HIGHJOIN Oil Air water flow monitor PNP NPN 4-20ma switch output thermal Flow Switch

Product FeaturesAll-metal shell design, no moving parts, maintenance-free and easy to install. One model is suitable for various pipe diameter requirements. Suitable for flow monitoring of different media, including some impure ones. Liquid and gaseous media Compact structure. digital display for the media flow statu; buttons for parameter setting, easy to operate.Application: industrial electric furnaces, welding equipment, laser equipment, microwave equipment, glass machinery, lubrication machinery, printing machinery, machine tools, and large transformers.   OverviewHFM510 digital display flow switch adopts the principle of thermal diffusion and is used in flow detection. The value of the regional temperature difference indicates the flow rate. Its working principle is to place a heating module and a temperature sensing module in a closed probe. The heat transfer temperature difference of the probe is closely related to the flow rate of the medium to be measured. When the medium in the pipe flows at a stable flow rate, the sensing module receives the sensing signal from the heating module is a fixed value. When the flow rate flowing through the probe changes, the thermal module will send out a temperature difference signal that changes accordingly, and the processor will output the result corresponding to the flow rate.Technical ParametersMeasuring RangeWater1...150cm/s (Most sensitive range 1...60cm/s)Oil3...300cm/s(Most sensitive range 3...100cm/s)Air20...2000cm/s(Most sensitive range 20...700cm/s)Measuring MediumWater, Oil, AirWithstand Voltage100barInitialization Time18sResponse Time1...15s, related to thermal conductivity of medium, typical value 2sSupply Voltage24VDC(18~32VDC)No-load current