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DMS-20PC-2-LM
Self-Powered LED Display High-Voltage,
50/60/400Hz AC Line Monitor
C
?
US E156931
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
? Approvals to UL/cUL/IEC/61010-1
Functional Speci?cations
DATEL’s DMS-20PC-2-LM is a component-size, self-contained, low-cost ac voltmeter
speci?cally 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 operation! Its large, 0.37"/9.4mm,
bright red LED display is easily readable under virtu-
ally all lighting conditions.
DMS-20PC-2-LM employs half-wave sinusoidal
averaging (rms calibrated) to achieve a display
resolution of 1Vac over its full operating range.
Packaged in a red-?lter case with a built-in bezel,
the meter is epoxy encapsulated for ruggedness.
This low-cost, extremely versatile digital volt-
meter is ideal for use in emergency power equip-
Input
Voltage Range ?
240-310Vrms (47-99Hz)
85-140Vrms (350-450Hz)
ment, 277Vac ?uorescent lighting systems, 400Hz
aircraft installations, and any other application
requiring accurate, high-voltage or high-frequency,
Current Consumption
UL/IEC61010-1
50mArms (max.)
Measurement category II
ac line monitoring.
Typical panel mount installation
Suggested wiring (user supplied)
Performance
Sampling Rate
Measurement Type
2.5 readings/second
Half-wave average, rms
Ordering Information
calibrated for sinusoidal input
DMS-20PC-2-LM-C
High-voltage ac line monitor with screw terminals and screws
Accuracy @ +25°C
Temperature Drift
(–25 to +60°C)
±1V (typ.), ±2V (max.)
±0.15 Volts/°C (max.)
DMS-BZL3-C
DMS-BZL4-C
DMS-20-CP
Panel mount bezel
Panel mount bezel with sealing gasket
Panel cutout punch
Mechanical
Dimensions
Display Type
Weight
Case Material
6-32 screw torque
Environmental
Operating Temperature
Storage Temperature
Humidity (Non-condensing)
1.38” x 0.88” x 1.00”
3 digit, red LED, 0.37”/9.4mm
1 ounce (28 grams)
Polycarbonate
6-8 in-lb (0.7 – 0.9N-m)
–25 to +60°C
–40 to +75°C
0 to 95%
Brass screws (6-32 thread) and a panel-mount retaining clip are supplied with each meter
? Operation and accuracy at inputs above or below this range are
not speci?ed.
CURRENT
LIMITED
For full details go to
www.murata-ps.com/rohs
Typical Connection Diagram
AC SUPPLY
www.murata-ps.com/support
MPM_DMS-20PC-2LM.B06 Page 1 of 2
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