Sonic Tracker Positioning in Relation to Reference
P/N 7010-0341 www.topconpositioning.com
6-7
Figure 6-7. Tracker & Mechanical Ski Placement
Placement When Using Elevated Stringline
Some jobs may require the mat be laid to a specified elevation.
In an application like this, an elevated stringline or wire may be
set up. The sonic tracker has a built in working window that
will prevent the screed from diving if the tracker loses the
stringline reference. Position the tracker over the stringline and
set the distance between 18 and 24 inches (Figure 6-8).
Figure 6-8. Tracker Position – Mat laid at Specific Elevation.
Min.
4"
S
onic
T
racker
II
String or Wire
Min. of 4" Above Ski
C
L
15
'
30
'
S
onic
T
racker
II
T
18"
to
24"
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