Page 1
Page 2
Page 3
CONTENT
Warning ....................................................................................................1
Ⅰ.Introduction.........................................................................................2
Ⅱ. Model .................................................................................................3
Ⅲ. Electrical Symbols ............................................................................3
Ⅳ. Technical Specification ....................................................................3
Ⅴ. Measurement Accuracy ...................................................................5
1．Base Conditions and Working Conditions ..................................5
2．AC Voltage U ..............................................................................6
3．AC Current I ...............................................................................6
4．Frequency F ................................................................................6
5．Active Power P: W=( V×A×COSФ) ...........................................6
6．Apparent Power S: VA=( V×A) ..................................................7
7．Reactive Power Q: VAR=( V×A×sinФ) ......................................7
8．Power Factor PF: PF=W/ VA ......................................................7
9．Phase Angle .................................................................................7
10．Power Energy W .......................................................................8
Ⅵ. Instrument Structure ........................................................................8
Ⅶ. Method of Operation ......................................................................10
1．Switch On/Off ...........................................................................10
2．Choose measurement mode ......................................................10
3．Max and Min measurement .......................................................10
4．Backlight Control ......................................................................10
5．Data Hold/Storage .....................................................................10
6．Data Access/ Exit ...................................................................... 11
8．Delete Data ................................................................................ 11
9．Measurement Instruction ........................................................... 11
Ⅶ. Battery Replacement .....................................................................22
Ⅷ. Accessories .....................................................................................22
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Warning
Thank you for purchasing our ETCR7300 Series Large Caliber Three Phase
Power Tester, in order to better use of this product, be sure to:
----To read this user manual carefully.
----Comply strictly with safety rules and precautions set out in this manual.
u Pay special attention to safety under any circumstances while using the
instrument.
u Take note of the label text and symbols on the panel and back of the
instrument.
u Keep the clamp clean and maintain regularly.
u Please don’t connect the tester with computer via RS232 during voltage
measurement.
u Please don’t place and store the instrument at the place with high
temperature, humidity, moisture condensation and straight sunlight for a
long time.
u Replace battery in time when the battery voltage is low.
u Remove or replace the battery if you expect not to use the instrument for a
long time.
u Take note of the polarity when replace the battery.
u The operation, demolition, calibration and maintenance of the instrument
must be carried out by qualified personnel authorized to do so.
u The meter should be stopped from being used immediately and sealed if
danger is brought up in case of continued use; only a competent body can
be authorized to deal with it.
u “ ” in the manual is the safety warning sign, the contents of this manual
must be followed for safe operation.
u “ ” and other safety signs, the contents of this manual must be followed
for safe operation.
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Ⅰ.Introduction
ETCR7300 Series Large Caliber Three Phase Power Tester is well
designed and manufactured for measuring three phase AC voltage, current,
leakage current, phase between current and voltage, phase between phase
voltage, frequency, power energy, phase sequence, active power, reactive
power, apparent power, power. It is a multifunctional, digital, intelligent tester.
Its large caliber 80mm×80mm can clamp electric cable of 80mm diameter, or
96mm×4mm flat cable and steel earth wires. It has all the functions of Large
Caliber Leakage Clamp Meter and Micro Power Clamp Meter. Besides, it also
has this functions such as distinguish transformer wiring group, inductive and
capacitive circuits, test second circuit and bus differential protection systems,
read the phase relationship between CTs of the differential protection, check
the meter wiring right, repair lines and equipment, etc. Provide operators with
a safe, accurate and convenient tester.
ETCR7300 Series Large Caliber Three Phase Power Tester’s clamp
core is made of special alloy, adopt the latest magnetic shielding techniques,
can almost shield the influence from external magnetic field, to ensure the
high precision, high stability and high reliability of perennial uninterrupted
measurement. The meter can store 200 sets of data, with RS232 interface,
upload stored data to the computer through the system software,
implementing online real-time monitoring, historical inquires, dynamic display.
With the function of historical data read, preserve, print, and backlight, data
hold, etc. It is a necessary tool for electrical safety testing.
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Ⅱ. Model
Model Measurement Range Resolution
ETCR
7300
ETCR
7300A
Note: Other function is the same.
AC0.00mA-1200A
AC 0.5W-720KW
AC 0.0A-2000A 0.1A
AC 0.1K-1200KW
0.01mA
0.01W
1W
Can measure leakage
Can measure big current,
measure leakage current
Note
current, low power
high power. Can’t
Ⅲ. Electrical Symbols
Extremely dangerous! The operator must strictly abide by the safety
rules; otherwise there is risk of electric shock, resulting in bodily
injury or fatalities.
Dangerous! The operator must strictly abide by safety rules;
otherwise there is risk of electric shock, resulting in bodily injury or
fatalities.
Warning! Safety rules must be strictly abided by, otherwise personal
injury or equipment damage may be caused.
Alternate Current（AC）
Direct Current（DC）
Double Insulation
Ⅳ. Technical Specification
Measure three phase AC voltage, leakage current,
current, active power, reactive power, apparent
Function
Power
Test Mode Clamp CT, integral mode
Clamp Size
-3-
power, power, phase between current and voltage,
phase between phase voltage, frequency, power
energy, phase sequence
6V DC(LR6×4 alkaline dry batteries, continuously
working for 12 hours)
80mm×80mm(can clamp electric cable of 80mm
diameter, or 96mm×4mm flat cable and steel earth
Page 7
wires)
*
Measured Wire
Position
Data Storage 200 sets, “FULL” symbol indicate the memory is full
RS232 Interface
Communication
Wire
Frequency
Gear Shift Automatic shift
Sample Rate About 2 times/second
Line Voltage Below AC 600V line measurement
Display Mode LCD: 128dots×64dots; Display area: 43mm×29mm
Meter Size Length 275mm × Width 145mm × Height 40mm
Backlight Controlled by “
Data Hold “HOLD” symbol appears
Overflow “OL” symbol appears
Automatic
Shutdown
Voltage
Detection
Weight 1kg(with batteries and accessories)
Working
Current
Working
Temperature
and Humidity
Storage
Temperature
and Humidity
Insulation
strength
Safety
Specifications
Measured wire at approximately the geometric center
of the clamp
With RS232 interface, download data to computer for
analysis and management
RS232 communication wire, 1.8m
50Hz ,60Hz automatic identification
”key
Automatically shutdown about 15 minutes after power
on to reduce battery consumption
Low battery symbol “ " appears to remind the
replacement of battery when the battery voltage drops
below 5.2V.
50mA with enabled backlight; 25mA with disabled
backlight
-10℃-40℃; 80%rh
-10℃-60℃; below 70%rh
AC 3700V/rms(between core and shell)
IEC1010-1, IEC1010-2-032, 2 class of pollution, CAT
Ⅲ(600V)
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Ⅴ. Measurement Accuracy
1．Base Conditions and Working Conditions
Influence Quantity Model
Ambient Temp
Ambient Humidity
Signal Waveform
Signal Frequency
Current Amplitude
in Power/Power
Energy/Phase/Phase
Sequence Test
Current Amplitude
in Power/Power
Energy/Phase/Phase
Sequence Test
Voltage Amplitude in
Power/Power
Energy/Phase/Phase
Sequence Test
Current Amplitude
in Power Factor Test
Current Amplitude
in Power Factor Test
Voltage Amplitude in
Power Factor Test
External Electric
Magnetic Field
Measured Wire
Position
7300
7300A
7300
7300A
7300
7300A
7300
7300A
7300 5A±0.1A 50mA-1200A
7300A
7300
7300A
7300 5A±0.1A 50mA-1200A
7300A
7300
7300A
7300
7300A
7300
7300A
Base
Condition
23℃±1℃ -10℃-40℃ ----
40%-60% ＜80% ----
sine wave sine wave
50HZ±1HZ 45HZ-65HZ ----
50A±1A 10A-2000A ----
50V±1V 10V-600V ----
50A±1A 10A-2000A
100V±20V 10V-600V ----
To be avoided
Measured wire at approximately the
geometric center of the clamp
Working
Condition
Note
β
=0.01
----
Power
factor:
0.3-1
Power
factor:
0.3-1
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2．AC Voltage U
Measurement Range
0.00V-9.99V
10.0V-99.9V 0.1V
100V-600V 1V
Accuracy Resolution
7300 7300A 7300 7300A
0.01V
±(1.5%+5dgt)
3．AC Current I
Measurement
Range
0.00mA-9.99mA ±(1.5%+5dgt)
10.0mA-99.9mA ±(1.5%+5dgt)
100mA-999mA ±(1.5%+5dgt) ±(2.0%+5dgt)
1.00A-9.99A ±(1.5%+5dgt) ±(2.0%+5dgt) 0.01A 0.1A
10.0A-99.9A ±(1.5%+5dgt) ±(2.0%+5dgt)
100A-1199A ±(2.0%+5dgt) ±(2.0%+5dgt)
1200A-2000A ---- ±(2.5%+5dgt)
Accuracy Resolution
7300 7300A 7300 7300A
---- 0.01mA
---- 0.1mA ---1mA 0.1A
0.1A 0.1A
1A 1A
---- 1A
----
4．Frequency F
Measurement
Range
Accuracy Resolution
7300 7300A 7300 7300A
25Hz-100Hz ±(0.5%+5dgt) 0.1Hz
5．Active Power P: W=( V×A×COSФ)
Measurement
Range
0.50W-9.99W ±(3%+5dgt) ---- 0.01W ----
10.0W-99.9W ±(3%+5dgt) ---- 0.1W ----
0.10KW-9.99KW
10.0KW-99.9KW
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±(3%+5dgt) ±(3%+5dgt) 0.01KW 0.01KW
±(3%+5dgt) ±(3%+5dgt) 0.1KW 0.1KW
Accuracy Resolution
7300 7300A 7300 7300A
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100KW-719KW ±(3%+5dgt) ±(3%+5dgt) 1KW 1KW
720KW-1200KW
---- ±(4%+5dgt) ---- 1KW
6．Apparent Power S: VA=( V×A)
Measurement
Range
0.50VA-9.99VA ±(3%+5dgt)
10.0VA-99.9VA ±(3%+5dgt)
0.10KVA-9.99KVA ±(3%+5dgt) ±(3%+5dgt) 0.01KVA 0.01KVA
10.0KVA-99.9KVA ±(3%+5dgt) ±(3%+5dgt) 0.1KVA
100KVA-720KVA ±(3%+5dgt) ±(3%+5dgt) 1KVA 1KVA
720KVA-1200KVA ---- ±(4%+5dgt)
Accuracy Resolution
7300 7300A 7300 7300A
---- 0.01VA
---- 0.1VA ----
---- 1KVA
----
0.1KVA
7．Reactive Power Q: VAR=( V×A×sinФ)
Measurement
Range
0.50var-9.99var ±(3%+5dgt)
10.0var-99.9var ±(3%+5dgt)
0.10Kvar-9.99Kvar ±(3%+5dgt) ±(3%+5dgt) 0.01Kvar 0.01Kvar
10.0Kvar-99.9Kvar ±(3%+5dgt) ±(3%+5dgt) 0.1Kvar 0.1Kvar
100Kvar-719Kvar ±(3%+5dgt) ±(3%+5dgt)
720Kvar-1200Kvar
Accuracy Resolution
7300 7300A 7300 7300A
---- 0.01var ----
---- 0.1var ----
1Kvar 1Kvar
---- ±(4%+5dgt)
---- 1Kvar
8．Power Factor PF: PF=W/ VA
Measurement Range
0.3-1.0
(Capacitive or Inductive)
Accuracy Resolution
7300 7300A 7300 7300A
±(0.02+5dgt) 0.001
9．Phase Angle
Measurement Range
0.0°-360.0° ±(1.5°+5dgt) 0.1°
Accuracy
7300 7300A 7300 7300A
Resolution
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10．Power Energy W
Measurement Range
0.0000KWh-9.9999KWh ±(3%+5dgt) ±(4%+5dgt) 0.0001KWh
10.000KWh-99.999KWh ±(3%+5dgt) ±(4%+5dgt)
100.00KWh-999.99KWh ±(3%+5dgt) ±(4%+5dgt)
1000.0KWh-9999.9KWh ±(3%+5dgt) ±(4%+5dgt)
10000KWh-72000KWh ±(3%+5dgt) ±(4%+5dgt)
Accuracy Resolution
7300 7300A 7300 7300A
0.001KWh
0.01KWh
0.1KWh
1KWh
Ⅵ. Instrument Structure
1. Clamp(80mm×80mm)
2. * /△ key: Open/Close the backlight, increase the page number by one,
switch MAX/MIN measurement states.
3. HOLD key: Data hold and store.
4. ◁/∑ key: Left move the cursor, sum up the three phase power.
5. POWER key: Power ON/OFF
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6. MODE/▽ key: Switch the measurement mode (7 kinds of different
modes), decrease the page number by one.
7. LCD display (See the below details)
8. U1 voltage input
9. U2 voltage input
10. RS232 interface, upload data to computer.
11. U3 voltage input
12. Public input of three phase voltage (COM)
13.φ3/CLR key: Choose to measure φ3 phase voltage or power, clear date
storage.
14. Opening lever
15.MEM key: Access/Exit data reading
16.φ2/▷ key: Choose to measure φ2 phase voltage or power, right move
the cursor
17.φ1 key: Choose to measure φ1 phase voltage or power
18. Up and down cover connecting screws
19. Battery cover
20. Battery cover screw
21. Test wires
LCD Display
1. The first row on the LCD: display the measurement value
2. The second row on the LCD: display the measurement value
3. The third row on the LCD: display the measurement value
4. The fourth row on the LCD: display states
5. Low power indicator: display when the batteries don’t have enough power
6. State indicator: “MEM” indicating data store, “HOLD” indicating data hold,
“READ” indicating historical data access.
7. Data group number
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8. “max” indicating the maximum value measurement of active power,
apparent power, voltage, current.
“min” indicating the minimum value measurement of active power,
apparent power, voltage, current.
In the normal measurement state, this symbol doesn’t display.
Ⅶ. Method of Operation
1．Switch On/Off
Press POWER key to switch on, LCD display, in test mode, press
POWER key to switch off. The meter will automatically power off after
booting 15 minutes later (The tester won’t power off automatically in power
energy measurement mode). If LCD display is darker, maybe the battery
voltage is too low, please replace batteries.
2．Choose measurement mode
Press MODE key to switch 7 kinds of different mode: active
power/reactive power/apparent power, voltage/current/power factor, power
energy, phase angle between voltage and current, phase angle between
three phase voltage, frequency, phase sequence. In the mode of active
power/reactive power/apparent power and voltage/current/power factor,
press φ1、 φ2、 φ3 key to switch and display the corresponding power and
voltage.
3．Max and Min measurement
In the mode of active power/reactive power/apparent power
measurement and voltage/current/power factor measurement, long press
△ key or ▽ key for 3 seconds, when “max” or “min” displayed at the right
bottom of the LCD, it is to measure the maximum or minimum value, and
then press △ key or ▽ key for 3 seconds to exit the measurement mode
of max and min, return to normal measurement mode.
4．Backlight Control
After booting, press * key to control the backlight, suitable for dim
places and night, default closed after booting.
5．Data Hold/Storage
In all the modes except phase sequence measurement, press HOLD
key to lock currently displayed value and display “HOLD “symbol. At the
same time, this locked value as a set of data followed by auto-ID and store,
display the group number such as “HOLD：0003”, and then press HOLD
key to cancel the lock, “HD” symbol disappear, then continue to measure.
Loop operation, the meter can store 200 sets of data. If the memory is full,
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display “FULL” symbol. “MEM:0003” displays in test mode means there
have 3 groups stored data.
6．Data Access/ Exit
In test mode, press MEM key to access data inquiry form group “READ：
001”, and display “READ” symbol. It is allowed to rapidly navigate to the
desired page number. Press “ △ ”key to increase the page number by one,
press ”▽” key to decrease the page number by one. Press ” ◁” key to
decrease the page number by ten, when the pages is less then ten, please
change to use the ”▽” key. Press ” ▷” key to increase the page number by
ten, when the left pages is less than ten, please change to use the “ △ ”key.
Press MEM key to exit date inquiry.
7．Data Upload
Connecting the meter and computer with USB-RS232 communication
line attached in package. Start up the meter, run software, choose history
access, then read, save, report, print history data, etc. The more data storage,
take the longer time to read it. Historical data can be saved in Txt text or Excel
format. Please don’t connect the tester with computer via RS232 when the
tester is under the state of voltage measurement, in case result in leakage
current to damage the tester.
8．Delete Data
At the date inquiry mode, press CLR key to access deleting data menu,
then press“◁”or “▷” keys to move the cursor to “YES” or “NO” item. Press
MENU key to confirm deletion or return to the test mode.
9．Measurement Instruction
(1) Single phase AC voltage (U1/U2/U3) measurement:
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(Table-1)
Key Input（+） Input（-）
φ1 key
φ2 key
φ3 key
(a) Press MODE key to switch the mode to voltage/current/power factor
measurement state. (Show as the above LCD display)
(b) Connect wires according to Table-1, press φ1、 φ2、 φ3 key to switch the
phase, and insert the testing pens (Yellow, Green, Red) into “U1/U2/U3”
interface, insert the black pen into “COM” interface.
(c) The first row on the LCD displays the corresponding voltage.
(d) Long press △ key or ▽ key for 3 seconds, when “max” or “min”
displayed at the right bottom of the LCD, it is to measure the maximum or
minimum voltage. And then press △ key or ▽ key for 3 seconds to exit the
measurement mode of max and min, return to normal measurement mode.
(e) When the voltage exceeding 600V, “OL V” symbol will display.
(2) Single phase AC current（I）measurement
(a) Press MODE key to switch the mode to voltage/current/power factor
measurement state. (Show as the above LCD display)
U1
interface
U2
interface
U3
interface
Yellow
pen
Green
pen
Red pen
COM
interface
COM
interface
COM
interface
Black
pen
Black
pen
Black
pen
Measurement
Quantity
Voltage of the first
phase
Voltage of the second
phase
Voltage of the third
phase
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(b) Clamp the to-be-measured wire.
(c) The second row on the LCD displays the current.
(d) Long press △ key or ▽ key for 3 seconds, when “max” or “min”
displayed at the right bottom of the LCD, it is to measure the maximum or
minimum current. And then press △ key or ▽ key for 3 seconds to exit the
measurement mode of max and min, return to normal measurement mode.
(e) When the current exceeding measurement range, “OL A” symbol will
display.
(3) Single phase AC leakage current（I）measurement
(a) Press MODE key to switch the mode to voltage/current/power factor
measurement state. (Show as the above LCD display)
(b) Clamp the live wire and null line of single phase.
(c) The second row on the LCD displays the leakage current.
(d) Long press △ key or ▽ key for 3 seconds, when “max” or “min”
displayed at the right bottom of the LCD, it is to measure the maximum or
minimum current. And then press △ key or ▽ key for 3 seconds to exit the
measurement mode of max and min, return to normal measurement mode.
(e) When the current exceeding measurement range, “OL A” symbol will
display.
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(4) Three phase leakage current（I）measurement
(a) Press MODE key to switch the mode to voltage/current/power factor
measurement state. (Show as the above LCD display)
(b) Clamp three wires or four wires of the three phase together.
(c) The second row on the LCD displays the leakage current.
(d) Long press △ key or ▽ key for 3 seconds, when “max” or “min”
displayed at the right bottom of the LCD, it is to measure the maximum or
minimum current. And then press △ key or ▽ key for 3 seconds to exit the
measurement mode of max and min, return to normal measurement mode.
(e) When the current exceeding measurement range, “OL A” symbol will
display.
(5) Single phase active power (P)/reactive power (Q)/apparent power(S)
measurement
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(a) Press MODE key to switch the mode to active power/reactive
power/apparent power measurement state. (Show as the above LCD
display)
(b) Connect wires according to Table-1, press φ1、 φ2、 φ3 key to switch the
phase, and insert the testing pens (Yellow, Green, Red) into “U1/U2/U3”
interface, insert the black pen into “COM” interface.
(c) Clamp the to-be-measured wire.
(d) The first row on the LCD displays the corresponding active power, while
the second and third row respectively displays the corresponding reactive
power and apparent power.
(e) Long press △ key or ▽ key for 3 seconds, when “max” or “min”
displayed at the right bottom of the LCD, it is to measure the maximum or
minimum values. And then press △ key or ▽ key for 3 seconds to exit the
measurement mode of max and min, return to normal measurement mode.
(f) When the power exceeding measurement range, “OL” symbol will display.
(g) When the measured voltage in the range of 10V-5V, and the measured
current in the range of 50mA-20mA, the measurement error will be doubled.
When the voltage below 5V or the current below 20mA, the tester will display
“0.00W/0.00var/0.00VA” .
(6) Single phase power factor（PF1/PF2/PF3）measurement
(a) Press MODE key to switch the mode to active power/reactive
power/apparent power measurement state. (Show as the above LCD
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display)
(b) Connect wires according to Table-1, press φ1、 φ2、 φ3 key to switch the
phase, and insert the testing pens (Yellow, Green, Red) into “U1/U2/U3”
interface, insert the black pen into “COM” interface.
(c) Clamp the to-be-measured wire.
(d) The third row on the LCD displays the corresponding power factor.
(e) When the measured voltage in the range of 10V-5V, and the measured
current in the range of 50mA-20mA, the measurement error will be doubled.
When the voltage below 5V or the current below 20mA, the tester will display
“PF1:0.000”.
(7) Single phase power energy (W1/W2/W3) measurement
(a) Press MODE key to switch the mode to power energy measurement state.
(Show as the above LCD display)
(b) Connect wires according to Table-1, press φ1、 φ2、 φ3 key to switch the
phase, and insert the testing pens (Yellow, Green, Red) into “U1/U2/U3”
interface, insert the black pen into “COM” interface.
(c) Clamp the to-be-measured wire.
(d) The first row on the LCD displays the corresponding power energy, while
the second row displays the measurement time, with unit of mins (minutes
and seconds) when less than 1 hour, and hmin (hours and minutes) when
more than 1 hour.
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(e) When the power energy exceeding measurement range, “OL” symbol will
display. When measuring power energy, the tester won’t power off
automatically after 15 minutes, it can be used for 100 hours. Press HOLD key
to store the data, meanwhile the measurement is going on until press MODE
key to exit. When press φ1、φ2、φ3 key to switch the phase, the timer and the
power energy value will be cleared, restart to measure again.
(f) When the measured voltage in the range of 10V-5V, and the measured
current in the range of 50mA-20mA, the measurement error will be doubled.
When the voltage below 5V or the current below 20mA, the tester will display
“W1:0.0000KWh”.
(8) Phase angle between voltage（U1/U2/U3）and current measurement
(a) Press MODE key to switch the mode to phase angle between voltage and
current measurement state. (Show as the above LCD display)
(b) Connect wires according to Table-1, press φ1、 φ2、 φ3 key to switch the
phase, and insert the testing pens (Yellow, Green, Red) into “U1/U2/U3”
interface, insert the black pen into “COM” interface.
(c) Clamp the to-be-measured wire.
(d) The LCD displays corresponding phase angle. For example, the phase
angle between U1 and I is U1I:359.8°, the other two phase have not connect
voltage U2, U3, so its phase angle display 0° or 360.0° (0° is same with
360.0°).
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(e) When the measured voltage in the range of 10V-5V, and the measured
current in the range of 50mA-20mA, the measurement error will be doubled.
When the voltage below 5V or the current below 20mA, the tester will display
“U1I:360.0”.
(9) Phase angle between three phase AC voltage （ U1/U2/U3 ）
measurement
(a) Press MODE key to switch the mode to phase angle between voltages
measurement state. (Show as the above LCD display)
(b) Connect wires according to Table-1, press φ1、 φ2、 φ3 key to switch the
phase, and insert the testing pens (Yellow, Green, Red) into “U1/U2/U3”
interface, insert the black pen into “COM” interface.
(c) The LCD displays corresponding phase angle. For example, the phase
angle between U1 and U2 is U1U2:120.0°.
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(d) When the measured voltage in the range of 10V-5V, and the measured
current in the range of 50mA-20mA, the measurement error will be doubled.
When the voltage below 5V or the current below 20mA, the tester will display
“U1I:360.0”.
(10) Frequency of three phase voltage and current (F) measurement
(a) Press MODE key to switch the mode to frequency measurement state.
(Show as the above LCD display)
(b) Connect wires according to Table-1, press φ1、 φ2、 φ3 key to switch the
phase, and insert the testing pens (Yellow, Green, Red) into “U1/U2/U3”
interface, insert the black pen into “COM” interface.
(c) Clamp the to-be-measured wire.
(d) The LCD displays corresponding phase angle. For example, U1:50.0Hz.
(e) When the measured voltage in the range of 10V-5V, and the measured
current in the range of 50mA-20mA, the measurement error will be doubled.
When the voltage below 5V or the current below 20mA, the tester will display
“U1:0.0”.
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(11) Phase sequence of three phase voltage measurement
(a) Press MODE key to switch the mode to phase sequence measurement
state. (Show as the above LCD display)
(b) Connect wires according to Table-1, press φ1、 φ2、 φ3 key to switch the
phase, and insert the testing pens (Yellow, Green, Red) into “U1/U2/U3”
interface, insert the black pen into “COM” interface.
(c) If no default phase, the phase sequence will display. The cursor flashing in
order of U1-U2-U3 means positive phase sequence, and in order of
U3-U2-U1 means negative phase sequence. If there is a default phase or
voltage below 5V, the corresponding cursor won’t display.
(12) Total active power/reactive power/apparent power/power factor
（P/Q/S/PF）of three phase measurement
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(a) Press MODE key to switch the mode to active power/reactive
Dangerous!
Can not be used to test voltage higher than
Make sure
the clamp well
closed
when measuring leakage
Clean the clamp afte
r finishing measurement
, regularly
Be sure to connect test wire
s correctly
when measuring
A
fter measuring voltage
, should first
ly take the
test line
power/apparent power measurement state. (Show as the above LCD
display)
(b) Connect wires according to Table-1, press φ1、 φ2、 φ3 key to switch the
phase, and insert the testing pens (Yellow, Green, Red) into “U1/U2/U3”
interface, insert the black pen into “COM” interface.
(c) Clamp φ1 wire, press φ1 key to switch the mode to φ1 phase power
measurement state, press Σ key to record the power of φ1 phase, “Σ1”
symbol displays at the right bottom of LCD. And then repeat the same steps
to measure the power of φ2 and φ3, the total power will automatically sum up
when “Σ3” displays on the LCD.
(d) The total active power (P)/reactive power (Q)/apparent power (S)/power
factor (PF) displays in two pages on LCD, page turns every 5 seconds.
High voltage, very dangerous！Only qualified personnel
after training could conduct operation on it. The operator
should obey safety regulations; Otherwise there will be the
danger of electric shock resulting in personal injury or
casualty.
600V. Otherwise there will be the danger of electric shock
resulting in personal injury or casualty.
Please don’t measure the current which exceeding the
measurement range, in case damage the tester.
current and current.
Make sure the measured wire at approximately the
geometric center of the clamp.
maintain the meter.
voltage to avoid short circuit.
away from measured wire, and then draw from meter, in
order to avoid shock.
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Clamp live wire and null line together to measure
AC
Clamp four wires
or three wires
of there phase to measure
Clamp main
line to measure total current of that main line.
Warning! Make sure the battery cover is well close
d before
Take note of the battery polarity, otherwise it
may
cause
If the battery power is not enough, please change in time.
Take out the batteries if you expect not to use the m
eter for
leakage current of single phase. (Note: 2 wires)
Clamp earth wire to measure grounding line leakage
current of electric equipment. (Note: single wire)
the total leakage current. ( Note: 4 wires or 3 wires)
(Note: single wire)
Ⅶ. Battery Replacement
measurement, otherwise there will be danger.
damage to the instrument.
a long time.
1．“ ”is displayed when the power voltage is lower than 5.2V, indicating
that the battery should be replaced.
2. Press POWER key, make sure the meter is power off. Loosen the battery
cover screw, open the plate, replace new batteries and cover the plate,
then tighten screw.
3. Press POWER key to check whether the batteries are successfully
replaced, repeat step 2 if it doesn’t work.
Ⅷ. Accessories
Main Unit 1 piece
Meter Box 1 piece
Test Wires 4 pieces (Yellow, Green, Red, Black)
RS232 Data Wires 1 piece
Disk 1 piece
Battery 4 pieces（Alkaline Dry Battery LR6）
User Manual 1 piece
Guarantee Card 1 piece
Certification 1 piece
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Manufactured by
ETCR Electronic Technology Company
Address: F-3F, No.4 Pengshang Zhifu Road, Jiahe, Baiyun
District, Guangzhou, Guangdong, China
Post Code: 510440
Tel: (86-20)62199556 62199553
Fax: (86-20)62199550
E-mail: [email protected]
Website: www.etcr.cc
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