GPI 01N Operating Manual

5252 East 36th Street North
Wichita, KS USA 67220-3205
TEL: [phone]
FAX: [phone]

“A Great Plains Ventures Subsidiary”

www.gpi.net

Owner’s Manual for

1-800-835-0113

01N31GM, 01N31LM and
01N12LM Electronic Water Meters

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 mea­surement 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

Batteries included.

reading of 9999, it will automatically reset to zero.

Press the DISPLAY button briefly to switch
between the batch and cumulative total.

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,
inaccuracies of no greater than ±5% will be ob­tained.

INSTALLATION

This meter may be installed in-line either hori­zontally or vertically or at the end of the hose adja­cent to the nozzle, if present. Installation to metal
connections is not recommended. Install as follows:

1. If necessary, remove nozzle from hose.

2. Apply pipe sealant to all threaded connections.

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.

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 DISPLAY button down for three
seconds to reset the batch total to zero.

The meter is programmed to turn off 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.

Rev. - 920756-0102/07

Battery Replacement

The meter is powered by two AAA alkaline
batteries which may be replaced while the meter is
installed. When batteries are removed or lose power,
the batch and cumulative totals reset to zero but the
factory calibration is retained.

If the meter display becomes dim or blank,
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 corro-

sion 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 assem-

bling again.

5. Reseat batteries, if necessary, and position the

faceplate on the turbine housing. To avoid mois-

ture damage, make sure the O-ring is fully seated.

Tighten the four screws on the faceplate.

SPECIFICATIONS

Model: 01N31GM

Unit of Measure: Gallons
Flowrate: 3 to 30 GPM
Working Pressure: 150 PSIG
Operating Temperature: +14°F to +130°F
Storage Temperature: -40°F to +158°F
Threads: 1 inch NPT

Model: 01N31LM

Unit of Measure: Litres
Flowrate: 10 to 100 LPM
Working Pressure: 10.3 bar
Operating Temperature: -10°C to +54°C
Storage Temperature: -40°C to +70°C
Threads: 1 inch NPT

Model: 01N12LM

Unit of Measure: Litres
Flowrate: 10 to 100 LPM
Working Pressure: 10.3 bar
Operating Temperature: -10°C to +54°C
Storage Temperature: -40°C to +70°C
Threads: 1 inch ISO

Limited Warranty Policy

Great Plains Industries, Inc. 5252 E. 36th Street North, Wichita, KS USA 67220-3205, hereby provides a limited warranty
against defects in material and workmanship on all products manufactured by Great Plains Industries, Inc. This product
includes a 1 year warranty. Manufacturer’s sole obligation under the foregoing warranties will be limited to either, at
Manufacturer’s option, replacing or repairing defective Goods (subject to limitations hereinafter provided) or refunding the
purchase price for such Goods theretofore paid by the Buyer, and Buyer’s exclusive remedy for breach of any such warran­ties will be enforcement of such obligations of Manufacturer. The warranty shall extend to the purchaser of this product and
to any person to whom such product is transferred during the warranty period.

The warranty period shall begin on the date of manufacture or on the date of purchase with an original sales receipt. This
warranty shall not apply if:

A. the product has been altered or modified outside the warrantor’s duly appointed representative;
B. the product has been subjected to neglect, misuse, abuse or damage or has been installed or operated other

To make a claim against this warranty, contact the GPI Customer Service Department at 316-686-7361 or 800-835-0113.
Or by mail at:

The company shall, notify the customer to either send the product, transportation prepaid, to the company at its office in
Wichita, Kansas, or to a duly authorized service center. The company shall perform all obligations imposed on it by the terms
of this warranty within 60 days of receipt of the defective product.

GREAT PLAINS INDUSTRIES, INC., EXCLUDES LIABILITY UNDER THIS WARRANTY FOR DIRECT, INDIRECT, INCIDEN­TAL AND CONSEQUENTIAL DAMAGES INCURRED IN THE USE OR LOSS OF USE OF THE PRODUCT WARRANTED
HEREUNDER.

The company herewith expressly disclaims any warranty of merchantability or fitness for any particular purpose other than
for which it was designed.

This warranty gives you specific rights and you may also have other rights which vary from U.S. state to U.S. state.
Note: In compliance with MAGNUSON MOSS CONSUMER WARRANTY ACT – Part 702 (governs the resale availability of

the warranty terms).

than in accordance with the manufacturer’s operating instructions.

Great Plains Industries, Inc.

Wichita, KS, USA 67220-3205

5252 E. 36

th

St. North

GPI is a registered trademark of Great Plains Industries, Inc.
© 2007 GREAT PLAINS INDUSTRIES, INC., Wichita, KS

Printed in U.S.A. 02/07

5252 East 36th Street North
Wichita, KS USA 67220-3205
TEL: [phone]
FAX: [phone]

“A Great Plains Ventures Subsidiary”

www.gpi.net

1-800-835-0113

Rev. - 920756-01