Pressure type thermometer use and the matters needing attention during installation

Pressure type thermometer by a temperature sensor, the pressure of capillary and bourdon tube pressure gauges. 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. Pressure type thermometer works: the principle of thermometer is based on the sealing temperature measurement system and saturated vapor pressure of liquid evaporation in the change of the relationship between temperature, and temperature measurement. Pressure type thermometer mainly used in refrigeration equipment, Marine machinery. Today with everyone to know about the pressure type thermometer use and matters needing attention of installation. 1. Using pressure type thermometer inserted depth of the thermometer, is must be all bulb into the measured medium. Otherwise, will bring in value error. 2. Using temperature time, 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 the surrounding environment temperature shall not exceed 50 c. 3. Installation must pay attention to protect when using capillary, and may not be violently bent many times, shock or damage to the sealing, but also avoid the corrosion influence of capillary and spring.