PCME QAL 181 X, Руководство пользователя

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- PCME QAL 181 MANUAL: 101 -
3.10 Refit Beam Dump taking care to align holes in Inner Tube with hole in Beam Dump and fix
in place with the M3 grub screws, (Tip – loosely fit both, these should ‘Self Centre’ due to
shape, before finally tightening).
In addition to blowing the ND filter, it is sometimes necessary to clean by use of optical cleaner.
In this case carry out additional steps;
3.11
Remove ND Filter from the Beam Dump/Mirror Mount.
3.12 Carefully clean with optical cleaner and swabs, replace the ND Filter.
3.13 Clean the Quartz Rod tip with optical cleaner and swabs (also take opportunity to clean the
inside surface of the exposed Inner Tube) and refit the Beam Dump/Mirror.
3.14 Refit End Cap and air supply and check the Zero, Span and Audit Unit readings
If the ‘Span Element’ (Opal) has become very heavily contaminated then it may be necessary to
move the Quadrant so that the Opal can be cleaned more thoroughly.
3.15
Complete steps 3.1 – 3.4
3.16 Clean the outer surfaces of the End Cap and the Outer Tube, remove the End Cap
3.17 Check for signs of contamination within end cap (both liquid and dry). Note type(s) and
clean.
3.18 Undo and remove the 4 Hex head bolts holding the Outer Tube in position. ‘Release’ from
seal (if necessary use the ‘jacking threads’) and remove the Outer Tube.
Remove 4 off bolts
holding Outer Tube in
position
Re use 2 off bolts in ‘Jacking
Points’ to help separate
Outer Tube from Seal
Remove Screws
Remove ‘Backing Plate’
Remove ND Filter