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LOCATING AN ACTIVE DUCT PROBE (ADP) Press to turn the Receiver on.
Press to select the 33kHz frequency.
Press to select the Peak mode . If you find that the
received signal is too weak in this mode, try the Special Peak mode.
To select Special Peak mode, from Peak mode, press and hold
then press to toggle between Peak and Special Peak
modes.
While in this mode the Peak flag will flash.
With the Receiver handle perpendicular to the conduit path, locate
the ADP position by moving along the path until a peak is found.
Press when the bar graph remains either fully open or fully
closed. Refer to the ADP operating instructions for further
information.
Determining ADP Depth
Place the Receiver Antenna on the ground directly above the located
ADP position maintaining the handle orientation perpendicular to the
path. Press twice to display ADP depth . To return to
trace mode, press or .
Note: During a depth measurement, the display will exhibit '---' when the
received signal is too low, too high or erratic.