The parameters of the pressure type thermometer - Shanghai dragon instrument electric appliance co. , LTD

The principle of pressure type thermometer is based on the sealing temperature measuring system of liquid evaporation changes in the relationship between saturated vapor pressure and temperature, the temperature measurement. Bag when I feel the temperature change when 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, the thermometer with a bulb small volume, fast response, high sensitivity and direct reading characteristics, almost set the glass rod thermometer, bimetallic thermometer, all the advantages of the gas pressure thermometer, it can be made into shock, anti-corrosion type, and can realize remote contact signals, heat resistance, 0 10 ma, or 4 20 ma signal. Is currently the most widely use scope, performance is one of the most comprehensive mechanical thermometer table. Pressure type thermometer the parameters of the low level of explosion-proof: d Ⅱ BT4, d Ⅱ CT5, d Ⅱ BT6, d Ⅱ CT6 low environmental temperature: - 20 ~ 45 ° C low relative humidity: less than 90% low altitude: less than 2000 m precision low thermal resistance, B level low time constant: 34 s