User`s guide

- 12 -
2
2
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M
M
E
E
A
A
S
S
U
U
R
R
E
E
M
M
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T
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C
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:
:
• Presentation :
The cells used in the MX2000, which are a vital element of the instrument, must be
treated with great care. Mechanical shocks, excessive temperatures or just the entry
of water in the course of gas pumping, can be harmful to the quality of the
measurement, or may even ruin the cells in extreme cases..
The various cells (explo, O
2
, CO, H
2
S) are recognisable by their very special shapes
and by their clear and uncoded marking as illustrated by the CO and H
2
S cells (fig.7).
Physically, the cells will always be placed in the same manner. They cannot be
reversed (fig.8).
fig.7
explosimetric cell
oxygen cell
TOX cell
(CO or H
2
S)
• Installation or replacement :
The cells are all of the plug-in type and can be reached when the cell cover is
removed, when they can be changed quickly and easily. This operation should be
carried out with care in a clean atmosphere :
- switch off the instrument
- undo the 6 securing screws of the front cover
- insert a new cell if necessary, or change a defective cell (refer to the
maintenance
- section for the use of menus)
- re-fit the front cover
fig.8