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.

Sales contact

WIKA Instruments Ltd.

Tel.:
+44 1737 644008
Fax:
+44 1737 644403
info@wika.co.uk

FAQ

Why can one not use a magnetic snap-action contact with bimetal measuring systems?

Since bimetal measuring systems only offer very low actuating forces.

Why is liquid damping an advantage with negative ambient temperatures?

Since with unfilled instruments, there can be a possible build-up of condensing water, the window can become steamed up. This is not possible in filled instruments.

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