Badger Meter Oval Gear EPM2-STD User manual

Electronic Preset Meter
Model EPM2-STD, Standard Series
AUT-UM-00933-EN-07 (April 2021) User Manual

Electronic Preset Meter, Model EPM2-STD, Standard Series
AUT-UM-00933-EN-07
CONTENTS
Scope of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Warning Symbol Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Meter Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
LCD Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Meter Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Relieve System Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Flushing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Attach Meter to Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Attach Nozzle to Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Meter Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Auto Batch Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Operating Mode Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Accumulated Total and Resettable total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Emergency Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Low Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Change Factory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Verify Firmware Version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Enter Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Calculate Scale Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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AUT-UM-00933-EN-07
Scope of this Manual
SCOPE OF THIS MANUAL
This manual describes how to install, calibrate and operate an Electronic Preset Meter. Read this manual before attempting
any installation of the meter. Keep this manual available for future use.
SAFETY
Warning Symbol Explanation
Indicates a hazardous situation, which, if not avoided, will result in death or serious personal injury.
WARNING Indicates a hazardous situation, which, if not avoided, could result in death or serious personal injury.
Indicates a hazardous situation, which, if not avoided, could result in minor or moderate personal injury or
damage to property.
Warnings
WARNING
IMPROPER GROUNDING, POOR VENTILATION, OPEN FLAMES OR SPARKS CAN CAUSE A HAZARDOUS CONDITION AND
RESULT IN AN EXPLOSION OR FIRE AND CAUSE SERIOUS INJURY.
• Make sure the fluid system is properly grounded.
• 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.
WARNING
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.
WARNING
THIS METER IS DESIGNED SPECIFICALLY TO DISPENSE PETROLEUM PRODUCTS. DO NOT USE FOR ANTIFREEZE
(ETHYLENE GLYCOL) SOLUTION, WINDSHIELD WIPER FLUID, BRAKE FLUID OR WATER BASED SOLUTIONS
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AUT-UM-00933-EN-07
Meter Buttons
METER BUTTONS
Used to enter the batch quantity to be dispensed.
Used to display the accumulated total of fluid dispensed as well as the
resettable total during Auto Batch and Manual mode.
Used to enter and exit the Manual or Auto Batch mode.
• Used in Manual mode to clear the dispensed quantity.
• Used in Auto Batch mode to clear the dispensed quantity and reset
the meter for the next batch.
• Used to reset the resettable total dispensed while pressing the
TOTAL button.
Used to activate Emergency Override, which stops the flow.
Figure 1: Meter Buttons Table 1: Button locations and descriptions
LCD DISPLAY
12
3
4
5
6
7
1. Displays Resettable Total, Accumulated Total and Scale Factor.
2. Displays Unit of Measure.
3. Not used.
4. Displays preset batch quantity.
5. Not used.
6. Indicates that the unit is in Auto Batch mode.
7. Indicates that the unit has a low battery.
Table 2: LCD display description
Figure 2: LCD Display
METER INSTALLATION
Relieve System Pressure
WARNING
THIS EQUIPMENT STAYS PRESSURIZED UNTIL THE PRESSURE IS MANUALLY RELIEVED.
To reduce the risk of injury from fluid spray from the meter, whenever you:
• Are instructed to relieve pressure.
• Stop dispensing.
• Check, clean or service any system equipment.
• Clean or install nozzles.
Follow this procedure:
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 the uid meter in the system.
4. Leave the meter open until ready to pressurize the system.
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AUT-UM-00933-EN-07
Meter Installation
Grounding
WARNING
THE DISPENSING SYSTEM MUST BE GROUNDED TO PREVENT STATIC SPARKS AND RESULTING EXPLOSIONS.
Movement of fluids through the dispensing system can create static electricity which can cause static sparks. Static sparks
can ignite volatile fumes, causing an explosion and fire. Grounding reduces the risk of static sparking. Ground all system
components according to local, state and federal codes.
• Pump: follow manufacturer's recommendations
• Air and Fluid Hoses: use only grounded hoses
• Air Compressor: follow manufacturer's 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. 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.
2. Slowly open the main uid valve.
3. Place the hose end in a waste container. Make sure the hose is secure so no uid leaks during ushing.
4. Slowly open the dispense valve and allow enough uid to pass through it to be sure that the system is clean.
5. Close the dispense valve.
6. Repeat this process 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 (Figure 3).
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 the meter model.
Figure 3: Apply thread sealant
2. Insert the metal end of the hose into the swivel (Figure 4).
Figure 4: Insert hose into swivel
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AUT-UM-00933-EN-07
Meter Operation
3. Tighten completely with an open-ended, adjustable wrench (Figure 5).
Figure 5: Use wrench to tighten
Attach Nozzle to Meter
1. Apply Loctite 243 sealant, or equivalent, to the end of the nozzle.
2. Thread the nozzle onto the opposite end of the meter where the hose is installed
(Figure 6).
Figure 6: Thread nozzle onto meter
3. Screw the nozzle in tightly with an open-ended, adjustable wrench (Figure 7).
4. Open all dispense position shuto valves.
5. Start the pump to pressurize the system.
6. Before use, purge all air from the uid lines and dispense valve(s). Failure to do this can
result in inaccurate measurement.
Figure 7: Tighten nozzle with wrench
METER OPERATION
OTE:NThe keypad AUTO button is used to toggle between Manual and Auto Batch mode. If liquid has been dispensed, press
RESET to set the meter back to zero before pressing AUTO.
Manual Mode
In Manual mode, the meter operates as a free-flow dispensing handle.
1. Pull the trigger and hold to dispense the uid. How far the trigger is pulled determines
the speed of ow. The display shows the amount dispensed.
2. Release the trigger to stop the ow when the desired amount has been dispensed.
3. Press RESET once to reset the counter display to zero.
Figure 8: Manual mode screen
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AUT-UM-00933-EN-07
Operating Mode Functions
Auto Batch Mode
Auto Batch mode allows you to program a batch size, then dispense it with a pull of the trigger. When in Auto Batch mode, the
AUTO icon displays in the lower left of the LCD screen and the batch quantity displays in the lower right.
1. Press AUTO to enter Auto Batch from Manual mode.
2. Change the batch size by pressing 10,1, and 0.1.
◊ Press 10 to increase the batch amount in increments of 10 units.
◊ Press 1to increase the batch amount in increments of 1 unit.
◊ Press 0.1 button to increase the batch amount in increments of 0.1 unit.
OTE:NWhen the numbers reach a value of 9 and the button is pressed again, they roll
over to 0, but do not add a number to the column to the left. The maximum batch
size is 99.9.
Auto Batch Size
Auto Icon
Figure 9: Auto batch mode display
3. Fully pull the trigger and release to begin the ow. There is a click sound that indicates that the solenoid valve in the meter
has automatically locked the dispensing valve in the full open position. The ow automatically shuts o after the batch
quantity has dispensed, and another click sound can be heard.
OTE:NIf a different amount than the batch size is dispensed, see "Change Scale Factor" on page9.
In case of an emergency or to interrupt a batch, the meter is equipped with an Emergency Override.
See "Emergency Override" for instructions.
If the meter loses flow or is disconnected, the valve will automatically close. Once it is reconnected, you can resume
flow by pulling the trigger.
4. Press RESET when nished. The display resets and the meter is ready for the next batch to be dispensed.
OTE:NAfter the batch quantity has been dispensed, the meter is a free-flow dispensing handle until the reset button is
pressed, and can be operated as if in manual mode. See "Manual Mode" on page6 for instructions.
OPERATING MODE FUNCTIONS
These functions operate the same in Manual mode and Auto Batch mode.
Accumulated Total and Resettable Total
The meter has two flow totalizers, the accumulated total and resettable total. The accumulated total is the total fluid
dispensed. The resettable total (RESETTOTAL) is the total fluid dispensed since it was last reset.
1. Press and hold TOTAL to display the totals. The display switches between both totals
every few seconds while the buttons are held.
2. Press RESET while viewing RESETTOTAL (Figure 10) to set it back to zero.
3. Release TOTAL to return to the operating screen.
OTE:NThe accumulated total cannot be reset unless the user changes from English
to metric units or from metric to English units. See "Change Unit of Measure" on
page9 for instructions. Figure 10: RESETTOTAL screen
Emergency Override
In case of an emergency or to interrupt a batch, the meter is equipped with an Emergency Override which closes the
dispensing valve, immediately stopping fluid flow. Press Oto activate the Emergency Override. You can pull the trigger
afterwards to resume flow.
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 indicates that there is a communication error between the meter and the keypad. To correct the error, follow the
instructions in "Change Scale Factor" on page9 to input a valid Scale Factor. All other error codes are for factory purposes
only. To clear the meter, press RESET.
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AUT-UM-00933-EN-07
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 appears on the display, indicating the batteries are
getting low and should be changed. When the icon begins to flash, battery power is too
low and meter functions are disabled.
Figure 11: Low battery icon
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 and 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 12: 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
Display the firmware version and code checksum by pressing and holding TOTAL and then pressing and holding 1. 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.
Enter Programming Mode
1. Press and hold TOTAL and AUTO simultaneously. After a few seconds, PrG appears 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 ashes, indicating that you have entered programming
mode.
Figure 13: Entering programming mode
Page 8 April 2021

AUT-UM-00933-EN-07
Change Factory Settings
Change Unit of Measure
OTE:NWhen Programming mode is entered, the current unit of measure flashes.
1. Press TOTAL to cycle through the four options; PT, QT, GAL, L.
2. When the correct unit of measure is displayed, press RESET to select it. The unit of
measure stops ashing and the rst number of the Scale Factor starts ashing.
OTE:NIf L (liters) is selected, the decimal point begins to flash. Press TOTAL to toggle
between decimal and comma. Press RESET to select it and continue to the
Scale Factor.
If no scale factor changes are necessary, see "Save Changes" If they are needed, continue to
"Change Scale Factor"
Unit of Measure
Scale Factor Digits
Figure 14: Unit of measure display
CHANGING THE UNIT OF MEASUREMENT FROM METRIC TO ENGLISH OR FROM ENGLISH TO METRIC CLEARS THE
RESETTABLE TOTAL AND ACCUMULATED TOTAL.
Change Scale Factor
WARNING
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 TOTAL to change the selected number.
OTE:NAll digits can be scrolled between 0 and 9 except the first. It can only be toggled
between 0 and 1.
2. Press RESET to advance to the next digit in the scale factor.
3. Repeat for all ve digits.
Scale factor digits
Figure 15: Scale factor display
Save Changes
To save changes and exit programming mode:
1. Press and hold TOTAL and AUTO simultaneously. The display ashes three times and goes blank.
2. Release the buttons, then press RESET and the display turns back on.
Verify Changes
1. Verify that the unit of measure is correct.
2. Press and hold TOTAL and then AUTO to verify that 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 different
viscosity, the scale factor must be changed to accurately measure it. The meter multiplies each pulse by the scale factor 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
revised after field installation. Use the scale factor shown on the display, not on the trigger.
To view the current scale factor, press and hold TOTAL and then AUTO.
Page 9April 2021

AUT-UM-00933-EN-07
Dimensions
Absolute Scale Factor
For absolute scale factor, perform this test:
1. Run a batch through the meter.
2. If the meter measures a dierent amount than the batch amount, the scale factor needs to be adjusted. For example, if you
run a 4.20 quarts batch and the display shows only 4.00 quarts, the scale factor needs adjustment.
3. Divide the amount of liquid in the batch (4.20) by what the display shows (4.00). The result is the error factor (1.05).
4. Find the current scale factor by pressing and holding TOTAL and then AUTO. For this example the current scale factor is
1.0123.
5. Multiply the current scale factor by the error factor to nd the new scale factor (1.0123 × 1.05 = 1.0629).
6. Enter the new scale factor as described in the "Change Scale Factor" on page9.
OTE:NUse the current scale factor shown on the display, not on the trigger.
Chart of Approximate Scale Factors
Fluid Viscosity Scale Factor
Automatic
Transmission Fluid
(ATF)
80 1.002
10W 140 1.000
80W-90 450 0.999
140W 1800 0.993
Table 3: Fluid viscosity and scale factor
Figure 16: Scale factors for fluids with different viscosities
DIMENSIONS
11.3 in. (287.02 mm)
A
BC
A B C
11.3 in. (287.02 mm) 4.3 in. (109.22 mm) 7.0 in. (177.80 mm)
Figure 17: Meter dimensions
Page 10 April 2021

AUT-UM-00933-EN-07
Specications
SPECIFICATIONS
Flow Range* 0.25…10 gpm (1…38 lpm)
Operating Pressure Range 5…1000 psi (0.35…69 bar)
Operating Temperature Range 20…120° F (–7…49° C)
Accuracy ± 0.5%
5-digit LCD Display Quarts, Pints, Gallons, Liters
Inlet and Outlet Connections 1/2 in. NPT (1/2 in. BSPP)
* Minimum and maximum ow range will vary with uid viscosity
PARTS
Back of Meter Front of Meter
1
2
Item Description Part Number Item Description Part Number
1 Battery holder assembly 64103-026 1 Display assembly 64103-023
2 Bottom case with screws 64103-003 2 EPM2 std. register assembly 64103-024
Not shown Swivel, NPT, special fluids 64082-001
Not shown Rubber boot 65546-001
Page 11April 2021

Electronic Preset Meter, Model EPM2-STD, Standard Series
Inside Meter
1
2
3
Item Description Part Number
1 Valve assembly 64103-010
2 Gear service kit with O-ring 62896-001
3 Trigger assembly 64103-005
TROUBLESHOOTING
WARNING
RELIEVE THE PRESSURE PRIOR TO CHECKING OR REPAIRING THE METER. MAKE SURE ALL VALVES, CONTROLS AND
PUMPS ARE OPERATING CORRECTLY.
Symptom Possible Cause Remedy
Battery icon is displayed 1. Batteries are low 1. Replace batteries
Display is blank 1. Meter is asleep
2. Loose battery connection
3. Batteries are dead
1. Press RESET
2. Remove battery pack and check battery connection,
then press RESET
3. Replace batteries, then press RESET
Meter does not latch
forbatching
1. Meter is not in Auto mode
2. Meter was not reset after
prior batch
3. Batteries are low
1. Press AUTO and program the batch size
2. Press RESET
3. Check for battery icon, replace batteries, and then
press RESET
Slow or no fluid flow 1. Filter is clogged
2. Pump pressure is low
3. Foreign material is
jammingmeter
1. Clean or replace the lter in the swivel nut
2. Turn up the pump pressure
3. Contact your local distributor for repair
Meter inaccurate 1. Scale Factor not correct
foruid
1. Enter Program mode, check and reset the scale factor
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