WIKA contact pressure gauges: Switching and indicating with a single instrument

Wherever the process pressure has to be indicated locally and, at the same time, limit values must be monitored, contact pressure gauges find their application. The switch contacts make or break the circuit dependent upon the pointer position of the indicating measuring instrument. If the reading is significantly above or below a set value, they trigger an alarm, hence also the term “alarm contact”. Contact pressure gauges are also suitable for starting, stopping or switching processes.

Does elevation have any effect on the measuring result of a relative pressure measuring instrument?

No, the elevation does not have any effect because the pressure instrument measures the pressure differential from ambient pressure. See this blog for more information about pressure gauge readings.