RMG presents the Primus 400 compact volume corrector

The informative value of a Gas Meter's reading is limited due to the compressibility of gases. In contrast to measurements in the household sector, the values for pressure and temperature, on which the amount of gas behind a cubic meter on the counter depends, vary. Fortunately, there is a law that can be used to calculate the amount of gas in the measured volume (Fig. 1). The calculation of the gas quantity is called Volume Corrector. There are basically two methods: state conversion and density conversion, whereby state conversion has become established. The calculation is carried out using pressure and temperature. For larger systems, cassette devices for installation in control cabinets are used, whereas for smaller quantities, compact volume correctors are used in which the pressure transducer is installed in the housing.

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