DMS-30LCDA-4 MURATA-PS [Murata Power Solutions Inc.], DMS-30LCDA-4 Datasheet

DMS-30LCDA-4

Manufacturer Part Number

DMS-30LCDA-4

Description

Loop-Powered, 1.8V Drop, 4-20mA Process Monitors with Full-Size LCD Displays

Manufacturer

MURATA-PS [Murata Power Solutions Inc.]

Datasheet

1.DMS-30LCDA-4.pdf (6 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

H&T Electronics

Part Number:

DMS-30LCDA-4/20B

Quantity:

180

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

DMS-30LCDA-4/20S-C

Manufacturer:

Murata Power Solutions Inc

Quantity:

135

Current page: 1 of 6
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FEATURES

■

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

Improved-performance replacement for

DMS-30LCD-4/20S

Subminiature package; Less than 0.90"

behind-the-panel depth

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

Available in red, blue or green LED displays

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

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www.murata-ps.com

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

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

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DMS-30LCDA-4/20 Series

Monitors with Full-Size LCD Displays

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Technical enquiries email: sales@murata-ps.com, tel:

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MPM_DMS30-LCDA.B02 Page 1 of 6

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+1 508 339 3000

Related parts for DMS-30LCDA-4

DMS-30LCDA-4 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. � � � � � � � � � � � � ...

Page 2

... As shipped, the DMS-30LCDA-4/20S is calibrated to read “000” for a 4mA input and “1800” for a 20mA input. These readings are used for factory test-purposes only ...

... Display readings other than those shown in Table 3 are possible, contact DATEL for more information. Loop-Powered, 1.8V Drop, 4-20mA Process When configuring the DMS-30LCDA-4/20B for the first 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 configure DIP-switches SW1, SW2, and SW3 accordingly. Please note, positions SW4 and SW5 are not used in bipolar ‘ ...

Page 4

... This example illustrates the DMS-30LCDA-4/20P’s capability to display higher differential readings than those indicated in Table 4. This example also illustrates how the DMS-30LCDA-4/20P can be used to display the output levels of a 4-20mA transmitter with higher precision (0.01mA versus 0.1mA) than the example previously described. ...

Page 5

... Table 5 and the two examples that follow describe the operation of this model in greater detail. The first step when configuring the DMS-30LCDA-4/20I for the first 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 read- ings, select the appropriate DIP-switch setting number from Table 5 ...

Page 6

... USA: Canada: UK: France: Germany: Japan: 11/25/08 China: © 2008 Murata Power Solutions, Inc. Singapore: www.murata-ps.com DMS-30LCDA-4/20 Series Monitors with Full-Size LCD Displays BEZEL INSTALLATION USA IN MADE ® ® BEZEL RETAINING CLIP INSTALLATION USA IN MADE ® ® Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Toronto, Tel: (866) 740-1232, email: toronto@murata-ps ...

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DMS-30LCDA-4 MURATA-PS [Murata Power Solutions Inc.], DMS-30LCDA-4 Datasheet

DMS-30LCDA-4

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Related parts for DMS-30LCDA-4

DMS-30LCDA-4 Summary of contents

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