What is the distinguishing feature of the pressure type thermometer?

Pressure type thermometer is also called the isolation measure thermometer thermometer or remote reading. 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. Pressure type thermometer mainly by thermal bubble, capillary tube, the coil spring tube ( Or more lap spiral pipe) A closed system composed of three parts. Is widely used in machinery, textile, chemical, pharmaceutical, food industry for the temperature measurement and control in the process of production. The characteristics of pressure type thermometer mainly has: ( 1) At present, the production of pressure type thermometer measurement range of - is the most 100 - 600℃; ( 2) Pressure type thermometer can be in situ measurement, and according to the length of the capillary, within the scope of the heat pack can achieve remote measurement ( Maximum range is generally not more than 60 m) ; ( 3) Scale pressure type thermometer structure is simple, cheap, clear; ( 4) In addition to the electricity connecting point, other forms of pressure type thermometer with no power supply, open channel flow meter, water meter in use does not produce sparks, reason has explosion-proof performance, suitable for easy tender I explosive environment temperature measurement; ( 5) Pressure type thermometer value was passed by the capillary, so its time lag is bigger; ( 6) Due to the pressure type thermometer by measuring installation height, environment, thermal bags in leaching of the measured medium depth and precision of pressure gauge, the influence of its measurement precision is not high. ( 7) Capillary pressure type thermometer low mechanical strength, easy to damage, and generally difficult to repair after damage.