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www.murata-ps.com
FEATURES
DMS-40LCD Series
4? Digit, LCD Display Digital Panel Voltmeters
Offering a unique combination of low cost, scienti?c-grade accuracy (±2 counts),
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Scienti?c-grade accuracy, ±2 counts
Low power, typically 12.5mW
Miniature size:
2.17" x 0.92" x 0.43" (55mm x 23mm x 11mm)
Large (0.4”/10.2mm), enhanced-contrast, LCD display
Backlit displays optional
Epoxy-encapsulated, 12-pin DIP
Panel or pc-board mountable
3 differential, dual, input voltage ranges
Single +5V supply or 9V battery
User-selectable decimal point placement
Low-battery "BAT" annunciator
0 to +50°C temperature range
Low Cost
component-like convenience and outstanding reliability, DMS-40LCD Series 4? Digit DPM’s
provide the ultimate combination of price, precision and convenience. These miniature
(2.17? x 0.92? x 0.43?) digital voltmeters combine an advanced, autozeroing A/D converter,
a precision reference circuit and a large (0.4?/10.2mm high), easy-to-read LCD display in a
single, fully encapsulated, 12-pin DIP package. All models incorporate a built-in bezel and
are easily mounted in either panels or pc boards.
Each DMS-40LCD meter has a dual-range, differential, input con?guration
(±200mV/±2V, ±2V/±20V or ±20V/±200V) and is available with a backlit or non-backlit
display. Input impedance is a minimum 800kΩ, and CMRR is typically 86dB (dc to 60Hz).
CMV is ±2V, and all models are overvoltage protected to ±250V (on their non-inverting
inputs).
All DMS-40LCD meters are fully functional and operate from a single +5V supply (draw-
ing 3.5mA max.) or a single 9V supply/battery (drawing 2.5mA max.). All models feature
autopolarity changeover and overrange indication. A display HOLD function is standard on
all non-backlit models.
Thanks to their rugged epoxy-based encapsulation and their advanced, factory-cal-
ibrated A/D converters, DMS-40LCD meters are able to withstand the harshest environ-
ments and never require adjustment or calibration. Plug-in convenience, long-term stability
and wide operating temperature range (0 to +50°C) make DMS-40LCD meters the right
solution for any high-accuracy DPM requirement.
SIMPLIFIED SCHEMATIC DIAGRAM
+5V
+5V SUPPLY/ 1
+BATTERY
RANGE 2
SELECT
?
DC/DC
CONVERTER
–5V
V+
V–
0.01μF
R2 ?
R1
?
12
11
(–) INPUT LO
(+) INPUT HI
≈ +2.2V
5V RETURN/ 3
A/D
CONVERTER
10 ANALOG
COMMON
–BATTERY
0 Vdc
J1
DP 3
DP 2
4
5
BAT
DATA
1.23V
REF.
9 HOLD/ ?
BACKLIGHT
8
DP 4
DP 1
6
+5V
7 REFERENCE
IN/OUT
For full details go to
www.murata-ps.com/rohs
? R1 = 100k on ±200mV/±2V (-0/1) models and 909k on all other models.
R2 is not used on ±200mV/±2V (-0/1) models.
R2 = 101k on ±2V/±20V (-1/2) models and 9.2k on ±20V/±200V (-2/3) models.
? DC/DC converter is not used on 9V-powered models,
J1 is connected.
? Hold function is not available on backlit models.
www.murata-ps.com/dpm
04/05/11
email: sales@murata-ps.com
MPM_DMS40LCD.C04 Page 1 of 6
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相关代理商/技术参数
DMS-40LCD-0/1-9
功能描述:数字面板表 4.5 Digit Volt Meter +-200mVto+-2V / +9V RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-40LCD-0/1-9B
功能描述:数字面板表 4.5 Digit Volt Meter +-200mVto+-2V / +9V RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-40LCD-0/1-9B-C
功能描述:数字面板表 4.5 Digit Volt Meter +-200mVto+-2V / +9V RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-40LCD-0/1-9-C
功能描述:数字面板表 4.5 Digit Volt Meter +-200mVto+-2V / +9V RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-40LCD-1/2-5
功能描述:数字面板表 4.5 Digit Volt Meter +-2Vto+-20V / +5V RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-40LCD-1/2-5B
功能描述:数字面板表 4.5 Digit Volt Meter +-2Vto+-20V / +5V RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-40LCD-1/2-5B-C
功能描述:数字面板表 4.5 Digit Volt Meter +-2Vto+-20V / +5V RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-40LCD-1/2-5-C
功能描述:数字面板表 4.5 Digit Volt Meter +-2Vto+-20V / +5V RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM