The DMS-40PC-4/20S Series' superior design makes them ideal for use in demanding 4-20mA process monitoring applications requiring a full 4½ digits (0-19999) of display resolution. Their full-size, 0.52" (13.2mm) high, LED displays can be read in virtually any lighting condition and are available in green, high-intensity red, or low-power red.
Two operating power supply ranges are available: a wide-input +7.5 to 32V model for use with popular +12Vdc and +24Vdc industrial supplies, and +4.75 to 5.25V models for use with +5V logic supplies. The reverse-polarity protected +7.5-32V red LED model consumes only 30mA from a +24V supply, but still provides excellent display brightness.
The DMS-40PC-4/20's input, span, and offset circuits all employ super stable, ±0.5% thin-film chip resistors. Long-term stability and accuracy are assured by driving these tight-tolerance resistors with an ultra-stable, ±0.2% bandgap voltage reference. And, unlike many competing designs, the two precision 20-turn span and zero adjust potentiometers do not interact with one another.
All range-change and decimal point selections are made by configuring two gold-plated, vibration-resistant, six-position DIP switches. To further enhance reliability, both power supply and current loop connections are made via reliable screw-type terminal blocks. All these outstanding features make the DMS-40PC-4/20S Series meters the most rugged 4½ digit LED display process monitors available.

FEATURES
■ Full-size, 0.52" (13.2mm) high, LED digits
■ +7.5- 32Vdc model draws 30mA
■ +24V Isolated-power models
■ Dip-switch selectable range, offset, and decimal points
■ Non-interacting, 20-turn, gain (span) and offset (zero) adjustments
■ Insensitive to ground loops
■ 103 Ohm max. loop burden
■ Vibration-resistant package; reliable screw-terminal connections
■ Hundreds of different input/readout combinations
■ Miniature size: 2.17" x 0.92" x 1.02"
   (55mm x 23mm x 26mm)