Pressure Switches

Pressure switch measuring systems (IKDRDa,RDII, RDIA) are designed for monitoring absolute, gage and differential pressures and generating electric signals once the preset values are reached.

IKDRDa — IKDRDa-50, -100, -400, -830, -1000, -2500; IKDRDf — 0,016…100; RDII — RDII-0,16-0,075-3; RDII-0,6-0,44-3; RDII-1-0,73-3; RDIA — RDIA-830 480-0; RDIA-830-820-3; RDIA-830-830-3.

The operating principle is based on conversion of pressure into movement of a sensing element (such as diaphragm, bellows or armature). In IKDRDa systems an induction transformer is used to change the output signal phase by 180° when the armature element passes the electrical zero. In RDII and RDIA systems movement of the sensing element triggers the contact block and causes a signal output