Functional Specifications

Suggested wiring (User supplied)

Input

Voltage Range

240-310Vrms (47-99Hz)

85-140Vrms (350-450Hz)

Current Consumption

50mArms (max.)

Performance

Sampling Rate

2.5 readings/second

Measurement Type

Half-wave average, rms

calibrated for sinusoidal input

Accuracy @ +25°C

±1V (typ.), ±2V (max.)

Temperature Drift

(–25 to +60°C)

±0.15 Volts/°C (max.)

Mechanical

Dimensions

1.38” x 0.88” x 1.00”

Display Type

3 digit, red LED, 0.37”/9.4mm

Weight

1 ounce (28 grams)

Case Material

Polycarbonate

Environmental

Operating Temperature

–25 to +60°C

Storage Temperature

–40 to +75°C

Humidity (Non-condensing) 0 to 95%

Operation and accuracy at inputs above or below this range are

not specified.

DMS-20PC-2-LM-C

High-voltage ac line monitor with screw terminals and screws

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

Typical panel mount installation

Ordering Information

MPM_DMS-20PC-2LM.B02 Page 1 of 2

DMS-20PC-2-LM

Self-Powered LED Display High-Voltage,

50/60/400Hz AC Line Monitor

For full details go to

www.murata-ps.com/rohs

www.murata-ps.com

DATEL’s DMS-20PC-2-LM is a component-size, self-contained, low-cost ac voltmeter

specifically designed for high-voltage or high-frequency operation. The DMS-20PC-2-LM’s

unique power-supply circuitry allows a single model to

operate from either 240 to 310Vac with 50/60Hz inputs or

from 85 to 140Vac with 400Hz inputs. The meter requires

no external components or auxiliary power for full opera-

tion! Its large, 0.37"/9.4mm, bright red LED display is

easily readable under virtually all lighting conditions.

DMS-20PC-2-LM employs half-wave sinusoidal

averaging (rms calibrated) to achieve a display resolu-

tion of 1Vac over its full operating range. Packaged in

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

encapsulated for ruggedness.

This low-cost, extremely versatile digital voltme-

ter is ideal for use in emergency power equipment,

277Vac fluorescent lighting systems, 400Hz aircraft

installations, and any other application requiring

accurate, high-voltage or high-frequency, ac line

monitoring.

FEATURES

Self-powered, two-terminal operation

Dual operating ranges: 240-310Vac at 50/60Hz or

85-140Vac at 400Hz

Half-wave averaging, rms calibrated

Large, easy-to-read, bright red 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