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5.8 Aligning the Sampling Needle in the Inject Port
Align the sampling needle in the inject port at the following times:
• After replacing the sampling needle assembly (see Section 5.4) and/or the
needle seal assembly (see Section 5.7
)
• If the needle becomes misaligned
NOTE Before aligning the sampling needle, always inspect the
needle to make sure it is not bent. If the needle is bent,
replace the sampling needle assembly (see Section 5.4
).
Two methods are available for aligning the sampling needle:
• Automatic alignment, using Chromeleon or Chromeleon Xpress (Release 6.8
SP2 or later)
• Manual alignment, using the AS front panel screens
This section describes the alignment procedure in Chromeleon or Chromeleon
Xpress.
If Chromeleon or Chromeleon Xpress (Release 6.8 SP2 or later) is unavailable,
refer to Section D.8
for instructions on how to use the front panel screens to align
the needle.
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