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■ Super-bright LED displays are readable in
direct sunlight!
DMS-30DR Series
Sunlight Readable, 3? Digit Panel Meters
with Auto-Dimming LED Displays
Murata Power Solutions’ new DMS-30DR Series are the ?rst digital panel meters to offer LED
displays that are readable in direct sunlight—no special ?lters or shading devices are required.
Their Autodim circuit automatically adjusts the display’s brightness to suit viewing environments
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Autodim circuitry automatically adjusts
display brightness
Includes external brightness adjustment
Large (0.56"/14.2mm) easy-to-read red
LED display
High reliability alternative to LCD displays
Ideal for automotive, industrial, and marine
applications
Encapsulated package mounts in panels or
pc-boards
Miniature housing: 2.17? x 0.92" x 0.56"
(55mm x 23mm x 14mm)
4 differential input ranges provide ±1 count
accuracy
Single +5V supply; Less than 1-Watt power
consumption
0 to +60°C operating temperature range
ranging from total darkness to full, brilliant sunlight. A user-accessible brightness adjustment pin
enables custom intensity settings or display matching in multiple display applications. Washed
out, hard-to-read digital readouts are a thing of the past!
Until now, users whose instrumentation required daylight visibility had to settle for less
reliable LCD display technology. However, in order to remain legible in low ambient light, LCDs
require complex, power-hungry backlighting circuitry. And, these displays typically suffer from
very narrow viewing angles. In contrast, DMS-30DR Series LED-based displays’ power consump-
tion drops as ambient light decreases, and their viewing angle extends to nearly 180 degrees
vertically and horizontally.
All models operate from a single +5V supply, and draw as little as 7mA when operated in total
darkness—that’s less than 1/10 Watt. At maximum brightness power consumption is typically
less than 200mA (1 Watt). DMS-30DR voltmeters are available in four differential input voltage
ranges: ±200mV, ±2V, ±20V and ±200V. Input impedance is 1,000 megohms for the ±200mV
and ±2V inputs and 1 megohm for the ±20V and ±200V inputs. CMRR for all devices is 86dB,
and inputs are overvoltage protected to ±250V. Each meter incorporates a precision, ultra-stable
voltage reference and is factory calibrated prior to encapsulation.
The small size (2.17" x 0.92" x 0.56") of DMS-30DR meters is achieved by integrating their
display, Autodim display drivers, light sensor, reference circuit, and A/D converter into in a rugged
epoxy-encapsulated assembly. The device’s 12-pin, component-like, DIP package is both vibra-
tion and moisture proof, making them ideal for harsh environments. Each package incorporates a
built-in color ?lter and bezel, and is easily mounted in either panels or pc boards.
+5V SUPPLY
1
+5V
+5V
12
(–) INPUT LO
0.01?F
R2
(1)
EXTERNAL BRIGHTNESS
ADJUSTMENT
2
DC/DC
CONVERTER
–5V
–5V
R1
909k
11
(+) INPUT HI
5V RETURN
3
+5V
–5V
A/D
CONVERTER
10 ANALOG
COMMON
DP 3
4
0 Vdc
DATA
1.225V
REF.
9
+1.225V REFERENCE OUT
1.82k
DP 2
5
LIGHT
SENSOR
+5V
8
REFERENCE OUT
7
6
REFERENCE IN
DP 1
(1) R2 is not used on ±200mV (-0) models or ±2V (-1) models.
　
For full details go to
www.murata-ps.com/rohs
Figure 1. DMS-30DR Simpli?ed Schematic
R2 = 100k on ±20V (-2) models and 9.1k on ±200V (-3) models.
www.murata-ps.com/dpm
03 Aug 2010
email: sales@murata-ps.com
MPM_DMS-30DR.B05 Page 1 of 6
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相关代理商/技术参数
DMS-30DR-2 制造商:DELTA 制造商全称:Delta Electronics, Inc. 功能描述:Daylight Readable, 3 Digit Panel Meters with Auto-Dimming LED Displays
DMS-30DR-2-R-C 功能描述:数字面板表 3.5 Digit LED 20V Daylight Readable 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-30DR-3 制造商:DELTA 制造商全称:Delta Electronics, Inc. 功能描述:Daylight Readable, 3 Digit Panel Meters with Auto-Dimming LED Displays
DMS-30DR-3-R-C 功能描述:数字面板表 3.5 Digit LED 200V Daylight Readable 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-30LCD 制造商:MURATA-PS 制造商全称:Murata Power Solutions Inc. 功能描述:3? Digit, LCD Display Digital Panel Voltmeters
DMS-30LCD-0-5 功能描述:数字面板表 3.5 Digit Volt Meter +-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
DMS-30LCD-0-5B 功能描述:数字面板表 3.5 Digit Volt Meter +-200mV / +5VBacklit 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-30LCD-0-5B-C 功能描述:数字面板表 3.5 Digit Volt Meter +-200mV / +5VBacklit 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