Thermocouple & RTD Calibrators

Thermocouple and RTD calibrators are precision instruments used to simulate, source, and measure temperature sensor signals in industrial and laboratory environments. They enable technicians to verify the accuracy of temperature measurement systems by generating known thermocouple EMF voltages or RTD resistance values across wide temperature ranges. These instruments are essential for maintaining calibration traceability in process industries where accurate temperature measurement directly impacts product quality and operational safety.

Deployed in manufacturing plants, refineries, power stations, and pharmaceutical facilities, thermocouple and RTD calibrators support both bench and field calibration of transmitters, recorders, controllers, and data acquisition systems. Many modern calibrators combine source and measure capability with milliamp loop simulation, enabling complete process loop verification with a single instrument.

Typical Applications

Calibrating temperature transmitters and controllers in industrial process automation
Verifying RTD and thermocouple sensor accuracy in pharmaceutical and food processing plants
Simulating sensor fault conditions to test safety instrumented systems (SIS)
Field verification of temperature inputs in PLC and DCS control systems
Scheduled calibration and preventive maintenance in power generation and petroleum refining

Popular Brands

Fluke Calibration offers high-accuracy bench and field calibrators widely used in process industries. PIE (Practical Instrument Electronics) is known for portable diagnostic calibrators. Altek produces compact loop calibrators suited for routine maintenance, while Ectron specializes in precision thermocouple simulators for laboratory and aerospace applications.