The analogue pneumatic portable calibrator Model 8185 is designed for the supply and measurement of high pneumatic pressures. Model 8185 can be used for calibrating and testing high pressure transmitters, pressure switches, safety valves, etc. The built-in high pressure gas storage system makes it possible to use this test-unit at all locations, independent of any external pressure source. The analogue pneumatic portable calibrator Model 8185 is designed for the supply and measurement of high pneumatic pressures. Model 8185 can be used for calibrating and testing high pressure transmitters, pressure switches and safety valves