Pins
- Two-pin to target-read
- Three-pin board power supply, middle pin output voltage-read
Use Guide
two pin load wiring
Single Power Supply
- All input power from three-pin terminal VCC GND pins
- yellow pin for output voltage read
- module power supply 7-30V, 2V higher than output-side
seperated Power Supply
- Further add power supply on two-pin measure-target side
three pin load wiring
Tuning Steps
- Set input current to 4mA, tune 10K trim-pot, until output voltage to 0V
- Set input current to 20mA, tune 100K trim-pot, until output voltage to 5V
- Done
A simulation trim-pot can be used as a target load on left side
Tests
ref
- https://t.me/electrodragon3/237
- https://t.me/electrodragon3/178
- https://www.electrodragon.com/product/current-loop-to-analog-voltage-converter-4-20ma-to-0-5v/