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Product Code: 5686-B
Brand: Fluke Calibration
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Specifications:
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Temperature Range
–260 °C to 232 °C
Nominal RTPW
25.5 Ω
Resistance Ratio
W(302.9146 K) ≥ 1.11807 and W(234.3156 K) ≤ 0.844235
Sensitivity
< 0.005 °C per year over the entire range
Drift Rate
< 0.001 °C
The 5686 complies completely with ITS-90 and has the following resistance ratios:
W(302.9146 K) ≥ 1.11807
and
W(234.3156 K) ≤ 0.844235
The 5686 covers temperatures from –260 °C to 232 °C, so it’s perfect for cryogenic applications. It is 5.8 mm in diameter and 56 mm long. Fixed-point calibrations are available for the model 5686 from –200 °C to 232 °C.
These SPRTs are small but meet customary SPRT performance for reproducibility, reliability, and stability. They solve many of the problems associated with taking precision measurements in situations unsuitable for traditional-length SPRTs.
Technical Specifications
Temperature Range
–260 °C to 232 °C
Nominal RTPW
25.5 Ω
Resistance Ratio
W(302.9146 K) ≥ 1.11807 and W(234.3156 K) ≤ 0.844235
Sensitivity
< 0.005 °C per year over the entire range
Drift Rate
< 0.001 °C
Diameter of Sensor Pt Wire
5.8 mm dia. x 56 mm long
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Fluke 5686-B Glass Capsule Platinum Reference Thermocouple
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