The instrument adopts microcomputer central processing unit and application-specific integrated circuit. It is characterized by high receiving sensitivity, small static drift, strong anti-interference ability, stable operation and high accuracy. The instrument is more solid and durable, thus reducing the repair rate of the instrument. Because the instrument uses a large capacity battery power supply, the instrument has the advantage of longer waiting time. The A-frame and its electronic circuit board adopt an integrated design, which is superior to the split design of the peer, and avoids the trouble of connecting. It also reduces the incidence of instrument failure.

Can quickly test the cable sheath damage caused by the ground fault. After upgrading in recent years, it is easier to use and more accurate to test. One-click operation, better than the tedious operation of similar products. Just operate once, you can master. Equivalent to a tool type instrument, can be used without training.
The instrument consists of the following three parts:
Transmitter: Automatically tests the impedance of the cable to the ground and sends a test signal to the cable under test.
Routing receiver: receives the signal near the cable, detects the cable routing and buried depth.
Insulated receiver (A-frame) : Detects ground insulation faults in the cable.

Technical index
1. Detection distance < 5Km
2. Detection depth ≤ 2m
3. The routing error is less than 20cm
4. Positioning error < 10cm
5. The distance from the inductive fault point is less than 10m
6. The positioning range is ≤5MΩ