About the Pneumatic Calibration/Purge Valve
The pneumatic calibration/ purge valve is a 3 way, 8 chan-nel (8P-3T) pneumatic logic valve ideal for calibrating up to 8 individual pressure transducers of similar pressure range. A 90-120 psi control pressure is required to switch the valve from the default measurement mode to the calibration, purge, or isolate mode. The maximum opera-ting pressure of this valve is 750 psi. The maximum purge pressure is 500 psi.
In calibration mode, input pressures are isolated allowing the user to apply a calibration to the 8 sensors that are now manifolded together.
The Purge mode allows a purge pressure to be input and purge condensation or contamination back through the input tubes and away from the transducer.