How to use the pressure type thermometer?

Pressure type thermometer by a temperature sensor, the pressure of capillary and bourdon tube pressure gauges. Pressure type thermometer is mainly used in refrigeration equipment, Marine machinery field, its working principle is based on the sealing temperature measurement system in evaporation of the liquid saturation change relationship between air pressure and temperature, and temperature measurement. When bulb feel temperature, saturated vapor produced the corresponding pressure in the closed system, cause the change of curvature elastic element, make its produce a shift in the free end, again by the displacement amplification mechanism of gear into the indicated value. Using temperature pressure type temperature timing must be wrapped all permeated the measured medium. Otherwise, will bring in value error. Spring and capillary environment temperature changes will affect the value for the thermometer, and therefore by filling in the spring tube and the capillary is heat medium, so the environment temperature and the degree is not at the same time, will cause a certain value for error, and this, inflatable biggest influence; Liquid type of times; The steam had no effect. Instrument of the surrounding environment temperature shall not exceed 50 c, pay attention to protect capillary, shall not be violently bent many times, shock or damage to the sealing, and avoid the corrosion influence of capillary and spring.