29
In order to build up a 2-axis stitched C-Scan once the scanner stops moving:
20.
Apply the wheel brakes on both tractor unit.
21.
When using Eddyfi PA UT instrument, press the on-board button on the tractor unit to
increment the step on the instrument. If using another instrument, manually increment the
step on that instrument.
22.
Loosen the corrosion mapping mount, either by the spring-loaded lever lock, or the cam lever
lock, then slide to the next desired incremental position along the rail and lock in place.
IMPORTANT
The incremental position of the corrosion mapping mount along the rail can be achieved by using either
the spring-loaded lever lock at the hole spacing of the rail, or the cam lever lock at manually determined
spacing. When using the cam lever lock ensure the spring-loaded lever locks the spring-loaded pin in
the raised position.
23.
Release the wheel brakes on both tractor unit.
24.
Move the scanner backward to continue data acquisition.
NOTE
A long press on the tractor assembly button will reset the scan direction encoder to zero.
25.
Repeat the above steps from step 19 until all scans have been captured for the C-Scan.
