DMS-LM3 Datasheet, PDF (1/2 Pages) Murata Manufacturing Co., Ltd. – Self-Powered LED Display 480V AC Line Monitor

DMS-20PC-3-LM
Self-Powered LED Display 480V
AC Line Monitor
FEATURES
N _{Self-powered, two-terminal operation}
N _{350 to 600Vac operating input range}
N _{Half-wave averaging, rms calibrated}
N _{Large, easy-to-read, bright red LED display}
N _{Rugged, epoxy-encapsulated construction}
N _{Built-in bezel for panel mounting}
N _{Reliable screw terminals for easy installation}
N _{Small 1.38˝ x 0.88˝ x 1.0˝ package}
Functional Specifications
Input
Voltage Range ~
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
1.38˝ x 0.88˝ x 1.00˝
3 digit, red LED, 0.37˝/9.4mm
1 ounce (28 grams)
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.
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 operation!
Its large, 0.37˝/9.4mm, bright red 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 reso-
lution 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 assembly, 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 equipment. It
similarly excels in any new application requiring ac-
curate, high-voltage, ac line monitoring.
Typical panel mount installation
Suggested wiring (User supplied)
Ordering Information
DMS-20PC-3-LM-C
DMS-BZL3-C
DMS-BZL4-C
DMS-20-CP
350-600Vac line monitor with screw terminals and screws
Panel mount bezel
Panel mount bezel with sealing gasket
Panel cutout punch
Brass screws (6-32 thread) and a panel-mount retaining clip are supplied with each meter
Ḥ
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
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