High-Frequency Spark Tester ASI-20V


Description and purpose:

High-frequency spark tester ASI-20V is designed to test insulated conductors of cables, wires, cords and protective hoses with a 1,6 kHz sinusoidal voltage per pass according to IEC62230: 2006, as in the process of applying insulation and a protective hose over a metal sheath, and during control rewind.

It is recommended to use on high-speed cable lines (at speeds of about 600 m/min and more).

The device can detect both open (visible) through defects (channels, cracks, etc.) and hidden through defects in the insulation.

• Output voltage - sinusoidal 1...20 kV
• Output frequency 1600 Hz


• Smooth test voltage setting
• Indication of the test voltage
• Audible and electronic alarm during breakdown of the insulation of the tested product
• Digital indication of the number of breakdowns


Configuration options:
• ASI-20V
• Electrode ESHU-20 (recommended)
• Mounting rack (equipped with guide rollers, light and sound alarm tower, electrical installation for quick connection)

This configuration it is possible to order both together and separately.



Basic parameters 
Output voltage 1…20 kV
Output voltage stabilization error 3 %
Output frequency

1600 Hz

Output voltage form Sinusoidal
Maximum electrode load 200 pF, 10 MΩ
Maximum cable speed 2000 m/min(with electrode ESHU-20)
Output voltage Digital, with 0.1 kV resolution
Number of breakdowns Digital counter from 0 to 99 units with reset function
Insulation breakdown alarm

Relay output 1 normally open contact + 2 normally closed contacts (2 A, 220 V)

During breakdown of insulation, the output voltage is switched off for a time of 0.1 ... 3 sec (time is regulated by a potentiometer on the side cover) 

Analog output

Analog output 0 ... 10 VDC
Corresponds to the output voltage setting.

Communication interface
RS485 Modbus RTU
Power supply  
Voltage 230 V ± 10 %
Frequency 50 Hz ± 5 %
Power consumption 50 VA
Complementary parameters  
Degree of protection IP20
Ambient temperature 0…+40 °С
Storage temperature -10…+60 °С
Overal dimensions (W х H х D) 255х210х280 mm
Weight 13 kg
Electrode unit ESHU (ordered separately) ESHU-20
Electrode lenght 100 mm
Electrode material Stainless balls 
Max. cable diameter 16 mm
Сover opening mechanism Hinged transparent cover
Overall dimensions in the closed position (W х H х D) 280х143х197 mm
Weight 3 kg


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