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MEWOI 7800 User Manual

High accuracy clamp leaker
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MEWOI 7800
HIGH ACCURACY CLAMP LEAKER
USER MANUAL
www.mewoi.com

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Summary of Contents for MEWOI 7800

  • Page 1 MEWOI 7800 HIGH ACCURACY CLAMP LEAKER USER MANUAL www.mewoi.com...

  • Page 3: Table Of Contents

    CONTENT Warning ....................1 I Introduction ................... 3 II Electrical Signs..................4 III Technical Specifications ..............5 IV Structure of the Leaker ..............7 V Operating Method ................8 1.Start-up, Shutdown ................ 8 2.Leaker Measurement ..............8 3. Peak Holding ................11 4.

  • Page 4: Warning

    Warning Thank you for purchasing our company's High Accuracy Clamp Leaker, for better use of this product, please: ——Read carefully the user's manual. ——Follow strictly safety rules and notes listed in this manual.  Under any circumstances, please pay special attention to your safety in the course of using this leaker.
  • Page 5  In case dangers would occur if continue to use a faulty leaker, please stop to use it and seal it for safekeeping immediately; and then, send it for disposal of authorized agency.  Users shall carry out operation based on danger signs “ ”...

  • Page 6: I Introduction

    I Introduction MEWOI7800 High Accuracy Clamp Leaker is specially designed for measurement of AC leakage current; by adopting up-to-date CT technology and digital integration technology, it is a product with relatively small size, large clamp, high accuracy and perfect function compared with similar leakers in the world.

  • Page 7: Electrical Signs

    indication of max, min and average value and indication. There are also functions like saving to documents and printing when connected to PC. It is an essential tool for electrician safety testing. II Electrical Signs Extremely dangerous! Operators shall strictly keep to safety rules;...

  • Page 8: Technical Specifications

    III Technical Specifications Measurement of AC leakage current, AC Function current and on-line measurement Power Zn-Mn dry battery,6F22,9V Φ68mm Size of jaw Test Mode Clip-on CT，integral mode Display Mode Four digits LCD display Width × Height× Thickness： Dimension 175mm×70mm×38mm LCD Dimension 35mm×21.5mm；...
  • Page 9 USB line 1.5m 99units，all used when display Storage FULL Push without release, the meter will HOLD Peak Hold show the peak value during the pushing period indicating the reading is hold Reading Hold indicating the current is out of range Out of Range 5 Minutes after power on, it will power off Auto Power-off...

  • Page 10: Structure Of The Leaker

    CAT Ⅲ(600V) IV Structure of the Leaker 1. Double Input Totpid 2. Upper Cover 3. Totoid Opening Lever 4. HOLD Key 5. POWER key 6. LCD 7. USB Interface 8. Back cover 9. Screw of up/down cover 10. Battery cover 11.

  • Page 11: Operating Method

    V Operating Method 1. Start-up, Shutdown Press key to start up, LCD will begin to display; Press the POWER key again, the leaker will shut down. After starting up for 5 POWER minutes, LCD will flick notes that the leaker will shut down automatically;...
  • Page 12 Conductors (Be attention that clamp heads must be totally closed) Clamp live wire and null line together is to measure leakage current of electrical equipment. (Note: 2 lines) Clamp earth wire is to measure grounding line leakage current of electrical equipment. (Note: single line) Clamp main line is to measure total current of that main line.（Note: single line）...
  • Page 13 Attention! For your safety, when measuring heavy current, after confirmed the completion of correct operating test, please move the leaker away from measured conductor. -10-...

  • Page 14: Peak Holding

    3）Read LCD display data. In case symbol was displayed, it OL mA means that current of measured line is beyond the maximum limit of this leaker; with this case, please shift gear with much higher range limit. In locations with difficulty to read out data, please use the data holding function.

  • Page 15: Function Quick Look Up

    Unit 1 storage data automatically; and then press key again to turn HOLD the page of stored data; will display when there is no data in stored NULL in the memory, press key to exit data access mode. POWER 3） After entering into data access mode, press key for more than 3 HOLD seconds will clean up all stored data;...

  • Page 16: Display Example And Meaning

    Key Pressing Press HOLD Clear Data(at access data mode) for 3s Data access /turn pages Key + HOLD POWER key) HOLD VII Display Example and Meaning 1.---Measured leakage current is 0.25mA. 2.---Low battery, please change. 3.--- Measured leakage current is 0.25mA is held and automatically stored unit ID is NO.03.

  • Page 17: How To Change Battery

    VIII How to Change Battery Warning! It is dangerous to carry out test when the battery cover plate was not on its position. Please pay attention to the polarity of battery to avoid damaging the leaker. Chang the low battery in time If you expect not to use the meter for a long time, please get off the battery to storage.

  • Page 18: Accessories

    IX Accessories Clamp tester 1 pc USB Com cable 1 pc Software 1 disk Battery（6F22 9V） 1 pc User Manual 1 copy Warranty card / Certification 1 copy -15-...
  • Page 20 esting pecialist...

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