DMS-40PC Series
4�½ Digit, LED Display Digital Panel Voltmeters
Performance/Functional Specifications
Typical at T
A
= +25°C and supply voltage = +5V using the single-ended input
circuit, unless otherwise noted.
Analog Inputs
Full Scale Input Range:
DMS-40PC-1
DMS-40PC-2
DMS-40PC-3
Input Impedence:
DMS-40PC-1
DMS-40PC-2, -3
Overvoltage Protection
Common Mode Voltage Range
CMRR
(dc to 60Hz)
Control Inputs
Decimal Pt. Placement
(Pins 4-6, 8)
Display Test
(Pin 2)
Display Hold
(Pin 9)
BCD Outputs
Logic Levels
(1 LSTTL load max.):
Logic “1”
Logic “2”
Performance
Sampling Rate
Accuracy
(3 minute warm-up):
DMS-40PC-1 (Vin = +1.9V)
DMS-40PC-2 (Vin = +19V)
DMS-40PC-3 (Vin = +190V)
Zero Reading
(Vin = 0 Volts)
Temperature Drift
(0 = +50°C)
DMS-40PC-1
DMS-40PC-2, -3
Power Supply Requirements
Supply Voltage
Supply Current:
Standard Models
Low-Power Models
Display
Display Type and Size
Polarity Indication
Overrange Indication
Physical/Environmental
Operating Temperature
Storage Temperature
0
–20
–
–
+50
+75
°C
°C
4�½ digit, 0.52"/13.2mm high LED
Autopolarity ("–" for negative Vin)
"–0000" (flashing) for negative Vin
"0000" (flashing) for positive Vin
–
–
+100
+35
+140
+50
mA
mA
+4.75
+5.00
+5.25
Volts
–
–
±0.4
±0.4
±1
±1.5
Cnts/°C
Cnts/°C
–
–
–
“–001”
±2
±3
±3
“000”
±3
±4
±4
“001”
Counts
Counts
Counts
2.5 reading per second
+2.4
–
–
+0.4
–
+0.8
Volts
Volts
Tie to pin 3 to activate
Tie to pin 3 to activate all segments
Tie to pin 3 to hold last reading
–
–
–
–
100
0.8
–
–
–
1000
1
–
–
86
–
–
±250
±2
–
MΩ
MΩ
Volts
Volts
dB
±2
±20
±200
–
–
–
Volts
Volts
Volts
Min.
Typ.
Max.
Units
Humidity (non-condensing)
Case Material
Weight
0
–
95
%
Polycarbonate
0.75 ounces (21 grams)
Applies for transient or continuous overvoltages applied to (+) INPUT HI (pin 11) with (–)
INPUT LO (pin 12) properly connected. Pin 12 is not overvoltage protected (see Figure 1).
Voltages applied to pin 12 should not exceed the supply voltage.
See Technical Notes.
BCD outputs are optional and must be specified in the part number.
See Ordering Information.
Includes high-intensity and BCD-output models.
Ordering Information
DMS-40PC - 1 - R S - C
Input Range:
1
= ±2V
2
= ±20V
3
= ±200V
Add -C for RoHS
LED Color:
GS
= Standard Green
RH
= High-Intensity Red
RL
= Low-Power Red
RS
= Standard Red
YS
= Standard Yellow
BCD Output Models:
BCD outputs are only available on standard red meters.
DMS-40PC-1-RS-BCD-C
for ±2V input range
DMS-40PC-2-RS-BCD-C
for ±20V input range
DMS-40PC-3-RS-BCD-C
for ±200V input range
DMS-40PC-1-RL-BCD-C
for ±2V input range
DMS-40PC-2-RL-BCD-C
for ±20V input range
DMS-40PC-3-RL-BCD-C
for ±200V input range
Accessories:
DMS-30-CP
DMS-BZL1-C
DMS-BZL2-C
DMS-EB-C
Panel cutout punch
DMS-40 bezel assembly
DMS-40 bezel assembly with sealing gasket
Application/evaluation board with standard
MOLEX connector, decimal point solder pads
and attenuation resistor pads.
A panel-mount retaining clip is supplied with each model.
TECHNICAL NOTES
1. ANALOG COMMON (Pin 10):
This pin is an internal, low-noise
ground for the DMS-40PC. It is internally connected to pin 3
(5V RETURN). Do not connect pin 10 to either pin 3 or your system
ground as this will create a ground loop and possibly result in errone-
ous readings.
2. REFERENCE INPUT/OUTPUT (Pin 7):
This pin accesses the meter’s
internal reference and is used during the factory calibration proce-
dure. Pin 7 should be left open in most common applications. It can
be used in certain “ratiometric” applications in which it is desirable
for the meter’s reference to track an external reference. See Ap Note
3 in the DATEL Panel Meter Catalog for more details.
3. DISPLAY TEST (Pin 2):
Connecting pin 2 to ground (pin 3, 5V
RETURN) will activate all LED segments, and the display will read
“–18888” regardless of the actual applied input. To reduce self-heat-
ing, the display should not be left in the “test” mode for more than 10
seconds. This pin should be left open if unused.
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
www.murata-ps.com
MPM_DMS-40PC.C03
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MURATA-PS [ MURATA POWER SOLUTIONS INC. ]
