ECONOMY FUEL & WATER FLOW METERS
SERIES GPI-01 Economy Digital Fuel & Water Meters 
(Was Model 317 01) (Was Model 318 01)
Meter Type
Economy Digital Totalizer, turbine type, battery powered that displays total gallons or liters. It does not display rate of flow.
How It Works
Magnetic pulses are picked up by a coil. The computer converts the pulses into a flow rate and totals.
Standard Features
- 2 Totals (1 Resettable Batch, 1 Cumulative)
- User Configurable to GPM, LPM or any Unit of Measure
- Digital Display with 4 Digits Starting at 0.1 (floating decimal)
- Totals Maximum of 9999
- Powered by (2) AAA Alkaline Batteries
- Auto On/Off
- Fuel Meter suitable for Gasoline (up to 15% alcohol), Diesel Fuel (up to 20% Biodiesel), and Kerosene
- Water Meter suitable for Water and Water Like Fluids
- 2 Year Limited Warranty
Specifications
| Fuel Meter (01A) | Water Meter (01N) | |
|---|---|---|
| CONNECTIONS (Standard) | 1" NPT (Female) x 1" NPT (Female) | 1" NPT (Female) x 1" NPT (Female) |
| CONNECTION ADAPTERS | (2) 1" MNPT x 3/4" FNPT Adapters and (1) 3/4" MNPT x 3/4" MNPT Nipple | - |
| FLOW RANGE | 3 - 30 GPM (10 - 100 LPM) | 3 - 30 GPM (10 - 100 LPM) |
| ACCURACY (Of Reading) | ± 5% | ± 5% |
| REPEATABILITY | ± 0.5% | ± 0.5% |
| PRESSURE RATING | 300 PSIG (21 Bar) | 150 PSIG (10.2 Bar) |
| TEMPERATURE RATINGS | 14°F to 130°F (-10°C to 54°C) | 14°F to 130°F (-10°C to 54°C) |
| PRESSURE DROP (At Full Capacity) | 1.5 PSIG (0.1 Bar) | 1.5 PSIG (0.1 Bar) |
| RECOMMENDED STRAINER SIZE | ~35 Mesh (500 Microns) | ~35 Mesh (500 Microns) |
| STRAIGHT PIPE REQUIREMENTS | None | None |
| WETTED MATERIALS | ||
| Body | Aluminum | Nylon |
| Bearings | Ceramic | Ceramic |
| Shaft | Tungsten Carbide | Tungsten Carbide |
| Rotor | Nylon | Nylon |
| Signal Generator | Ferrite | Ferrite |
| Retaining Rings | 316 Stainless Steel | 316 Stainless Steel |
| Seals | n/a | n/a |
| CONN. TO CONN. LENGTH | 4" (101.6mm) | 4" (101.6mm) |
 |  |  |
Options
- GPM or LPM Flow Totals
- ISO or BSPP Female Threads
Alternate Meters
- Digital Series: GPI-TM(NPT), GPI-A1
- Analog Series: M11
Replacement Parts
- None
Application Notes
- Saturated Steam Service: Not acceptable
- Potable Water: Not acceptable.
- Vacuum Service: Not acceptable
- Gaseous Service: Not acceptable
- General Non-Suitable Services: Fuel Meter is not designed for water. Both meters are not acceptable for deionized (DI) or ultra-pure water applications.
- Installation: Hand tighten Water meter connections. Limit display’s exposure to sun.
- Corrosion: Before ordering, verify all materials of our flow meters are compatible with the service media(s), intermittently used cleaners, the environment, and cleaning processes in conjunction with the temperatures and pressures of the application(s) and future applications. John C. Ernst Co. does not make chemical compatibility recommendations. Compatibility is the responsibility of the user and/or specifying party.
Model Number Matrix
