8508A-SPRT

Standard Platinum Resistance Thermometer

  • Measure temperatures as high as 661 ºC
  • Inconel™ and platinum sheaths guard against contamination
  • Less than 10 mK/year drift
  • Fifth wire provides shield ground

The 8508A-SPRT Extended Range Metal-Sheath SPRT has been designed and manufactured by Fluke Calibration's primary standards metrologists, to complement the Fluke 8508A Reference Multimeter’s precision PRT temperature function.

Temperature range -200 ºC to 661 ºC
Nominal RTFW 25.5 Ω (+ 0.5 Ω)
Calibration uncertainty 2.1 mK @ 660 ºC
Sensitivity 0.1 Ω/ºC
Drift rate < 10 mK per year max. 2-3 mK per year typical
Stability + 0.003 ºC
Protective sheath Iconel™ 600 0.219” dia X 19” L (5.56 mm x 482 mm)

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