USER MANUAL | ICOS | INSTRUCTIONS | UM/ICOS-EN REV. B.2
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Appendix F:
Mirror Cleaning Procedure
Mirror Ring-Down Time and Maintenance
The analyzer’s mirrors are protected from contamination by an inlet filter, but with
continued use the mirrors may gradually decline in reflectivity. This does not create
significant error in the gas mixing ratio measurement because the mirror reflectivity is
continually monitored, and the measurement is compensated for using the mirror ring-
down time. However, if a significant change occurs in the mirror ring-down time (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.
o
Mirror cleaning kits are included as part of the (recommended) maintenance
kits (MTN-CLEAN-M). See Optional Components.
If further maintenance is required, contact ABB-LGR for service.
o
Technical Support: icos.support@ca.abb.com
Only authorized persons may open the analyzer cover or perform internal
maintenance. Contact ABB-LGR for maintenance instructions and mirror
cleaning kits. 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.
Required Tools and Materials
The ABB-LGR Mirror Cleaning kit includes:
1 – 30ml LDPE screw-top bottle filled with Acetone (HPLC Plus,
≥
99.9%)
1 – 30ml LDPE screw-top bottle filled with Methanol (HPLC Plus,
≥
99.9%)
1 – 30ml LDPE Dropper Bottle labeled Acetone
1 – 30ml LDPE Dropper Bottle labeled Methanol
1 – Compressed air duster canister
1 – Chapman screwdriver kit
2 – Edmond Scientific lens tissue packs (with staples removed)
1 – Stainless steel mirror cleaning block
1 – Delrin mirror pushing tube