PECM Issue 32 2018 | Page 110

Bi-Metal Thermometer Temperature Gauges abfacility now offer Bi-Metal Stainless Steel Thermometers with bottom or back entry and 'any- angle' versions available to buy direct from our ecommerce website. L Any shift in temperature readings greater than twice the tolerance of the instrument must be investigated and the immediate replacement of the gauge if it is faulty. How does a bi-metal thermometer work? The bi-metal thermometer is made up of two metals moulded together to form a coil. Advantages of bi-metallic thermometers: As the temperature changes, the bi- metallic coil contracts or expands, causing the pointer to move up or down the scale. • Micro adjustable pointer • Class 1 with 316 S/S Stem • • 100mm Face size with various lengths and diameters available • • 1-year guarantee offered for working parts / default • • Adjustable installation fittings - comprehensive range of compression fittings available • Optional 1/2" BSP Thermopocket available • Temperature Ranges from -20°C to 200°C Standard stainless-steel gauges and pockets are suitable for air, oil, water and other non-erosive fluids. Environmental conditions should be taken into account when considering suitable materials for dial case, etc. The instrument head should be protected from localised heat or cold sources as this can lead to indicating errors. The function of the gauge does not require any special maintenance procedures but frequent checks must be made to ensure that the instrument is still working correctly and accurately. 110 PECM Issue 32 Bi-metallic thermometer are easily installed and maintained. Wide temperature ranges are available. The bi-metallic thermometer has class 1 accuracy. For all sales enquiries please contact us as follows: [email protected] Tel: +44 (0) 1243 871280 www.labfacility.com Specifications Accuracy Class 1 (1% F.S.D.) Dial Size 100mm Construction Flush fitting bayonet locking case and bezel Measuring Element Bi-Metallic coil Ranges °C -20 to +40°C, 0 to +100°C, 0 to +120°C, 0 to +200°C Over Limit Range 130% full scale Stem / Bulb 316 Stainless steel Case / Bezel ring Stainless steel AISI 316L Window Glass Dial Aluminium, black figures on white Pointer Aluminium, black Movement Direct drive on back entry Ambient Temperature -10...+50°C Temperature Effect max...0,3% / 10°C Protection EN 60 529 IP65