DMS-30LCD 查看數據表（PDF） - DATEL Data Acquisition products
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DMS-30LCD Datasheet PDF : 6 Pages
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Performance/Functional Specifications
Typical at TA = +25°C and supply voltage = +5V (using the single-ended input circuit)
or +9V (using the differential input circuit), unless otherwise noted.
Analog Inputs
Min. Typ. Max. Units
Full Scale Input Range:
DMS-30LCD-0
–
±200
–
mV
DMS-30LCD-1
–
±2
–
Volts
DMS-30LCD-2
–
±20
–
Volts
DMS-30LCD-3
–
±200
–
Volts
Input Impedence:
DMS-30LCD-0, -1
100 1000
–
M7
DMS-30LCD-2, -3
0.8
1
–
M7
Overvoltage Protection ~
–
–
±250 Volts
DMS-30LCD-0, -1
–
–
±100 Volts
DMS-30LCD-2, -3
–
–
±250 Volts
Common Mode Voltage Range
–
–
±2
Volts
CMRR (dc to 60Hz)
–
86
–
dB
Control Inputs
Decimal Pt. Placement (Pins 4-6):
Functionality
Logic Compatibility
Tie to pin 3 to activate
TTL (on 5V-powered models)
Display Test (Pin 2)
Tie to pin 1 to activate
Backlight (Pin 2)
Tie to pin 3 to turn on backlight
Performance
Sampling Rate
2.5 reading per second
Accuracy (1 minute warm-up):
DMS-30LCD-0 (Vin = +0.19V)
–
±1
±2 Counts
DMS-30LCD-1 (Vin = +1.9V)
–
±1
±2 Counts
DMS-30LCD-2 (Vin = +19V)
–
±2
±3 Counts
DMS-30LCD-3 (Vin = +190V)
–
±2
±3 Counts
Zero Reading (Vin = 0 Volts)
“–001” “000” “001”
Temperature Drift (0 = +60°C)
–
±0.2 ±0.4 Cnts/°C
+1.23V Reference Out (Pin 9)
+1.20 +1.23 +1.25 Volts
Power Supply Requirements (5V Models)
Supply Voltage
+4.75 +5.00 +5.25 Volts
Supply Current:
Standard Models
– 800 1200 μA
Backlit Models
– 45
60
mA
Power Supply Requirements (9V Models)
Supply Voltage
+7.5 +9.00 +14.0 Volts
Supply Current:
Standard Models
– 350 600
μA
Backlit Models
– 45
60
mA
Display
Display Type and Size
3½ digit, 0.4"/10.2mm high LCD
Polarity Indication
Autopolarity ("–" for negative Vin)
Overrange Indication
"–1_ _ _ " for negative inputs
"1_ _ _ " for positive inputs
www.murata-ps.com
DMS-30LCD Series
3½ Digit, LCD Display Digital Panel Voltmeters
Physical/Environmental
Operating Temperature
Storage Temperature
Humidity (non-condensing)
Case Material
Weight
0
–
+60
°C
–20
–
+75
°C
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.
Listed spec applies to 5V-powered models only. For 9V-powered models, both
(–) INPUT LO (pin 12) and (+) INPUT HIGH (pin 11) must always be at least
1.5V above –BATTERY (pin 3) and at least 1.5V below +BATTERY (pin 1).
See Technical Notes.
Ordering Information
DMS-30LCD - 1 - 5 - C
Input Range:
0 = ±200mV
1 = ±2V
2 = ±20V
3 = ±200V
Power Source:
5 = +5V
9 = +9V
Add -C for RoHS
Leave blank for standard
models.
Add B for backlit models.
Accessories:
DMS-30-CP
DMS-BZL1-C
DMS-BZL2-C
RN-DMS
Panel cutout punch
DMS-30 bezel assembly
DMS-30 bezel assembly with sealing gasket
Gain/offset potentiometer kit for DMS-EB,
DMS-EB-AC/DC and DMS-EB-DC/DC
Add-On Application Boards:
DMS-EB-C
Multi-purpose (gain/offset, 4-20mA, etc.)
DMS-EB-HTB-C
High-accuracy temperature probe sensing for
±200mV models
DMS-EB-DC/DC-C
Provides isolated +5V power
DMS-EB-TCJ-C
J-type thermocouple inputs for ±2V models
DMS-EB-TCK-C
K-type thermocouple inputs for ±2V models
DMS-EB-RMS-C
For true rms measurements of ac voltages
DMS-EB-AC/DC-C
For ac line-powered applications
A panel-mount retaining clip is supplied with each model.
TECHNICAL NOTES
1. +1.23V REFERENCE OUTPUT (Pin 9): This pin is the output of the
meter’s precision +1.23V internal reference, and it is referenced to
ANALOG COMMON (pin 10) which sits at a potential of approximately
+2V. This output should be buffered if used to drive external loads
since sourcing more than 15μA from pin 9 can affect both the initial
accuracy and temperature drift of the meter.
2. ANALOG COMMON (Pin 10): This pin is connected to an internal,
low-noise, “relative” ground. It is used in certain differential and “float-
ing” measurements as described in the Applications section of this
data sheet and Ap Note 3 of the DATEL Panel Meter Catalog. Pin 10
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MPM_DMS30LCD.D01 Page 2 of 6
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