The XHDD503C is a professional digital cable fault pinpointer adopting acoustic-magnetic synchronization technology. It detects electronic flashover from an impact discharge generator via a specialized probe, achieving precise fault positioning through auditory and visual analysis within rough measurement ranges while collecting acoustic-magnetic signal time differences. This model delivers the core BNR and touch LCD features of the flagship series at a value-focused price point — ideal for teams that need professional digital performance without paying for features they won't use.
Suitable for low-resistance, short-circuit, open-circuit, and disconnection faults of power cables, high-frequency coaxial cables, street light cables, and buried wires across various materials, cross-sections and media, as well as high-resistance leakage and flashover faults.
![]()
Value Proposition
Accuracy: <0.2m | Display: 5-inch Touch LCD | Noise Reduction: BNR | Protection: IP65 | Battery: 8+ hours | Price Level: ○○
| Parameter | Specification |
|---|---|
| Filter: All-pass | 100Hz ~ 1600Hz |
| Filter: Low-pass | 100Hz ~ 300Hz |
| Filter: High-pass | 160Hz ~ 1600Hz |
| Filter: Band-pass | 200Hz ~ 600Hz |
| Maximum Signal Gain | ≥112dB |
| Output Impedance | 350Ω |
| Acoustic-Magnetic Positioning Accuracy | <0.2m |
| Path Identification Accuracy | <0.5m |
| Display | 5-inch high-brightness touch LCD |
| Noise Reduction | BNR (Background Noise Reduction) |
| Sensor Protection | IP65 Waterproof |
| Power Supply | 4 x 18650 standard lithium batteries |
| Standby Time | > 8 hours |
| Operating Temperature | -25 ~ 65°C |
| Relative Humidity | ≤90% |
The acoustic-magnetic synchronization method determines fault points by comparing the time difference between electromagnetic and acoustic signals. When high-voltage discharge occurs at the fault point, the electromagnetic signal propagates near-instantaneously while sound travels at a much slower speed. By detecting this time difference as the sensor moves along the cable path, the instrument identifies the exact fault location at the point with the smallest time difference value. BNR technology effectively filters out ambient noise, ensuring reliable detection even in challenging field environments.
|
nstrument composition list and diagram |
|||||
|
name |
quantity |
graphics |
name |
quantity |
graphics |
|
Cable fault locator |
1 |
|
Probe (Including connecting rod, probe , three claws ) |
1
|
|
|
7 core signal line |
1 |
|
|||
|
charger |
1 |
|
|||
|
Headphones |
1 |
|
Multifunctional flower wrench |
1 |
|
| Component | Quantity |
|---|---|
| Cable Fault Pinpointer (Main Unit) | 1 |
| Probe with Sensor and Connecting Rod | 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.