Teach you bimetallic thermometer how to install and use maintenance

Should be paid attention to for the installation of the bimetallic thermometer, temperature measurement accuracy, safety examination and maintenance is convenient, and does not affect the equipment operation and production operations, to meet the above requirements, in the choice of thermal resistance of the installation site and insertion depth to pay attention to the following points: ( 1) In order to make the measurement of thermal resistance end and have good heat exchange between the measured medium, should be a reasonable choice of observation, try to avoid the valve, elbow and pipe and equipment near the corner of installing heat resistance. The bimetallic thermometer ( 2) With a protective casing thermal resistance of heat transfer and heat loss, in order to reduce the measurement error, thermocouple and thermal resistance should have enough insert depth: a, for heat resistance temperature center fluid, usually should be measuring end is inserted into the pipe center ( Vertical or inclined installation) 。 As the current body of pipe diameter is 200 mm, the thermal resistance should choose insert depth 100 mm; B, for high temperature and high pressure and high velocity of temperature measurement, Such as main steam temperature) , in order to reduce cases of fluid resistance and prevent cases break under the action of a fluid, can take protecting tube shallow inserted way or use hot shell heat resistance. Shallow inserted type thermal resistance to protect casing, and its depth into the steam pipe should be no less than 75 mm; On a hot resistance standard insert depth of 100 mm; C, if is need to measure the temperature of flue gas, although the flue is 4 m in diameter, the heat resistance of insertion depth of 1 m; D, when measuring the original insertion depth of more than 1 m, shall be installed vertically, as far as possible or add racks and protect casing. Use and maintenance of the 1, WSS series bimetallic thermometer in custody, installation, use and transportation process, should try to avoid collision protection tube, do not make. To protect the tube bending and deformation. When installation, it is forbidden to twist the instrument shell. 2, instrument should be in - 30 ℃ ~ 80 ℃ environment temperature in normal work. 3, temperature instrument often work better in the scale range of 1/2 to 3/4 place. 4, bimetallic thermometer temperature range: - 80～+40℃- 40 ~ + 80 ℃ 0 0 ~ 50 ℃ ~ 100 ℃ 0 ~ 120 0 0 0 ℃ ~ 150 ℃ ~ 160 ℃ ~ 200 ℃ 0 ~ 250 0 0 0 ℃ ~ 300 ℃ ~ 350 ℃ ~ 400 ℃ 0 ~ 450 0 0 0 ℃ ~ 500 ℃ ~ 550 ℃ ~ 600 ℃ of the bimetallic thermometer measurement range ℃ temperature measurement range, small - to adapt to the range of industrial, commercial laboratory 80 - +40√√　　- 40 - +80√√　　0- 50√√　　0- 100√√　　0- 150√√　　0- 200√√　　0- 300√√　　0- 400√√　　0- 500√√