DATEL DMS-20PC-6-DCM, DMS-20PC-5-DCM, DMS-20PC-4-DCM Datasheet
www.datel.com
®®
DMS-20PC-4/5/6-DCM
Self-Powered, LED, Negative
Actual Size
Features
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Self-powered, only two connections required
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–4.5 to –20Vdc, –18 to –50Vdc, and
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–30 to –264Vdc models
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Can be used with positve-reading DMS-20PC-DCM's
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Ultra-low power consumption (8mA typ.)
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0.37"/9.4mm high, bright red, LED displays
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Subminiature 1.38" x 0.88" x 1.0" packages
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Functional Specifications
Input
Voltage Range:
DMS-20PC-4-DCM –4.50 to –19.99Vdc
DMS-20PC-5-DCM –18.0 to –50.0Vdc
DMS-20PC-6-DCM –30 to –264Vdc
Current Consumption:
DMS-20PC-4/5-DCM 13mA (max.)
DMS-20PC-6-DCM 7mA (max.)
Performance
Sampling Rate 2.5 readings/second
Resolution:
DMS-20PC-4-DCM ±0.01V
DMS-20PC-5-DCM ±0.1V
DMS-20PC-6-DCM ±1V
Accuracy @ +25°C:
DMS-20PC-4-DCM ±0.01V (typ.), ±0.03V (max.)
DMS-20PC-5-DCM ±0.1V(typ.), ±0.2V (max.)
DMS-20PC-6-DCM ±1V(typ.), ±2V (max.)
Mechanical
Dimensions 1.38" x 0.88" x 1.00"
Display Type 3 & 3½ 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%
➀
Operation and accuracy at inputs above or below these ranges
are not specified.
Ordering Information
DMS-20PC-4-DCM –4.50 t o –19.99V dc voltage monitor
DMS-20PC-5-DCM –18.0 to –50.0V dc voltage monitor
DMS-20PC-6-DCM –30 to –264V dc voltage monitor
DMS-20-CP Panel cutout punch
DMS-BZL3 Panel mount bezel assembly
DMS-BZL4 Panel mount bezel with sealing gasket
Brass screws (6-32 thread) and a panel-mount retaining clip are
supplied with each meter
➀
Input, DC Voltage Monitors
DATEL's DMS-20PC-DCM Series of self-powered, negative-reading, dc
voltage monitors are great replacements f or older, hard-to-read, analog meters.
Simply connect a negative voltage across the rear terminals and the meters are
fully operational! Negative-input DCM's can be easily combined with positivereading DMS-20PC-DCM's for monitoring dual-polarity
power supplies.
Three versions are available: one for –4.50 to
–19.99Vdc (0.01V resolution), one for –18.0 to
–50.0Vdc (0.1V resolution), and one for –30 to
–264Vdc (1V resolution). Their large, 0.37"/
9.4mm, bright red LED displays can be easily read
from 15 feet away. Built-in reverse polarity
protection assures simple, trouble-free installation.
All DMS-20PC-DCM's employ a high-resolution, 3½
digit A/D converter and precision metal-film resistors
to achieve outstanding performance over an
operating temperature range of –25 to +60°C.
A rugged, epoxy-encapsulated, polycarbonate
case provides excellent protection against
moisture, shock and vibration.
Mechanical Specifications
Dimensions in inches (millimeters)
Tolerances: 2 PL Dec ±0.02 (±0.51)
Recommended panel cutout dimensions:
Internal corner radii 0.032 (0.81) Max.
3 PL Dec ±0.010 (±0.254)
1.336 (33.93)W × 0.838 (21.29)H
#6-32
UNC THD
0.75
(19.1)
+
0.44
(11.2)
0.32
(8.1)
1.07
(27.2)
0.10
(2.5)
–
0.80
(20.3)
#2-56 INSERT
0.156 (3.96) DEEP
Optional Bezel
(1.016)
(25.4)
DMS-BZL3
1.63 (41.4)
1.83 (46.5)
1.00
0.04
0.88
(22.4)
0.19
(4.8)
0.04
(1.016)
0.04
(1.016)
1.28
(32.5)
0.10
(2.5)
0.37
(9.4)
–
Typical panel
mount installation
Suggested wiring
(User supplied)
1.30
(33.0)
+
DMS-20PC-4-DCM
®®
1.38
(35.1)
DS-0349A 1/98
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.
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