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Product Specifications:
| Item | Flowmeter |
| Accuracy % | +/-5% |
| Compatible Flow Materials | Def, Water |
| Connection Size | 1" |
| Connection Type | NPT |
| Display Type | Digital |
| Flow Material | Def |
| Flow Range | 3-30 GPM |
| Flowmeter Type | Turbine |
| Fluid Temp. | +14°F to +130°F |
| Fluid Temp. Range | 14 To 130 Deg. F |
| Housing Material | Nylon |
| Includes Totalizer | Yes |
| Inlet/outlet Connection | 1" |
| Inlet/outlet Connection Type | 1" |
| Manufacturer Warranty Length | 1 yr. |
| Master Totalizer | 999999 gal. |
| Max. Flow Rate | 30 GPM |
| Max. Operating Pressure | 150 psi |
| Max. Temp. | 130°F |
| Max. Viscosity | 40 SUS |
| Media Temperature (maximum) | 130°F |
| Media Temperature Range | 14°F to 130°F |
| Media Type | DEF |
| Min. Flow Rate | 3 GPM |
| Min. Media Temp. | 14°F |
| Mounting Orientation | Universal |
| Output Amps | 4-20 mA |
| Output Type | 4-20 mA |
| Overall Height | 2.5" |
| Overall Width | 2" |
| Overall Height | 2 3/8" |
| Overall Length | 4" |
| Overall Width | 2 1/8" |
| Pressure Drop - 100% Flow | 5 psi |
| Pressure Drop - 100% Flow (psi) | 5 |
| Pressure Drop - 50% Flow | 2.5 psi |
| Pressure Drop - 50% Flow (psi) | 2.5 |
| Product Type | Gpi Electronic Water Meter |
| Rotor Material | Nylon |
| Series | 01A Series |
| Shaft Material | Tungsten Carbide |
| Standards | Ce Certified |
| Termination | Not Listed |
| Termination Type | Not Listed |
| Unit Of Measure | Gallons, Liters |
| Wetted Material | Stainless Steel, Ceramic, Ferrite, Nylon, Tungsten Carbide |
| Wetted Material | Aluminum, Ceramic, Nylon, Stainless Steel, Tungsten Carbide |
Shipping Info:
| Ship weight (kg) | 0.34 |
| Ship height (cm) | 6.35 |
| Ship length (cm) | 10.16 |
| Ship width (cm) | 5.08 |
| HS code | 9026204000 |
| Country of Origin | US |
Product Details:
GPI 01A31GM-U (01N31GM-U) electronic digital fuel meter measures DEF (diesel exhaust fluid), also known as urea. This compact electronic device is excellent at taking fuel measurements and has an accuracy of +/-2.5%.
Features:
- GPI 01A31GM-U electronic digital fuel meter has a large LCD screen for easy observation.
- It is powered by two easy-to-replace AAA alkaline batteries.
- This fuel meter has nylon construction and sealed electronic circuitry to protect it from damage.
- It functions well on pumps having flow within the range of 3 - 30 GPM.
- This electronic fuel meter comes with permanent factory calibration for petroleum measurements in gallons.
Compatible Accessories:
- Fuel Strainers: These strainers have a mesh size of 500 microns to stop debris from entering the meter.
Standards and Approvals:
- CE
- FM
Frequently Asked Questions:
Q. Can this GPI fuel meter withstand severe temperatures?
A. GPI 01A31GM-U electronic digital fuel meter can work at temperatures ranging from 14 to 130 degrees Fahrenheit.
Q. How to install this GPI fuel meter?
A.
- GPI 01A31GM-U can be mounted on the fuel hose's end or directly alongside it, in either horizontal or vertical orientation.
- Remove the nozzle from the hose and wrap all connections with three to four wraps of thread tape.
- Attach the meter to the hose with the arrow pointing to the flow direction.
- Attach the nozzle to the meter.
- Use the enclosed 3/4 inch fitting.
- Tighten the meter at the housing ends with a wrench.
Q. How to replace the batteries of GPI fuel meters?
A.
- Unscrew the four screws from the face of the meter and lift the faceplate.
- Replace the old batteries with the new ones and check for corrosion on the terminals.
- Fasten the screws on the faceplate and make sure that the O-ring is perfectly seated to avoid moisture entry.
Product Variants
| Product | Model | Max. Operating Pressure | Display Type | Power Source | Overall Height | Overall Width | Connection Size | Min. Flow Rate | Max. Flow Rate | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
01A31GM | 300 psi | Digital | AAA Batteries | 2 1/2" | 2" | 1" | 3 GPM | 30 GPM | €347.89 | |
![]() |
01A31LM | 300 psi | Digital | AAA Batteries | 2 1/2" | 2" | 1" | 3 GPM | 30 GPM | €331.65 | |
![]() |
01A52LM | 300 psi | LCD | AAA Alkaline Batteries | - | - | 1" | 3 GPM | 30 GPM | - | RFQ
|
![]() |
01A12LM | 300 psi | LCD | AAA Alkaline Batteries | - | - | 1" | 3 GPM | 30 GPM | - | RFQ
|
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
GPI 01A31GM-U 113255-9 Electronic Fuel Meter, 3 To 30 gpm Flow Range, 1 FNPT
€377.03 /unit


