Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
| Channel Adjustment | 8 levels sound and magnetic, trigger 0-99 |
| Humidity | ≤90%RH |
| Compliance | DL/T 849.2-2019, GB/T 18268.1 |
| Payment Terms | T/T |
| Technology | Acoustic-magnetic synchronization, automatic time-difference calculation |
| Packaging Details | Wooden packaging with foam insert, export-grade |
| Model NO. | XHDD503B |
| Filter Modes | Full 100-1600Hz / Band 200-600Hz / Low 100-300Hz / High 160-1600Hz |
| Sensor | Multi-layer isolated, IP65 |
| Battery | 4 x 18650 lithium, >8h, fast charger |
| Delivery Time | 5-8 work days |
| Sound Output | 16-level gain, 0-112dB, 350Ω impedance |
| Dimensions | 428 x 350 x 230mm |
| Display | 5-inch touch high-brightness LCD |
| Working Temperature | -25°C to +65°C |
| Positioning Accuracy | ≤0.1m |
| Supply Ability | 2000 units per year |
| Weight | 7kg |
| Detection Range | 0.00-99.99ms; 75mV-75V |
| Place of Origin | Xi'an, Shaanxi, China |
| Brand Name | XZH TEST |
| Certification | CE, ISO 9001 |
| Model Number | XHDD503B |
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Product Specification
| Channel Adjustment | 8 levels sound and magnetic, trigger 0-99 | Humidity | ≤90%RH |
| Compliance | DL/T 849.2-2019, GB/T 18268.1 | Payment Terms | T/T |
| Technology | Acoustic-magnetic synchronization, automatic time-difference calculation | Packaging Details | Wooden packaging with foam insert, export-grade |
| Model NO. | XHDD503B | Filter Modes | Full 100-1600Hz / Band 200-600Hz / Low 100-300Hz / High 160-1600Hz |
| Sensor | Multi-layer isolated, IP65 | Battery | 4 x 18650 lithium, >8h, fast charger |
| Delivery Time | 5-8 work days | Sound Output | 16-level gain, 0-112dB, 350Ω impedance |
| Dimensions | 428 x 350 x 230mm | Display | 5-inch touch high-brightness LCD |
| Working Temperature | -25°C to +65°C | Positioning Accuracy | ≤0.1m |
| Supply Ability | 2000 units per year | Weight | 7kg |
| Detection Range | 0.00-99.99ms; 75mV-75V | Place of Origin | Xi'an, Shaanxi, China |
| Brand Name | XZH TEST | Certification | CE, ISO 9001 |
| Model Number | XHDD503B | ||
| High Light | Telecom Coaxial Cable Fault Pinpointer ，Acoustic Magnetic Time Difference Method ，IP65 Sensor 8-Hour Battery | ||
The XHDD503B cable fault pinpointer locates the exact fault point of buried telecom and coaxial cables after a pre-locator has delivered the rough distance. Using acoustic-magnetic synchronization, it detects the discharge sound from the fault through a sensitive ground probe and simultaneously receives the magnetic field pulse; the instrument automatically computes the acoustic-magnetic time difference and shows the waveform on a 5-inch touch LCD. The fault sits where the time difference is smallest and the discharge sound is loudest, typically within 0.1m, even for high-resistance leakage and flashover faults.
| Parameter | Specification |
|---|---|
| Model | XHDD503B |
| Technology | Acoustic-magnetic synchronization (AMS) with automatic time-difference calculation |
| Applicable Faults | Low-resistance, short-circuit, open / disconnection, high-resistance leakage and high-resistance flashover faults (after pre-location) |
| Cable Types | Power cables, street light cables, high-frequency coaxial cables and buried wires of various materials |
| Positioning Accuracy | ≤0.1m |
| Detection Range | 0.00-99.99ms acoustic-magnetic time difference; 75mV-75V signal level |
| Filter Modes | Full pass 100-1600Hz / band pass 200-600Hz / low pass 100-300Hz / high pass 160-1600Hz |
| Sound Channel | Gain 16 levels (0-112dB), headphone impedance 350Ω |
| Sound / Magnetic Adjustment | 8-level gain and 0-99 trigger threshold per channel |
| Display | 5-inch touch high-brightness LCD, sunlight readable |
| Sensor | Multi-layer physically isolated signal sensor, IP65 waterproof |
| Battery | 4 x 18650 lithium cells, more than 8 hours continuous work, fast charger (about 4h full charge) |
| Working Environment | -25°C to +65°C, ≤90%RH |
| Dimensions / Weight | 428 x 350 x 230mm, 7kg |
| Compliance | DL/T 849.2-2019, GB/T 18268.1 |
Discharge sound changes as it travels through different ground cover. Hard coverings such as cement and stone slabs pass high frequencies well; soft soil and sand absorb them, leaving mostly low-frequency energy. The XHDD503B therefore offers four selectable filter modes, and the right choice shortens the pinpointing job significantly:
| Filter Mode | Bandwidth | Best Used When |
|---|---|---|
| Full pass | 100-1600Hz | Widest operating band; hearing every discharge with minimal filtering |
| Low pass | 100-300Hz | Measurement point is still far from the fault, or cover is soft soil / sand |
| High pass | 160-1600Hz | Hard pavement (cement, asphalt) and close to the real fault point; best preserves the crisp high-frequency discharge |
| Band pass | 200-600Hz | Compromise mode; convenient when measuring acoustic-magnetic time difference |
Two-pass search method: In the first pass, set a low trigger threshold, high gain and high volume, walk the probe along the cable every 1-2m and monitor at least two discharge cycles per point, noting where sound, waveform and time difference peak. In the second pass, come back with a higher threshold, lower gain and lower volume, and mark the point where the sound is loudest and the acoustic-magnetic time difference is smallest - the overlap is the fault point.
Company Details
Business Type:
Manufacturer
Year Established:
2013
Total Annual:
1000000-5000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Xi'an Xu&Hui Electromechanical Technology Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd. Has found in 2013, located in Xi'an, China. which is a highly experienced team dedicated to developing electrical... Xi'an Xu&Hui Electromechanical Technology Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd. Has found in 2013, located in Xi'an, China. which is a highly experienced team dedicated to developing electrical...
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