User's Manual

Instruction Manual
748332-F
April 2003
4-10 Maintenance and Troubleshooting Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 NDIR
GAS DESICCANT PART NUMBER
CO
2
Cardoxide 096218
CO Mg (C10
4
)2 096217
H
2
0 Mg (C10
4
)2 096217
SOS Mg (C10
4
)2 096217
CH
4
Mg (C10
4
)2 096217
Hexane Mg (C10
4
)2 096217
CO + CO
2
Cardoxide + Mg (C10
4
)2 096217/096218
4-13 CELL DESICCANT
The reference cell may use a flowing
reference. If so, desiccant is required. A
desiccant holder is used on the inlet and
outlets to keep moisture from entering the
reference cell (see Figure 4-7 on page 4-7).
The desiccant should be replaced each time
the cell is opened, refer to Table 4-1 below.
Before inserting desiccant, purge cell with dry
inert gas (i.e., N
2).
Table 4-1. Cell Desiccant