Thermal flow controller principle contains two resistors in a closed probe, one of which is heated as the probe resistance, and the other is called the reference resistor is not heated, traffic, street of flow, heat the heating medium is taken away , the gas flow sensor, the resistance value is changed, the difference between the two resistors are used as the basis for determination flow rates. Withstanding pressure: 0 ~ 100bar (high voltage to be customized); medium temperature: -20 ℃ ~ 80 ℃ (medium temperature ≤4 ℃ / s) Ambient temperature: -20 ℃ ~ 70 ℃; Relative humidity: 5 to 85% 1 Please horizontal installation, flow direction Follow the instructions when using two instruments, in order to avoid impurities caused by water flow switch malfunction, we recommend the use of filters installed in the inlet end 3, using the maximum temperature does not exceed 95 ℃, in order to avoid causing the magnetic core out of the flow sensor, flow, made by TU Technology Co., Ltd. Beijing tour. Beijing Tour En Technology Co., Ltd. (www.bjyouen.com) (www.bjyouen.com) strong, credible, in Beijing's Haidian District, chemical instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead tours into the brilliant grace and you work for a better future!