YSI CarboVis 705 IQ - Manual (Page 42)

Maintenance and cleaning
CarboVis 70x IQ
5 - 4 ba75950e02 11/2012
5.2.4 Cleaning the measuring gap
To remove lime or grease deposits, use the flocked cleaning cards
together with the following detergents:
Proceeding  Start by removing any lime deposits.
 Soak a flocked cleaning card with the relevant detergent and use it
to clean the measuring windows according to step 6. in section
5.2.3 B
ASIC CLEANING
. If necessary, leave the cleaning card in the
measuring gap for a few minutes so the detergent can take effect.
 Thoroughly rinse with ultrapure water the measuring gap and the
surrounding areas moistened with detergent.
 Then wipe the measurement window with a lens tissue. The surface
of the measurement windows must be free of streaks.
 Protect the cleaned sensor against new contamination.
Contamination Cleaning agents
Lime deposits Hydrochloric acid 5 % for analysis
Grease deposits Mixture of isopropanol and water (approx.
70 % isopropanol), made of 7 volume parts
isopropanol for analysis and 3 volume parts
ultrapure water