RIDGID NaviTrack Scout Manual Del Usuario página 8

5.2 Sounds of the Scout
The sound is related to increasing or decreasing signal strength.
It rises in pitch and volume when signal increases, or down
when signal decreases. As the signal ramps up, it will step in
pitch and volume on the way up only to help push the operator
to the maximum signal strength. If the signal strength drops, the
sound returns to a base tremolo as if it saw no signal.
The Scout has an automatic gain. When the gain moves up or
down a step the sound will reset to the higher or lower intensity.
Adjust the sound volume by pressing the Sound Key.
The volume will move with each press of the sound key or the
up and down arrows can be used to adjust the volume as well.
Press the select key to exit this screen.
Note – Pressing the select key during normal operation will
center the pitch to a medium level.
5.3 Overview - Understanding sondes and the
Scout
Sondes (also called transmitters, beacons or active duct
probes) emit an electro-magnetic field very similar to the mag-
netic field that emanates from the Earth.
In fact, if the Earth were turned on its side, its magnetic field
would look a lot like the field from a sonde.
As a locator, the Scout can measure the shape (angle) of the
field lines from a sonde and identify distinct characteristics of
these lines. Three important characteristics are the two
POLES and the EQUATOR. At the Poles the angle of the sig-
nal is 90 degrees (vertical). At the Equator it is 0 (horizontal).
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Poles are distinct points in space, while the Equator wraps
completely around the sonde. Since these distinct characteris-
tics are constant, they can be used to accurately pinpoint the
location of the sonde.
Poles usually occur where conventional locators would experi-
ence "nulls", the dead spots that occur when the signal pass-
es through their antennas vertically. The difference is that
Scout can "see" the Poles ("nulls") and show you where they
are, even when you're not directly over them, and no mat-
ter how Scout's antennas are aligned with the signal.
This is one reason why locating with Scout is so much easier
than with conventional locators.
The sonde is located at the point where the Equator passes
directly between the two Poles.
5.4 Locating the sonde
The Scout can be used to locate the signal of a sonde (trans-
mitter) in a pipe, so that its location can be identified above
ground. Sondes can be placed at a problem point in the pipe
using a camera push rod or cable. They can also be flushed
down the pipe.
The following assumes that the sonde is in a horizontal
pipe, the ground is approximately level and the Scout is
held with the antenna mast vertical.
Important! – Signal strength is the key factor in determining
the sonde's location. To ensure an accurate locate, you MUST
take care to maximize the signal strength prior to marking an
area for excavation.
5.4.1 When locating a sonde set up the locate in the
.
following manner:
Before putting the sonde in the line, use the Scout to
make sure it's operating and that Scout is receiving its
.
signal.
Once the sonde is in position and transmitting, activate
the sonde and match the same frequency as the sonde
on the Scout. Make sure it has a sonde mode icon