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Sonic Tracker and SAS Setup
Sonic Tracker II Specifics
59
P-32+ and P-32 Operator’s Manual P/ N: 1001547-01
Sonic Tracker II Positioning in Relation to Reference
Raise or lower the tracker bracket to position the tracker at the proper height above the grade reference
(Figure 102). The tracker has a total working range of 14 to 55 inches. For paving applications the
recommended working height would be from 14 to 24 inches. At 55 inches the sonic footprint would be very
large and the tracker may pick up an undesired reference. The tracker also compensates for temperature
changes only within the bail range. Placing the tracker too far from the reference may not allow for accurate
temperature compensation.
Figure 102: Recommended Sonic Tracker I I Placement
Placement When Using Surface Stringline
Sometimes the surface to be paved contains pot holes or the surface is too broken up to use as a joint match
reference. Setting an elevated stringline is too time consuming, especially for small, divided up projects. I n these
applications, surface stringline would be a good alternative (Figure 103). See “Setting Surface Stringline” on
page 23 for further details.
Figure 103: Sonic Tracker I I Placement – Pot Holes
Sonic Tracker II
55"
(140cm)
14"
(35.5cm)
14"
24"
Total
Tracker
Range
Recommended
Height for
Paving
Sonic Tracke r II
T
14"
to
18"
Sonic Tracke r II
Sonic Tracke r II
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