Portable Cable Fault Pinpointer for Customized Traditional Acoustic Testing

Q: What is acoustic-magnetic synchronization and why is it important?

Acoustic-Magnetic Synchronization (AMS) measures both the sound wave (acoustic) and electromagnetic pulse (magnetic) generated during HV discharge at the fault point. Since sound travels slower than the electromagnetic wave, the time difference between the two signals confirms you are directly above the fault. This dual-channel verification eliminates false positives from ambient noise.

Q: What is the pinpointing accuracy for excavation?

The XHDD503C achieves 0.1m (10cm) pinpointing accuracy under normal soil conditions. This means the excavation zone can be limited to approximately 30-50cm diameter, dramatically reducing digging time and surface restoration costs compared to trial trenching over several meters.

Q: How do you use the pinpointer after TDR pre-location?

After the TDR provides the fault distance (e.g., 317m), use a cable route tracer to mark the cable path above ground. Walk the pinpointer along this path near the TDR-indicated distance. As you approach the fault, the acoustic signal becomes louder and the magnetic time-difference reading decreases. The strongest acoustic signal combined with the minimum time difference marks the exact fault location.

Q: Can the XHDD503C work with different types of HV generators?

Yes. The XHDD503C is compatible with any high-voltage surge generator that produces periodic discharge pulses. It works with both integrated systems (e.g., XHHV535-4TSB) and traditional test transformer + capacitor configurations. The pinpointer detects the acoustic and magnetic signals generated by the HV discharge regardless of the source equipment.

Q: What affects pinpointing depth and how can I maximize it?

Pinpointing depth depends on HV discharge energy at the fault point, soil composition (sand attenuates more than clay), and background noise levels. To maximize depth: use the highest safe discharge voltage, ensure the fault point is fully broken down (low-resistance channel), and conduct pinpointing during quieter periods (early morning or night) in high-noise urban areas.

Q: What warranty and support is provided?

12-month warranty against manufacturing defects with lifetime technical support. Package includes pinpointer unit, headphones, ground sensor, carrying case, charger, and user manual. CE and ISO certified. Extended warranty and on-site training available.