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www.victorruoshui.co.kr

 

이  자료는  저작권법에  따라  보호받는  저작물이므로  무단배포  및  무단복제를  금하며,  내용의  전부  또는 
일부를  이용하려면,  반드시  한국  VictorRuoshui  社  의  서면동의를  받아야  합니다.

 

1.  Introduction   

Flexible Coil Large Current Clamp Meter 

is designed and manufactured for field testing of AC 

large  current.  Widely  used  in  electric  power,  communications,  meteorology,  railway,  oil  field, 
construction,  measurement,  scientific  research  and  teaching  units,  industrial  and  mining 
enterprises  and  other  fields.  Especially  suitable  for  the  flat  cable  dense  place,  current  test  of 
transformer  grounding  core  ,  thick  wire  and  cable,  relay  protection,  silicon  controlled  rectifier, 
frequency  conversion  speed  regulation,  semiconductor  switch,  power  electronic  conversion 
equipment, arc welding and other industrial environment with serious signal distortion. 

Flexible current clamp sensor

, Rogowski Coil, adopts advanced Rogowski Coil technology, 

which  is  a  loop  coil  uniformly  wound  on  non-ferromagnetic  materials,  with  no  hysteresis  effect, 
almost zero phase error, no magnetic saturation, high linearity and strong anti-interference ability. 
The  output  signal  is  the  differential  of  the  current  with  respect  to  time.  By  integrating  the  output 
voltage  signal,  the  input  current  can  be  truly  restored.  The  measured  current  ranges  from 
milliamperes up to ten thousands of amperes. Flexible coil without any exposed metal conductor, 
non-contact measurement, safe and reliable. Small size, light weight, soft and flexible, suitable for 
narrow  environment  and  flat  cable  dense  places.  High  measurement  accuracy,  strong  reliability, 
wide response frequency band, the user can customize the coil length according to demand. 

The meter has the functions of peak hold, data hold and data storage etc., convenient to use, 

which is an essential tool for electrical safety inspection 

 

2. 

 

Electrical Symbol

 

 

Extremely dangerous! The operator must strictly follow the safety rules, otherwise there 
would be danger of electric shock, causing personal injury or injury accident. 

 

Dangerous

The operator must strictly follow the safety rules, otherwise there would be 

danger of electric shock, causing personal injury or injury accident.

 

 

Warning

Operators  must  strictly  follow  safety  rules  ,  otherwise  personal  injury  or 

equipment damage may occur

 

 

Double insulation 

 

AC 

 

DC 

 

3.  Technical Specifications 

Function 

AC large current 

 Power Supply 

 Zn-Mn dry battery 6F22    9V  

 Test Method 

Flexible CT: The output signal is the differential of current with respect to time. By 

integrating the output voltage signal, the input current can be truly restored. 

 Coil Diameter 

φ

200mm 

 Range 

AC 0.00A

9999A 

 Resolution  

AC 10mA 

 Accuracy  

±2%rdg±3dgt (the wire is at the center of the flexible coil, 23 

± 2 

Summary of Contents for VR-690

Page 1: ...www victorruoshui co kr VictorRuoshui Flexible Coil Clamp Large Current Meter VR 690 USER S MANUAL...

Page 2: ...or test wires Do not place and store the meter in high temperature and humidity or dewy places and under direct sunlight for a long time The meter and flexible clamp must be maintained regularly keep...

Page 3: ...en thousands of amperes Flexible coil without any exposed metal conductor non contact measurement safe and reliable Small size light weight soft and flexible suitable for narrow environment and flat c...

Page 4: ...ng and closing mouth will increase by one times or more Sampling Rate 2 times second Data Storage 99units flash display FULL symbol indicate storage full Peak Hold Peak value capture and hold function...

Page 5: ...VictorRuoshui 4 Meter Structure 4 1 Flexible Coil 4 2 Lock catch Turn back and forth according arrow to lock or open the coil 4 3 POWER key 4 4 LCD 4 5 HOLD Key 4 6 Meter front cover 4 7 Meter back c...

Page 6: ...k catch according to the OPEN direction in the above meter structure diagram unscrew the flexible coil lock catch clamp the measured wire with flexible coil clamp and then rotate the lock catch as to...

Page 7: ...ing and return to measuring mode 5 4 2 Press HOLD POWER keys to enter into data access mode and display Unit 1 storage data automatically and then press HOLD key again to turn the page and access stor...

Page 8: ...ase replace the battery 8 2 Press POWER key to shut down the meter and confirm the meter is in off state and then open the battery cover please attention batter model and then replace with qualified n...

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