How much do you know the pressure type thermometer?

We all know that there are many pressure type thermometer applied to lead the way, is widely used in machinery and equipment, textile, chemical, pharmaceutical, food industries, mainly for the temperature measurement and control in the process of production. A lot of people think the pressure type thermometer is measuring pressure, is not really well, it is to measure the temperature, today to explain the specific pressure type thermometer. Pressure type thermometer thermometer is also called the isolation test or remote reading thermometer, by using the filling medium expansion principle of the instrument, push the instrument turns the pointer of elastic component, and then measure the temperature of the environment to be tested. So the range of widely used, and what are the advantages and disadvantages of pressure type thermometer? Pressure type thermometer is: the advantages of simple structure, high mechanical strength, is not afraid of vibration. The price is low, does not need external energy. Pressure type thermometer faults is: limited temperature range, generally in - 80~400℃; Heat loss due to slower response time; Instrument sealing system ( Bulb, capillary, spring tube) Damage is difficult to repair, must be replaced. Measuring accuracy are greatly influenced by environmental temperature, temperature package installation location, accuracy is relatively low; Capillary transmission distance limit. Know the advantages and disadvantages of the pressure type thermometer, therefore, should be paid attention to when we use the following several aspects: ( 1) When measured, should be the heat pack all immersed in measured medium. But should pay attention to, can't insert capillary is medium, otherwise it will increase the error of measurement. ( 2) Because of the lag time of pressure type thermometer, temperature measurement, temperature should be relatively stable value after reading. ( 3) Due to the capillary pressure type thermometer mechanical strength is poorer, the installation and use of the pressure type temperature time, must pay attention to protect the capillary, shall not be severe bending impact for many times, at the same time, also should pay attention to don't put the capillary tube and spring are susceptible to corrosion environment. There are more than the introduction, with pressure type thermometer? Hope to help you in use!