CETAC M-7600 Mercury Analyzer Operator's Manual

CETAC QuickTrace M-7600 Mercury Analyzer
Chapter 5: Maintaining the Mercury Analyzer
Changing the Cell Gas Tubing
Begin by opening the optical access panel as shown on page 106.
Next, replace the tubing. The replacement tubes, which are in the cell gas
tubing kit, are labeled and precut to length. See Figure 5-10 for label
designations. Match these numbers and letters with the existing tubing to see
where each labeled tube should go. It is best to replace one tube at a time.
Figure 5-10
Tubing Diagram and Connection Table.
To remove an old tube from a plastic connector, grip it near its connector and
pull firmly. For glassware, it is better to slit the old tube with a razor blade or
sharp knife, before removing. Alternatively, you may use the edge of a
fingernail to ease the tube off its glass arm.
A simple way to avoid making wrong connections is to remove only one tube at
a time, and replace this tube with the appropriate, labeled new one, before
proceeding to the next tube.
Drying cartridges are replaced as assemblies (replacements with tubing
already attached).
When finished, be sure no tubing is pinched when the covers are replaced.
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