In this article, we discuss about How to Convert Current to Voltage using Resistor with different examples like 0-20 mA to 0-10 VDC Conversion, 4-20 mA to 2-10 VDC Conversion, 0-20 mA to 0-5 VDC Conversion.
It is extremely simple to measure 0-20 mA signal with a device that will measure only Voltage inputs. If the Voltage input module available will accept a 0-10 Vdc signal, but may not accept a 0-20ma signal directly.
Basically, Ohms law is used to calculate a resistor value in order to convert the 0-20ma signal to a voltage.
Ohms law states: R = V/I where V is the Voltage, I is the current and R is the resistance
R = 10V/0.020A = 500 Ohms
V = I*R = 0.020*500 = 10V
Ohms law states: R = V/I where V is the Voltage, I is the current and R is the resistance
R = 10V/0.020A = 500 Ohms
V = I*R = 0.020*500 = 10V
Ohms law states: R = V/I where V is the Voltage, I is the current and R is the resistance
R = 5V/0.020A = 250 Ohms
V = I*R = 0*250 = 0V
V = I*R = 0.020*250 = 5V
Note:-
Credits : myplctechnology blog
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