CETAC M-7600 Mercury Analyzer Operator's Manual

Operator’s Manual
Chapter 5: Maintaining the Mercury Analyzer
Inspect the assembled cell to determine that both O-rings (A, B) are fully
engaged as shown in Figure 5-6. In Figure 5-6, shown without the window and
cell cap, area “C” reveals no O-ring gap. This indicates that both O-rings A and B
of Figure 5-5 are fully engaged. Figure 5-7, shown with window and cell cap,
also reveals no O-ring gap at point C, (the boundary between the cell end (E)
and the cell end cap.
Figure 5-6 Engaged O-Ring. Shown without the window and cell cap.
C - No gap visible
Figure 5-7 Engaged O-Ring. Shown with the window and the cell cap.
C - No O-ring visible D - Window O-ring E - Cell
NOTE
The O-ring “D” visible in Figure 5-7 seals against the cell window.
If an O-ring is NOT engaged, as in Figure 5-6, the O-ring “B” Figure 5-8 is
visible in the gap immediately at the end of the glass cell “E” Figure 5-8. This
should look, instead like region “C” in Figures 5-5 and Figure 5-7. If the O-rings
are not engaged correctly (as in Figure 5-8), then the system may drift and
perform poorly. Assemble and attach the remaining cell end cap to the other
end of the glass cell.
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