Locating The Cable Or Pipe; Peak Mode Locating - SubSurface Instruments PL-TT Series User Manual

Make sure the t
(4.5 meters) away from the t
Inductive search mode.)
Hold the r
the r
eceIver
82kHz.
Keep the r
r
eceIver
the r
eceIver
off.
If you rotate the r
aligned with the flat side of the r
Trace the path by walking away from the t
left and right while walking, following the PEAK indications.
As you trace the path, the PEAK meter reading may slowly fade as you move away from the
t
ransmItter
(higher or lower). One of the following may occur:
If you can no longer trace the path, even with the GAIN set to maximum, connect the t
the far end of the path and trace back to the point where you lost the signal.
Mark the straight sections of the path every few feet. Mark sharp curves, loops, and cable bundles
every few inches. Sharp changes in the path cause the r
differently than when tracing a straight path. Practice on the path that you know has turns and laterals
in it. This will help you to recognize the conditions within the field.
12
SERIES
l
oCating the
is connected and in the ON position. Then move approximately 15 feet
ransmItter
ransmItter
so that you can easily see the LCD bar graph and the control panel. Make sure
eceIver
and the t
ransmItter
Peak Mode
in a vertical position. Move the r
eceIver
is directly above the cable or pipe, rotate the r
away from the cable path, the meter reading (and audio frequency response) will drop
while over the cable, a sharp NULL will identify the cable's direction. It is
eceIver
MAXIMUM
RECEIVER
SIGNAL
. Press and release the GAIN buttons as needed to compensate for changes in level
a) A junction where the signal divides and goes several directions.
b) A break in the cable or shield.
c) A change in the depth of the cable or pipe.
d) An insulated pipe fitting.
e) A slack loop of cable.
C p
able of
along the path. (Move about 25 feet (7.5 meters) for the
Frequencies are both set for the same Frequency, 8kHz, 33kHz or
Buried Cable
(Side view)
p m l
eak ode oCating
eceIver
.
eceIver
CABLE CABLE
PATH PATH
at a moderate pace. Move the r
ransmItter
ipe
Representation of
Bar Graph Signal
over buried cable
left to right across the path. When the
for a maximum signal. As you move
eceIver
NULL SHOWS
CABLE
DIRECTION
PEAK and NULL indications to behave
eceIver
to the
eceIver
to
ransmItter
www.ssilocators.com