DMS-20PC-3-LM-C View Datasheet(PDF) - Murata Power Solutions

Part Name

Description

Manufacturer

DMS-20PC-3-LM-C

Self-Powered LED Display 480V AC Line Monitor

Murata Power Solutions 

www.murata-ps.com

OBSOLETE PRODUCT

Contact Factory for Replacement Model

DMS-20PC-3-LM

Self-Powered LED Display 480V

AC Line Monitor

FEATURES

■ Self-powered, two-terminal operation

■ 350 to 600Vac operating input range

■ Half-wave averaging, rms calibrated

■ Large, easy-to-read, bright red or green LED display

■ Rugged, epoxy-encapsulated construction

■ Built-in bezel for panel mounting

■ Reliable screw terminals for easy installation

■ Small 1.38˝ x 0.88˝ x 1.0˝ package

Functional Specifications

Input

Voltage Range ➀

Current Consumption

350-600Vrms (47-63Hz)

50mArms (max.)

Performance

Sampling Rate

Measurement Type

Accuracy @ +25°C

Temperature Drift

(–25 to +60°C)

2.5 readings/second

Half-wave average, rms

calibrated for sinusoidal input

±1V (typ.), ±2V (max.)

±0.15 Volts/°C (max.)

Mechanical

Dimensions

Display Type

Weight

Case Material

6-32 screw torque

1.38˝ x 0.88˝ x 1.00˝

3 digit LED, 0.37˝/9.4mm

1 ounce (28 grams)

Polycarbonate

6-8 in-lb (0.7 – 0.9N-m)

Environmental

Operating Temperature –25 to +60°C

Storage Temperature

–40 to +75°C

Humidity (Non-condensing) 0 to 95%

➀ Operation and accuracy at inputs above or below this range are

not specified.

　

For full details go to

www.murata-ps.com/rohs

DATEL’s DMS-20PC-3-LM is a low-cost, self-powered, 2-wire digital voltmeter

designed for monitoring 480Vac 3-phase primary power. The DMS-20PC-3-LM’s unique

power-supply design allows a single model to operate

from 350 to 600Vac (47-63Hz). The meter requires no

external components or auxiliary power for full opera-

tion! Its large, 0.37˝/9.4mm, bright red or green LED

display is easily readable under virtually all lighting

conditions.

DMS-20PC-3-LM employs rms calibrated,

half-wave sinusoidal averaging to achieve a display

resolution of 1Vac over its full operating range.

Packaged in a subminiature (1.38˝ x 0.88˝ x 1.0˝)

red-filter case with a built-in bezel, the meter is epoxy

encapsulated for ruggedness. An optional bezel as-

sembly, featuring metal fasteners, simplifies panel

mounting.

This easy-to-use, vibration-proof voltmeter is

the ideal digital upgrade for fragile analog-style

panel meters in 480Vac power distribution equip-

ment. It similarly excels in any new application requir-

ing accurate, high-voltage, ac line monitoring.

Typical panel mount installation and

suggested wiring (user supplied)

Ordering Information

DMS-20PC-3-LM-C Red LED display

DMS-20PC-3-LM-G-C Green LED display

DMS-BZL3-C

Panel mount bezel

DMS-BZL4-C

Panel mount bezel with sealing gasket

DMS-20-CP

Panel cutout punch

Brass screws (6-32 thread) and a panel-mount retaining clip are supplied with each meter

FUSED

AC POWER

SUPPLY

Typical Connection Diagram

www.murata-ps.com/support

MPM_DMS-20PC-3LM_D07 Page 1 of 2

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