ARC Multi-Pulse Cable Fault Pre-Locator 10.1-inch Touch 120km Range 400MHz Sampling XHGG502A

The XHGG502A Cable Fault Pre-Locator is a professional-grade instrument combining three complementary test methodologies — TDR (Time Domain Reflectometry), ICE (Impulse Current), and ARM (Arc Reflection Multi-Pulse) — into a single integrated platform. Built around an industrial 10.1-inch TFT touchscreen computer with embedded system architecture, it delivers stable, reliable fault distance measurement and waveform analysis for all common cable fault types: low-resistance, short-circuit, open-circuit, disconnection, high-resistance leakage, and high-resistance flashover.

What sets the XHGG502A apart is its ARC multi-pulse capability: when paired with a pulse coupler (rated DC 35kV), it simultaneously displays 8 groups of high-voltage and low-voltage waveform comparisons, enabling technicians to visually match fault signatures against reference traces for confident, unambiguous fault distance determination — a capability typically found only in instruments costing significantly more.

• 400MHz Ultra-High-Speed Sampling: Variable sampling from 1MHz to 400MHz delivers 0.07m minimum resolution — over 7* finer than standard 100MHz pre-locators. Capture the finest waveform details for precise fault distance calculation on long cable runs.
• 120km Maximum Test Range: Industry-leading range for power transmission and long-distance telecom cable diagnostics. Fully automatic continuous sampling ensures no transient discharge event is ever missed.
• ARC 8-Group Multi-Pulse Technology: The exclusive Arc Reflection Method simultaneously captures and displays 8 groups of high-voltage/low-voltage comparative waveforms. Automatic distance testing with manual override for expert analysis. Dramatically reduces interpretation time on complex fault signatures.
• 10.1-inch Industrial Touch Display: 1024*600 resolution with 280nit LED backlight — visible in direct outdoor sunlight. Full English menu supporting both touchscreen and coded push-button operation for gloved-hand use in the field.
• 300Vpp Low-Voltage Pulse with 8 Selectable Widths: 0.15μs, 0.30μs, 0.60μs, 1.20μs, 2.4μs, 5.0μs, 7.5μs, and 10μs — precisely match the pulse width to cable length and fault type for optimal reflection clarity.
• DC 35kV Pulse Coupler Compatible: Works with high-energy impulse generators for ARM multi-pulse testing on the toughest high-impedance faults. Built-in coupler protection ensures operator and equipment safety.
• Massive Waveform Storage & Management: Store 8,000+ low-voltage pulse and high-voltage flashover records, plus 250+ multi-pulse waveform records. All files can be named in the field and exported via USB to PC software for archival analysis and report generation.
• Automatic Range & Waveform Analysis: Intelligent auto-ranging sets the optimal test parameters. Built-in waveform analysis automatically calculates and displays fault distance — ideal for less experienced operators or high-volume testing environments.
• Industrial-Grade Reliability: Embedded system with industrial integrated circuits. Built-in large-capacity lithium-ion battery for extended field operation. Compliant with GB/T 18268.1 (industrial EMC), DL/T 849.1-2019 (cable fault flash tester), and JJF1042-2020 (calibration specifications).

• XHGG502A Cable Fault Pre-Locator (10.1-inch host)
• Pulse Coupler (DC 35kV rated)
• Test Lead Set (low-voltage pulse + high-voltage connection)
• AC Power Adapter & Charger
• USB Cable for PC Data Export
• Rugged Transport Case
• User Manual

12-month free warranty against manufacturing defects. Lifetime technical support and maintenance services. CE and ISO certified. Conforms to GB/T 18268.1 industrial EMC requirements, DL/T 849.1-2019 cable fault flash tester standards, and JJF1042-2020 calibration specifications.

Frequently Asked Questions