ii) Using the null method, pinpoint the spot on the surface
directly above the line and mark it.
iii) Turn the receiver to the 45° position. Use the level on
the face of the receiver marked “45° LEVEL GUAGE”
to set this position. The receiver will be properly posi-
tioned when the bubble in the level is directly in the
center.
iv) Now move the receiver away from the first null mark at
a right angle from the direction of the line
(Figure 12 &
13)
. You will locate a null as you move the receiver
horizontally. Hold the receiver so that the bottom edge
of the bottom of the box sets on the ground when find-
ing this 45° null to obtain accurate results.
Model 902 Pipe & Cable Locator
21
