4–20 mA Sensor Loop
Map a process value to loop current and review the receiver load.
Input parameters
Results
Include transmitter and wiring voltage requirements.
Model & assumptions
I = 4 + 16(value − minimum)/(maximum − minimum) mA. Maximum receiver R = (Vsupply − Vtransmitter)/Iworst − Rwire.
No extrapolation outside the process range. Include all series burdens and use the transmitter maximum fault current when applicable.
Sources
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