Standard bimetallic thermometer principle and characteristics

Industrial production, in many cases, have clear requirements for temperature, in under the condition of low temperature, many line is equipped with standard bimetallic thermometer, to real time measuring the temperature of the pipe, to ensure normal production. So, what is the standard bimetallic thermometer? The following instruments to explain this to you. Standard bimetallic thermometer concept: the expansion of the bimetallic thermometer is the use of two different consisting of two metals bimetallic element, used for temperature measurement instrument. Bimetallic thermometer works: standard bimetallic thermometer is with different expansion coefficient of two kinds of metal or alloy plate temperature sensing element of firmly together, generally made spiral wound, usually at one end fixed and the other end with a pointer. When the temperature changes, the temperature sensing element change of curvature, free end rotation, drive the pointer on the dial indicator temperature values. The classification standard of bimetallic thermometer:? Axial type: refers to the axis of the heat pipe with dial perpendicular to the plane. Radial type: refers to the axis of the heat pipe with dial parallel plane. Universal type: refers to the axis of the heat pipe with dial plane can be adjusted at any Angle. Note: when standard bimetallic thermometer used? The immersed depth of the heat: heat pipe length is less than 300 mm, immersion depth should not be less than 70 mm. Heat pipe length is greater than 300 mm, immersion depth should not be less than 100 mm. When installation should avoid collision heat tube, don't make the heat tube bending deformation occurs. The temperature of the instrument often work best in 1/2 - scale range - Three quarters. Features: standard bimetallic thermometer? No mercury pollution, easy to use, long service life. Wide application range, measurement range is - 80 ℃ to 600 ℃. Bimetallic thermometer is through the introduction of standard has a deeper understanding, Shanghai instrument and meter plant production of thermometer, with temperature sensing touched the world changes in temperature.