Underground Cable Fault Pinpointer XHDD503
The XHDD503 Cable Fault Pinpointer uses vibration pickup and electromagnetic induction principles to precisely determine underground cable fault locations. With the aid of a high-voltage pulse generator, flashover discharge at the fault point generates vibration waves, sound waves, and electromagnetic waves. These physical phenomena are picked up by a specialized probe, amplified and processed by the instrument, and displayed for the operator's auditory and visual judgment to complete precise fault location directly above the cable.
Suitable for low-resistance, short-circuit, open-circuit, and disconnection faults of power cables, high-frequency coaxial cables, street light cables, and buried wires made of various materials with different cross-sections and media. Complies with DL/T 849.2-2019 standards for cable fault detectors.
Key Performance Advantages
Magnification: 500,000x | Detection Depth: >10m | Battery Life: 20+ hours | Quiescent Current: <10mA
1.Synchronously receives vibration waves, sound waves and electromagnetic waves generated during fault point discharge.
2.Separately designed and independently powered acoustic and magnetic channels for superior anti-interference capability.
3.500,000x super magnification with >10m detection depth for deep buried cable faults.
4.Analog microammeter design provides signal strength and trend at a glance.
5.Adjustable zero level adapts to various strong and weak signal field environments.
6.Ultra-low power design with <10mA quiescent current ensures 20+ hours of continuous field operation.
7.Multi-layer physical isolation sensor with IP65 waterproof protection.
| Parameter |
Specification |
| Magnification |
500,000 times |
| Positioning Accuracy |
<0.1m (acoustic-magnetic) |
| Output Impedance |
350Ω |
| Detection Depth |
>10 meters |
| Quiescent Current |
<10mA |
| Continuous Operation |
>20 hours |
| Working Power Supply |
4 × 3.7V 3200mAh lithium batteries |
| Ambient Temperature |
-25 ~ 65℃; Humidity: ≤90% |
| Main Unit Dimensions |
190 (L) × 75 (W) × 135 (H) mm |
| Main Unit Weight |
0.81 kg |
| Probe Dimensions |
85 (D) × 100 (H) mm |
| Probe Weight |
1.4 kg |
| Overall Dimensions (Packed) |
428L × 350W × 230H mm |
| Overall Weight |
7 kg |
The acoustic-magnetic synchronization method is a highly accurate and unique fault location technique. Its principle is based on traditional acoustic location, enhanced with electromagnetic signal detection and application.
When a high-voltage pulse acts on the faulty cable, flashover discharge occurs at the fault point, generating vibration waves, sound waves, electromagnetic waves, and other physical phenomena. The instrument simultaneously detects these signals through its dual-channel (acoustic + magnetic) design. By comparing the time difference between the electromagnetic signal (near-instantaneous propagation) and the acoustic signal, the precise distance to the fault point is calculated. The operator moves the probe to find the point with the smallest time difference, which indicates the exact fault location directly below.
The independently powered acoustic and magnetic channels greatly enhance anti-interference capability, making this instrument effective even in electrically noisy field environments where traditional single-channel acoustic detectors struggle.
| Component |
Quantity |
| Cable Fault Pinpointer (Main Unit) |
1 |
| Probe (including connecting rod and sensor) |
1 |
| 7-Core Signal Cable |
1 |
| Headphones |
1 |
| Charger |
1 |
After-Sales Service: 12-month free warranty for product quality issues, lifetime maintenance and technical support.
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