DMS-30PC-4 Datasheet, PDF (1/4 Pages) Murata Power Solutions Inc. – 4-20mA Input 3½ Digit Panel Meters with Full-Size LED Displays

DMS-30PC-4/20S
4-20mA Input 3½ Digit Panel Meters
with Full-Size LED Displays
FEATURES
N Full-size, 0.56" (14.2mm), red or green LED's
N Low-power or high-intensity LED's optional
N Single +5V or optional +7.5-32V supply
N +24V Isolated-power models
N _{Low power consumption, 15mA from +5V}
N 100Ω impedance, 2V loop drop
N DIP-switch selectable range and decimal points
N Hundreds of different input/readout combinations
N Vibration-resistant package; Reliable screw-terminal
input connections
N High-quality, 20-turn, gain/span and zero/offset adjust
potentiometers
N 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, 3½ 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.
R3
ZERO
ADJUST
R7
GAIN
ADJUST
+5V
3½ DIGIT A/D
CONVERTER
DATA
DMS-30PC-1
DP1
DP2
DP3
Ḥ
For full details go to
www.murata-ps.com/rohs
BAND-GAP
REFERENCE
CIRCUIT
+5V
TB1 _{1 2}
+
–
4-20mA
LOOP INPUT
N.C.
ON
12345678
(SW1)
DIP
SWITCHES
SG9
~ –V is not connected to meter ground
on ‘-I’ suffix models.
+5V
VOLTAGE
CONVERTER
1
TB2 _{1 2}
+
–
+V
–V
POWER SUPPLY
INPUT
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
MPM_DMS-30PC-420S.B01 Page 1 of 4