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Catalog:Techne - Accessories and Related Equipment 
Techne - PRT`s 660° C Working Standard PRT Features Techne PRT's Our PRT's offers proven and reliable performance for your critical temperature measurements. They can be used with our Tecal Accu-Temp indicator or any comparable model. Both models include an ITS-90 calibration (NIST traceable) certificate with coefficients and resistance vs. temperature table. The WSP660 gives an SPRT level of performance and specifications at an affordable price, while the 300 deg.C model is an Industrial RTD designed for lower accuracy measurements. 660° C Working Standard PRT Model WSP660 PRTs are assembled using our special wire wound RTD elements, assembled into inconel sheaths. The WSP660 PRT has similar accuracy and long-term stability specifications you would find in much higher priced Primary standard PRTs. The WSP660 PRT can be used as a reference standard in calibration baths, furnaces, fluidized baths, dry block calibrators and other any other temperature calibration work requiring a high level of accuracy and repeatability. Combine with Specifications Specifications Resistance at 0° C: 100 ohms Temperature range: -200 to 660°C Temperature coefficient: 0.003925 O /O /° C minimum Stability: R0 typical drift < 0.03°C after 500 hours at 660° C Thermal shock: R0 typical drift < 0.010° C after 100 times from 25 to 660°C Dimensions: 0.25" dia. x 15" L inconel sheath as standard, custom sizes available Tolerance at 0° C: ± 0.06%, IEC DIN class A Lead Wires: 4 wire Teflon insulated, stranded 22 AGW copper x 6' L Calibration Each WSP660 includes an ITS-90 NIST traceable calibration with a+, b+, c+, a- and b- coefficients and R vs T table. Calibration uncertainty (K=2) -50°C ±0.052°C -20°C ±0.050°C 0°C ±0.036°C 200°C ±0.042°C 420°C ±0.044°C 660°C ±0.052°C Accessories Please Call 1800 783 6664 Model Catalog number: 7002660 List Price: $695 Please select from the drop down menu below
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