supermarket refrigerated showcase » article > walk-in display coolers > WTQ-288 type supermarket refrigerated showcase electric contact pressure thermometer
WTQ-288 type supermarket refrigerated showcase electric contact pressure thermometer
author: supermarket refrigerated showcase category: walk-in display coolers Views: 511Time: 2016-08-22
WTQ-288 type supermarket refrigerated showcase electric contact pressure thermometer
The temperature of the acting liquid and gas, and when the working temperature reaches or exceeds a predetermined value, it will send out electric signals and alarm bells. It can also be used as a circuit contact switch in a supermarket refrigerated showcase temperature regulation system. The temperature bulb, capillary tube and spring tube form a closed temperature sensing system, and the system is filled with nitrogen at a certain pressure. The temperature bulb is inserted in the measured medium. When the temperature of the measured medium changes, the pressure of nitrogen in the bulb changes accordingly. This pressure is transmitted to the spring tube through the capillary tube and deforms it, with the help of a transmission connected to the free end of the spring tube The rod drives the gear transmission mechanism to deflect the rotating shaft equipped with the indicating needle to a certain angle, and indicate the temperature value of the measured medium on the scale.
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