DMS-20LCD-2/3 Series
Self-Powered, +50V and +150V LCD Display
2-Wire DC Voltage Monitors
FEATURES
Self-powered, 2-wire operation
+18.0 to +90.0Vdc or +50.0 to +150.0Vdc ranges
Ideal for 42V automotive systems and 120V chargers
Reverse polarity protected; 0.1V resolution
Built-in "VDC" annunciator
Large (0.37"/9.4mm) LCD displays
Subminiature 1.38" x 0.88" x 0.66" packages
Rugged, ABS package
DATEL’s DMS-20LCD-2/3-DCM, self-powered, +90V and +150V voltage monitors set
new standards for quality, performance, size and cost. Simply apply dc power to the two
rear terminals and the unit is fully operational---no additional components or connections
are required! Their large, 0.37”/9.4mm, LCD displays
feature built-in “VDC” annunciators and can be easily
read from 10 feet. Two models are available: one for
+42Vdc nominal operation (+18.0 to +90.0V range,
‘-2-DCM’), the other for +120Vdc nominal operation
(+50.0 to +150.0V range, ‘-3-DCM’). Reverse polarity
protection and 0.1V resolution are standard on both
models.
Like their +12V (‘-0-DCM’) and +24V (‘-1-DCM’)
counterparts, DMS-20LCD-2/3-DCM meters utilize a
precision analog-to-digital converter and ultra-stable
passive components to achieve excellent perfor-
mance over the wide operating temperature range of
0 to +60°C. A rugged, ABS plastic package provides
excellent protection against shock and vibration.
DMS-20LCD-DCM’s are the most accurate, LCD-dis-
play, dc-voltage monitors available at any price.
Typical panel mount installation and
suggested wiring (user supplied).
Functional Specifications
Input
Voltage Range:
DMS-20LCD-2-DCM
DMS-20LCD-3-DCM
Max. Current Consumption:
DMS-20LCD-2-DCM
DMS-20LCD-3-DCM
+18.0 to +90.0Vdc
+50.0 to +150.0Vdc
2mA @+50V, 3mA @ +90V
1.5mA @ +100V, 2mA @ +150V
Performance
Sampling Rate
2.5 readings/second
Accuracy @ +25°C:
DMS-20LCD-2-DCM
±0.1V (typ.), ±0.3V (max.)
DMS-20LCD-3-DCM
±0.2V (typ.), ±0.4V (max.)
Temperature Drift (0 to +60°C):
DMS-20LCD-2-DCM
±0.3 counts/°C (max.)
DMS-20LCD-3-DCM
±0.4 counts/°C (max.)
Mechanical
Display Type:
DMS-20LCD-2-DCM
DMS-20LCD-3-DCM
Weight
Case Material
Environmental
Operating Temperature
Storage Temperature
Humidity (Non-condensing)
Ordering Information
DMS-20LCD-2-DCM
DMS-20LCD-3-DCM
DMS-20-CP
DMS-BZL3
DMS-BZL4
+18.00 to 90.0V dc voltage monitor
+50.0 to 150.0V dc voltage monitor
Panel cutout punch
Panel mount bezel
Panel mount bezel with sealing gasket
3 digit LCD, 0.37"/9.4mm high
3�½ digit LCD, 0.37"/9.4mm high
0.5 ounce (14 grams)
ABS
0 to +60°C
– 20 to +75°C
0 to 85%
Brass screws (6-32 thread) and a panel-mount retaining clip are supplied with each meter
Operation and accuracy at voltages above or below these ranges
are not specified.
Meters are not sealed; Do not expose to moisture or other contaminants.
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-20LCD-23-DCM_B02
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MURATA-PS [ MURATA POWER SOLUTIONS INC. ]
