DMS-20LCD-420

www.murata-ps.com DMS-20LCD-4/20 Series 4-20mA Input Loop-Powered Ultra-Low 1.8V Loop Drop 3½ Digit LCD Display Process Monitors FEATURES ■ Super-low loop drop: 1.8V typical, 2.0V max. ■ Self-powered, no separate supply required ■ Unipolar, Bipolar, and Positive Reading Models ■ Subminiature package—Less than 0.90” behind-the- panel depth ■ Large, 0.37"/9.4mm high, sunlight-viewable LCD display ■ Non-interacting gain (span) and offset (zero) 20-turn potentiometers ■ DIP-switch selectable range and decimal points ■ Hundreds of different input/readout combinations ■ Vibration-resistant package; reliable screw-terminal input connections SIMPLIFIED SCHEMATIC DIAGRAM The DMS-20LCD-4/20 Series produces the lowest loop voltage-drop of any comparably priced, 4-20mA input, 3½ 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 All decimal-point and range-change selections are made via a six-position DIP switch featuring vibration-resistant, gold-plated contacts—there are no jumpers or solder gaps to ever open or close. Both gain (span) and offset (zero) adjustments are performed with precision, 20-turn potentiometers. Three different models are available for unipolar, bipolar, and positive dis...