Bimetallic thermometer strictly control the quality

The pointer to the bimetallic thermometer calibration accuracy decides the accuracy of their work, bimetallic thermometer manufacturers how to ensure that it is very important for the calibration accuracy. And we know of the bimetallic thermometer is mainly used in industry element is one with two or more pieces of metal laminate composed of multilayer metal together, using two different metal expansion degree during temperature change the principle of work, is based on the ring around the made of bent bimetallic strip, one end is heated expands, turns the pointer, should by the instrument will show thermoelectric potential value. So when the end fixed and the other end of the spiral coil and a free rotating pointer is linked together, as a result, when the bimetallic strip feel the temperature change, Pointers can be on a circular dividing scale to indicate the temperature. And this kind of instrument of temperature measurement range is - 80℃- + 500 ℃, the permissible error is about 1% of the scale range. Is for the installation of the bimetallic thermometer should be paid attention to for accurate temperature measurement, safety examination and maintenance is convenient, and does not affect the equipment operation and production operations, to meet the above requirements, we still need to ensure the accuracy of the bimetallic thermometer calibration of Pointers to grab from fountainhead, the supplier's production line requirements above.