• 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