• The Tinsley Group Limited

Platinum Resistance Thermometer

Tinsley is a global company specialising in precision measurement equipment, with a wide range of products ranging from transformer testers to submarine cable equipment. The company has an agent or agents in countries all over the world – whether in Macedonia or Mexico, Turkey or Taiwan, its agents are spread all over the world, to help users with their requirement. There have been many major developments at Tinsley throughout the last century – many of its products are historically significant. The company offers high precision Platinum Resistance Thermometer, Type 5187SA, with the following specifications: temperature range – -189°C to 660°C; calibration – suitable for calibration to ITS-90 up to max temperature 660.323°C (FP aluminium); resistance at 0°C (Rtp) – 25 Ohm ±0.5 Ohm; R(Ga)/R(tp) – ratio not less than 1.11807; R(Me)/R(tp) – ratio not greater than 0.844235; reproducibility – ±0.001°C; gas filling – dry air at 1/3 atmosphere; basic accuracy – ±0.001°C; dimensions – sheath diameter 6.5 mm to 7.5 mm, length 480 mm; head diameter – 23 mm, length 60 mm, overall length 540 mm, immersion depth 300 mm; self heating – 0.002°C to 0.003°C with 1 mA and the thermometer bulb immersed in unstirred water; leads – supplied with 4 metres of PTFE insulated cable fitted with gold plated copper spade tags; case size – 67 x 16 x 7 cm; and net weight including thermometer – 1.15 kg.