DMS-20PC-4/20 Series: Loop-Powered 3½ Digit LED Process Monitors.pdf

## Murata DMS-20PC-4/20 Series Loop-Powered LED Process Monitors Summary

The DMS-20PC-4/20 series offers subminiature, loop-powered digital process monitors with a bright red, 3½ digit LED display. Key features include:

Key Advantages:

Loop Powering: No external power supply required, powered directly from the current loop itself.
Versatility: Hundreds of input/readout combinations possible through DIP switch and potentiometer adjustments.
High Quality Display: Large, easy-to-read 0.37" (9.4mm) digits with uniform intensity across the entire 4-20mA range.
Robust Design: Vibration-resistant package, reliable screw terminal input connections, and optional bezel assembly for environmental protection.

Performance Highlights:

Accuracy: ±0.05%FS (±1 count) after a 1-minute warm-up.
Temperature Drift: ±0.15 ±0.3 counts/°C (0 to +60°C).
Operating Temperature: 0 to +60°C, storage temperature -40 to +75°C.
Humidity: 0 to 95% non-condensing.
Weight: 0.6 ounces (17 grams).

Models Available:

Unipolar Reading (DMS-20PC-4/20S): Displays positive values.
Bipolar Reading (DMS-20PC-4/20B): Displays both positive and negative values.
Positive Reading (DMS-20PC-4/20P): Displays only positive values.

Setup and Calibration:

DIP Switches: Control input range, decimal points, and display readings.
Potentiometers: Adjust span (gain) and zero (offset).
* Calibration: Follow the detailed instructions provided for accurate calibration to specific desired readings.