IMPROPER GROUNDING, POOR VENTILATION, OPEN FLAMES OR SPARKS CAN CAUSE A HAZARDOUS CONDITION AND
RESULT IN AN EXPLOSION OR FIRE AND CAUSE SERIOUS INJURY.
• Be sure the fluid system is properly grounded. See your pump instruction manual for details.
• If there is static sparking or if you feel an electric shock while using the meter, stop dispensing immediately. Identify and
correct the problem before continuing.
• Provide fresh air ventilation. This will avoid the buildup of fumes from the fluid being dispensed.
• Do not smoke while dispensing flammable fluids.
• Keep the dispensing area free of debris including solvents, rags and spilled gasoline.
EQUIPMENT MISUSE CAN CAUSE THE METER TO RUPTURE OR MALFUNCTION AND CAUSE SERIOUS INJURY.
• This equipment is for professional use only.
• Read all instructions, tags and labels before operating the equipment.
• Use the equipment only for its intended purpose.
• Do not modify or alter the equipment.
• Do not leave equipment unattended while dispensing.
• Check equipment daily. Repair or replace worn or damaged parts immediately.
• Do not exceed the maximum working pressure level of the lowest rated system component.
• Use only extensions and nozzles that are designed for use with this equipment.
• Use only fluids and solvents that are compatible with the equipment. Read all fluid and solvent manufacturer’s warnings.
• Tighten all fluid connections before operating this equipment.
• Do not stop or deflect leaks with hands, body, gloves or rags.
• Do not dispense towards any person or any part of the body.
• Do not place hands or fingers over the end of or into the dispense valve.
• Comply with all local, state, and federal fire, electrical and safety regulations
• Use of this product in a manner other than specified in this manual may result in impaired operation or
damage to equipment.
THIS METER IS DESIGNED SPECIFICALLY TO DISPENSE PETROLEUM PRODUCTS. DO NOT USE FOR ANTIFREEZE
(ETHYLENE GLYCOL) SOLUTION, WINDSHIELD WIPER FLUID, BRAKE FLUID AND WATER BASED SOLUTIONS
AUT-UM-00933-EN-06
Page 3 April 2019
Meter Buttons
METER BUTTONS
LCD DISPLAY
Used to enter the batch quantity to be dispensed.
Used to display the accumulated total of fluid dispensed as well as the
re-settable total during Auto Batch and Manual Mode.
Used to enter and exit the Manual or Auto Batch mode.
• Used in the Manual mode to clear the dispensed quantity.
• Used in the Auto Batch mode to clear the dispensed quantity and
reset the meter for the next batch.
• Used to reset the re-settable total dispensed while pressing the
TOTAL button.
Used to stop the flow through an Emergency Override.
Table 1: Button locations and descriptions
1
1. Displays Re-settable Total, Accumulated Total and Scale Factor.
2
2. Displays Unit of Measure.
3. Arrow- not used.
5
7
6
4. Preset batch quantity.
5. History icon- not used.
6. Auto is an indicator of unit being in Auto Batch Mode.
3
7. Low battery icon.
4
Table 2: LCD display description
METER INSTALLATION
Relieve System Pressure
THIS EQUIPMENT STAYS PRESSURIZED UNTIL THE PRESSURE IS MANUALLY RELIEVED.
1. Turn o the power supply to the pump or close the shuto valve.
2. Dispense any uid in the system into a waste container by opening the meter.
3. Open all bleed-type master air valves and uid meter in the system.
4. Leave the meter open until ready to pressurize the system.
To reduce the risk of injury from fluid spray from the meter, follow this procedure when you:
• Are instructed to relieve pressure.
• Stop dispensing.
• Check, clean or service any system equipment.
• Clean or install nozzles.
Page 4 April 2019
AUT-UM-00933-EN-06
Meter Installation
Grounding
MOVEMENT OF FLUIDS THROUGH THE DISPENSING SYSTEM CREATES STATIC ELECTRICITY. STATIC ELECTRICITY CAN
CAUSE VOLATILE FUMES RESULTING IN AN EXPLOSION AND FIRE. THE DISPENSING SYSTEM MUST BE GROUNDED.
Grounding reduces the risk of static sparking. Ground all system components according to local, state and federal codes.
Consult the pump user manual and other system components to ground the following:
• Pump: follow manufacturer's recommendations
• Air and Fluid Hoses: use only grounded hoses
• Air Compressor: follow manufacturers recommendations
• Fluid Supply Container: follow the local code
Flushing Procedure
IF THIS INSTALLATION IS NEW OR IF THE FLUID IN THE LINES IS CONTAMINATED, FLUSH THE SYSTEM BEFORE
INSTALLING THE METER(S).
OTE:NIf the system has multiple dispense positions, begin at the position farthest from the pump and move towards
the pump.
1. Close uid dispense valves at every position.
2. Once the main uid outlet valve at the pump is closed and the air pressure to the pump motor is properly adjusted, the air
valve is opened.
3. Slowly open the main uid valve.
4. Place the hose end in a waste container. Make sure the hose is secure so no uid leaks during ushing.
5. Slowly open the dispense valve and allow enough uid to pass through it to ensure that the system is clean.
6. Close the valve and repeat for all dispense positions.
Attach Meter to Hose
Close the drain valve before starting this procedure.
1. Attach swivel to meter. Apply Loctite® 243 sealant, or equivalent, to the male end of the
hose. See Figure 1.
OTE:NThe threaded end of the meter always has female threads. The metal end of the
hose must have male threads. The inlet and outlet swivel connections are either
1/2 inch NPT or 1/2 inch BSPP, depending on meter model.
2. Insert the metal end of the hose into the swivel. See Figure 2.
Figure 1: Apply thread sealant
Figure 2: Insert hose into swivel
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Page 5 April 2019
Meter Operation
3. Tighten completely with an open ended, adjustable, wrench. See Figure 3.
Attach Nozzle to Meter
1. On the opposite end, apply Loctite® 243 sealant, or equivalent, to the end of the nozzle.
Thread the nozzle onto the meter. See Figure 4.
2. Screw it in tightly with an open-ended, adjustable wrench. See Figure 5.
3. Open all dispense position shuto valves. Start the pump to pressurize the system.
4. Before use, to ensure accuracy, purge all air from the uid lines and dispense valve(s).
Figure 3: Use wrench to tighten
Figure 4: Thread nozzle onto meter
METER OPERATION
OTE:NThe keypad Auto button is used to toggle between Manual Mode and Auto Batch Mode.
Manual Mode
In Manual Mode the meter operates as a free flow-dispensing handle.
1. Pull the trigger to begin the ow.
2. The display shows the amount dispensed.
3. When the desired amount has been dispensed, release the trigger to stop the ow.
4. Press RESET once to reset the counter display to zero.
Figure 5: Tighten nozzle with wrench
Figure 6: Manual mode screen
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AUT-UM-00933-EN-06
Operating Mode Functions
Auto Batch Size
Auto Batch Mode
To enter Auto Batch Mode from Manual Mode press AUTO. When in Auto Batch Mode, the Auto icon displays and the batch
quantity shows in the lower right hand LCD display.
1. Change the batch size by pressing 10, 1, and 0.1.
a. Press 10 to increase the batch amount in increments of 10 units.
b. Press 1 to increase the batch amount in increments of 1 unit.
c. Press 0.1 button to increase the batch amount in increments of 0.1 units.
2. Pull the trigger to begin the ow. The solenoid valve, in the meter, automatically locks
the dispensing valve in the full open position.
3. Release the trigger, allowing it to fall back.
Auto Icon
Figure 7: Auto batch mode display
4. The ow automatically shuts o after the batch quantity has dispensed.
5. After the batch quantity has been dispensed the meter is a free ow-dispensing handle until the reset button is depressed.
a. To top off the fluid, pull the trigger to being the flow and release it when the correct amount has been pumped.
OTE:NIn case of an emergency or to interrupt a batch, the meter is equipped with an Emergency Override.
See "Emergency Override"
6. Press RESET when nished. The display resets and the meter is now ready for the next batch to be dispensed.
OPERATING MODE FUNCTIONS
These functions operate the same in Manual Mode and Auto Batch Mode.
Re-settable and Accumulated Totals
The meter has two flow totalizers, Re-settable Total and Accumulated Total.
1. Press and hold TOTA L to display Accumulated Total, after holding for three seconds the
display changes to Re-settable Total.
2. Resettotal displays the total uid dispensed since the Re-settable Total was last set
back to zero.
3. Press RESET while viewing Resettotal to set it back to zero.
4. Release TOTAL to return to the operating screen.
Figure 8: Re-settable total display
OTE:NThe Accumulated Total cannot be reset unless the user changes from English units to metric units or from metric to
English units. See "Change Unit of Measure" on page 9.
Emergency Override
In case of an emergency or to interrupt a batch, the meter is equipped with an Emergency Override which closes the valve,
immediately stopping fluid flow.
1. Press O to activate the Emergency Override.
2. After an Emergency Override, batching can continue by pulling up on the trigger.
Error Codes
The meter has one error code that may display:
SF0 (Scale Factor 0) The Scale Factor setting for the meter is set to 0.000.
The code provides an indication, at the meter, that there is an error in communication between the meter and keypad. To
correct the error, input a valid Scale Factor for the meter follow the instructions in "Change Scale Factor" on page 9. All other
error codes are for factory purposes only. To clear the meter, press RESET.
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Service
SERVICE
Low Battery
When the batteries need to be changed a progression of warnings appears on the meter
screen. First, the Low Battery icon will appear on the display, this means that the batteries
are getting low, and should be changed. When the icon begins to flash, the battery power
is too low, and meter functions are disabled.
Changing the Batteries
The battery compartment is located in the lower case on the underside of the
trigger guard.
1. Turn the unit face down.
2. Unscrew the two screws. Remove the battery door to expose the batteries.
3. Replace the old batteries. The meter takes four AA, alkaline, batteries. Battery polarity
markings are inside the battery compartment.
4. Dispose of used batteries properly, according to local regulations.
OTE:NChanging the batteries does not affect any of the programmed values or totals.
Figure 9: Low battery icon
Figure 10: Replacing the batteries
CHANGE FACTORY SETTINGS
Each meter is calibrated at the factory for use with motor oil. See "Change Scale Factor" on page 9 The Unit of Measure is also
selected prior to shipment.
Verify Firmware Version
The firmware version and code checksum are displayed by pressing and holding TOTAL and 1 simultaneously. The last two
digits on the lower right are the firmware version. Meters with version 16 or higher use the procedure outlined in this manual
for changing the unit of measure, scale factor and enabling or disabling the EPM functionality.
Programming
1. Press and hold TOTA L and AUTO simultaneously. PrG will appear on the display.
2. Release the buttons.
3. Press and release these buttons in order: 1, AUTO, 10, 0.1, and TOTAL.
4. The current unit of measure will now be ashing indicating that you have entered the
programming mode.
Figure 11: Entering programming mode
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AUT-UM-00933-EN-06
Calculate Scale Factor
Scale Factor Digits
Scale factor digits
Change Unit of Measure
The meter comes with an option to choose four different units of measure.
1. The current unit of measure will ash when Programming Mode is entered.
2. Press TOTA L to toggle amongst the four options; PT, QT, GAL, L.
3. When the correct unit of measure is displayed, press RESET to select it. The unit of
measure will stop ashing.
4. If L (liters) is selected, the decimal point will being to ash. The decimal point can either
be changed to a comma or a period. To do this press TOTAL .
5. If no scale factor changes are necessary, see "Save Changes".
Figure 12: Unit of measure display
CHANGING THE UNIT OF MEASUREMENT FROM METRIC TO ENGLISH OR FROM ENGLISH TO METRIC CLEARS THE
RE-SETTABLE TOTAL AND ACCUMULATED TOTAL.
Unit of Measure
Change Scale Factor
CHANGING THE SCALE FACTOR CHANGES THE ACCURACY OF THE METER, POTENTIALLY CAUSING IT TO OVERFILL OR
UNDER FILL. THIS HAS THE POTENTIAL TO CAUSE A MECHANICAL BREAKDOWN.
1. Press RESET to advance through the scale factor digits.
2. To change the selected number, press TOTAL.
OTE:NAll digits can be scrolled between 0 and 9 except the first. It can only be toggled
3. Press RESET to advance to the next digit in the scale factor.
4. Repeat steps 2 and 3 for all ve digits.
Save Changes
To save changes and exit programming mode:
1. Press and hold TOTA L and AUTO simultaneously.
2. The display will ash three times and go blank.
3. Press RESET and the display will turn back on.
Verify Changes
1. Verify unit of measure is correct.
2. Press and hold TOTA L and AUTO simultaneously to verify the scale factor is correct.
CALCULATE SCALE FACTOR
A Scale Factor is a number used to adjust meter accuracy. The Scale Factor is set at the factory using motor oil with a viscosity
of 10W. The primary use for Scale Factor recalibration is to batch fluids with different viscosities. If the fluid has a lower
viscosity, more fluid can slip past the meter gears without being detected. Changing the Scale Factor adjusts the meter to
compensate for the loss. The meter multiplies each pulse by the Scale Factor number to correct the accuracy when it converts
to the specified units. For an approximate Scale Factor for fluids of different viscosities, see "Chart of Approximate Scale Factors"
on page 10.
OTE:NThe meter’s original Scale Factor was written on the trigger when it was calibrated at the factory. It may have been
from 0 to 1 or from 1 to 0.
Figure 13: Scale factor display
revised after field installation. Use the Scale Factor showing on the display, not on the trigger.
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Dimensions
7.0 in. (177.8 mm)
CHANGING THE SCALE FACTOR WILL CHANGE THE ACCURACY OF THE METER, POTENTIALLY CAUSING IT TO OVERFILL
OR UNDER FILL. THIS HAS THE POTENTIAL TO CAUSE A MECHANICAL BREAKDOWN.
To view the current scale factor, press and hold TOTAL and AUTO simultaneously.
Absolute Scale Factor
For absolute scale factor, preform this test:
1. Run a measured amount of uid through the meter.
2. If the meter delivers 4.20 quarts and the display shows only 4.00 quarts, then the Scale Factor needs to be adjusted.
3. Divide what the meter delivered (4.20) by what the display shows (4.00). You get an error factor of (1.05).
4. The existing Scale Factor is 1.0123, as shown in steps 1 and 2 in "Verify Changes".
5. To calculate a new factor: 1.0123 (existing Scale Factor) x 1.05 (error factor) = 1.0629 (new Scale Factor).
6. Enter that number as described in the "Change Scale Factor" on page 9.
OTE:NUse the Scale Factor shown on the display, not on the trigger.
Chart of Approximate Scale Factors
FluidViscosity Scale Factor
Water/anti-freeze51.044
Anti-freeze181.007
Brake Fluid421.004
ATF801.002
10W1401.000
80W-904500.999
140W18000.993
Table 3: Fluid viscosity and scale factor
Figure 14: Scale factors for fluids with different viscosities
DIMENSIONS
11.3 in. (287.02 mm)
4.3 in. (109.22 mm)
Figure 15: Meter dimensions
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AUT-UM-00933-EN-06
SPECIFICATIONS
Maximum flow *10 gpm (38 lpm)
Minimum flow *0.25 gpm (1 lpm)
Operating pressure (maximum)1000 psi (67 bar)
Operating pressure (minimum)5 psi (0.35 bar)
Operating temperature (maximum)120° F (50° C)
Operating temperature (minimum)20° F (–5° C)
Accuracy (general)± 0.5%
Accuracy (anti-freeze)± 1.5%
5-digit LCD displayQuarts, Pints, Gallons, Liters
Inlet and outlet connections1/2 in. NPT (1/2 in. BSPP)
* Minimum and maximum flow range will vary with fluid viscosity
Table 4: Part numbers: inside meter
PARTS
Specications
1
2
Figure 16: Parts: back of meterFigure 17: Parts: front of meter
ItemDescriptionPart NumberItemDescriptionPart Number
1Battery holder assembly64103-0261Display assembly64103-023
2Bottom case with screws64103-0032EPM2 std. register assembly64103-024
Table 5: Part numbers - back of meter
Not shownSwivel, NPT, special fluids64082-001
Not shownRubber boot65546-001
Table 6: Part numbers - front of meter
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Electronic Preset Meter, Model EPM2-STD, Standard Series
1
ItemDescriptionPart Number
1Valve assembly64103-010
2Gear service kit with O-ring62896-001
3Trigger Assembly64103-005
2
3
Figure 18: Parts: inside meter
Table 7: Part numbers: inside meter
TROUBLESHOOTING
RELIEVE THE PRESSURE PRIOR TO CHECKING OR REPAIRING THE METER. MAKE SURE ALL VALVES, CONTROLS AND
PUMPS ARE OPERATING CORRECTLY.
SymptomPossible CauseRemedy
Battery icon is displayedBatteries are lowReplace batteries
Meter asleepPress RESET
Display blank
Loose battery connection
Batteries deadReplace batteries / press RESET
Meter not in Auto ModePress AUTO and program the batch size