Bimetal Thermometer

Bimetal Thermometer 1. Bimetal Thermometer is a measuring gauge which used bimetal piece as sensor part to measure low or medium temperature. Compare to the glass thermometer, it has advantages as non-Hg, clear in reading, durable. Widely used in machinery, chemical industry, textile, medicine, foodstuffs, vessel and so on for measuring and controlling the temperature. Bimetal thermometer is middle low temperature field measurement instrument which can directly measure the temperature of steam and gas in the various production processes within range of -80 °C and+600 °C. The major component of bimetal thermometers for industrial use is a multi-layer metal which is made of two or more metal layers together on the principle that swelling degrees of two different metals at different levels of temperature are different. It is composed of two sheet metals that are coiled up into a ring bent shape. The swelling of heating end of metal can drive the pointer rotates, as a result, the temperature value of thermoelectric power will be displayed on the meter. 2. Temperature measuring range: -80 °C - +600 °C Protection tube material: 1Cr18Ni9Ti Protection tube Diameter: Φ100 Mounting & Fixing: Movable external thread. Accuracy: 1.5 (JB/T8803-1998) Time constant: J <40S Protection tube pressure: 6.3MPa Contact Rating: Rated Power 10VA (no sense); maximum voltage: AC 220V, the maximum operating current: 1A (no sense), For the upper and lower contacts and normally open Header Working temperature: -25 55 degrees Celsius 3. Model Naming Method 4. Model Selection Table Model Measuring range °C Accuracy protection pipe material specification Installing Fixtures D L WSS-480 -80-+40 0-80 0-100 0-150 0-200 0-400 0-500 0-600 1.5 1Cr18Ni9Ti 304 316 316L Hastelloy C-276 Φ100 75 100 150 200 300 400 500 750 1000 None WSS-580 Φ150 WSS-481 Φ100 Movable external thread WSS-581 Φ150 WSS-482 Φ100 Movable internal thread WSS-582 Φ150 WSS-483 Φ100 Fixed thread WSS-583 Φ150 WSS-484 Φ100 Fixed flange WSS-584 Φ150 WSS-485 Φ100 Bite type thread WSS-585 Φ150 WSS-486 Φ100 Bite type flange WSS-586 Φ150