Hitachi CHROMASTER 5160 Instruction Manual page 928

NOTE: Close the front door (refer to Fig. 2-1, (L) and (R)) when
a sample vial is set. Avoid rapid changes in ambient
temperature, and not exposed to drafts such as an air
conditioner. These may influence the analysis result
which reproducibility with high precision required.
NOTE: Before starting an analysis, select the NEEDLE side by
pressing the WASH key of the autosampler to fill the
needle, the injection port, and the buffer tube with
deaerated wash fluid1 (or wash fluid2, when it is used).
Otherwise, the deaeration state of the wash fluid in the
flow path will be changing gradually, so reproducibility
just after the analysis starting may be unstable.
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