DMS-40PC Series
4�½ Digit, LED Display Digital Panel Voltmeters
FEATURES
Precision, autozeroing, factory-calibrated A/D converter
Scientific-grade accuracy, ±2 counts
Miniature size:
2.17" x 0.92" x 0.56"
55mm x 23mm x 14mm
DMS-40PC Series, 4�½ Digit, LED Display, Miniature DPM’s are fully self-contained,
component-like, plug-in meters that provide scientific-grade accuracy (typically ±2 counts
or ±0.005% of full scale) and outstanding reliability at a very affordable price.
Within its miniature (2.17” x 0.92” x 0.56”), epoxy-encapsulated package, each meter
contains a precision reference circuit; a high-resolution, autozeroing, factory-calibrated
A/D converter; and a large (0.52”/13.2mm), easy-to-read, LED display. LED’s are available
in red, yellow and green colors. Red LED’s are also offered in high-intensity or low-power
versions.
The versatile design of the DMS-40PC Series assures trouble-free installation and
long-term operation. Differential input voltage ranges include ±2V, ±20V and ±200V. Input
impedance is a minimum 800kΩ. Non-inverting inputs are overvoltage protected to ±250V,
and CMRR is typically 86dB (dc to 60Hz).
The DMS-40PC's epoxy-encapsulated package has an integral bezel and color filter.
The moisture and vibration-proof package is extremely rugged and well suited for harsh
environments and extended temperatures. Devices are fully specified for
0 to +50°C operation.
All models operate from a single +5V supply and typically consume 500mW. Low-
power models, whose display is just as bright as standard models, typically consume
175mW. DISPLAY TEST and HOLD functions are standard on each meter, and a complete
set of BCD outputs are optional for sending data to CPU's or remote displays.
+5V
Large (0.52"/13.2mm) LED display
Choice of red, green or yellow colors
High-intensity or low-power red LED's optional
Single +5V supply (175mW for low-power models)
Epoxy-encapsulated, 12-pin DIP with built-in color filter
and bezel
3 differential input voltage ranges
DISPLAY HOLD and TEST functions
Optional BCD data outputs for CPU interface
0 to +50°C temperature range
1
+5V SUPPLY
–5V
2
DISPLAY TEST
DC/DC
CONVERTER
V+
R2
1
12
(–) INPUT LO
0.01μF
R1
V–
909k
11
(+) INPUT HI
10 ANALOG
COMMON
3
5V RETURN
0 Vdc
A/D
CONVERTER
2.5V
REF.
4
DP 3
DATA
9
5
DP 2
8
DP4
6
DP 1
+5V
7
REFERENCE IN/OUT
1
DISPLAY HOLD
R2 is not used on ±2V (-1) models.
R2 = 101k on ±20V (-2) models and 9.2k on ±200V (-3) models.
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-40PC.C03
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MURATA-PS [ MURATA POWER SOLUTIONS INC. ]
