Location of
Location of
Location of
Calibration Buttons
Calibration Buttons
Calibration Buttons
X +
X -
138 • 3100 SERIES
Fig. 17
Y +
Y -
Fig. 19
Rotating Beam (Dashed Line) is
shown NOT in-line with plumb
line
Plumb Beam
1
2
Calibrated
9
10
11
3
4
5
6
7
8
B
A
Y+ Facing the Target
(i.e. wall, detector)
Fig. 21
12
13
14
Fig. 20
50 mm
( 2.0 in )
Fig. 18