• Specialized for identifying outer sleeve failures in cables
• Provides rough measurement capabilities for fault location
• Essential equipment for cable maintenance and troubleshooting
• Designed for professional use in industrial applications
• Adjustable output voltage;
•  Adjustable impulse frequency;
•  Overcurrent protection;
• No blind zone in the testing range;
• Signal frequency adjustment;
• Zero-position protection.

1. Power Socket: AC 220V power supply for the instrument;

2. Fuse Holder: Fuse holder for the AC 220V power supply system;

3. Ammeter: Output current indicator (mA);

4. Voltmeter: High-voltage output voltage indicator (kV);

5. High-Voltage Indicator Light: This light illuminates when there is high-voltage output; pressing this button turns it off when there is no high-voltage output;

6. Power Switch: "Position 1" turns on the AC 220V power supply; "Position 0" turns off the system power;

7. Voltage Adjustment: After starting the equipment, first turn this knob counterclockwise to the end until the high-voltage indicator light illuminates. Then, adjust clockwise to increase the output high voltage, and counterclockwise to decrease it;

8. Zero Adjustment: Rotate the zero adjustment knob until the galvanometer reads zero;

9. Balance Adjustment: Adjust the balance knob until the galvanometer shows a noticeable deflection and reads zero. (If the pointer deflects to the left, rotate clockwise; if it deflects to the right, rotate counterclockwise). Observe and record the reading P1;

10. Adjust the amplification factor: Rotating counterclockwise decreases the amplification factor, rotating clockwise increases the amplification factor;

11. Galvanometer: The electrical balance zero point is adjustable;