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DMS-30PC-4/20S
4-20mA Input 3? Digit Panel Meters
with Full-Size LED Displays
Performance/Functional Speci?cations
Typical at T A = +25°C, unless otherwise noted.
Ordering Information
DMS-30PC-4/20S-5RS-C
+5V supply, standard-intensity red LED's
Current Loop Input
Full Scale Input Range
Min.
+3.5
Typ.
–
Max.
+22
Units
mA
DMS-30PC-4/20S-5GS-C
DMS-30PC-4/20S-5RL-C
DMS-30PC-4/20S-5RH-C
+5V supply, standard-intensity green LED's
+5V supply, low-power red LED's
+5V supply, high-intensity red LED's
Input Impedence
Voltage Drop
Overcurrent Protection
Performance
Sampling Rate
–
–
–
100 –
– 2.0
±0.15 ±0.3
2.5 reading per second
Ohms
Volts
mA
DMS-30PC-4/20S-24RL-C
DMS-30PC-4/20S-24RS- I -C
DMS-30PC-4/20S-24RH- I -C
DMS-30PC-4/20S-24BS- I -C
DMS-30PC-4/20S-24GS- I -C
+7.5V to +32V supply, low-power red LED's
+24V isolated supply, standard-intensity
red LED’s
+24V isolated supply, high-intensity red LED’s
+24V isolated supply, high-intensity blue LED’s
+24V isolated supply, standard-intensity
green LED’s
Accuracy (1 minute warm-up)
±0.05%FS ±1 Count
ACCESSORIES
Temperature Drift
–
±0.15
±0.3
Cnts/°C
DMS-BZL1-C
Panel-mount bezel assembly
Power Supply Requirements
DMS-BZL2-C
DMS-30-CP
Panel-mount bezel with sealing gasket
Panel cutout punch
DMS-30PC-4/20S-5RS
DMS-30PC-4/20S-5GS
DMS-30PC-4/20S-5RH
DMS-30PC-4/20S-5RL
+4.75 to +5.25Vdc at 225mA max.
+4.75 to +5.25Vdc at 225mA max.
+4.75 to +5.25Vdc at 225mA max.
+4.75 to +5.25Vdc at 20mA max.
A panel-mount retaining clip is supplied with each model.
DIP-Switch Settings Table ?
DMS-30PC-4/20S-24RL
+7.5 to +32Vdc at 30mA max.
Display Reading
SW1
SW2
SW3
SW4
DMS-30PC-4/20S-24XX-I (models)
Display
Display Type and Size
Polarity Indication
Overrange Indication
Physical/Environmental
+21.6 to +26.4Vdc at 60mA max.
3? digit, 0.56"/14.2mm high LED
"–" for negative readings
"–1_ _ _ " for negative inputs
"1_ _ _ " for positive inputs
1.
2.
3.
4.
5.
6.
000 to 100-300
000 to 400-600
000 to 700-1999
±100
±200 to ±300
±400 to ±600
On
Off
On
On
On
On
On
On
Off
On
On
Off
On
Off
Off
On
Off
Off
Off
Off
Off
Off
Off
Off
Operating Temperature
0
–
+60
°C
7.
±700 to ±1999
Off
Off
Off
On
Storage Temperature
Humidity (non-condensing)
–40
0
–
–
+75
95
°C
%
? When looking up DIP-switch settings in the Table and the desired display read-
ings happen to fall between two switch settings, try performing the adjustments
Case Material
Weight
Polycarbonate
1 ounces (28 grams)
with both settings to determine which one offers the better settability. Please
keep in mind that the DMS-30PC meter (from which the DMS-30PC-4/20S is
derived) has an accuracy speci?cation of ±2 counts (max.). Thus, it may not
always be possible to obtain the exact desired display reading.
? Input Grounding : Except for the "-I"suf?x models which feature isolated current
loop inputs, all other DMS-30PC-4/20S meters are supplied with their 4-20mA
negative-input terminals (TB1-2, "-") internally connected to their power supply
ground terminal (TB2-2, “-V”). This single-ended input con?guration is compatible
with most grounded-referenced 4-20mA transmitters.
Applications in which the DMS-30PC-4/20S and its associated 4-20mA
transmitter are connected to a common ground and the transmitter drives two or
more loads (for example, the meter in series with a PLC) must have the meter
connected as the ?rst device in the current loop, that is, closest to the system
ground (see Figure 2). If this is not possible and/or the meter must be connected
in the middle of the current loop, then'-I' suf?x models must be used to provide
the required isolation between the meter’s current loop input and the power sup-
ply ground ("-V"). See Figures 2, 3, 4, and 5 for typical loop connections.
OPERATING AND SETUP INSTRUCTIONS
As shipped, the DMS-30PC-4/20S is factory calibrated to read "000"
for a 4mA input and "1999" for a 20mA input. The following worst-case
procedure assumes the DMS-30PC-4/20S is completely mis-adjusted,
i.e., both potentiometers and the DIP switches are randomly set.
1 . Set R7 (gain/span adjust) and R3 (zero/offset adjust) fully clockwise,
roughly 20 turns, and place SW1-SW8 to OFF (down position).
2 . Set SW1 to ON (up position). See DIP switch setting #3.
3 . Apply a precision 4mA input, with proper polarity, and adjust R3 until
the meter's display reads "000".
4. Apply a precision 20mA and adjust R7 until the display reads "1999".
Repeat 3 and 4 to make sure adjustments do not affect one another.
5 . If desired, select the appropriate decimal point by setting either SW5,
SW6 or SW7 to ON (DP1, DP2 or DP3 respectively).
NOTE: If a display reading other than "000" to "1999" is desired,
refer to the DIP-Switch Settings Table for SW1-SW4 settings.
www.murata-ps.com/dpm
24 Mar 2011
email: sales@murata-ps.com
MPM_DMS-30PC-420S.B04 Page 2 of 4
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