Agilent Technologies Agilent 7890 Series Maintenance Manual page 316

Gas chromatograph
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16
Maintaining the G3435A/G3436A FPD
316
4
Disconnect the retaining spring that holds the PMT
assembly to the bracket. With a rotating motion, pull the
assembly away from the filter housing.
To prevent light from damaging the PMT, cap the end or
5
place it face down.
Place a clean cloth under the filter housing to catch the
6
filter.
For phosphorus filter, use the sharpened wooden tip of
a toothpick or cotton swab to dislodge the filter from
the housing.
For sulfur filter (shown below), use the wooden tip of
the cotton swab to remove the filter spacer. Then
dislodge the filter from the housing.
Maintaining Your GC

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