Turbine flowmeter output signal is 4~20mA, how to calculate the current flow through the output current value, for example, detected current value of 5.4mA
This requires setting, for example, your range is 0 to 100 sides per hour, then the scale is evenly distributed, then 4MA corresponds to 0, 20 corresponds to 1005, and 4 corresponds to one. This can be set from the circuit board of the table.
Say a little more bluntly, the converter part of the circuit board can adjust parameters, very simple, there will be instructions that they will be the same as the electronic watch. 4- corresponds to the minimum range 20 corresponding to the maximum range,
You only need to know what the upper limit flow is, so you can know the current flow.Generally, the maximum flow rate can be seen on the nameplate of the flowmeter, or the intelligent flowmeter can manually set the upper limit flow corresponding to 20mA.
4-20mA means 4mA=0 traffic20mA= upper limit flowThe difference between zero and full is 20-4 = 16mAYou now detect that the current is 5.6mA, and that the difference between him and the zero is 5.6-4 = 1.6mACurrent flow = upper limit flow * (1.6/16)That is to say, the current traffic is 10 of the upper limit
