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DCA5-20PC Series
50mV & 100mV Input, LED-Display,
APPLICATIONS
Any recon?guration of J3 must be made prior to connecting the power
supply and shunt to the ammeter.
6. Replacing Analog Panel Meters: DCA5-20PC ammeters can be
used as replacements for analog panel meters that are driven by
50 or 100mV shunts, if a suitable dc voltage is available for powering the
ammeter. In retro?t applications, it is extremely important to determine the
shunt’s electrical con?guration (i.e., high or low side). If any doubt exists as
to the shunt’s location, use only ‘-DC4’ isolated-supply models. Rewiring
must be performed with all power sources de-energized.
DCA5-20PC-X- DC1 -XX
Subminiature DC Ammeters
7. Decimal Point Selection: As shown in the Ordering Information guide, DCA5-
20PC ammeters are multiple input-range devices. For example, with a 50mV
input, DCA5-20PC-1-DC1 models can be con?gured to display “5.00”, “50.0, or
“500” Amps by simply removing or relocating decimal-point-selector jumper J2
(see Figure 7). Decimal points serve as placeholders only; they have no affect
on displayed accuracy or resolution. If jumper J2 is not available, solder gaps
SG1, SG2, or SG3 can be used to select DP1 (“1.XXX”), DP2 (“1X.XX”), or
DP3 (“1XX.X”), respectively.
1
1
J3 J1 J2
J3
J1 J2
1
1
CAL
1
2
1
2
1
2
CAL
2
2
3
3
J3 MUST BE INSTALLED
(FACTORY SETTING) FOR
5-40Vdc SUPPLIES
J1 AND J2 POSITIONS
DEPEND ON INPUT RANGE
1 TB1
2
1 TB2 2
1 TB1
2
1 TB2 2
M1
–IN
+IN
+V
–V
–IN
+IN
+V
–V
SHUNT CAN BE IN
+
–
LOW OR HIGH SIDE
DC SUPPLY #1
8-36Vdc
DISCHARGE
–
12 V
+
BATTERY
50mV SHUNT
+
50mV SHUNT
LOAD
DC SUPPLY
#2
CHARGE
–
SOLAR
PANELS
+
LOAD CURRENT
–
–
LOADS
+
Figure 6. Using "-DC4" Isolated-Power Models to Maintain Isolation
Figure 4. Typical Low-Side Shunt Connections for "-DC1" Models
Measuring a Battery’s Charge/Discharge Current
Between Two Power Supplies
ALL MODELS
J2 CONFIGURATION
1
1
1
2
3
DP2 OFF
DP3 OFF
J3 J1 J2
J3
J1 J2
CAL
1
2
1
2
3
CAL
1
2
1
2
1
2
3
SG3
SG2
1
2
3
DP2 ON
(1X.XX)
SG1
1
2
3
DP3 ON
(1XX.X)
1 TB1
2
1 TB2 2
1 TB1
2
1 TB2 2
M1
J1 CONFIGURATION
1
2
DP1 OFF
–IN
+IN
+V
–V
1
DP1 ON
2
(1.XXX)
50mV SHUNT
LOAD CURRENT
+
DC SUPPLY
8-36Vdc
–
POWER
GROUND
Figure 7. Decimal Point Selection Using J2 and J1
(Applies to All Models)
(0Vdc)
LOAD
Figure 5. High-Side Shunt Connections for "-DC4"
8-36Vdc Isolated-Power Models
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MPM_DCA5-20PC.B09 Page 4 of 6
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相关代理商/技术参数
DCA5-20PC-2-DC1-BL-C
功能描述:数字面板表 1A/10A/100A/1000A Low-Power Blue 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
DCA5-20PC-2-DC1-PGL-C
功能描述:数字面板表 1A/10A/100A/1000A Low-Power Green 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
DCA5-20PC-2-DC1-RL
功能描述:数字面板表 5-40Vdc Non-isolated Low Power Red 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
DCA5-20PC-2-DC1-RL-C
功能描述:数字面板表 5-40Vdc Non-isolated Low Power Red 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
DCA5-20PC-2-DC4-BS
功能描述:数字面板表 8-36Vdc Isolated Super Blue 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
DCA5-20PC-2-DC4-BS-C
功能描述:数字面板表 8-36Vdc Isolated Super Blue 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
DCA5-20PC-2-DC4-GS
功能描述:数字面板表 8-36Vdc Isolated Standard Green 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
DCA5-20PC-2-DC4-GS-C
功能描述:数字面板表 8-36Vdc Isolated Standard Green 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