Jumo Mineral-Insulated RTD Temperature Probes Type 902210
Due to their specific features, mineral-insulated RTD temperature probes are used in chemical plants, power plants, pipelines, engine building, test rigs, and any measuring locations requiring flexibility and simple replacement. Inside the flexible and thin-walled stainless steel sheath cable, the low ohmic conductor copper wires are embedded in compressed, heat-resistant magnesium oxide.
The temperature sensor with 2-wire, 3-wire, or 4-wire technology is connected to the conductor copper wires and installed in the stainless steel protection tube. The protection tube and sheath cable are welded to one another. They are available in diameters as low as 1.9 mm.
The good thermal transfer between the protection tube and temperature sensor enables short response times (t0.5 from 0.7 s) and excellent measuring accuracy. The vibration-resistant construction guarantees a long operating life. The flexible probe tube allows temperatures to be
measured at difficult-to-access points. The smallest bending radius is 5 times the outer diameter. From an insertion length of approximately 1000 mm, the mineral-insulated RTD temperature probes are delivered in a rolled up state.
The measuring insert is normally fitted with a Pt100 temperature sensor according to DIN EN 60751, class B in 2-wire circuit; versions with Pt500 or Pt1000 can be ordered as well. The connection is also available in 3-wire and 4-wire circuits and in tolerance classes A and AA.