Flomec LM51DN Owner's Manual
SAVE THESE INSTRUCTIONS
Industrial Grade
Oval Gear Enhanced Electronic Meter
Owner’s Manual - Model LM51DN - 1/2"
DESCRIPTION
The model LM51DN electronic lube meter is designed
specically to dispense motor oils (SAE 5…50), gear oils
(SAE 80…240), automatic transmission uid, antifreeze
(Ethylene Glycol), brake uid, windshield wiper uid,
and engine coolant solutions. Modular design, low cost,
lightweight and rugged make the LM51DN the best choice
for overhead reel systems.
The electronic register module contains a microprocessor
board powered by a lithium battery. It can be programmed
to dispense in pints, quarts, liters, or US gallons and
will totalize in liters or US gallons. The meter calibration
factor is determined during factory test. The meter can
be recalibrated in the eld for uids or different viscosity
if required. A 6-digit liquid crystal display, accurate to the
second decimal place, shows the exact amount of uid
dispensed. The entire register module is protected from
the wear and tear of normal shop use by a rugged, glass
lled, shock resistant, nylon housing.
OPERATION
As uid passes through the metering chamber by entering
the inlet port, the internal gears rotate, forcing the uid
to exit through the outlet port. Each rotation of the gear
displaces a given volume of uid.
The display shows the amount of uid dispensed since the
last time the reset button was pushed. Pushing the reset
button will reset the display to zero for the next dispense.
To Change the Unit of Measure
1. Press TOTAL three times followed by RESET three times
in a time frame of under 2 seconds. The active unit of
measure symbol will ash when you have entered programming mode.
2. Press RESET until desired unit of measure ashes on
the display.
3. To exit the programming mode, press and hold RESET
and TOTAL simultaneously for 3 seconds.
NOTE: Changing any unit of measure will reset the nonresettable and resettable totalizers.
To Program the Scale Factor
1. Press TOTAL three times followed by RESET three times
in a time frame of under 2 seconds. The active unit of
measure symbol will ash when you have entered programming mode.
2. Press TOTAL to advance to the rst digit of the scale factor.
3. The selected digit will blink. Push RESET to change the
value.
4. When the proper value displays, push TOTAL to move
to the next digit.
5. Continue until the correction factor has been entered.
6. To exit the programming mode, press and hold RESET
and TOTAL simultaneously for 3 seconds.
The display will ash three times and then go blank to indicate
the changes have been saved.
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FEATURES
SPECIFICATIONS
• 1500 psi rating
• NPT Threads
• Large 6-digit LCD display with two decimal-point
precision
• Dispense total display in pints, quarts, US gallons or
liters
• Unit of measure selectable from the front of register
• Totalization in US gallons and liters
• Resettable and non-resettable totalizer
• Display operation temperature range –4…140° F
(–20…60° C)
• Low battery indicator
• Long life eld replaceable top load battery
• Accuracy of ± 0.5%
• Calibration factor programmable from front of register
• Calibration factor saved in non-volatile memory
NOTE: The use of meters in applications other than those
described in this material may result in inaccuracy and
possible meter failure. Each meter is designed for use
with a specic type of uid. Do not use petroleum-based
products in a meter designed for water-based uids, or
water-based uids in a meter designed for petroleumbased products. It is also important that uids be properly
ltered before entering the meter. Foreign particles will
cause inaccuracy or malfunction of the meter. Warranties
are void in the circumstances described above.
Meter Model: LM51DN
Maximum Flow: 8 GPM (30 LPM)
Minimum Flow: 0.25 GPM (1 LPM)
Operating Pressure (Max.): 1500 psi (103 bar)
Operating Pressure (Min.): 5 psi (0.35 bar)
Operating Temperature (Max.): 140° F (60° C)
Operating Temperature (Min.): -4° F (-20° C)
Accuracy: ± 0.5%
Weight: 2.0 lb. (0.9kg)
Inlet & Outlet Connections: 1/2" NPTF
DIMENSIONS
Dimension Size
A 4.04 in. (102.6 mm)
B 3.27 in. (83 mm)
C 2.99 in. (75.8 mm)
Limited Warranty Policy
Great Plains Industries, Inc. 5252 E. 36th Street North, Wichita, KS USA 672203205, 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 modied 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 than in accordance with the
manufacturer’s operating instructions.
To make a claim against this warranty, contact the GPI Customer Service Department at 316-686-7361 or 888-996-3837. Or by mail at:
Great Plains Industries, Inc.
5252 E. 36th St. North,
Wichita, KS, USA 67220-3205
If you are outside North or South America contact:
Great Plains Industries – Australia
1/16 Atkinson Road,
Taren Point NSW 2229, Sydney, Australia
The company shall, notify the customer to either send the product, transportation
prepaid, to the company at its ofce 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
tness for any particular purpose other than for which it was designed.
This warranty gives you specic 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).
©2014, Great Plains Industries, Inc. All rights reserved.
and FLOMECTM are trademarks of Great Plains Industries, Inc.
920841-0210/14
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