TDR Cable Fault Pre-Locator Portable with Printer 30km Range 5.7-inch LCD XHGG501B

The XHGG501B TDR Cable Fault Pre-Locator is a portable, self-contained instrument designed for rapid fault distance measurement on medium and low voltage underground power cables. Covering short-circuit, open-circuit, and low-to-medium resistance faults across different cable cross-sections, materials, and dielectric media, it is purpose-built for KV substations, civil power supply systems, and utility field maintenance — where portability, instant reporting, and reliable performance under wide temperature extremes matter most.

Its defining field advantage is the integrated micro printer: capture a test waveform, press print, and hand a hard-copy report to the site supervisor immediately — no PC, no external device, no delay. Combined with single-chip push-button control for outstanding anti-interference performance and dual power (built-in 24V/7Ah battery + AC 220V mains), the XHGG501B is the go-to instrument for crews who need to diagnose, document, and move on.

• Built-in Micro Printer: Print test waveforms and diagnostic reports on-site, on-demand. Hand documentation directly to clients, supervisors, or attach to work orders — no external computer required.
• Dual Power, 6-Hour Battery: Built-in 24V/7Ah DC power supply delivers 6 hours of continuous field operation. When AC mains is available, plug in 220V and operate while simultaneously charging the internal battery.
• 15m–30km Effective Range: Covers the sweet spot for medium and low voltage distribution cable networks. Measurement error complies with DL/T849.1-2004 industry standard.
• Dual Test Modes: Low-voltage pulse method (100Vpp, 0.1μs / 2μs selectable widths) for low-resistance and open-circuit faults. High-voltage flashover method for high-resistance leakage and flashover fault capture.
• 100MHz Sampling, 0.5m Resolution: Automatic continuous sampling captures every discharge waveform without omission. Sufficient resolution for accurate pre-location before fine pinpointing.
• 5.7-inch Industrial LCD: Over 160° wide viewing angle with stable operation across -25℃ to +65℃ — from freezing winter substations to summer desert cable trenches.
• SCM Single-Chip Control: Push-button operation with integrated anti-interference design. The 12-function keypad is intuitive and reliable, even with gloved hands in field conditions.
• RS232 PC Communication: Export stored waveforms and test data to a computer for archival analysis, comparative diagnostics, and formal engineering report generation.

Each XHGG501B ships complete with test leads, AC power adapter, micro printer paper, RS232 communication cable, and a rugged transport case — ready for immediate deployment.