Caution - MSA Sirius Mode D'emploi

Use the Ion Chamber Replacement Kit (P/N 10050783).
Remove and re-install the ion chamber in a clean, non-haz-
ardous environment.
1. Turn OFF the instrument and, while in a non-hazardous and non-
combustible area, remove the battery pack.
2. Unscrew the captive screw from the clear filter housing on the back
of the instrument and remove the filter housing.
3. Gently remove the ion chamber cover assembly (FIGURE 6-2a)
from the instrument and set the assembly on a clean, lint-free
surface.
4. Using a small, flat-blade screwdriver, gently remove the ion
chamber from the cell holder and discard (FIGURE 6-2b).
Figure 6-2a. Ion Chamber Removal
6-6

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