Views: 0 Author: Site Editor Publish Time: 2021-10-10 Origin: Site
The flow switch is mainly installed in water, oil and other liquids or plug-in medium pipes to monitor the water flow in the water supply system. At this time, when the water flow is higher or lower than a set point in time, the device will send the output alarm signal to the device, and the system will make the corresponding indication action after obtaining the signal, so as to avoid or reduce the "dry burning" of the host. Its unique streamlined structure design, accurate and stable performance, is widely used in pipeline flow monitoring and large, medium and small equipment cooling and lubrication system.
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Working principle of the water flow switch
Application of Water flow switch in Air conditioning system
The water flow switch is designed based on the principle of temperature change of the detection head. A heating sensor and a sensible heat sensor are installed in the probe and are in contact with the medium. When measuring, the heating sensor emits constant heat. When there is no medium flow in the pipe, the heat received by the sensible heat sensor is a constant value. When there is medium flow, the heat received by the sensible heat sensor will change with the flow rate of the medium. The sensible heat sensor converts the temperature difference signal into an electrical signal, and then converts it into the corresponding contact signal or analog signal through the circuit.
(1) the ambient temperature is not lower than 0 ℃. Do not hit the shell. Stay away from magnetic objects.
(2) the output of the signal is the switch value, so the connection mode of the control object must also be the switch control relationship.
(3) the power of the control object shall not be greater than the signal load capacity.
(4) this device is a water medium control device and can not be used for other media control. Various specifications and sizes.
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