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Power Meter with Magnetic Shielding (High Reliability)
Power Meter with Magnetic Shielding (High Reliability)

GAOTek Power Meter with Magnetic Shielding (High Reliability)

ID: GT00ZO00ZX
Category:

USD

Overview

This multifunctional Power Meter with Magnetic Shielding is used to measure 3-phase AC voltage, current, leakage current, phase between current and voltage, frequency, power energy, phase sequence and active power. It has all the functions of the Large Caliber Leakage Clamp Meter and Micro Power Clamp Meter. This meter can also distinguish transformer wiring group, test 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. This device provides operators with a safe, accurate and convenient tester.

Key Features

  • Multifunctional, digital, intelligent tester with functions of Large Caliber Leakage Clamp Meter and Micro Power Clamp Meter.
  • Magnetic Shielding: ensures high precision, high stability and high reliability of perennial uninterrupted measurement.
  • Stores 200 sets of data, with RS-232 interface.
  • Online real-time monitoring, dynamic display.
  • Has functions such as historical data read, export, print, and backlight, data hold, etc.
  • Automatic shut-down feature: automatically shuts down about 15 minutes after power on to reduce battery consumption

Technical Specifications

Function Measure three phase AC voltage, leakage current, current, active power, reactive power, apparent power, power, phase between current and voltage, phase between phase voltage, frequency, power energy, phase sequence

 

Power 6 V DC (LR6×4 alkaline dry batteries, continuously working for 12 hours)

 

Test Mode Clamp CT, integral mode

 

Clamp Size 3.14 in × 3.41 in (80 mm × 80 mm) can clamp electric cable of 3.14 in (80 mm) diameter, or 3.77 in ×  0.15 in (96 mm × 4 mm) flat cable and steel earth wires

 

Measured Wire Position Measured wire at approximately the geometric center of the clamp

 

Data Storage 200 sets, “FULL” symbol indicate the memory is full

 

RS232 Interface With RS-232 interface, download data to computer for analysis and management
Communication Wire RS-232 communication wire, 70.86 in (1.8 m)

 

Frequency 50 Hz, 60 Hz automatic identification

 

Gear Shift Automatic shift

 

Sample Rate About 2 times/second

 

Line Voltage Below AC 600 V line measurement

 

Display Mode LCD: 128 dots × 64 dots; Display area: 1.69 in × 1.14 in (43 mm × 29 mm)

 

Meter Size 10.82 in × 5.70 in × 1.57 in (275 mm × 145 mm × 40 mm)

 

Backlight Controlled by “ * ”key

 

Data Hold “HOLD” symbol appears

 

Overflow “OL” symbol appears

 

Automatic Shutdown Automatically shut-down about 15 minutes after power on to reduce battery consumption

 

Voltage Detection Low battery symbol appears to remind the replacement of battery when the battery voltage drops below 5.2 V.

 

Weight 2.20 lbs (1 kg) (with batteries and accessories)

 

 

Working Current 50 mA with enabled backlight; 25 mA with disabled

backlight

Working Temperature and Humidity 14 °F~104 °F (-10 °C-40 °C) ; 80 % RH
Storage Temperature and Humidity 14 °F~140 °F (-10 °C–60 °C) ; below 70 % RH
Insulation strength AC 3700 V/rms(between core and shell)

 

Safety Specifications IEC1010-1, IEC1010-2-032, 2 class of pollution, CAT Ⅲ(600 V)

 

V. Measurement Accuracy

1.Base Conditions and Working Conditions

Influence Quantity Base Condition Working Condition Note
Ambient Temp 73.4 F ± 33.8 F (23 °C ± 1 °C) 14 F – 104 F (-10 °C – 40 °C) —-
Ambient Humidity 40 %-60 % <80 % —-
Signal Waveform sine wave sine wave β=0.01
Signal Frequency 50 HZ ± 1 HZ 45 HZ – 65 HZ —-
Current Amplitude in Power/Power Energy/Phase/Phase Sequence Test 5 A ± 0.1 A 50 mA-1200 A —-
Current Amplitude in Power/Power Energy/Phase/Phase Sequence Test 50 A ± 1 A 10 A – 2000 A —-
Voltage Amplitude in Power/Power Energy/Phase/Phase Sequence Test 50 V ± 1 V 10 V – 600 V —-
Current Amplitude in Power Factor Test 5 A ± 0.1 A 50 mA -1200 A Power factor: 0.3-1
Current Amplitude in Power Factor Test 50 A ± 1 A 10 A – 2000 A Power factor: 0.3-1
Voltage Amplitude in Power Factor Test 100 V ± 20 V 10 V – 600 V —-
External Electric Magnetic Field To be avoided
Measured Wire Position Measured wire at approximately the geometric center of the clamp

2.AC Voltage U

Measurement Range Accuracy Resolution
0.00 V-9.99 V ±(1.5 % + 5 dgt) 0.01 V
10.0 V-99.9 V 0.1 V
100 V-600 V 1 V

3.AC Current I

Measurement Range Accuracy Resolution
0.00 mA-9.99 mA ±(1.5 %+5 dgt) —- 0.01 mA —-
10.0 mA-99.9 mA ±(1.5 %+5 dgt) —- 0.1 mA —-
100 mA-999 mA ±(1.5 %+5 dgt) ±(2.0 %+5 dgt) 1 mA 0.1 A
1.00 A-9.99 A ±(1.5 %+5 dgt) ±(2.0 %+5 dgt) 0.01 A 0.1 A
10.0 A-99.9 A ±(1.5 %+5 dgt) ±(2.0 %+5 dgt) 0.1 A 0.1 A
100 A-1199 A ±(2.0 %+5 dgt) ±(2.0 %+5 dgt) 1 A 1 A
1200 A-2000 A —- ±(2.5 %+5 dgt) —- 1 A

4.Frequency F

Measurement Range Accuracy Resolution
25 Hz-100 Hz ±(0.5 %+5 dgt) 0.1 Hz

5.Active Power P: W= (V×A×COSФ)

Measurement Range Accuracy Resolution
0.50 W-9.99 W ±(3 %+5 dgt) —- 0.01 W —-
10.0 W-99.9 W ±(3 %+5 dgt) —- 0.1 W —-
0.10 KW-9.99 KW ±(3 %+5 dgt) ±(3 %+5 dgt) 0.01 KW 0.01 KW
10.0 KW-99.9 KW ±(3 %+5 dgt) ±(3 %+5 dgt) 0.1 KW 0.1 KW
100 KW-719 KW ±(3 %+5 dgt) ±(3 %+5 dgt) 1 KW 1 KW
720 KW-1200 KW —- ±(4 %+5 dgt) —- 1 KW

6.Apparent Power S: VA= (V×A)

Measurement Range Accuracy Resolution
0.50 VA-9.99VA ±(3 %+5 dgt) —- 0.01 VA —-
10.0 VA-99.9VA ±(3 %+5 dgt) —- 0.1 VA —-
0.10 KVA-9.99 KVA ±(3 %+5 dgt) ±(3 %+5 dgt) 0.01 KVA 0.01 KVA
10.0 KVA-99.9 KVA ±(3 %+5 dgt) ±(3 %+5 dgt) 0.1 KVA 0.1 KVA
100 KVA-720 KVA ±(3 %+5 dgt) ±(3 %+5 dgt) 1 KVA 1 KVA
720 KVA-1200 KVA —- ±(4 %+5 dgt) —- 1 KVA

7.Reactive Power Q: VAR= (V × A × sin Ф)

Measurement Range Accuracy Resolution
0.50 var-9.99 var ±(3 %+5 dgt) —- 0.01 var —-
10.0 var-99.9 var ±(3 %+5 dgt) —- 0.1 var —-
0.10 Kvar-9.99 Kvar ±(3 %+5 dgt) ±(3 %+5 dgt) 0.01 Kvar 0.01 Kvar
10.0 Kvar-99.9 Kvar ±(3 %+5 dgt) ±(3 %+5 dgt) 0.1 Kvar 0.1 Kvar
100 Kvar-719 Kvar ±(3 %+5 dgt) ±(3 %+5 dgt) 1 Kvar 1 Kvar
720Kvar-1200Kvar —- ±(4 %+5 dgt) —- 1 Kvar

8.Power Factor PF: PF=W/ VA

Measurement Range Accuracy Resolution
0.3-1.0         (Capacitive or Inductive) ±(0.02+5 dgt) 0.001

9.Phase Angle

Measurement Range Accuracy Resolution
0.0 °-360.0 ° ±(1.5°+5 dgt) 0.1°

10.Power Energy W

 Measurement Range Accuracy Resolution
0.0000 KWh-9.9999 KWh ±(3 %+5 dgt) ±(4 %+5 dgt) 0.0001 KWh
10.000 KWh-99.999 KWh ±(3 %+5 dgt) ±(4 %+5 dgt) 0.001 KWh
100.00 KWh-999.99 KWh ±(3 %+5 dgt) ±(4 %+5 dgt) 0.01 KWh
1000.0 KWh-9999.9 KWh ±(3 %+5 dgt) ±(4 %+5 dgt) 0.1 KWh
10000 KWh-72000 KWh ±(3 %+5 dgt) ±(4 %+5 dgt) 1 KWh

VI. Instrument Structure

  1. Clamp 3.14 in × 3.41 in (80 mm × 80 mm)
  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
  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. RS-232 interface, upload data to computer.
  11. U3 voltage input
  12. Public input of three phase voltage (COM)
  13. 13.φ3/CLR key: Choose to measure φ3 phase voltage or power, clear date storage.
  14. Opening lever
  15. 15.MEM key: Access/Exit data reading
  16. 16.φ2/▷ key: Choose to measure φ2 phase voltage or power, right move the cursor
  17. 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
  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, display “FULL” symbol. “MEM: 0003” displays in test mode means there have 3 groups  of 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 than 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:

(Table-1)

Key Input(+) Input(-) Measurement Quantity
φ1 key U1 interface Yellow pen COM interface Black pen Voltage of the first phase
φ2 key U2 interface Green pen COM interface Black pen Voltage of the second phase
φ3 key U3 interface Red pen COM interface Black pen Voltage of the third phase

(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)

(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.

(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

(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 50 mA-20 mA, the measurement error will be doubled. When the voltage below 5 V or the current below 20 mA, the tester will display “0.00 W/0.00 var/0.00 VA”.

(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 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 10 V-5 V, and the measured current in the range of 50 mA – 20 mA, the measurement error will be doubled. When the voltage below 5 V or the current below 20 mA, 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 h min (hours and minutes) when more than 1 hour.

(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 10 V-5 V, and the measured current in the range of 50 mA-20 mA, the measurement error will be doubled. When the voltage below 5 V or the current below 20 mA, 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°).

(e) When the measured voltage in the range of 10 V-5 V, and the measured current in the range of 50 mA-20 mA, the measurement error will be doubled. When the voltage below 5 V or the current below 20 mA, 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°.

(d) When the measured voltage in the range of 10 V-5 V, and the measured current in the range of 50 mA-20 mA, the measurement error will be doubled. When the voltage below 5 V or the current below 20 mA, 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 10 V-5 V, and the measured current in the range of 50 mA-20 mA, the measurement error will be doubled. When the voltage below 5 V or the current below 20 mA, the tester will display “U1:0.0”.

(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 5 V, the corresponding cursor won’t display.

(12) Total active power/reactive power/apparent power/power factor (P/Q/S/PF) of three phase measurement

(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 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.

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 piece/ Alkaline Dry Battery LR6)
User Manual 1 piece
Guarantee Card 1 piece
Certification 1 piece

 

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