How to choose a trust of bimetallic thermometer

With the application of the bimetallic thermometer more and more, has been favored by all walks of life, choose a good bimetallic thermometer, which reduce the failure rate, and can prolong the service life. Next to introduce how to choose a qualified bimetallic thermometer. The visible part of the bimetallic thermometer to no obvious blemishes and scratches or damage. For printing quality, scale of table board, trademark printing content must be complete, clear and color. Pointer must not have paint tumor, burr; Joint thread must not have crack, collapse, ground bald and sliding tooth phenomenon; Table should maintain a transparent light, no oil, scratches. Fill in the table filling liquid and transparent, no impurities or debris. Measuring range accuracy to conform to the requirements of the level of the equipment used. Bimetallic thermometer temperature sensing element is two pieces of expansion system made of different metal stitch welding together. Bimetallic strip after heat due to the expansion of the two sheet metal bending length is not the same. The length and width of the linear expansion of the higher the temperature the greater the difference, thus draws the greater the bending Angle, the bimetallic strip are made into spiral tube, this is the working principle of bimetallic thermometer. The last reminder, in addition to the choose and buy, for use in the production of bimetal thermometer, we suggest that in the process of using regular maintenance and maintenance.