Thermometers with switch contacts

Wherever the process temperature has to be indicated locally and, at the same time, limit values must be monitored, thermometers with switch contacts find their application. The switch contacts make or break the circuit dependent upon the pointer position of the indicating measuring instrument. If the reading is significantly above or below a set value, they trigger an alarm, hence also the term “alarm contact”. The instruments are also suitable for starting, stopping or switching processes.

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FAQ

What is an isolating amplifier?

The isolating amplifier transmits digital signals from the hazardous area. The signal transmitters can be either sensors per DIN 19234 (NAMUR) or mechanical contacts. The input is securely isolated from the output and the power supply in accordance with DIN EN 5002 ... More

When does one use a gas actuated thermometer with capillary?

Gas-actuated or expansion thermometers with capillaries are used in locations which are not easily accessible and where long distances have to be bridged. As a protective coating for capillaries, a flexible spiral protective sleeve or PVC coating is available.

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