DMS-30DR Delta Electronics, DMS-30DR Datasheet - Page 2

• Manufacturer Part Number: DMS-30DR
• Description: Digit Panel Meters
• Manufacturer: Delta Electronics

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Performance/Functional Specifications
Typical at T
unless otherwise noted.
➀ Applies for transient or continuous overvoltages applied to (+) INPUT HI (pin 11) with
➁ See Technical Notes.
Analog Inputs
Full Scale Input Range:
Input Impedence:
Overvoltage Protection ➀
Common Mode Voltage Range
CMRR (dc to 60Hz)
Control Inputs ➁
Decimal Point Placement (Pins 4-6)
Ext. Bright (Pin 2)
Performance
Sampling Rate
Accuracy (3 minute warm-up):
Zero Reading (Vin = 0 Volts)
Temperature Drift (0 = +60°C)
+1.225V Reference Output (Pin 9)➁
Power Supply Requirements
Supply Voltage
Supply Current:
Display
Display Type and Size
Polarity Indication
Overrange Indication
Physical/Environmental
Operating Temperature
Storage Temperature
Humidity (non-condensing)
Case Material
Weight
DMS-30DR-0
DMS-30DR-1
DMS-30DR-2
DMS-30DR-3
DMS-30DR-0, -1
DMS-30DR-2, -3
DMS-30PC-0 (Vin = +0.19V)
DMS-30PC-1 (Vin = +1.9V)
DMS-30PC-2 (Vin = +19V)
DMS-30PC-3 (Vin = +190V)
Full Sunlight
Total Darkness
DMS-30DR Series
(–) 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.
A
= +25°C and supply voltage = +5V using the single-ended input circuit,
+1.215
“–001”
Min.
Tie to pin 3 to activate
See Technical Note 1
+4.75
100
–40
0.9
–
–
–
–
–
–
–
–
–
–
–
–
–
0
0
Autopolarity ("–" for negative Vin)
3½ digit, 0.56"/14.2mm high LED
–
–
"–1_ _ _ " for negative inputs
"1_ _ _ " for positive inputs
0.75 ounces (21 grams)
2.5 reading per second
+1.225
+5.00
+150
Typ.
±200
±200
1000
“000”
±0.2
±20
Polycarbonate
±2
86
±1
±1
±2
±2
1
–
–
–
–
–
3
S U N L I G H T R E A D A B L E , A U T O - D I M M I N G L E D D I S P L A Y M E T E R S
S U N L I G H T R E A D A B L E , A U T O - D I M M I N G L E D D I S P L A Y M E T E R S
+1.235
+5.25
+250
Max.
“001”
±250
±0.4
+60
+75
±2
±3
±3
±3
±3
95
–
–
–
–
–
–
–
5
Volts
Cnts/°C
Counts
Counts
Counts
Counts
Units
Volts
Volts
Volts
Volts
Volts
Volts
MΩ
MΩ
mA
mA
mV
dB
°C
°C
%
TECHNICAL NOTES
DMS-30DR- 1 - R - C
1. External Brightness Adjustment (Pin 2): Pin 2 is internally con-
2. Minimum-Intensity Adjustment Potentiometer: Users can adjust
3. +1.225V REFERENCE OUTPUT (Pin 9): This pin is the output of the
Ordering Information
Accessories:
Input Range:
nected to the high impedance input of an operational amplifier that
amplifies the output of the DMS-30DR’s ambient light sensor (ALS)
circuit. The output of this amplifier varies the voltage that drives the
DMS-30DR’s LED display. Leave pin 2 open for standard auto-dim-
ming operation; in this mode, the ALS circuit will automatically adjust
the DMS-30DR’s LED brightness to compensate for changes in ambi-
ent lighting. As the ambient light striking the ALS increases, the LED
display’s brightness will also increase; a decrease in ambient light will
reduce the display’s brightness.
The ALS circuit’s output signal can be overdriven by applying an
externally generated voltage directly to pin 2. External drivers will see
approximately 600Kohms referenced to 5V RETURN. With pin 2 at
+0.7Vdc or below, the DMS-30DR’s LED display is off, and total cur-
rent drain from a nominal +5V supply is approximately 1mA. The LED
display’s brightness will increase from minimum to maximum as the
voltage applied to pin 2 is varied from +0.8V up to +2.5V, respectively.
To enable continuous maximum display brightness, connect pin 2
directly to pin 1 (+5V SUPPLY); in this configuration the total current
drain for the meter will be approximately 200mA.
the DMS-30DR’s minimum LED brightness to suit their requirements
by adjusting the ¾-turn, rear-mounted intensity adjustment poten-
tiometer. Please note, this potentiometer will have minimal impact
on display brightness in high ambient light environments. See the
Mechanical Specifications section for potentiometer locations.
The intensity adjustment potentiometer is factory preset to its
mid-point position, producing a typical current drain of 7mA. At it’s
minimum and maximum positions, current drain is typically 3mA and
13mA, respectively. As viewed from the rear of the meter, with the
model number label facing up, turning the potentiometer clockwise
increases the display’s intensity.
meter’s precision +1.225V internal reference IC. Pin 9 is referenced
to ANALOG COMMON (pin 10), which in turn sits approximately +2V
above pin 3. Pin 9 should be buffered if it’s used to drive external
loads since sourcing more than 15µA of current can affect both the
A panel-mount DMS-BZL2-C is supplied with each unit.
DMS-EB-C
DMS-EB-RMS-C
DMS-PS1-CM-C
DMS-30-CP
0 = ±200mV
1 = ±2V
2 = ±20V
3 = ±200V
Multi-purpose (gain/offset, 4-20mA, etc.)
For true rms measurements of ac voltages
+5V/1.0A AC/DC power supply module
Panel cutout punch
D I G I T A L P A N E L M E T E R S
LED Color:
R = Red
RoHS Compliant
MPM_DMS-30DR_A01
PATENT PENDING
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