SubSurface Instruments AML PRO Operator's Manual page 25

Determining depth with the AML Pro
Once you have located the PVC pipe or underground
object, find its center and mark its position on the
ground, tilt the handle of the unit downward until the
blade is at 45º (figure 25-1) walk backwards until you
find the top of the pipe, –make sure you found the
pipe by scanning its edge 3' to the left or right of your
position–. Make a mark where the laser indicator is
located on the ground. Measure the distance between
both of the marked points, this will be the depth at
where the PVC pipe is located.
3
Ground Level
1. Determine pipe center & mark the ground
1
2. Tilt the AML to a 45º degree angle*
2
3. Start walking backwards until you find the pipe again
3
-
Make sure you found the pipe by scanning 3' to either side
4. Mark the spot on the ground
4
5. The distance between both points, is the depth of the pipe 5
* AML Pro has an integrated level to determine 45º angle.
Figure 25-1
45º
4
-
2
45º
D = 10'
5
Subsuface pipe
or object
10°
1
Depth = D
25