WIKA

Dial thermometers

Dial thermometers with scale ranges from -200 to +700 °C

Our dial thermometers work on the bimetal, expansion or gas actuation principle. This enables scale ranges of -200 to +700 °C in different class accuracies, response times and resilience to environmental influences. Diverse connection designs, stem diameters and individual stem lengths enable a flexible measuring location design. Dial thermometers with remote capillaries are particularly versatile. All thermometers are suited for operation in a thermowell if necessary.
FAQ
FAQ

Why is liquid damping in bimetal thermometers only possible up to medium temperatures of 250°C?

Since the filling liquid (silicone oil) in the complete thermometer (i.e. it is also present in the stem) this means the filling liquid is heated to the temperature of the medium.  This can lead to fire in the silicone oil.