Common bimetallic thermometer when using the matters needing attention have?

In the selection of common bimetallic temperature time to fully consider the actual application environment and requirements, such as the dial diameter, protection grade precision, fixed installation methods, types and measured medium environment risk, etc. In addition, also attaches great importance to the performance and easy maintenance and so on factors, bimetallic thermometer in use process should pay attention to the following five points: 1, the bimetallic thermometer protecting tube immersed in the measured medium length must be greater than the length of the thermal components, generally greater than 100 mm in length, 0 50 c range in length is more than 150 m, so as to ensure the accuracy of measurement. 2, all kinds of bimetallic thermometer should not be used to measure open containers within the medium temperature, electric contact thermometer should not be larger vibration at work used in the control circuit of occasions; 3, bimetallic thermometer in custody, use the installation and transportation, should avoid collision protection tube, do not make the protection tube bending variant and the table when the spanner is used; 4, thermometer in the case of normal use shall be regular inspection. A in every six months, the longest do not exceed one year. Electric contact thermometer is not allowed to work under strong shock, so as not to affect the reliability of the contact; 5, the temperature of the instrument often work better in the scale range of 1/3 to 2/3.