DMTA-20006-01EN, Rev. B, February 2014
Chapter 2
28
If the joints do not disassemble freely with the pivot screws loose, break them loose by
hand using a little force.
2.
Determine how to configure the scanner:
a)
Determine the real outside diameter of the pipe to be inspected. Do not
assume that the nominal diameter is the real OD. It is often not.
b)
See the scanner setup chart to note the probe-holder position, as well as the
number and type of links required for the outside diameter of the pipe to be
inspected (see Table 15 on page 65 for pipe OD smaller than 2.50 in., and
Table 16 on page 66 for pipe OD larger than 2.50 in.).
c)
On the setup template, locate the correct size setup pattern for the encoder-
side configuration of the scanner (see to Figure 1-2 on page 16 to identify the
encoder side components).
d)
See Table 7 on page 55 to select the appropriate wedge for the outside
diameter of the pipe to be inspected.
For single probe scanning, you must use the encoder side of the scanner.
3.
Configure the tail of the scanner:
a)
Loosen the tail-adjustment screw (see Figure 2-7 on page 28) approximately
half a turn so that the length-adjustment joint is free to slide.
Figure 2-7 The tail-adjustment screw
Tail-adjustment screw
Tail wheel
Summary of Contents for COBRA
Page 6: ...DMTA 20006 01EN Rev B February 2014 List of Abbreviations vi...
Page 18: ...DMTA 20006 01EN Rev B February 2014 Important Information Please Read Before Use 12...
Page 56: ...DMTA 20006 01EN Rev B February 2014 Chapter 3 50...
Page 66: ...DMTA 20006 01EN Rev B February 2014 Chapter 4 60...
Page 76: ...DMTA 20006 01EN Rev B February 2014 List of Tables 70...