Temperature

Temperature transmitters

Temperature transmitters convert the temperature-dependent change in resistance of resistance thermometers or the temperature-dependent change in voltage of thermocouples into a standardised output signal (e.g. 0 … 10 V or 4 … 20 mA). With these standardised signals, measured temperature values can be transmitted easily and reliably.

Temperature switches

A temperature switch or thermal switch is used to open and close switch contacts. The switching status of the temperature switch changes depending on the input temperature. This function is used as protection against overheating or overcooling. Basically, the thermal switches are responsible for monitoring the temperature of machinery and equipment and are used for temperature limitation.

Thermocouples

Thermocouples are temperature sensors that generate a voltage directly dependent on temperature. Compared to resistance thermometers, they are particularly suited for high temperatures up to 1,700 °C. Instrument designs from mineral-insulated sheathed cable are very resistant against extremely high vibration loads (depending on instrument model, sensor element and wetted materials).

Thermowells

As an important component of a temperature measuring location, the thermometer thermowell, also known as protection tube or pipewell, is responsible for sealing the process from the environment. Alongside the protection of the temperature sensors, thermowells also offer protection for the environment and the operating personnel. Aggressive media as well as high pressures and flow rates are kept away from the actual temperature probe, which enables the measuring insert to be changed without interrupting the process and thus during ongoing operation.