8508A-SPRT | Standard Platinum Resistance Thermometer

Model#:8508A-SPRTPart#:1886182
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  • 5699 High-Temperature Metal-Sheath SPRT

Product overview: 8508A-SPRT | Standard Platinum Resistance Thermometer

  • Range to aluminum point (660 °C )
  • Inconel™ and platinum sheaths guard against contamination
  • Less than 8 mK/year drift
  • Many calibration options available including by fixed point
  • 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.

Specifications: 8508A-SPRT | Standard Platinum Resistance Thermometer

Specifications
Temperature Range–200 °C to 670 °C
Nominal RTPW25.5Ω (± 0.5Ω)
Current1 mA
Resistance RatioW(302.9146 K) ≥ 1.11807
W(234.3156 K) ≤ 0.844235
Sensitivity0.1 Ω/ °C
Drift Rate< 0.008 °C/year
(< 0.003 °C/year typical)
Repeatability< 1 mK
Self-heating at TPW< 0.001 °C under 1 mA current
Reproducibility± 0.001 °C or better
RTPW Drift After Thermal Cycling< 0.001 °C
Diameter of Pt Sensor Wire0.07 mm
(0.003 in)
Lead WiresFour sensor wires plus grounding wire
Protective SheathInconel
Diameter:5.56 mm ± 0.13 mm (0.219 in ± 0.005 in)
Length:482 mm (19 in)
Insulation Resistance> 100 MΩ at 661 °C
> 1000 MΩ at 20 °C


Calibration 

 


Accredited calibrations from Fluke Calibration included

Models: 8508A-SPRT | Standard Platinum Resistance Thermometer

8508A-SPRT
Standard Platinum Resistance Thermometer
Part#: 1886182
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