Tinsley 5187SA - 5SA High Precision Platinum Resistance Thermometer

Tinsley 5187SA: This four terminal Precision Platinum Resistance Thermometer is designed to realise, with the highest accuracy, the International Temperature Scale ITS-90 over the range -189°C to 66O°C. The design is the result of many years practical experience and cooperation with the National Physical Laboratory, Teddington, where primary resistance and other standards are maintained. 

• Temperature Range: -189°C to 660°C.
• Resistance at 0°C (Rtp): 25 Ohms +/- 0.5Ohm.
• Reproducibility: +/-0.001°C.
• Basic Accuracy: +/-0.001°C.
• Self heating: 0.002°C to 0.003°C with 1mA and the thermometer bulb immersed in unstirred water.
• Case Size: 67 x 16 x 7 cm.
• Calibration: Suitable for calibration to ITS-90 up to max temp 660.323°C (F.P.Aluminium).
• R(Ga)/R(tp): Ratio not less than 1.11807.
• R(Me)/R(tp): Ratio not greater than 0.844235.
• Gas Filling: Dry air at 1/3 atmosphere.
• Dimensions: Sheath - diameter 6.5 to 7.5 length 480 mm / Head - diameter 23 mm length 60 mm Overall length: 540 mm / Immersion depth: 300mm.
• Leads: Supplied with 4 metres of PTFE insulated cable fitted with gold plated copper spade tags.
• Nett Weight: Including thermometer 1.15kg.

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