The Capsu-Photohelic® Switch/Gages with the time-proven Magnehelic® gauge design serves as precise, versatile, highly repeatable pressure switches. The Capsu-Photohelic® switch/gauge uses an encapsulated sensing element for application in both liquids and gases at pressures to 500 psig (34 bar). The guage comes in optional cast brass case for use in water or water based liquids. Two phototransistor actuated, DPDT relays are used for low/high limit control.
The knobs on gauge face controls the easy to adjust set point indicators. Individual set point deadband measures one pointer width which is less than 1% of full scale. The set points can be interlocked to provide variable deadband which is ideal for control of pumps, etc.