DMS-30PC-4/20S
4-20mA Input 3�½ Digit Panel Meters
with Full-Size LED Displays
FEATURES
Full-size, 0.56" (14.2mm), red or green LED's
Low-power or high-intensity LED's optional
Single +5V or optional +7.5-32V supply
+24V Isolated-power models
Low power consumption, 15mA from +5V
100Ω impedance, 2V loop drop
DIP-switch selectable range and decimal points
Hundreds of different input/readout combinations
Vibration-resistant package; Reliable screw-terminal
input connections
High-quality, 20-turn, gain/span and zero/offset adjust
potentiometers
Miniature size:
2.17" x 0.92" x 1.02"
55mm x 23mm x 27mm
The DMS-30PC-4/20S Series of 4-20mA current-loop-input, 3�½ digit, LED display
panel meters offer an outstanding combination of electrical performance, display read-
ability, ease-of-use, and long-term reliability. Each of the 5 models features a large
(0.56"/14.2mm), red or green, LED display. Low-power or high-intensity red models are
optional. Power supplies can be a single +5V or an optional, wide-range +7.5-32V (24V
nominal). All DMS-30PC-4/20S meters are constructed using DATEL's super-reliable, field-
proven, epoxy-encapsulated DMS-30PC digital voltmeters. The entire assembly utilizes
100% soldered connections. These are the most rugged, 4-20mA input, panel meters in the
world.
Gain (span) and offset (zero) adjustments are both performed with high-precision,
20-turn potentiometers. All decimal point and range-change settings are made on a gold-
plated, vibration-resistant, DIP switch; there are no cumbersome solder gaps or jumpers
to contend with. Connections to the current loop and the power source are both made on a
rugged, four-position, screw-type terminal block.
The DMS-30PC-4/20S's user-friendly design accommodates virtually hundreds
of different input-current/output-reading combinations. This eliminates the majority of
requirements for more costly, long-lead-time, factory "specials"– especially in applications
requiring several different-range meters. A bezel assembly, featuring secure screw fasten-
ers and an EPDM rubber gasket, is available for applications requiring moisture and/or dust
resistance.
+5V
DMS-30PC-1
3�½ DIGIT A/D
CONVERTER
DATA
R3
ZERO
ADJUST
R7
GAIN
ADJUST
DP1
DP2
DP3
BAND-GAP
REFERENCE
CIRCUIT
ON
+5V
1
2
3
4
5
6
7
N.C.
+5V
(SW1)
DIP
SWITCHES
VOLTAGE
CONVERTER
1
8
TB1
1
2
SG9
TB2
1
2
+
–
+
–
For full details go to
www.murata-ps.com/rohs
4-20mA
LOOP INPUT
–V is not connected to meter ground
on ‘-I’ suffix models.
+V
–V
POWER SUPPLY
INPUT
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MPM_DMS-30PC-420S.B01
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MURATA-PS [ MURATA POWER SOLUTIONS INC. ]
