DMS-30LCDA-4 Datasheet, PDF(1/6 Page) Murata Power Solutions Inc. – Loop-Powered, 1.8V Drop, 4-20mA Process Monitors with Full-Size LCD Displays

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DMS-30LCDA-4 Datasheet, PDF (1/6 Pages) Murata Power Solutions Inc. – Loop-Powered, 1.8V Drop, 4-20mA Process Monitors with Full-Size LCD Displays

DMS-30LCDA-4/20 Series

Loop-Powered, 1.8V Drop, 4-20mA Process

Monitors with Full-Size LCD Displays

FEATURES

â Super-low loop drop: 1.8V typical, 2.0V max.

â Self-powered 2-wire operation; no separate

supply required

â Unipolar, Bipolar, Positive, and Inverse Reading Models

â Improved-performance replacement for

DMS-30LCD-4/20S

â Subminiature package; Less than 0.90"

behind-the-panel depth

â Large, 0.40"/10.2mm high, sunlight-viewable LCD display

â Available in red, blue or green LED displays

â Non-interacting gain (span) and offset (zero)

20-turn potentiometers

â DIP-switch selectable range and decimal points

â Hundreds of different input-current/readout combinations

â Vibration-resistant package; reliable

screw-terminal input connections

Murata Power Solutionâs new DMS-30LCDA-4/20 Seriesâ 1.8V nominal loop-drop is the

lowest of any comparably priced, 4-20mA input, 3Â½-digit process monitors with full-size

LCD displays. This super-low loop-drop guarantees a maximum burden of no more than

100 Ohms! And because itâs loop-powered, all operating power is derived directly from the

loop current itself; no separate power source is required! Their floating 2-wire design allows

DMS-30LCDA-4/20 Series process monitors to be connected anywhere in the current loop.

All decimal point and range-change selections are made via an eight-position DIP switch

which features vibration-resistant, gold-plated contactsâthere are no cumbersome jumpers

or solder gaps to contend with. Both gain (span) and offset (zero) adjustments are performed

using 20-turn, non-interacting potentiometers. Four different models accommodate unipolar,

bipolar, positive, and inverse display-reading applications. The DMS-30LCDA-4/20 Seriesâ

DIP switch and adjustment potentiometers can accommodate literally hundreds of different

input-current/output-reading combinations.

DMS-30LCDA-4/20 Seriesâ subminiature package houses a large, 0.40â/10.2mm, high-

contrast LCD display that can be read in virtually all lighting conditionsâincluding full sunlight!

The two connections to the external loop are made via a reliable screw-type terminal block. For

environmentally demanding applications, an optional panel-mount bezel assembly, featuring

screw fasteners and a rubber gasket, provides excellent resistance to dust and moisture. All

these outstanding features combine to make the new DMS-30LCDA-4/20 Series ideal for all

your 4-20mA process-monitoring instrumentation needs.

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For full details go to

www.murata-ps.com/rohs

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Figure 1. DMS-30LCDA-4/20 Simplified Schematic

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www.murata-ps.com

Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000

MPM_DMS30-LCDA.B02â Page 1 of 6

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