Schonstedt Rex Lite, User Manual

Page: 9 / 29

6
Automatic and Manual Gain
The Rex Lite receiver has the ability to operate in an automatic or manual gain mode.
In the automatic gain mode, the receiver adjusts its sensitivity automatically, based
on the strength of the detected signal, to produce a relatively constant and strong
signal strength indication. In the manual gain mode, the user can adjust the sensitivity
up or down to suit different locating scenarios.
Directional Indication
The Rex Lite receiver is equipped with directional indicators (arrows). These visual
and audible indicators help the user locate the pipe or cable by showing which direction
he/she should move in order to get closer to the target. These indicators are not
available in the Sonde mode.
Depth Measurement
The Rex Lite receiver has the ability to measure the approximate depth of the target pipe
or cable. When measuring depth, the receiver must be fully extended, and the bottom
tip of the receiver must be touching the ground. Depth measurements should only
be made when the directional indication says that the target is close and the receiver’s
signal strength is maximized (peaked) over the target. Special considerations are
required for the Sonde mode.
Searching for a Sonde
Once in the surroundings of a sonde, it is
important to differentiate whether you are
positioned along the axis of the sonde (the
direction of the pipe) or off to either side. In the
sonde mode, the directional indication is not
functional; the
signal strength is the only
indication available.
Rotate the receiver back and forth and move in
the direction that produces the maximum (peak)
signal strength. As the receiver gets closer to the
sonde, the signal strength increases and it will hit
a peak when the receiver is directly over the
sonde. Slowly rotate the receiver to fine tune the
peak signal strength, which will occur when the
plane of the sensors is parallel to the axis of the
sonde. For verification, rotate the receiver 90
degrees and see that it produces a “null" (signal
strength very close to zero), and then counter-
rotate 90 degrees to go back to the original
position.