Locating A Sonde - SubSurface Instruments PL-VF10 User Manual

Hold the r
sensitivity needs to be adjusted for a meter reading indication between 60% to 80%.
The radiation pattern of the s
directly over the s
behind and in front of the s
the locate.
Start by following the suspected path of the pipe. Stop locating when the PEAK reading is found.
Then rotate the Receiver as shown in the figure below. When pivoting the Receiver, do not change the
vertical position. The Receiver will indicate a peak when the Receiver antenna is in line with the Sonde.
FEED THE SONDE 10 FEET INTO THE PIPE
Now move the Receiver side to side (across the path of the pipe) as shown below. When the PEAK
if found, the Receiver is directly over the Sonde. Mark this location. Next, check for ghost signals in
front of and in back of the Sonde to confirm the location.
www.ssilocators.com
antenna directly above and in line with the s
eCeIver
onde
with the antenna in line with the s
onde
. By locating the ghost signals, the user is confirming the accuracy of
onde
NULL
GHOST
PIPE
PIPE
l s
oCating a onde
is shown below. The PEAK signal is when the r
NULL
PEAK
PIVOT THE RECEIVER
SO THE ANTENNA
ROTATES NOT CHANGING
THE VERTICAL POSITION
MOVE THE RECEIVER
SIDE TO SIDE AND
WHEN A PEAK
SIGNAL IS FOUND,
THE RECEIVER IS
OVER THE SONDE
EARTH
, as shown below. The r
onde
. Both Ghost signals can be located
onde
GHOST
EARTH
eCeIver
is held
eCeIver
23
SERIES