Locating The Sonde - RIDGID NaviTrack Scout Manual Del Usuario

Pole
Ground
Poles usually occur where conventional locators would experience "nulls",
the dead spots that occur when the signal passes 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
matter 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 (transmitter) 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.
Signal strength is the key factor in determining the sonde's
IMPORTANT
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 .
WARNING
Be sure that the frequency selected matches the desired use. 512
and 33 are available as a sonde AND a line trace frequency. Using a
sonde frequency for line tracing or vice versa, can cause the Scout
to display incorrect depth information.
• Go to the suspected sonde location. If the direction of the pipe is
unknown, push the sonde a shorter distance into the line (~5m from
the access, is a good starting point).
5.4.2 Next, use one of the following methods to locate the sonde:
Method 1 – Maximize Signal Strength
Pole
1. Hold the Scout so the mast is out away from your body. Sweep the
2. Lower Scout to its normal operating position (mast vertical) and walk
3. Once the maximum has been found, place the Scout close to the
NOTE
position than the highest signal if the sonde is tilted (see section tilted
sonde).
Method 2 – Follow the Equator – Then Maximize
1. Works best in unobstructed, open areas, when the sonde is
2. When the Scout displays a steady Equator line centered on the screen,
When the Sonde is tilted be sure the find the maximum signal as that is the
place where the sonde will be.
NaviTrack Scout
mast in the suspected direction of the sonde while observing the signal
strength and listening to the sound. The signal will be highest when
the mast is pointing to the sonde.
in the direction of the sonde. As you approach, the signal strength will
increase and the audio tone will ramp and rise in pitch. Use the signal
strength and the sound to maximize the signal.
ground over the peak and move in all directions to make sure that the
signal drops off.
The highest signal counts, the equator line can be on a different
expected to be horizontal. Sweep the mast and then walk in the
direction of maximum signal strength as in Method 1.
follow it towards increasing signal strength. When maximum signal
strength is reached move the Scout along the Equator and in all
directions to be sure that it is on the peak.
9