78-8130-6151-8 Rev G
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and orientation is key to maximize the induced signal in the buried cable or metallic
pipe enough to be detectable by the receiver along each path in the swept area. (Note
that no signal is induced onto a conductor whose path is perpendicular to the Induction
Direction indication.)
•
Place the transmitter in the upright (bottom on ground) position for directional
optimization when aligned with the Induction Direction shown on the label on the
transmitter.
• Tip the transmitter over towards the front, and lay it on it's front surface, for multi-
directional wide area induction. (Note that no signal is induced onto a conductor
whose path is directly under the transmitter).
•
Remove anything plugged into the
Output Jack
[T-6] (this will place unit in Induction
Mode), select highest available frequency (133 kHz) and highest output level.
•
Select the Induction Peak (IndPk) mode and 133 kHz frequency on the receiver. When
in close proximity to the transmitter in induction mode, there is a direct signal from
the induction antenna in the transmitter to the receiver through the air. Induction Peak
mode is a newly added locate mode for use in closer proximity to a transmitter in
Induction mode (<60 ft , 20 m typically). Special (single) Peak would give the highest
sensitivity, but is affected by the air signal more than Induction Peak mode.
E. Two-person Active Induction Mode Sweeps
In two-person active induction mode sweeps, one person holds the transmitter and
the other holds the receiver while walking together in a sweep pattern detecting long
conductors in the ground when crossed by transmitter and receiver positions and
orientation, as shown below:
Transmitter Set-up
•
Remove anything plugged into the
Output Jack
[T-6] (this will place unit in Induction
Mode), select high frequency (133 kHz), or medium frequency (33 kHz), and highest
output power level.
•
Hold the transmitter with the lid facing up and align it with the Induction Direction
arrow label, as shown on the transmitter, with the receiver
Receiver Set-up
•
Set the receiver to the same frequency as the transmitter.
