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 Philippines Inc.

Tel.:
+63 2 234-1270
Fax:
+63 2 654-9662
sales.ph@wika.com

FAQ

What is a change-over contact?

When the set point is exceeded, simultaneously one circuit is opened (NC) and one circuit is closed (NO). Changeover contacts are denoted by the number 3 (SPDT).

What is a sliding contact (model 811)?

The sliding contact is a mechanical physical contact for switching loads of up to 10W 18VA.

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