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USER MANUAL | ICOS | INSTRUCTIONS | UM/ICOS-EN REV. B.2
4
Maintenance
Daily Operation Checklist
Table 10 describes routine maintenance tasks that keep your analyzer operating smoothly.
Frequency
Every 1-2 days
Every 3-6 days
Mirror Ring-Down Time and Maintenance
Measurement cell mirrors are protected from contamination by an internal inlet filter. With
continued use the mirrors may gradually decline in reflectivity.
If a significant change occurs in the mirror ring-down time (for example, greater than 20%
reduction), the precision of the measurements may be reduced.
Periodically note the ring-down time. If a significant reduction in ring-down time occurs:
Request a mirror cleaning kit from ABB-LGR.
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If further maintenance is required, contact ABB-LGR for service.
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Technical Support: icos.support@ca.abb.com
o
Only authorized persons may open the analyzer cover or perform internal
maintenance. Make sure the analyzer is unplugged before working with
the internal components. Failure to do so may result in damage to the
analyzer and electric shock.
Table 10: Maintenance Checklist
On the Spectrum Display , verify that the spectrum is correct.
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The spectrum should appear as shown in Figure 25. Become
familiar with the normal appearance of the spectrum (the best
way of diagnosing analyzer performance). Any deviations
from normal could indicate a problem with the analyzer.
Log the transmitted intensity displayed in the upper panel of
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the spectrum screen. Any decrease in transmitted intensity
could be indicative of dirty mirrors.
Log the analyzer pressure. Any decrease in pressure could be
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indicative of an obstruction in the flow system. An increase in
pressure could be indicative of a leak in the system, or a pump
failure.
Check the Laser Offset and adjust if necessary. (Figure 39)
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Task
60
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