This module is loop powered and will generate 3.8 mA to 20.5 mA covering the range of 4 to 20 mA.

The input polarity can be anything.

This is useful for field testing of 4 - 20 mA receivers / instruments.
+ 12V to 24V IN
4 to 20 mA OUT
into 250 or 600 ohms load
POTENTIOMETER input
4 - 20 mA generator
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