WIKA South Africa

Resistance thermometers with Pt100/Pt1000 resistor

Resistance thermometers are equipped with platinum sensor elements which change their electrical resistance as a function of temperature. In our range of products you will find versions with connected cables as well as versions with connection heads. A temperature transmitter can be installed directly in the connection head. Furthermore, in the WIKA product portfolio, in addition to threaded resistance thermometers, flanged resistance thermometers or process resistance thermometers, you will also find the right measuring insert for your application.

FAQ
FAQ

How large is the measuring error caused by the internal lead resistance with a Pt100 built into an MI cable with Cu internal wires in a 2-wire connection?

D = 3 mm : 0.28 Ohm/m = 0.7 K/m (measuring error)
D = 6 mm : 0.1 Ohm/m = 0.25 K/m (measuring error)
(D = external diameter of the MI cable)