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| 型号： | DMU-30DCV-2-DR-C |
| 厂商： | Murata Power Solutions Inc |
| 文件页数： | 1/3页 |
| 文件大小： | 0K |
| 描述： | VOLT METER LED 20DCV 0.01V RED |
| 产品目录绘图： | Digital Panel Meter |
| 3D 型号： | DMU-30ACV Series.pdf DMU-30ACV Series.sldprt DMU-30ACV Series.stp DMU-30ACV Series.igs |
| 标准包装： | 12 |
| 系列： | DMU-30DCV |
| 类型： | 伏特表 |
| 测量范围： | 0 ~ 19.99VDC |
| 显示器样式： | 红色字符，黑色背景 |
| 显示器类型： | LED |
| 显示器位数： | 3.5 |
| 显示器位数 - 高度： | 0.560"（14.22mm） |
| 背光： | 无 |
| 安装类型： | 面板安装 |
| 端子： | 端接块 |
| 电源电压： | 85 ~ 264VAC |
| 产品目录页面： | 2856 (CN2011-ZH PDF) |
| 其它名称： | 811-1943 |
www.murata-ps.com
FEATURES
?
? Measure and accurately display dc voltages in harsh
environments
?
? Four input ranges: ±200mVdc, ±2Vdc, ±20Vdc, and
±200Vdc
?
? Daylight-readable LED display with automatic
brightness adjustment
?
? Moisture & impact resistant package offers
NEMA-4/IP65 protection
?
? Operates from universal 85-264Vac mains, or
110-300Vdc supplies
?
? Input circuit fully isolated from ac power supply
DMU-30DCV Series
Ruggedized DC Voltmeters with Daylight Readable
Auto-Dimming LED Displays
Murata Power Solutions’ DATEL branded DMU-30DCV series of daylight-readable dc
voltmeters measure and display dc signals as low as ±200mV and as high as ±200V. Their
large 0.56” (14.2mm) high super-bright red LED-display is readable in full sunlight. An
auto-dimming circuit automatically adjusts the display brightness for all viewing conditions.
DMU-30DCV series dc voltmeters are packaged in a rugged, one-piece polycarbonate
plastic housing that features an integrated bezel and gasket assembly. In a typical instal-
lation, the housing is secured to a panel with six metallic threaded inserts, allowing the
unit to meet NEMA-4 / IP65 requirements for moisture and impact resistance in outdoor
applications.
DMU-30DCV series dc voltmeters are available in a choice of four input ranges:
±200mVdc (with 0.1mV resolution); ±2Vdc (0.001V resolution); ±20Vdc (0.01V resolution);
and ±200Vdc (0.1V resolution). The dc signal under measurement is electrically isolated
from the unit’s operating power source.
DMU-30DCV series’ miniature size and rugged package are perfect for industrial and
high-reliability instrumentation, alternative power generators, and any other application
which requires daylight readability and precise monitoring of dc voltages in harsh indoor /
outdoor environments. Simply connect the input signal and an 85-264Vac source of operat-
ing power to the two rear-mounted terminal blocks and the unit is fully operational.
TECHNICAL NOTES
IMPORTANT! To ensure safe and reliable operation, DMU-30DCV dc voltmeters must
be installed and serviced by quali?ed technical personnel. Contact Murata / DATEL if
there is any doubt regarding installation and/or operation.
1. Measurement Type: All DMU-30DCV series dc voltmeters achieve their excellent
performance by employing a precision integrating analog-to-digital converter, metal ?lm
resistor dividers, and a high-stability voltage reference IC. The LED display is updated
approximately 2.5 to 3 times per second. However, while some input ?ltering is provided,
noisy signals may cause the displayed reading to vary by a few counts.
CAL
BRIGHTNESS
ADJUST
2. Wiring: All ac supply (TB1) and input signal (TB2) wiring must be adequately rated for
the voltages and currents they will carry, and must comply with any code or application-
mandated requirements pertaining to the user’s speci?c installation.
3. Power Supply Polarity, Fusing, Wiring and Grounding: The power supply inputs (TB1-1 and
TB1-2) on DMU-30DCV voltmeters are not polarity sensitive, that is, they have no “AC LO”
TB1
1
2
1
2
TB2
or “AC HI” designations. These units do not include or require a connection to earth/chas-
sis ground. Refer to Figure 1 for a typical wiring diagram.
Wires speci?ed in the Functional Speci?cations section must be used for making connec-
REAR VIEW
tions to DMU-30DCV series voltmeters. All power-supply and load wiring must be rated
for the supply voltages and currents they will conduct and must comply with any code or
85-264Vac
Power Source
Input Signal
application-mandated requirements pertaining to the user’s speci?c installation.
Figure 1. DMU-30DCV wiring diagram
For full details go to
DMU-30DCV voltmeters are not internally fused. Terminal block TB1 is to be used only
for powering the power meter’s internal circuitry; it must not be used to supply power
to external loads. The supply wires feeding these power meters must be fused with a
0.5A/250V time delay/time lag fuse, in accordance with applicable regulatory codes.
Wire insulation must be stripped to within ±10% of the stated dimensions, and wires
should be inserted into TB1 such that their insulation is not pinched by the screw terminal.
www.murata-ps.com/rohs
www.murata-ps.com/support
MPM_DMU_30DCV.A09 Page 1 of 3
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