Keco Engineered Controls: Process Control Instrumentation
Temperature > Switches

SOR temperature switch with capillary & bulb

Temperature Switches

Temperature switches are devices which normally use a temperature sensor like an RTD or thermocouple to measure the temperature of gases, liquids, and steam in pipes, tanks, and other vessels.

The measurement is compared to a setpoint in the switch mechanism or electronics which then sends an electronic or electric output when the temperature deviates from the setpoint more than a chosen amount.

Outputs are often used as alarms, but can also be used to operate other devices such as on/off control valves used to help control the temperature in a building, pipe, tank, or other vessel.