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 Bulgaria EOOD

Tel.:
+359 2 8213810
Fax:
+359 2 8213813
info@wika.bg

FAQ

What is an inductive contact (model 831)?

Inductive limit switches in pointer gauges are fitted with non-contact electrical distance sensors (proximity sensors) in accordance with EN 50227. The output signal is determined by the presence or absence of a flag, moved by the actual value pointer within the ra ... More

Does the ambient temperature have any influence on the measuring tube within the case of the gas-actuated instrument?

Yes, that is why a bimetal compensation is installed between the movement and the measuring tube. This compensation is technically limited within a specific range. For WIKA gas-actuated instruments the standard ambient temperature is approx. 23 ± 10 °C. ... More

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