Bearing Surface RTD and Thermocouple Temperature Probes

Description

Bearing surface temperature measurement

The WZPT-23ZC bearing RTD uses a sealing ring, spring and outer protective tube. A fixed bolt secures it to the equipment base, while the spring lets the measuring tip follow movement of the bearing surface. Compression mounting allows adjustment of the measuring depth. Related WZPT-31 RTDs and WRNT-31 or WRET-31 thermocouples provide additional bearing-temperature selections.

Elements, ranges and response

ModelElementsSensorTemperature rangeAccuracy classResponse time t0.5Protective tube material
WZPT-23ZCSinglePt1000-200°CB≤20s06Cr18Ni11Ti
WZPT2-23ZCDual
WZPT-31Single
WZPT2-31Dual
WRNT-31SingleKI or II≤4s
WRNT2-31Dual
WRET-31SingleE
WRET2-31Dual

Dimensions and connections

ModelsInsertion section diameterTotal lengthProcess connectionHeadElectrical entry and cable diameter
WZPT-23ZC and WZPT2-23ZCCustomized
WZPT-31, WRNT-31 and WRET-316mm100mm, 150mm, 200mm, 250mm, 300mm, 350mm, 400mm or 450mmM27x2; optional M24x1.5, M20x1.5, M18x1.5, G3/4, G1/2, NPT1/2 or NPT3/4Water-resistant headM20x1.5; 10mm cable
WZPT2-31, WRNT2-31 and WRET2-31M24x1.5; 16mm cable

Other specifications are available for the application. The customized dimensions of the 23ZC construction are separate from the standard 31-model dimensions.