Absolute pressure gauges with diaphragm , nominal size nd 100 , 160 with or without electrical alarm contacts
4.
There is no connection between the pressure measurement of the absolute pressure gauge and the fluctuation of the atmospheric pressure . therefore , the gauge is suitable for measuring gas and liquid
5.
Absolute pressure gauges are always used when - particularly with measurement of low pressure or vacuum - influence from atmospheric air pressure fluctuations which could falsify measurements has to be ruled out
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