The gold standard for low flow measurement
The rotary piston gas meters GM16 meet the highest demands on the reliable and precise reference measurement of low flow up to 0.01 m³/h. You achieve an excellent measuring accuracy of 0.5% MW + 0.005% EW. Both variants – with 1 or 2 HF pulse generators – are suitable for operation up to 6 bar overpressure. The new generation of reference gas meters is not only suitable for air, but also for hydrogen, natural gas and other non-flammable and non-aggressive gases.
With the continuous, absolutely pulsation-free and highly precise flow measurement,
the reference gas meters from Ehrler Prüftechnik are the gold standard in the field of low flow measurement – also for hydrogen.
Technical data
Gas meter GM16, 1 HF
| Qmin. | 0.01 m³/h* |
| Qmax. | 16 m³/h |
| Measurement range | > 1:1000 |
| Measurement accuracy (@atmospheric conditions, air) | 0.5 % MW + 0.005 % EV** |
| Pulse value | 77.000 imp/m³ |
| HF pulse generator | 1 piece |
| Medium | air, nitrogen, natural gas, helium, hydrogen, other non-flammable and non-aggressive gases |
| Connection | DIN flange DN20 PN10 |
| Installation length | 130 mm |
| Operating pressure | up to 6 bar overpressure*** |
**MV = from the measured value, EV = from the end value
***Versions for higher operating pressure on request
Gas meter GM16, 2 HF
| Qmin. | 0.016 m³/h* |
| Qmax. | 16 m³/h |
| Measurement range | > 1:1000 |
| Measurement accuracy (@atmospheric conditions, air) | 0.5 % MV + 0.005 % EV** |
| Pulse value | 77,000 imp/m³ |
| HF pulse generator | 2 piece |
| Medium | air, nitrogen, natural gas, helium, hydrogen, other non-flammable and non-aggressive gases |
| Connection | DIN flange DN20 PN10 |
| Installation length | 130 mm |
| Operating pressure | up to 6 bar overpressure*** |
**MV = from the measured value, EV = from the end value
***Versions for higher operating pressure on request
Measuring principle
The reference gas meters GM16 operate according to the direct displacement principle (RPD -rotary positive displacement), in which two counter-rotating pistons convey a fixed volume from the inlet to the outlet of the gas meter with each full revolution. Due to the specially shaped pistons, an absolutely pulsation-free continuous operation can be realized (patent pending).
Applications
- Industrial applications
- Calibration & transfer standards
- Measurement sections for test benches
- Flow measurement of hydrogen
Are you interested in further details?
Are you interested in further details?
Take a look at the product brochure! Get to know our test benches and do not hesitate to present us your requirements! We will be happy to advise you on special requirements!
