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ETCR 7300 Manual

Large caliber three phase power tester
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Summary of Contents for ETCR 7300

  • Page 3: Table Of Contents

    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...

  • Page 4: Warning

    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.

  • Page 5: Ⅰ.introduction

    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.

  • Page 6: Ⅱ. Model

    Ⅱ. Model Model Measurement Range Resolution Note ETCR AC0.00mA-1200A 0.01mA Can measure leakage 7300 current, low power AC 0.5W-720KW 0.01W Can measure big current, AC 0.0A-2000A 0.1A ETCR high power. Can’t 7300A AC 0.1K-1200KW measure leakage current Note: Other function is the same.
  • Page 7 wires) Measured Wire Measured wire at approximately the geometric center Position of the clamp 200 sets, “FULL” symbol indicate the memory is full Data Storage With RS232 interface, download data to computer for RS232 Interface analysis and management Communication RS232 communication wire, 1.8m Wire Frequency 50Hz ,60Hz automatic identification...

  • Page 8: Ⅴ. Measurement Accuracy

    Ⅴ. Measurement Accuracy 1．Base Conditions and Working Conditions Base Working Influence Quantity Model Note Condition Condition 7300 Ambient Temp 23℃±1℃ -10℃-40℃ ---- 7300A 7300 ＜80% Ambient Humidity 40%-60% ---- 7300A β 7300 Signal Waveform sine wave sine wave 7300A =0.01...

  • Page 9: 2．Ac Voltage U

    2．AC Voltage U Accuracy Resolution Measurement Range 7300 7300A 7300 7300A 0.00V-9.99V 0.01V ±(1.5%+5dgt) 10.0V-99.9V 0.1V 100V-600V 3．AC Current I Measurement Accuracy Resolution Range 7300 7300A 7300 7300A ±(1.5%+5dgt) 0.00mA-9.99mA ---- 0.01mA ---- ±(1.5%+5dgt) 10.0mA-99.9mA ---- 0.1mA ---- ±(1.5%+5dgt) ±(2.0%+5dgt) 100mA-999mA 0.1A...

  • Page 10: 6．Apparent Power S: Va=( V×A)

    ±(3%+5dgt) ±(3%+5dgt) 100KW-719KW ±(4%+5dgt) 720KW-1200KW ---- ---- 6．Apparent Power S: VA=( V×A) Measurement Accuracy Resolution Range 7300 7300A 7300 7300A ±(3%+5dgt) 0.50VA-9.99VA ---- 0.01VA ---- ±(3%+5dgt) 10.0VA-99.9VA ---- 0.1VA ---- ±(3%+5dgt) ±(3%+5dgt) 0.10KVA-9.99KVA 0.01KVA 0.01KVA ±(3%+5dgt) ±(3%+5dgt) 10.0KVA-99.9KVA 0.1KVA 0.1KVA ±(3%+5dgt)

  • Page 11: 10．Power Energy W

    10．Power Energy W Accuracy Resolution Measurement Range 7300 7300A 7300 7300A ±(3%+5dgt) ±(4%+5dgt) 0.0000KWh-9.9999KWh 0.0001KWh ±(3%+5dgt) ±(4%+5dgt) 10.000KWh-99.999KWh 0.001KWh ±(3%+5dgt) ±(4%+5dgt) 100.00KWh-999.99KWh 0.01KWh ±(3%+5dgt) ±(4%+5dgt) 1000.0KWh-9999.9KWh 0.1KWh ±(3%+5dgt) ±(4%+5dgt) 10000KWh-72000KWh 1KWh Ⅵ. Instrument Structure 1. Clamp(80mm×80mm) * /△ key: Open/Close the backlight, increase the page number by one, switch MAX/MIN measurement states.
  • Page 12 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.

  • Page 13: Ⅶ. Method Of Operation

    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.

  • Page 14: 6．Data Access/ Exit

    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.
  • Page 15 (Table-1) Measurement Input（+） Input（-） Quantity first Yellow Black Voltage of the φ1 key phase interface interface second Green Black Voltage of the φ2 key phase interface interface third Black Voltage of the φ3 key Red pen phase interface interface (a) Press MODE key to switch the mode to voltage/current/power factor measurement state.
  • Page 16 (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.
  • Page 17 (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 △...
  • Page 18 (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”...
  • Page 19 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.
  • Page 20 (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.
  • Page 21 (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 （...
  • Page 22 (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.
  • Page 23 (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”...
  • Page 24 (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”...

  • Page 25: Ⅶ. Battery Replacement

    Clamp live wire and null line together to measure AC leakage current of single phase. (Note: 2 wires) Clamp earth wire to measure grounding line leakage current of electric equipment. (Note: single wire) Clamp four wires or three wires of there phase to measure the total leakage current.
  • Page 28 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: info@etcr.cc Website: www.etcr.cc...

This manual is also suitable for:

7300a

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