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GM.1000 Surge Wave Fault Pin-Pointer

The GM.1000 Surge Wave Fault Pin-Pointer is a professional underground cable fault locator that uses vibration pickup and electromagnetic induction to determine the exact position of cable faults.

When a connected high-voltage pulse generator causes a flashover discharge at the fault point, the GM.1000 detects the resulting vibration, sound, and electromagnetic waves. These signals are captured by a specialized probe, amplified, processed, and displayed for precise analysis.

This instrument allows technicians to determine the fault location both visually and acoustically, ensuring pinpoint accuracy. It is highly effective for low-resistance, short-circuit, open-circuit, disconnection, and high-resistance leakage faults across a wide range of cables, including power cables, coaxial cables, streetlight cables, and buried wires.

Key Features

  • 5-inch high-brightness touch LCD, visible even under direct sunlight

  • Four test modes: standard, enhanced, noise reduction, and customized

  • Four positioning methods: acoustic-magnetic synchronization, pure acoustic, pure magnetic, step voltage

  • Noise reduction: built-in BNR and mute noise reduction functions

  • Filter options: all-pass, low-pass, Qualcomm, and band-pass

  • Step voltage path deviation indication

  • Multi-layer signal isolation sensors for improved accuracy

  • Waterproof (IP65) design for outdoor use

  • Lightweight and ergonomic: compact instrument, easy to handle in the field

  • Long endurance: lithium battery provides over 18 hours of standby time

  • Fast charging system included

Technical Specifications

  • Filter Parameters:

    • All-pass: 100Hz–1600Hz

    • Low pass: 100Hz–300Hz

    • Qualcomm: 160Hz–1600Hz

    • Band-pass: 200Hz–600Hz

  • Channel Gain: 8 levels adjustable

  • Magnetic Channel Gain: 8 levels adjustable

  • Step Voltage Gain: 8 levels adjustable

  • Output Gain: 16 levels (0–112dB)

  • Output Impedance: 350 Ω

  • Positioning Accuracy:

    • Acoustomagnetic: <0.2m

    • Step Voltage: <0.5m

    • Path Identification: <0.5m

  • Display & Control: 5-inch high-brightness touch screen

  • Power Supply: 4 × 18650 lithium batteries

  • Standby Time: >18 hours

  • Dimensions: 428 × 350 × 230 mm

  • Weight: 1.5kg (main instrument, excluding probe)

  • Operating Environment: –25°C to +65°C, ≤90% RH

  • Protection: IP65

Standard Accessories

  • Cable Fault Locator (1×)

  • 7-core Signal Line (1.5 m) (1×)

  • Charger (1×)

  • Headphones (1×)

  • Probe (with connecting rod, probe, three claws) (1×)

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