Totalization counts total units without
differentiating between gallons, litres or eld
calibrated units.
D = days). When FLOWRATE is invoked, the
display will be indicating rate of ow.
Activate the Meter
Computer is on continuously and always ready
to perform. The computer is powered by eld
replaceable batteries. When display becomes
dim, faded or the low battery message appears
(see below), the batteries need 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 congured with a “factory” calibration. Both gallons and litres are available (“GL”
or “LT” will be displayed). While holding the
CALIBRATE button, briey 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 programmed 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 “eld” calibration may be set by the user,
and can be changed or modied at any time
using the calibration procedure described in the
Calibration Section. Totals or owrate derived
from the eld calibration are invoked when the
FAC icon is no longer visible on the top line of
the display.
Flowrate Feature
To use this feature, press and release DISPLAY
button until FLOWRATE icon appears. The
factory set time base will be highlighted to the
right of FLOWRATE (M = minutes, H = hours,
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920786-03 Rev. -
CALIBRATION
Verify Accuracy Before
Beginning Field Calibration
For the most accurate results, dispense at a
owrate which best simulates your actual operating conditions. Avoid “dribbling” more uid or
repeatedly starting and stopping the ow. This
can result in less accurate calibrations.
Make sure you meet the meter’s minimum
owrate requirements:
TM Series Meters
½ inch meter 1 GPM (3.8 LPM)
¾ inch meter 2 GPM (7.5 LPM)
1 inch meter 5 GPM (18.8 LPM)
1 ½ inch meter 10 GPM (37.5 LPM)
2 inch meter 20 GPM (75 LPM)
The use of a uniformly dependable, accurate
calibration container is recommended for the
most accurate results. Due to high owrate, it
is strongly recommended that calibration be
completed with a combination of volume and
weight using ne resolution scales.
For best results, the meter should be installed
and purged of air before eld calibration.
Field Calibration with
Computer Display
Field Calibration and Factory Calibration are
dened in the Operation 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
congurations or with uids 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 eld calibration mode and values from
-99.9% to +99.9% can be entered.
2. The +/– position appears either as an “underscore” character 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 satised 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.
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.
MAINTENANCE
Proper handling and care will extend the life and
service of the meter.
Turbine Rotor
The meter is virtually maintenance-free. However, it is important the rotor moves freely. Keep
the meter clean and free of contaminants.
If the rotor does not turn freely, apply a penetrating lubricant on the rotor, shaft and bearings.
Remove any debris or deposits from the rotor
using a soft brush or small probe. Be careful
not to damage the turbine rotor or supports.
CAUTION
Blowing compressed air through the turbine assembly could damage the rotor.
CAUTION
Do not allow liquids to dry inside the turbine.
CAUTION
Handle the rotor carefully. Small scratches
or nicks can affect accuracy.
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920786-03 Rev. -
Battery Replacement
The computer display is powered by two 3-volt
lithium batteries which may be replaced while the
meter is installed. When batteries are removed or
lose power, the batch and cumula tive totals and
the eld and factory calibrations are re tained.
WARNING
(Battery) – Avoid mechanical or electrical
abuse. Batteries may explode or cause
burns, if disassembled, crushed or exposed
to re or temperatures in excess of 212°F
(100°C). Do not short circuit or install with
incorrect polarity. DO NOT INCINERATE.
CAUTION
Batteries should ONLY be replaced with
P/N 113520-1 Kit (Includes two each
P/N 902004-2 Batteries). Do not mix old
with new. Do not use other brands or
technologies.
Open battery cells should be disposed
of in accordance with local regulations.
Lithium batteries are best disposed of as a
non-hazardous waste when fully or mostly
discharged. EPA does not list or exempt
Lithium as a hazardous waste. If waste
lithium batteries are still fully charged
or only partially discharged, they can be
considered a reactive hazardous waste
because of unconsumed lithium remaining
in the battery. Such batteries may qualify
as “Universal Waste” in many jurisdictions
within the U.S. and thus can be shipped for
disposal or recycling in accordance with
Universal Waste requirements.
If the display becomes dim, blank or the low
battery message appears (see below), replace
the batteries as follows:
1. Remove the four Phillips-head screws from
the face of the meter and lift the faceplate
from the turbine.
2. Remove the old batteries and clean any
corrosion from the terminals.
3. Install new batteries. Make sure the positive
post is in the correct position.
4. When the batteries are replaced, the faceplate will power ON. Check the display to
ensure normal functions have resumed
before assembling again.
5. Reseat batteries, if necessary, and position the faceplate on the turbine housing.
To avoid moisture damage, make sure the
seal is fully seated. Tighten the four screws
on the faceplate.
5
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920786-03 Rev. -
SPECIFICATIONS
Inlet and Outlet:
Spigot (Pipe) End Models:
TM050-LP ½ inch Schd. 80,
Spigot (Pipe)
TM075-LP ¾ inch Schd. 80,
Spigot (Pipe)
TM100-LP 1 inch Schd. 80,
Spigot (Pipe)
TM150-LP 1 ½ inch Schd. 80,
Spigot (Pipe)
TM200-LP 2 inch Schd. 80,
Spigot (Pipe)
NPT Models:
TM050-N-LP ½ inch NPT
TM075-N-LP ¾ inch NPT
TM100-N-LP 1 inch NPT
TM150-N-LP 1 ½ inch NPT
TM200-N-LP 2 inch NPT
Design Type: Turbine
Wetted Components:
Housing: PVC
Journal Bearings: Ceramic
Shaft: Tungsten Carbide
Rotor and Supports: PVDF
Retaining Washer: Stainless Steel
Max. Working Pressure:
225 PSIG @ 73° F
U.S. Measurement
Unit of Measure: Gallon
Flow Range:
½ inch 1 - 10 GPM
¾ inch 2 - 20 GPM
1 inch 5 - 50 GPM
1 ½ inch 10 - 100 GPM
2 inch 20 - 200 GPM
Accuracy with Computer: ± 3.0% of read-
ing (Accuracy can be improved with eld
calibration)
Operating Temperature: +32° to +140° F
(Do not allow uid to freeze inside meter.)
Storage Temperature: –40° to +158° F
Product Weight:
Spigot (Pipe) NPT
½ in. .38 lbs. .55 lbs.
¾ in. .43 lbs. .67 lbs.
1 in. .49 lbs. .84 lbs.
1 ½ in. .66 lbs. 1.38 lbs.
2 in. .78 lbs. 1.78 lbs.
Dimensions - Inches (W x H x L):**
Without Fitting With NPT Fitting
½" 2.1 x 2.5 x 4.3 2.1 x 2.7 x 6.0
¾" 2.1 x 2.7 x 4.4 2.1 x 2.9 x 6.1
1" 2.1 x 2.9 x 4.5 2.1 x 3.1 x 6.5
1 ½" 2.1 x 3.6 x 5.4 2.3 x 3.8 x 7.6
2" 2.4 x 4.1 x 5.5 3.5 x 4.4 x 7.9
Cable Length: 5 FT.
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920786-03 Rev. -
PARTS
The following replacement parts and accessories are available for the TM Series meters:
Part No. Description
113520-1 Battery Replacement Kit
116000-1 Calibration Container, Large (5 gallon)
125508-03 ½ inch, Turbine Assy Kit
125508-04 ½ inch NPT, PVC Turbine Assy Kit
125510-03 ¾ inch, Turbine Assy Kit
125510-04 ¾ inch NPT, PVC Turbine Assy Kit
125512-03 1 inch, Turbine Assy Kit
125512-04 1 inch NPT, PVC Turbine Assy Kit
125514-03 1 ½ inch, Turbine Assy Kit
125514-04 1 ½ inch NPT, PVC Turbine Assy Kit
125516-03 2 inch, Turbine Assy Kit
125516-04 2 inch NPT, PVC Turbine Assy Kit
901002-52 Seal
Computer Kits:
125509-04 ½ inch, Computer Assy Kit w/Pulse
125511-04 ¾ inch, Computer Assy Kit w/Pulse
125513-04 1 inch, Computer Assy Kit w/Pulse
125515-04 1 ½ inch, Computer Assy Kit w/Pulse
125517-04 2 inch, Computer Assy Kit w/Pulse
distributor. If you need further assistance, contact
the GPI Customer Service Department at:
1-888-996-3837
You will need to:
• Provide information from the decal on your
meter.
• Receive a Return Authorization number.
• Flush any uid from the meter before shipping
to the factory.
If possible leave customer installed ttings or
ample length of bare pipe for reinstallation.
CAUTION
Do not return the meter without specic
authority from the GPI Customer Service
Department. Due to strict regulations
governing transportation, handling, and
disposal of hazardous or ammable liquids,
GPI will not accept meters for rework unless
they are completely free of liquid residue.
SERVICE
For warranty consideration, contact your local
WEEE DIRECTIVE
RoHS Compliant (2011/65/EU)
This product is in compliance with the RoHS
Directive of the European Parliament and of
the Council on the Restriction of the Use of
Certain Hazardous Substances in Electrical and
Electronic Equipment.
Environmental Rating: IP65
7
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