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08-19-2016 12:49 PM - edited 08-19-2016 12:50 PM
I have a WIKA O-10 (T) pressure sensor. This sensor gives a output signal of 4 to 20 mA.
specs are given in the link; http://www.wika.co.in/upload/DS_PE8165_GB_36812.pdf
I need to connect it to the NI 9219 module. 9219 supports current measurement and pressure sensor gives a current signal. So it should be compatible with each other.
However, how would I convert this current signal to pressure, that is the problem??
08-26-2016 04:34 AM
read the current signal (4 to 20 mA)
use scaling to convert the mA to Pressure
rate =(output max pressure-Output min pressure)/(input max mA -Input Min mA)
Pressure value = rate*mA (read)+Output min pressure-rate*(Input Min mA)
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