DMS-30LCDA-4/20P-C Murata Power Solutions Inc, DMS-30LCDA-4/20P-C Datasheet

DMS-30LCDA-4/20P-C

Manufacturer Part Number

DMS-30LCDA-4/20P-C

Description

4-20mA LCD Loop-Power 3.5 Dig

Manufacturer

Murata Power Solutions Inc

Datasheet

1.DMS-30LCDA-420S-C.pdf (6 pages)

Specifications of DMS-30LCDA-4/20P-C

Display Type

3 - 1/2 Digit LCD

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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FEATURES

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www.murata-ps.com

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

Self-powered 2-wire operation; no separate

supply required

Unipolar, Bipolar, Positive, and Inverse Reading Models

Subminiature package; Less than 0.90"

behind-the-panel depth

Large, 0.40"/10.2mm 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-current/readout combinations

Vibration-resistant package; reliable

screw-terminal input connections

www.murata-ps.com/rohs

For full details go to

www.murata-ps.com/dpm

Figure 1. DMS-30LCDA-4/20 Simpliﬁ ed Schematic

Murata Power Solution’s new DMS-30LCDA-4/20 Series’ 1.8V nominal loop-drop is the

lowest of any comparably priced, 4-20mA input, 3½-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 it’s loop-powered, all operating power is derived directly from the

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

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

which features vibration-resistant, gold-plated contacts—there 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 Series’

DIP switch and adjustment potentiometers can accommodate literally hundreds of different

input-current/output-reading combinations.

contrast LCD display that can be read in virtually all lighting conditions—including 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.

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

DMS-30LCDA-4/20 Series’ subminiature package houses a large, 0.40”/10.2mm, high-

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

DMS-30LCDA-4/20 Series

Monitors with Full-Size LCD Displays

19 Jan 2011 MPM_DMS30-LCDA.B05 Page 1 of 6

email: sales@murata-ps.com

Related parts for DMS-30LCDA-4/20P-C

DMS-30LCDA-4/20P-C Summary of contents

Page 1

... All these outstanding features combine to make the new DMS-30LCDA-4/20 Series ideal for all your 4-20mA process-monitoring instrumentation needs. Figure 1. DMS-30LCDA-4/20 Simpliﬁ ed Schematic www ...

Page 2

... Thus, it may not always be possible to obtain the exact desired display reading. Ordering Information DMS-30LCDA-4/20S-C** Unipolar reading, loop-powered LCD meter DMS-30LCDA-4/20B-C Bipolar reading, loop-powered LCD meter DMS-30LCDA-4/20P-C Positive reading, loop-powered LCD meter DMS-30LCDA-4/20I-C Inverse reading, loop-powered LCD meter DMS-BZL1 Bezel assembly ...

Page 3

... Table 3 are possible, contact DATEL for more information. Loop-Powered, 1.8V Drop, 4-20mA Process When conﬁ guring the DMS-30LCDA-4/20B for the ﬁ rst time, or when selecting a new range, set both R3 and R7 fully clockwise (roughly 22 turns) to their minimum offset/minimum-span positions, respectively. Then select the desired readings from Table 3 and conﬁ ...

Page 4

... R3’s clockwise adjustment-range is reduced. Example #3 below illustrates this point. Contact DATEL if there is any doubt as to whether or not the DMS-30LCDA-4/20P can be conﬁ gured for your display-reading requirements. The ﬁ rst step when initially conﬁ guring the DMS-30LCDA-4/20P, or ...

Page 5

... The ﬁ rst step when conﬁ guring the DMS-30LCDA-4/20I for the ﬁ rst time, or when changing to a different range set both R3 and R7 to their full clockwise positions, roughly 22 turns. Next, using the desired display readings, select the appropriate DIP-switch setting number from Table 5 ...

Page 6

... Speciﬁ cations are subject to change without notice. www.murata-ps.com/locations PANEL ® ® BEZEL RETAINING CLIP INSTALLATION PANEL ® ® © 2011 Murata Power Solutions, Inc. email: sales@murata-ps.com 19 Jan 2011 MPM_DMS30-LCDA.B05 Page ...

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