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Thermometers with switch contacts

Display and monitor limit values

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
FAQ

What is a switching function, and what do NC and NO stand for?

Switching functions are the opening and closing of an electrical circuit. There are two types of contacts in switching: normally closed (NC, denoted by a 2) contacts interrupt a circuit on rising pressure (clockwise), while normally open (NO, denot ...

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