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FEATURES
DMS-20LCD Series
3? Digit, LCD Display Digital Panel Voltmeters
DMS-20LCD Series, 3? Digit, LCD Display, Digital Voltmeters represent the ultimate
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Lowest cost
Lowest power, 2mW
Subminiature size:
1.38" x 0.88" x 0.43"
35mm x 22mm x 11mm
Large (0.37"/9.4mm), enhanced-contrast LCD display
Epoxy-encapsulated, 12-pin DIP
Panel or pc-board mountable
4 differential input voltage ranges
High accuracy, ±1 count (±0.05%)
Single +5V supply or 9V battery
Low-battery annunciator
User-selectable decimal point placement
0 to +60°C temperature range
combination of low price, low power, small size and high performance in digital meters.
Epoxy encapsulated in a subminiature (1.38” x 0.88” x 0.43”), 12-pin DIP package, these
completely self-contained, fully operational meters offer a combination of ruggedness,
long-term reliability and component-like ease-of-use simply not available in any other
meters.
Incorporating a precision reference and a factory-calibrated, autozeroing A/D converter,
DMS-20LCD meters are extremely accurate (±1 count) and are only slightly larger than
their 0.37"/9.4mm, enhanced-contrast, LCD displays. All models incorporate a built-in
bezel and are easily mounted in either panels or pc boards. Both backlit and non-backlit
versions are available.
DMS-20LCD meters have 4 differential input voltage ranges (±200mV, ±2V, ±20V and
±200V) and a user-friendly input structure. Input impedance is a minimum 800k : . CMRR
is typically 86dB with a CMV of ±2V. Non-inverting inputs are overvoltage protected to
±100V (±250V for the ±200V input model).
All DMS-20LCD meters operate from a single +5V supply (drawing 400μA) or a single
+9V supply/battery (drawing 230μA). All models have a low-battery ("B") annunciator and
feature autopolarity changeover and overrange indication.
Also available is an application/evaluation board (DMS-EB2) that plugs directly onto the
back of any DMS-20LCD allowing direct inputs for common applications such as 4-20mA
inputs, zero/gain adjust, decimal point location, and input voltage dividing.
SIMPLIFIED SCHEMATIC DIAGRAM
+5V
+5V SUPPLY/ 1
+BATTERY
2
N.C.
3
DC/DC
CONVERTER
–5V
V+
V–
0.01μF
2
R2
1
R1
909k
12
11
(–) INPUT LO
(+) INPUT HI
≈ +2.0V
5V RETURN/ 3
–BATTERY
0 Vdc
J 1
A/D
CONVERTER
10 ANALOG
COMMON
DP 3
DP 2
DP 1
4
5
6
DATA
+5V
9
8
7
N.C./BACKLIGHT
REFERENCE OUT
REFERENCE IN
4
　
1
2
R2 is not used on ±200mV (-0) models or ±2V (-1) models.
R2 = 100k on ±20V (-2) models and 9.1k on ±200V (-3) models.
Only used on ±200mV (-0) and ±2V (-1) models.
3
4
DC/DC converter is not used on 9V-powered models,
J1 is connected.
Used on backlit models only.
N.C. for non-backlit models.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/dpm
05 Apr 2011
email: sales@murata-ps.com
MPM_DMS20LCD.B08 Page 1 of 6
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相关PDF资料
DMS-20LCD-0-DCM-C VOLTMETER LCD 6.5-18VDC 3.5DIGIT
DMS-20LCD-4/20S-C METER LCD SELF-POWERED 3.5DIG
DMS-20PC-0/5-5BS-C MONITOR CTRL LED 0-5V 3.5DIG BLU
DMS-20PC-0-DCM-B-C DPM LED 4.5-19.99V 3.5DIGIT BLUE
DMS-20PC-1-LM-G-C DPM LED 85-264VAC 3DIGIT GREEN
DMS-20PC-1-PGL-C DPM LED 2V 3.5DIGIT LO-PWR GRN
DMS-20PC-2-LM-C DPM LED 240-310VAC 3DIGIT RED
DMS-20PC-3-DCM-C DPM LED SELF-POWERED 2-11VDC RED
相关代理商/技术参数
DMS-20LCD-0-5-C 功能描述:数字面板表 +-200mV / +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
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DMS-20LCD-0-9 功能描述:数字面板表 +-200mV / +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
DMS20LCD-0-9 制造商:Murata Power Solutions 功能描述:INDICATOR DMS-20LCD
DMS-20LCD-0-9B 功能描述:数字面板表 +-200mV / +9V Backlit Model 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-20LCD-0-9B-C 功能描述:数字面板表 +-200mV / +9V Backlit Model 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-20LCD-0-9-C 功能描述:数字面板表 +-200mV / +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-20LCD-0-DCM 功能描述:数字面板表 +6.50 to 1800Vdc 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