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GM.700 Surge Wave Fault Pin-pointer
Introduction to the GM.700:

  • The GM.700 power cable fault pin-pointer is designed with a microammeter display, featuring electrical level adjustment, frequency adjustment, and volume adjustment knobs.

  • Magnetic field strength detection: By observing the swing of the pointer on the microammeter, you can see the magnetic field strength during the flashover discharge at the fault point.

  • Electrical level adjustment: Rotate the electrical level knob to adjust the reference of the magnetic field strength. During path detection, adjusting the receiving frequency helps identify the path signal more easily.

  • Frequency adjustment: Adjusting the frequency knob during fault location can effectively avoid radio signal interference.

  • Volume control: Adjust the volume during cable fault location and path finding to hear a clearer and more appropriate sound signal.

The GM.700
Technical Specifications

  • Model: TDR.700

  • Working Modes: Turn off, Fixed Point, Path

  • Fixed Point: Used for precise location of cable faults

  • Path Mode: Works as a receiver when used with a path transmitter

  • Magnification: 500,000 times

  • Positioning Accuracy: ±0.2m

  • Output Impedance: 350Ω

  • Power Supply: 2× standard 9V batteries

  • Quiescent Current: <10mA

  • Battery Life: 20 hours continuous operation

  • Working Conditions:

  • Ambient Temperature: -20 to 50°C

  • Relative Humidity: <90%

Key Features

  • Accurately locates the fault point using vibration waves, sound waves, and electromagnetic waves generated by flashover discharge.

  • Separate acoustic and magnetic channels with independent power supply for stronger anti-interference capability.

  • Super powerful magnification of 500,000 times, with a detection depth of over 10 meters.

  • Ultra-low power consumption design (<10mA), allowing continuous operation for more than 20 hours.

  • Zero electrical level design, adjustable for various strong and weak signal environments.

  • Compact, lightweight, and easy to carry.

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