Loop powered display.

The DMS-20LCD-4/20 Series produces the lowest loop voltage-drop of any comparably 4-20mA input, 3 1⁄2 digit LCD-display process monitors: 1.8V typical, 2.0V max. This super-low drop means its nominal loop resistance (burden) is less than 100 Ohms! All operating power is derived solely from the 4-20mA loop current no separate power source is required! The simple 2-wire hookup allows the DMS-20LCD-4/20 Series to be connected anywhere in the loop