How does spring thermometer fixed?

Spring is one of the surface thermometer thermometer. Commonly used on the pipeline, chemical industry equipment, used to measure the surface temperature, special thermometer is pipes. How the spring thermometer fixed? Instrument to answer: spring on the spring fixed thermometer, should pay attention to when using the length of the spring and the diameter to be fixed. In addition, when using, pay attention to clean up and check, regularly test the measured values. In order to make people more familiar with spring thermometer, today to introduce a thermometer ST221SS spring. For: ST221SS types: description: pipeline thermometer, surface thermometer structure: axial type, spring type fixed ring on the cover: pressure BianShi material: stainless steel shell, the copper connection tooth head: no teeth, behind a word adjustable surface diameter: 63 mm temperature range: 0 - 120C( Can be customized) Accuracy: & plusmn; Table: 3% glass protection grade: IP55 ( Dust, water) A line can be fixed within 50 mm spring principle is to rely on bimetallic thermometer sensors principle of heat bilges cold shrink, measured by contact thermometer at the bottom of the spring to the metal surface and reading. This type of double metal surface thermometer can range from - 40 c to 500 c, the accuracy can be 3%. For some of the requirements for accuracy is not high occasions, the use of the thermometer is a cheap and fine.