McLaughlin Vision GX2, Руководство по эксплуатации

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This equipment is the high performance digital measurement equipment to measure the location and the depth of
buried cable / metal pipe from the ground. By adopting the most recent microcomputer technology, the digital
correction of the measurement data realizes stable and high precious measurement.
- Principle measurement method -
When current flows through a buried cable/pipe, an alternating magnetic field is generated around it.
Location, depth, and current value of the buried pipe can be measured using the Receiver at the surface of the ground.
- Feature -
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Adopting the differential coil method allows the Receiver to receive the signal from directly below the Receiver by reducing
noise from surrounding area.
·
Three kinds of the location measurement mode (having error detection protection function)
*Peak & Null mode: The method to detect maximum and minimum sensitivity simultaneously.
*Peak mode: The method to detect maximum sensitivity.
*Null mode: The method to detect minimum sensitivity point being indicated with arrow.
User operation is not needed.
Yaw angle, Depth of buried pipe and Current Measurement are continuously displayed when using all location modes.
·
Two types of the depth measurement modes
*0-5m (16ft) mode: Measurement of depth with high precision is possible in indirect method, at the end of a cable, and jointing
points.
*0-10m (30ft) mode: Stable measurement is possible at deep depths, near guardrail, or fence. Do not use this mode when in
inductive mode.
·
The Receiver can measure commercial frequency (50/ 60 Hz, 100 / 120 Hz) and Radio (from 9k to 33 kHz) without the use of the
Transmitter.
·
The best-suited frequency is automatically selected in radio mode (9k – 33 kHz) with search function .
·
The measured data is stored (maximum 400 data ) with one-touch operation.
The data can be transmitted to a PC as standard function. (PC software and PC cable are option.)
·
Broadcasting of six frequencies （ 512Hz, 640Hz, 853Hz,9.5kHz, 38kHz, 80kHz) as needed for various buried utilities.
·
A Probe as an option can be used to detect non-metallic pipe.
2. Introduction
Signal
Magnetic field
Pipe / Cable
Signal
Magnetic field
Pipe / Cable
*The model figure of the differential coil.
The differential coil method connects two coils. Signal is then
compared inversely between each coil.