DMS-20PC-2-LM
Ordering Information
Features
Self-Powered, LED Display
High-Voltage, 60/400Hz, AC Monitor
Functional Specifications
Actual Size
DMS-BZL3
Optional Bezel
Input
Voltage Ranges:
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 @ +25C
1V (typ.), 2V (max.)
Temperature Drift
(25 to +60C)
0.15 VoltsC (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 +60C
Storage Temperature
40 to +75C
Humidity (Non-condensing)
0 to 95%
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
Suggested wiring
(User supplied)
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 operation! 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
resolution 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
voltmeter 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.
Typical panel
mount installation
Mechanical Specifications
Dimensions in inches (millimeters)
Tolerances:
2 PL Dec 0.02 (0.51)
3 PL Dec 0.010 (0.254)
Recommended panel cutout dimensions:
1.336 (33.93)W 0.838 (21.29)H
Internal corner radii 0.032 (0.81) Max.
Operation and accuracy at inputs above or below these
ranges are not specified.
DMS-20PC-2-LM
High-voltage ac monitor with screw
terminals and screws
DMS-20-CP
Panel cutout punch
DMS-BZL3
Panel mount bezel
DMS-BZL4
Panel mount bezel with sealing gasket
Brass screws (6-32 thread) and a panel-mount retaining clip are
supplied with each meter
DS-0389B
1/99
DATEL, Inc., Mansfield, MA 02048 (USA)
Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356
Email: sales@datel.com
Internet: www.datel.com
DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained
herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.
DM
S-20P
C-2-
LM
0.75
(19.1)
#6-32
UNC THD
0.44
(11.2)
0.80
(20.3)
0.32
(8.1)
0.04
(1.016)
0.88
(22.4)
1.00
(25.4)
0.04
(1.016)
0.04
(1.016)
1.30
(33.0)
1.38
(35.1)
0.19
(4.8)
1.28
(32.5)
0.10
(2.5)
1.07
(27.2)
0.10
(2.5)
#2-56 INSERT
0.156 (3.96) DEEP
1.63 (41.4)
1.83 (46.5)
0.37
(9.4)
www.datel.com
PDF 
ZIP