WIKA

Temperature switches

For each application the right temperature switch

Temperature switches are used in a variety of industrial and technical processes. If a preset temperature is reached, then the temperature switch opens or closes a corresponding switch contact. Depending on the requirements, mechanical or electronic switches can be used. In addition to electronic temperature switches and bimetal temperature switches, WIKA's wide range also includes air velocity meters and frost protection thermostats.
FAQ
FAQ

What minimum insertion lengths are recommended, as a rough guide, for protection tubes in order to minimise the heat dissipation error?

for gaseous media: 15 ... 20 x protection tube diameter
for liquid media: 5 ... 10 x protection tube diameter
for solid media: 3 ... 5 x protection tube diameter
(these standard values are only valid for static mediaThe gap between the protection tube a ... more

What are 2-, 3- and 4-wire circuits?

They describe the number of wires with which the measuring resistor (e.g. a Pt100) is connected. While with the simplest 2-wire connection, the lead resistance can falsify the measuring result, this negative influence can be compensated within the 3- ...

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