Safety Tester
Impulse/Surge Tester

Coils are used in a wide range of applications e.g. transformer, motor, generator, ignition coil for cars and motorcycles, relay, electromagnet, filter and various inductors, nearly all the electronic and electrical products have to use coils. However, coils do not have a complete automatic manufacturing process like standard electronic components, and the existing enameled wires are neither fault-free during production nor ensure 100% quality guarantee. 7700 is a 2-channel 5KV impulse winding tester that provides the comparison of waveform functions e.g. Area under curve ratio, Area size ratio, Voltage time difference, and you can use the cursor to select desired comparison range to cover all the waveform differences created by electrical properties then detect a faulty component. This model offers various harmonics mode and accommodate all kinds of coils, and become the best tester that you are able to find on the market to certify coil quality.

  • Lowe power pulses test function
  • Low power non-destructive test analysis
  • Automatic Level Control Function (ALC) 
  • Waveform learning comparison to achieve rapid test speed
  • 8channels test (7720)
  • Multiple winding test function
  • Interchangeable between Chinese and English operational interfaces
  • Provide statistic and print functions

Measurement Data

Channel 2
Impulse Voltage 200V ~ 5000V


Measurement time  50mS


Power Supply 98 ~ 132Vac or 192 ~ 264Vac
Display 320*240 dot-matrix display
Interface RS-232, Print Port, Remote Control
Flash Memory 200 sets
Operation Auto、Manual
Environment Temperature : 10 to 40    Humidity : 20 ~ 90%
Dimension (W*H*D) 435x133x455 mm
Weight   8 Kg

Measurement Items


Total Area

Area size comparison

Waveform comparison




Include Inverters, Power Inductors, Transformers, Motors, Wave Filters, Capacitors and Wires

No relevant audio and video files

Standard Accessories

  • Power Cord
  • User Manual
  • HV Test Cable
  • D-Sub footswitch

Optional Accessories

  • Impulse Link Software
  • RS-232cable
  • Remote Cable