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| 型号： | ACM20-4-AC1-R-F-C |
| 厂商： | Murata Power Solutions Inc |
| 文件页数： | 3/6页 |
| 文件大小： | 0K |
| 描述： | METER AC POWER 100A W/FREQ READ |
| 产品培训模块： | ACM20 Series |
| 产品目录绘图： | Digital Panel Meter |
| 3D 型号： | ACM20 Series.pdf ACM20 Series.sldprt ACM20 Series.stp ACM20 Series.igs |
| 标准包装： | 12 |
| 系列： | ACM20 |
| 类型： | 万用表 |
| 显示器样式： | 红色字符，黑色背景 |
| 显示器类型： | LED |
| 显示器正面尺寸： | 2.10" L x 1.43" W（53.3 x 36.3mm） |
| 显示器位数： | 4 |
| 显示器位数 - 高度： | 0.360"（9.14mm） |
| 背光： | 无 |
| 安装类型： | 面板安装 |
| 端子： | 端接块 |
| 电源电压： | 85 ~ 264VAC |
| 其它名称： | 811-2703 ACM20-4-AC1-R-F-C-ND Q5299772 |
ACM20 Series
Four-Function AC Power Meters
When the continuous auto-cycling mode is initially selected, the unit
will brie?y display ‘Auto On’ before continuous cycling begins. Mo-
mentarily touching the ‘SEL’ button again will cause the unit to brie?y
display ‘Auto OFF’ before it returns to the ?xed VOLTS reading mode.
3. Calibration: Due their digital design, ACM20 power meters cannot be
calibrated in the ?eld. ACM20 power meters are factory-calibrated to
meet their speci?ed accuracies with the supplied L1 current trans-
former. Use of any other current transformer will produce signi?cant
errors for the Amps, Watts, and Power Factor measurements.
Contact Murata Power Solutions if additional information is required
regarding calibration, setup, or any other technical issue pertaining to
ACM20 power meters.
4. Wiring: All power supply wiring must be rated for the voltages and
currents they will carry and must comply with any code or applica-
tion-mandated requirements pertaining to the user’s speci?c installa-
tion.
5. Supply Fusing, and Grounding: Wires speci?ed in the Functional
Speci?cations section must be used for making connections to
ACM20 series power meters. No connection is required for earth/
chassis ground.
ACM20 series power meters 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 dimen-
sions, and wires should be inserted into TB1 such that their insulation
is not pinched by the screw terminal.
6. Current Transformer Polarity: In order to perform accurate Watts
and Power Factor measurements, connections to the two rear power
supply inputs, TB1-A and TB1-B, and built-in current transformer L1
must have the proper polarity. That is, the load current ?owing in the
wire passing through L1's center hole must have the same polarity as
the line voltage connected to TB1-A and TB1-B.
The wiring diagrams in Figures 1-4 ensure that, for a purely resistive
load, current ?owing in current transformer L1’s primary circuit will
have the same polarity as the applied voltage at TB1. If proper polarity
is not followed, the Watts and Power Factor readings will be zero. To
correct a zero Watts reading, simply reverse the direction of the load
wire passing through the hole in L1.
7. Connector Torque Ratings: I t is important to tighten TB1’s, screw-
terminals to their rated torque speci?cation of 3.6 pound-inches
(0.4Nm). Proper tightening will minimize connector losses and ensure
safe, reliable operation.
8. Isolation: Except for the 2-56 thread metallic mounting studs, all of
the ACM20 power meter’s internal components (printed circuit board,
resistor, capacitors, current transformer L1’s secondary leads, etc.)
are at the ac-mains potential connected to TB1. ACM20 power meters
are designed to measure and be powered from one ac power-source
only. Any other connection schemes will introduce signi?cant mea-
surement errors.
TYPICAL WIRING DIAGRAMS
120 V
LOAD
Epoxy encapsulation
Note: If the ACM20 displays zero Watts with
B
TB1
power applied to the load, reverse the direction
of the wire passing through the CT's center hole.
See Technical Note 6 for more information.
Polarity dot on bottom
H
Fuse*
N
A
120 Vac (50/60 Hz)
Figure 1. Wiring diagram for 110/120V single phase systems
*See technical note 5.
www.murata-ps.com/support
MPM_ACM20 Series.B03 Page 3 of 6
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| ACM20-5-AC1-B-C | 功能描述:Multifunction Meter (Current, Voltage, Wattage) LED - Blue Characters Display Panel Mount - Surface 制造商:murata power solutions inc. 系列:ACM20 零件状态:有效 类型:万用表（电流，电压，瓦特） 测量范围:0 ~ 100A 显示类型:LED - 蓝色字符 每行字符数:4 显示字符 - ?高度:0.360"（9.14mm） 输出类型:- 电压 - 电源:85 ~ 264VAC 面板开口尺寸:矩形 - 36.22mm x 22.10mm 安装类型:面板安装 - 表面 端子类型:螺丝端子 侵入防护:- 特性:内置电流互感器（初级） 工作温度:0°C ~ 60°C 重量:0.096 磅（43.54g） 标准包装:12 |
| ACM20-5-AC1-B-F-C | 功能描述:Multifunction Meter (Current, Voltage, Wattage, Frequency) LED - Blue Characters Display Panel Mount - Surface 制造商:murata power solutions inc. 系列:ACM20 零件状态:有效 类型:万用表（电流，电压，瓦特，频率） 测量范围:0 ~ 100A 显示类型:LED - 蓝色字符 每行字符数:4 显示字符 - ?高度:0.360"（9.14mm） 输出类型:- 电压 - 电源:85 ~ 264VAC 面板开口尺寸:矩形 - 36.22mm x 22.10mm 安装类型:面板安装 - 表面 端子类型:螺丝端子 侵入防护:- 特性:内置电流互感器（初级） 工作温度:0°C ~ 60°C 重量:0.096 磅（43.54g） 标准包装:12 |
| ACM20-5-AC1-G-C | 制造商:Murata Power Solutions 功能描述:AC POWR METER-30A, POWR FACTR |
| ACM20-5-AC1-G-F-C | 功能描述:MULTI METER 0-32A LED PANEL MT 制造商:murata power solutions inc. 系列:ACM20 零件状态:在售 类型:万用表（电流，电压，瓦特，频率） 测量范围:0 ~ 32A 显示类型:LED - 绿色字符 每行字符数:4 显示字符 - ?高度:0.360"（9.14mm） 输出类型:- 电压 - 电源:85 ~ 264VAC 面板开口尺寸:矩形 - 36.22mm x 22.10mm 安装类型:面板安装 - 表面 端子类型:螺丝端子 侵入防护:- 特性:内置电流互感器（初级） 工作温度:0°C ~ 60°C 标准包装:12 |
| ACM20-5-AC1-R-C | 功能描述:数字面板表 30A 85-264Vac Supply Power Factor Reading 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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