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MEWOI7900 Flexible Coil Large Current Clamp Meter

MEWOI7900 Flexible Coil Large Current Clamp Meter

2023-07-25 16:05:52  

Flexible Coil Large Current Clamp Meter

  • Main Features : Measurement of AC current. 1.Model No.: MEWOI79002.Range: AC 0.00A~9999A3. Data Storage: 99 groups4.Line Voltage: below 600V5.Coil Diameter: 200mm 6.power supply : Zinc manganese dry battery 6F22 9v
  • Serial No. :

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MEWOI7900 Flexible High Current Clamp Meter is carefully designed and manufactured for field testing of AC large current. Widely used in electric power, communications, meteorology, railways, oil fields, construction, measurement, scientific research and teaching units, industrial and mining enterprises and other fields. It is especially suitable for places with dense wiring, transformer core current testing against the wall, thick wire cable testing, relay protection, thyristor rectification, frequency conversion speed regulation, semiconductor switches, power electronic conversion equipment, arc welding, etc., where the signal is seriously distorted. Current testing in industrial environments.

        The flexible current clamp, namely Rogowski Coil (Rockowski Coil), adopts advanced Rockwell Coil (or Rogowski Coil) technology, which is a circular coil wound evenly on non-ferromagnetic material, without hysteresis effect and almost zero phase Error, no magnetic saturation phenomenon, high linearity, 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 range can range from milliamps to tens of thousands of amperes. The coil part of the flexible current clamp does not have any exposed metal conductors, non-contact measurement, safe and fast; it is small in size, light in weight, beautiful in appearance, soft and flexible, suitable for narrow environments and places with dense wiring; high measurement accuracy, strong reliability, The response frequency is wide, and users can customize the coil length according to their needs. The meter also has the functions of peak hold, data hold, data storage, etc. It is easy to use and is an essential tool for electrician safety testing.

Technical parameter

1. Range and accuracy

Measurement functionRangeprecision
Current AC 0.00A~9999A
±2% rdg ±3dgt

Note: The wire is in the center of the flexible coil, 23°C±2°C

2. Other parameters

Function  AC high current
power supply  Zinc-manganese dry battery 6F22 9V
test method

  Flexible CT: The output signal is the differential of current versus time. By integrating the output voltage signal, the

  Can truly restore the input current.

Coil inner diameter  Inner diameter Φ200mm
resolution  AC 10mA
coil length  Length 628mm
Coil Thickness  Φ7.5mm (very suitable for narrow environments and places with dense wiring, etc.)
Measured current frequency  50Hz/60Hz (automatic identification)
Meter size  Width, height and thickness 190mm×370mm×40mm
LCD size  35mm×21.5mm; display area: 32mm×15mm
back light  With backlight, easy to use in dark field
quality  200g (including battery);
Electric field interference  No hysteresis effect, strong anti-interference ability
position error

  The wire to be tested should be located in the center of the flexible coil as much as possible, not close to the opening and closing.

  The trial error is approximately doubled or more.

sampling rate  2 times/second
data storage  99 groups, flashing "FULL" symbol means the storage is full
peak hold  Peak capture and hold function, press and hold POWER during the test to display the peak " 图片关键词" symbol display
data retention  Data hold function: "DH" symbol display
line voltage  Line test below AC600V
overflow display  Over-range overflow function: "OL" symbol display
battery voltage  When the battery voltage drops to about 7.2V, the low battery voltage symbol will be displayed to remind you to replace the battery.
rated current  About 8mA
Working temperature and humidity  -10℃~40℃; below 80%rh
storage temperature and humidity  -10℃~60℃; below 70%rh
Insulation resistance  100MΩ or more, 1000V
Suitable for safety regulations

  IEC1010-1, IEC1010-2-032, pollution degree 2, CAT VI (1000V) IEC6132 6

  (EMC standard)

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