GPI FM-300H Electronic Disc Meter Owner’s Manual
- June 6, 2024
- GPI
Table of Contents
FM-300H and
FM-300HR
Electronic Disc Meter Owner’s Manual
T o the owner…
Congratulations on receiving your GPI Electronic Disc Meter. We are pleased
to provide you with a meter designed to give you maximum reliability and
efficiency.
Our business is the design manufacture, and marketing of liquid handling,
agri- cultural, and recreational products. We succeed because we provide
customers with innovative, reliable, safe, timely, and competitively-priced
products. We pride ourselves on conducting our business with integrity and
professionalism.
We are proud to provide you with a quality product and the support you need to
obtain years of safe, dependable service.
President
Great Plains Industries, Inc.
GENERAL INFORMATION
This manual assists you in operating and maintaining your meter. Please take a
few moments to acquaint yourself with the information here.
If you need assistance, contact the dealer from whom you purchased your meter.
If You Measure in Litres
This manual commonly refers to “gallons.” If your meter is factory
calibrated in liters, consider all references to “gallons” apply equally to
“liters.”
This symbol is used throughout the manual to call your attention to safety
messages.
W ARNING
W a r n i n g s alert you to the potential
for personal injury.
CAUTION
Cautions call your attention to practices or procedures which may cause
damage to your equipment
Note s give you information that can improve the efficiency of
operations.
It is your responsibility to:
- make sure all operators have access to adequate instructions about safely operating and maintenance procedures.
- know and follow all safety precautions as specified by your chemical manufacturer for the handling of the fluid being metered.
Read Me!
For your safety, review the major warnings and cautions below before
operating your meter.
- This meter is approved to handle water, pesticides, fertilizers, and most industrial fluids. Do not use gasoline, diesel, or other fluids. Do not use this meter with flammable liquids.
- When handling hazardous chemicals, always follow the chemical manufacturer’s safety precautions. Wear protective clothing such as goggles, gloves, and respirators, as instructed.
- To avoid damage, DO NOT blow compressed air through the meter.
Your electronic disc meter is designed for measuring a wide range of chemicals. The meter translates flow data from the nutator disc into calibrated units shown on the meter’s readout. A field-replaceable battery provides power
BEFORE INSTALLATION
Upon receipt, examine your meter for visible damage. Remove protective plugs
and caps for a thorough inspection. If any items are damaged or missing,
contact your distributor.
CAUTION
To avoid damage, DO NOT blow compressed air through the meter.
If the meter is located in a rigid piping system where the fluid is trapped
(for example, by gravity, valves, or nozzles) thermal expansion of the fluid
can create pressure spikes that can damage a meter. Install a thermal relief
valve or otherwise allow for thermal expansion of the fluid.
Connect Battery
To save power, this meter is shipped with the battery disconnected. Before
using, connect the battery using the instructions below:
- Remove the two large and two small screws from the battery cover plate located on the lower portion of the meter face.
- Remove the battery and plug into battery connections. When connected properly, numbers appear in the meter readout.
- Replace the gasket and battery cover and tighten securely. Torque the screws to 9 to 10 in. lbs.
INSTALLATION
NOTE: To avoid damage to the inlet and outlet, install this meter ONLY on plastic hose end or pipe fittings.
- To protect against leakage, seal all threads with two or three turns of Teflon® tape or a pipe thread sealant compatible with the liquid being measured. Make sure the Teflon® tape or sealant does not interfere with the flow.
- Hand-tighten the meter onto the fittings until snug. (Figure 1)
CAUTION
To avoid damage to the housing, DO NOT use a wrench.
BEFORE EACH USE
If the meter has been used before, make sure it is flushed and cleaned as
outlined in the Maintenance Section.
Press and release the DISPLAY button to ensure the meter is operating. Numbers
will display from the last use.
If the display becomes dim, faded or the low battery message appears (see
below), the battery needs to be replaced. Reference the Maintenance Section
for details. Also, check attery terminals for corrosion. To prevent corrosion
from condensation, coat the terminals with petroleum jelly.
V erify Meter Accuracy
Before using, verify calibration and check the meter’s accuracy.
- If desired, hold down DISPLAY for three seconds to zero the meter’s Batch Total. When zeros appear, release the button.
- Meter an exact known volume into an accurate container. For best re- results, meter with one continuous full stream.
- Check the readout. If the amount metered is accurate, field calibration is not needed. If not, refer to the Calibration Section for further instructions.
NOTE: Best performance can be ob- trained by using the factory calibration.
OPERATION
WARNING
This meter is approved to handle water, pesticides, fertilizers, and most
industrial fluids. Do not use gasoline, diesel, or other fuels.
Do not use this meter with flammable liquids.
Computer Display
All operations are reflected in the LCD readout. The large center digits
indicate amounts, where smaller words or “icons” located above and below
indicate specific information regarding totals, flow, calibration, and units
of measure.
Activate the Meter
The computer is on continuously and always ready to perform. The computer is
powered by a field-replaceable battery. When the display becomes dim, faded or
the low battery message appears, the battery needs to be replaced. Reference
the Maintenance Section for details.
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 flow 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 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 briefly to switch between the TOTAL 1, TOTAL 2 BATCH,
and FLOWRATE (if applicable). Press DISPLAY briefly to display the TOTAL 2
BATCH. Hold the DISPLAY button for 3 seconds to reset the Batch Total to zero.
When fluid is flowing through the meter, a small propeller icon is
highlighted.
Flowrate Feature
Some models have of Rate of Flow mode. To use this feature, press and release
DISPLAY until the FLOWRATE icon appears. The factory-set time base will be
highlighted to the right of FLOWRATE (M = minutes). When FLOWRATE is invoked,
the display will be indicating the rate of flow.
CALIBRATION
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 configured with a “factory” calibration. Some models are
calibrated with gallons (GL) and others calibrated with liters (LT). This
factory calibration (indicated with FAC) is permanently programmed into the
computer and is not user-adjustable.
The “field” calibration may be set by the user and can be changed or modified
at any time using the calibration procedure described in the Calibration
section. Totals or flowrate derived from the field calibration are invoked
when the FAC icon is no longer visible on the top line of the display.
Field Calibration
Factory calibration settings are custom-programmed into each flowmeter
during production and are correct for light fluids such as water or heavier
liquids like pesticides or light oil. However, readings using the standard
factory calibration curves may not be accurate in some situations – variations
in chemical formulation, viscosity, temperature, and flow rates all affect
meter accuracy. To ensure accuracy, it is important to check accuracy
frequently and field calibrate when necessary.
Field Calibration Procedures (Dispense/Display Method)
- To field calibrate, press and hold the CALIBRATE and DISPLAY buttons for about 3 seconds until you see FLdCAL. Release both buttons and you will see dd000.0. You are now in the field calibration mode.
- Dispense a known amount of fluid at a flowrate representative of the application. Any amount between .1 and 999.9 units can be used. The display will count up while fluid is flowing through the meter.
- The DISPLAY button can then be pushed to select the digit location and the CALIBRATE button can be pushed to scroll the desired value at the blinking position. Edit the amount shown with the value that was dis- pensed above. Values from 000.1 to 999.9 can be entered.
- When satisfied with the value, press both CALIBRATE and DISPLAY buttons simultaneously. the calendar will be displayed and the unit will go back to normal operation, less the FAC (factory calibration) icon.
- The meter will now be operating with a custom calibration number unique to the above dispense procedure. No unit of measure (gallon, liter, etc.) icon will be highlighted.
NOTE: If the field calibration mode is entered and NO fluid is dispensed,
then upon leaving, the computer will use data from the last successful field
calibration.
Calibration Container
The desired calibration container should be uniformly dependable and
constructed with a graduated neck. The container’s volume indicator should be
clearly and precisely marked. It is helpful if the container’s material allows
a window through which the level of liquid can be viewed. GPI offers a
properly designed calibration container for volumes of 5 gallons or 5 liters.
D O N O T use several smaller containers or a larger
container with a 5-gallon marking.
For the most accurate results, dispense at flowrates that best simulate your
actual operating conditions. Avoid “dribbling” more fluid or repeatedly
starting and stop- ping the flow. These actions will result in less accurate
calibrations.
During calibration, make sure you meet the meter’s minimum flowrate
requirements of 2 GPM (7 LPM).
Before calibrating, purge the system of air using instructions in the Before
Each Use section.
MAINTENANCE
This meter is virtually maintenance-free.
It is important, however, that the nutator disc moves freely.
To prevent the drying of chemicals on internal assemblies, meters should be
kept free of chemicals when not in use for extended periods of time. Flush and
clean after each use to promote trouble-free operation.
Removal
WARNING
During meter removal, chemicals may spill. Follow the chemical manufacturer’s
safety precautions for cleanup of minor spills.
- Ensure all chemical is drained from the meter. This could include draining the hose, meter, and nozzle.
- Wearing protective clothing, loosen the meter from fittings by hand.
CAUTION
To avoid damage to the housing, do not use a wrench.
If the meter is not immediately installed again, cap the hose end to prevent
spills and drying. The nozzle could be used for this purpose. Flush the meter
if it will not be in use for more than two weeks.
Flushing
When removed or not in use for more than two weeks, flush the meter to remove
chemical residue.
CAUTION
Do not submerge the meter.
If needed, clean the meter using Cleaning instructions.
Cleaning
During use, the meter should be kept free of liquid to ensure drying does not
occur inside the meter. If drying should occur, the nutator will stick or
drag, affecting accuracy.
If this occurs, cleaning is required.
Cleaning the Nutator
-
Loosen the screws on the back of the meter about 1/4 inch (0.6 cm). (Figure 2)
-
Tap the screws with a hammer to loosen the cover plate from the housing. (Figure 3) Remove the screws and washers.
-
Gently pry the cover plate from the housing. Take care not to damage the cover plate, housing, or O-ring. (Figure 4)
-
Remove the signal generator from the pin on the nutator disc. (Figure 5
-
Gently remove the metal clips holding the nutator in place. (Figure 6) Take care not to damage the O-ring on the nutator inlet.
-
Remove the nutator.
-
Using water or a solvent-based fluid and a brush, carefully remove residue from the nutator disc, nutator halves, signal generator, and inside of the housing. Allow all parts to dry.
CAUTION
Do not submerge the meter. -
When the nutator turns freely, assemble and install following the instructions below.
Assemble Nutator
- Assemble the nutator disc and nuta-tor halves. Install the O-ring on the nutator inlet.
- Install the nutator in the meter housing. Make sure the nutator O-ring fits properly against the meter inlet.
- Secure the nutator with metal clips. Beginning opposite the inlet, install a clip in each slot in the housing. Push each clip down firmly until seated.
- Place the signal generator on the nu- tator pin. Make sure it rotates freely on the pin.
- Coat the O-ring lightly with bearing grease and seat securely on the coverplate.
- With the display facing up, turn the coverplate to the desired orientation. Align holes on the coverplate and housing.
- Secure the coverplate by evenly tightening screws to 25 to 35 in. lbs.
Storage
After thoroughly cleaning the meter, disconnect the battery and store the
meter in a clean, dry location.
Battery Replacement
Your meter is equipped with a field-replaceable 9-volt alkaline battery.
If the meter’s readout should become dim, blank, faded, or the low battery
message appears, replace the battery.
Batch and Cumulative Totals, as well as, Factory and Field Calibrations are
not lost when the battery is replaced or power is lost. They are saved in the
meter’s computer and are available after a new battery is installed. You do
not need to repeat Field Calibration.
Check the battery and terminals at least every year to ensure proper
operation. It is strongly recommended that terminals be cleaned annually.
NOTE: The battery can be replaced without removing the meter from the
hose or pipe.
T o replace battery or clean terminals:
-
Remove the two large and two small screws from the battery coverplate located on the lower portion of the meter face. (Figure 7)
-
Remove the battery coverplate and gasket. (Figure 8)
-
Remove the battery and, if necessary, clean corrosion from the battery terminals. (Figure 9) To prevent corrosion from condensation, coat the terminals with petroleum jelly.
-
Install the new battery.
When the battery is installed correctly, the computer powers on automatically. Check the readout to make sure normal meter functions have resumed before assembling again. If necessary, seat the battery again. -
Make sure the coverplate gasket is in good condition and properly seated. Replace, if needed.
-
Replace the battery cover. Torque the screws to 9 to 10 in. lbs.
End of Season
To ensure proper operation, the meter should be cleaned prior to extended
periods of inactivity and at the end of the season before storage. Disconnect
the battery before storage.
TROUBLESHOOTING
SYMPTOM
| PROBABLE CAUSE|
CORRECTIVE ACTION
---|---|---
A. METER IS NOT ACCURATE| 1. Field Calibration not performed properly
2. Factory Calibration not suitable for the liquid being measured
3. Meter operated below minimum flowrate
4. Meter partially clogged with dried liquid
5. Teflon® tape or another material inflow path
6. Nutator misaligned| Field calibrate again or select Factory Calibration.
Perform a Field Calibration according to Calibration Section.
Increase flowrate. See Specifications Section.
Remove meter. Disassemble and carefully clean dried chemicals from the
nutator. Make sure the nutating disc moves freely. Assemble again.
Remove meter. Clear material from flow path and seal fittings. Install again.
Disassemble the meter and install the nutator again. Ensure O-ring and
retainer clips are in place.
B. READOUT FADED OR BLANK| 1. Batteries weak, dead, or not connected
2. Battery terminal corroded
3. Computer defective| Replace battery. Install again, making sure the gasket
seats evenly around the coverplate.
Clean corrosion from the terminals.
Contact the factory.
C. NORMAL FLOW RATE BUT METER DOES NOT COUNT (Meter comes on when DISPLAY
button pushed.)| 1. Field Calibration not performed correctly
2. Nutator misaligned
3. Signal generator disc missing or damaged
4. Computer defective| Field calibrate again or select Factory Calibration.
Disassemble the meter and install the nutator again. Ensure O-ring and
retainer clips are in place.
Replace the signal generator disc. Contact the factory.
Contact the factory.
D. REDUCED FLOW- RATE & METER DOES NOT COUNT (Meter comes on when DISPLAY
button pushed.)| 1. Meter clogged with dried liquids| Remove meter.
Disassemble and clean dried chemicals from the nutator. Make sure the nutating
disc moves freely.
Assemble again.
E. CANNOT GET METER INTO FIELD CALIBRATION| 1. Button push sequence incorrect
2. Computer circuit board defective| Make sure CALIBRATE is held down while
DISPLAY is pushed. Hold both buttons for 3 seconds. The readout will then show
dd-000.0. Release both buttons.
Proceed with calibration according to Calibration Section.
Contact the factory.
F. METER CONNECTIONS LEAK| 1. Meter installed without thread sealant
2. Connecting threads damaged
3. Screws on back of meter lose
4. Coverplate O-ring missing, damaged or improperly installed
5. Meter housing cracked| Remove meter. Wrap male connections with 3 to 4
wraps of thread tape or compatible sealing compound. Install again.
Remove meter and inspect threads. Replace damaged connections. If threads are
damaged, contact the factory.
Tighten screws. Torque to 25 to 35 in.lbs.
Install O-ring on coverplate again.
Inspect housing for cracks. If cracks are present, contact the factory.
ILLUSTRATED PARTS LIST
|
---|---
Item No.
| Part No.|
Description Req’d. No.
---|---|---
1| 120505-1| Housing Kit…………………….. 1
1-A| 904004-19| Screw, 1/4-20 x 1-3/4 in…… 4
1-B| 904005-29| Washer, 1/4 in…………………. 4
2| 120503-1| Nutator Kit ……………………… 1
2-A| 111045-4| Nutator Seal …………………… 1
3| 120013-1| Clip ……………………………….. 4
4| 120504-1| Signal Generator Kit ………… 1
5| 120502-11| Coverplate Assy Kit, gallon . 1
120502-18| Coverplate Assay Kit, liter….. 1
5-A| 901001-78| O-ring ……………………………. 1
6| 902004-20| 9 Volt Transistor Battery …… 1
7| 120501-3| Battery Cover and Gasket Kit………………………. 1
7-A| 904005-28| Self-Sealing Screw, 1/4-20 x 5/8 in. ……………….. 2
7-B| 904005-27| Seems Screw, 6-32 x 3/8 in. ………………….. 2
7-C| 120028-1| Gasket …………………………… 1
- The Battery Cover and Gasket Kit, Item 7, is included in the Coverplate Assembly Kit, Item 5.
SPECIFICATIONS
Applications
Flow Range: 2-20 GPM (7-75 LPM) Operating Environment: Outdoor, operating
temperature range of 0° F to +130° F (-18° C to +54° C).
Electronic Nutating Disc designed for mounting on hoses or pumps of fluid
transfer systems.
Power: 9 Volt alkaline battery
Maximum Working Pressure: 50 PSIG (3.4 bar)
Maximum Display Value: 999,999 (x100)
Accuracy
Factory Calibration: ± 2%
Field Calibration: ± 0.5%
Materials
Housing: PBT Polyester
Seals: Viton
Wetted Parts: PBT Polyester, 303/304
Stainless Steel, Ferrite
Mechanical
Inlet: 1-inch NPT female
Outlet: 1-inch NPT male
Dimensions
Height: 4 inches (10.3 cm)
Depth: 3.1 inches (8.1 cm)
Width: 6 inches (15.2 cm)
Shipping W eight
3 lbs. (1.4 kg)
Storage T emperatur e
-40° F to +158° F (-40° C to +70° C)
SERVICE
For warranty consideration, parts, or other servicing information, please
contact your local distributor. If you need further assistance, call the GPI
Customer Service Department in Wichita, Kansas, during normal business hours.
1-800-835-0113
To obtain prompt, efficient service, always be prepared with the following
information:
- The model number of your meter.
- The serial number or manufacturing date code of your meter.
- Specific information about part numbers and descriptions.
For warranty work always be prepared with your original sales slip or other
evidence of purchase date.
Returning Parts
Please contact the factory before re-turning any parts. It may be possible
to diagnose the trouble and identify needed parts in a telephone call or
letter. GPI can also inform you of any special handling requirements you will
need to follow covering the transportation and handling of equipment that has
been used to transfer hazardous liquids.
CAUTION
Do not return meters without specific authority from the GPI Customer
Service Department. Due to strict regulations governing transportation,
handling, and disposal of hazardous liquids, GPI will not accept meters for
rework unless they are completely free of chemicals.
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 2-year warranty from the date of purchase as evidenced
by the original sales receipt. A 30-month warranty from the product date of
manufacture will apply in cases where the original sales receipt is not
available. Reference product labeling for the warranty expiration date based
on 30 months from the date of manufacture. 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 war- rates 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.
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 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
800-835-0113. Or by mail at:
Great Plains Industries, Inc.
5252 E. 36th St. North
Wichita, KS, USA 67220-3205
GPI will step you through a product troubleshooting process to determine
appropriate corrective actions.
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).
GREAT PLAINS INDUSTRIES, INC.
5252 East 36th Street North
Wichita, KS USA 67220-3205
TEL: 316-686-7361
FAX: 316-686-6746
“A Great Plains Ventures Subsidiary”
www.gpipumps.net
1-800-835-0113
GPI is a registered trademark of Great Plains Industries, Inc.
© 2010 by GREAT PLAINS INDUSTRIES, INC., Wichita, KS.
Printed in the U.S.A. 06/10
Rev. C 920679-06
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