History

Facts and milestones in product development
1836
Formation of the American Meter Company
1848
On the 1st of October, Elster was founded in Berlin and began producing gas lamps.
1853
Production of large station gas meters.
1865
Formation of G. Kromschroeder AG.
1876
The factory in Mainz was built.
1878
Emil Haas obtained a patent for the principle of a rigid limited space for the volume measured, which is still valid for the production of our diaphragm gas meter today.
1936
The first horizontal turbine gas meter was launched.
1952
PTB approval was granted for the first horizontal operating turbine gas meter (PTB = German Approval Authority).
1955
Development of the first mechanically driven volume corrector.
1961
Development of the Quantometer for in-plant measurement.
1965
Foundation of Instromet in the Netherlands.
1971
SM-RI Turbine Meter and Q-RI Quantometer were launched.
1976
Development of a turbine gas meter with interchangeable measuring cartridge suitable for calibration.
1980
Development and production of electronic volume correctors and flow computers by Instromet.
1981
Establishment of an instrument flow computer and volume correctors division in the UK
1982
Development of SM-RI Turbine Meter and Q-75 Quantometer Multi-Index.
Approval was granted for the first electronic volume corrector called EMU that uses micro process technology.
1987
Announcement of the long-term pulse collecting system called LIS-100 to the global market.
Launch of the BK-G4 Diaphragm Gas Meter with improved performance.
1990
Launch of a battery-driven EK-88 Volume Corrector and the
GAS-ASS station management system by FlowComp.
1991
Launch of an IRM-A Rotary Meter.
1992
Process gas chromatographs developed for energy measurement.
1993
Introduction of mechanical temperature correction on BK-G4 and BK-G6.
1995
Launch of a RVG Rotary Meter series.
Development of the ultrasonic meter for non-fiscal metering.
1997
Development of the M2R Compact Gas Pressure Regulator (max 4 bar).
1999
Launch of the IRM-3 Rotary Meter.
2001
Development of a new generation of volume correctors known as EK210 and EK230 and of gas meters with an Absolute-ENCODER technology.
2003
Flow Comp gas-net product line launched. New generation of industrial diaphragm gas meters BK-G40 and BK-G65. PTB approval for a gas analyser system gas-lab Q1.
Launch of high-pressure regulator MR 50.
2004
Introduction of the modular index concept Z6 for diaphragm gas meters, together with CHEKKER and Absolute Encoder technology.
2005
Merger of Elster and Instromet.
Turbine meter series TRZ2 were launched.
2006
Introduction of the new industrial diaphragm gas meter BK-G100.
Approval of the air operated closed loop high pressure test rig in Mainz.
2007
PTB approval for Encal 3000 gas chromatograph.