DMTA-20006-01EN, Rev. B, February 2014
Setup and Operation
41
inspected pipe, and to ensure the encoder wheel remains in contact with the
inspected surface.
The tail and the probe holder are designed with pivoting joints that are not only
spring loaded, but can also be quickly repositioned by hand to easily be conformed to
the inspected surface curvature.
11. For dual-probe scanning, ensure that the two probe holders are aligned, and that
the two tails are aligned.
12. Adjust the length of the exposed cables and tubes (see section “Adjusting the
Length of Exposed Cables and Tubes” on page 26).
13. Clip the couplant tubes and the probe cables to the cable-management posts.
2.7 Using the Wedge-Separation Indicators
For dual-probe scanning, the wedge-separation indicators, along with the 1 mm
graduations on the crossbars, can help you to determine and/or set the distance
between the wedge faces.
To use the wedge-separation indicators
1. Set up the COBRA scanner (see section “Configuring the Scanner Using the Setup
Template” on page 27 or section “Configuring the Scanner Without the Setup
Template” on page 35).
2. Loosen the crossbar screws on both sides of the scanner.
3. Slide the wedge-separation indicator(s) on the crossbar(s) so that the right hand
side of the wedge-separation indicator(s) is aligned with the n
th
major graduation
from the right hand end of the crossbar(s) [see Figure 2-25 on page 42].
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