Yokogawa IR200 - Manual (Page 78)

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IM 11G02M01-01E
7.5.2 How to clean cell
1. To clean the cell inside or infrared ray transmission window, first clear large dirt of it with a
soft brush and then wipe with soft cloth lightly.
Don’t use hard cloth.
Note) Handle the fragile window with care. Use care not to rub off the dirt from the
window roughly.
2. If the window or the cell interior is very dirty, use a soft cloth moistened with absolute
alcohol.
3. If the window is corroded, rub off the scale from the window lightly with a soft cloth to
which chrome oxide powder is applied. If it is excessively corroded, it should be replaced
with new one.
4. When cell or window cleaning is completed, assemble according to the cell disassembly and
assembly procedures. Especially, the pipe should be closely connected without gas leak, and
repair if the pipe is bent.
7.6 Inspection and maintenance of limited service-life components
The analyzer uses limited-life components. The recommended replacement periods are listed in
the below table.
1. Limited service-life components are those which wear out or for which failure is presumed
within five years under normal operating or storage conditions. Components with more than
five years of service life are the exception.
2. The previous table only involves the recommended periods for conducting preventive main-
tenance for limited service-life components; these periods do not guarantee that accidental
failures will not occur.
3. The recommended replacement preiods are tentative and depend on operating conditions.
4. The recommended replacement preiods may vary depending on the field date.
1. Light source Recommended replacement period: Every five years (*1)
2. Sector motor Recommended replacement periods: Every two years (*1)
3. Detector without Recommended replacement period: Every five years (*1)
O 2 sensor
4. O-ring Recommended replacement period: Every two years,
inspect it when cleaning of measuring cell. See Sec. 7.4
5. LCD panel Recommended replacement period: Every five years (*1)
6. Power supply Recommended replacement period: Every five years (*1)
7. Measuring cell Set up an appropriate maintenance period
( by refering to the check results)
Checkpoint
Infrared gas analyzer
Check and
maintenance items
Procedure and criteria
Recommended check and
maintenance periods
Every five years Every two years Once a year Every six months Every three months Once a month Once a week Routine
(*) In the check and maintenance columns, place a check mark ( ᭺ ) for check and confirmation work,
a dark star (
ଙ
) for replacement, and a white star (
ଝ
) for parts preparation for preventive maintenance.
(*1) These are seviceperson’s work, contact our sevicepersons.
ଙ
ଙ
ଙ
ଙ
ଝ
ଝ
᭺
᭺
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