GPI 01N31GM User Manual

Owner’s Manual for
01N31GM, 01N31LM and
01N12LM Electronic Water Meters
Rev. A 920756-0105/09
5252 East 36th Street North
W ichita, KS USA 67220-3205
TEL: 316-686-7361
F AX: 316-686-6746
IMPORTANT NOTICE
Use this meter for water only. Do not use to meter
fuel or chemicals.
This meter is not legal for trade applications.
The meter is very sensitive to electrical “noise”
and may not operate correctly if located near some
electrical equipment.
CALIBRATION
This meter has a permanent factory calibration for
measuring water. If installed and used correctly, inac -
curacies of no great er than ±5% will be obtained.
INSTALLATION
This meter may be installed in-line either horizon -
tally or vertically or at the end of the hose adja-cent
to the nozzle, if present. Installation to metal con -
nections is not recommended. Install as follows:
1. If necess
ary, remove nozzle from hose.
2. Apply pipe sealant to all threaded connec -
tions.
3. Attach meter to hose with arrow on outlet port
pointed in the direction of flow.
4. If necessary, attach nozzle to meter.
5. Hand tighten the meter at the housing ends. Do
not use a wrench or similar tools to tighten the
meter housing. The plastic housing could be
damaged.
Batteries included.
OPERATION
Batch and Cumulative Totals
The meter maintains two totals. The batch total
may be reset to measure flow during a single use.
The cumulative total provides continuous measure -
ment and may not be manually reset. The batch total
is labeled as TTL1. The cumulative total is labeled
TTL2.
When the cumulative total reaches a maximum
reading of 9999, it will automatically reset to zero.
Press the DISPLAY button briefly to switch
between the batch and cumulative total.
Activate the Meter
Turn the meter ON by starting water flow or briefly
pressing the DISPLAY button. The meter will display
the batch or cumulative total from last use.
Press DISPLAY briefly to display the batch
total.
Hold the DIS PLAY button down for three seconds
to reset the batch total to zero.
The meter is programmed to turn o automatically
if not used for about one minute.
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.

GPI 01N31GM Specifications

Summary

Important Notice

Usage and Electrical Precautions

Use only for water. Avoid fuel/chemicals. Not for trade. Sensitive to electrical noise, may affect operation.

Calibration

Factory Calibration

The meter has permanent factory calibration for measuring water with ±5% accuracy if used correctly.

Installation

Installation Guidelines

Install inline horizontally or vertically. Avoid metal connections. Use pipe sealant on threads.

Operation

Batch and Cumulative Totals

Meter tracks batch (TTL1, resettable) and cumulative (TTL2, non-resettable) water totals.

Meter Activation and Auto-Off

Activate by starting water flow or pressing DISPLAY. Auto-turns off after one minute of inactivity.

Maintenance

Turbine Rotor Care

Keep rotor clean and free of contaminants. Lubricate or clear debris if it doesn't turn freely.

Battery Replacement

Battery Replacement Procedure

Replace two AAA batteries when display dims. Totals reset, but calibration is retained.

Specifications

Model 01N31GM

Specifications for 01N31GM: Gallons, 3-30 GPM, 150 PSIG, Temp range +14°F to +130°F.

Model 01N31LM

Specifications for 01N31LM: Litres, 10-100 LPM, 10.3 bar, Temp range -10°C to +54°C.

Model 01N12LM

Specifications for 01N12LM: Litres, 10-100 LPM, 10.3 bar, Temp range -10°C to +54°C.

Limited Warranty Policy

Warranty Coverage and Exclusions

1-year warranty from purchase or 30 months from manufacture. Excludes misuse, abuse, or unauthorized alteration.