Gas measuring & monitoring

for gases e.g. natural gas, nitrogen, hydrogen

Regardless of whether recording, controlling or measuring – in the field of gas measurement technology you will find a wide variety of test benches and systems that we have optimized for the field of measurement technology in the field of natural gas and hydrogen. This includes reference gas meters for low-flow measurements, calibration test bench for gas meters in the areas of end-of-line, development or endurance testing and closed-loop or HPPP systems for the overpressure calibration of gas meters. Further details are shown in the table below. In addition, we show two other systems here – the GasPro mobile gas sampler for representative gas sampling to determine the gas quality in the gas network and a Wobbe Control System, a natural gas supply station with a control system for constant calorific value. Our flow measurement technology is therefore specifically tailored to gas technology.

Test item measurement and data acquisition evaluation of various gas meter types
Measurement technology in Ex areas, etc.

Real Gas Loop

Flow calibration of technical and combustible gases

Calibration test bench for gas meters

Calibration of domestic gas meters (G1.6… G400).

RPD Reference gas meters

Reliable and accurate reference gas flow measurement down to 0.01 m³/h. Hydrogen approved.

RPD Gas meter box

Mobile calibration system for flow meters. Hydrogen approved.

HPPP480 Calibration system for gas meters with natural gas

Calibration system for gas meters with natural gas.

GasPro – Mobile gas sampler

Representative cyclical gas sampling to determine gas quality in the gas network

Applications

Calibration of technical and combustible gases
Calibration of gas meters: diaphragm gas meters, ultrasonic meters, thermoelectric gas meters
Low-flow measurement
Overpressure calibration
Determination of natural gas quality
End of Line (EoL) and endurance test

Features

Low & high pressure ranges

ATEX conformity

High measurement accuracy

Closed Loop Design

Specifications

	Reference gas meter	GMC gas meter calibration	Development / endurance test benches	Closed Loop test bench	HPPP – High Pressure Piston Prover	Real Gas Loop
Pressure range	Atmospheric up to 6 bar	Atmospheric	Atmospheric	Overpressure up to 100 bar	15 to 100 bar overpressure	Up to 16 bar gauge pressure
Medium	Air, other gases on request	Air, other gases on request	Natural gas, other gases on request	Air, natural gas, other gases on request	Natural gas	Air, nitrogen, helium, hydrogen, natural gas and mixtures with natural gas, other non-flammable and flammable gases
Measurement section	Rotary piston gas meter	Critical nozzles	Critical nozzles, orifice plates, gas meters and others	Gas meter	Piston in pipe section	Gas meter, critical nozzles
Measurement principle	Direct displacement principle with two opposing pistons	Constant flow through critical nozzle; different flows through nozzle combination	Depending on the application	Evaluation of the reference according to the state of the art	Passive, by a driven piston (driven by the gas flow) in a honed tube	Closed Loop Design
Flow range	0.01…16 m³/h	0.016…160 m³/h	0.04…16 m³/h, 0.8…25 m³/h, others on request	1…1600 m³/h, larger ranges on request	8…480 m³/h	1:2500
Measurement accuracy	0.5 % MV	0.2…0.3 % MV	Depending on the measuring principle	Depending on the flow	Up to 0.07 % MV	0.2 % MV
Temperature range	10…40 °C	10…40 °C	0…50°C	10…40 °C	18…25 °C	18…25°
Key Benefits	Continuous and absolutely pulsation-free measurement of low-flow using a reference gas meter	User-friendly end-of-line testing of domestic gas meters	Endurance and development tests of gas meters with natural gas (ATEX compliant)	Overpressure calibration of flowmeters	Lowest measurement uncertainty with overpressure calibration of natural gas	Flow calibration of technical and combustible gases, Best measurement uncertainties