GPI TM Series Operation Manual

SAVE THESE INSTRUCTIONS
Operations Guide for
TM Series Electronic Water Meters

TABLE OF CONTENTS

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E N G L I S H

IMPORTANT NOTICE

Use TM Series meters with water and other
chemicals compatible with wetted components
(see Specifications Section). Do not use to
meter fuel or chemicals. TM Series meters
measure in gallons or litres. Refer to the Cali-
bration Section for details.
These meters are not legal for trade applica-
tions.
Tm Series Meters are very sensitive to electric
noise if operated within one to two inches of
some electric motors or other sources of elec-
tronic noise.
03/05
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INSTALLATION

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 Soc Fittings use only primer and sol-
vents approved for PVC gluing.
For NPT Fittings wrap all connections with
3 to 4 wraps of Teflon
tape does not intrude into the flow path.
3. Attach meter with arrow pointed in the
direction of flow.
4. For NPT Fittings - Hand tighten the meter at
the housing ends. Do no use a wrench or
similar tool to tighten. This can damage the
housing.

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 flow until it runs steadily. Then,
stop the flow using a valve or nozzle.
2. If desired, hold down DISPLAY for 3 sec-
onds to zero the meter's Batch Total. When
zeros appear, release the button.
3. Meter an exact known volume into an ac-
curate container. For best results, meter
with one continuous full stream.
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tape. Make sure the
Rev. B 920786-01
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