DMS-20PC-7-DCM
–36 to –75Vdc, Self-Powered LED Display,
DC Voltage Monitor
FEATURES
Great for –48Vdc telecom power monitoring
Self-powered 2-wire operation
–36 to –75V operating input range
Ultra-low power consumption, 8mA (typ.) at –48V
–200V input transient protection
Reverse polarity protected to +100V
0.37"/9.4mm high, bright red, LED display
Subminiature 1.38" x 0.88" x 1.0" package
Super reliable, epoxy-encapsulated construction
–25 to +60°C operating temperature range
Functional Specifications
Input
Voltage Range
Current Consumption
Reverse Polarity Protection
Transient Protection
Performance
Sampling Rate
Resolution
Accuracy @ +25°C
Temperature Drift
(–25 to +60°C)
Mechanical
Dimensions
Display Type
Weight
Case Material
Environmental
Operating Temperature
Storage Temperature
Humidity (Non-condensing)
–36.0 to –75.0Vdc
13.0mA (max.)
+100V (max.)
–200V (1μsec duration)
2.5 readings/second
0.1V
±0.1V (typ.), ±0.2V (max.)
±0.2 counts/°C (max.)
1.38” x 0.88” x 1.00”
3 digit, red LED, 0.37”/9.4mm
1 ounce (28 grams)
Polycarbonate
–25 to +60°C
–40 to +75°C
0 to 95%
DATEL’s new DMS-20PC-7-DCM self-powered digital voltage monitor is designed
for monitoring –48V intermediate bus voltages in modern telecom/datacom/computer
equipment. Its compact size and low power consumption (8mA typical) make it
the ideal replacement for older, hard-to-read, analog panel
meters. Simply connect a –36 to –75Vdc input across the two
rear terminals and the meter is fully operational!
The DMS-20PC-7-DCM’s subminiature package (1.38” x
0.88” x 1.0”) houses a large, 0.37”/9.4mm, bright red LED
display which can be easily read from 15 feet away. Built-
in reverse polarity and transient protection assures simple,
trouble-free installation.
The DMS-20PC-7-DCM employs a high-resolution, 3�½
digit analog-to-digital converter and precision metal-film
resistors to achieve outstanding performance over its
entire operating temperature range of –25 to +60°C. A
rugged, epoxy-encapsulated, polycarbonate case
(available only from DATEL!) provides excellent protection
against moisture, shock and vibration.
Typical panel
mount installation
Suggested wiring
(User supplied)
Ordering Information
DMS-20PC-7-DCM
DMS-20-CP
DMS-BZL3
DMS-BZL4
–36.0 to –75.0V dc voltage monitor
Panel cutout punch
Panel mount bezel assembly
Panel mount bezel with sealing gasket
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 specified.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MPM_DMS-20PC-7-DCM.B02
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MURATA-PS [ MURATA POWER SOLUTIONS INC. ]
