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.

Elster - Model 040 Series -Field Regulator