Cleaning The Measuring Gap - wtw IQ SENSOR NET NiCaVis 705 IQ NI Operating Manual

Maintenance and cleaning
Proceeding
5 - 4

5.2.4 Cleaning the measuring gap

To remove lime or grease deposits, use the flocked cleaning cards
together with the following detergents:
Contamination
Lime deposits
Grease deposits
 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
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.
Cleaning agents
Hydrochloric acid 5 % for analysis
Mixture of isopropanol and water (approx.
70 % isopropanol), made of 7 volume parts
isopropanol for analysis and 3 volume parts
ultrapure water
. If necessary, leave the cleaning card in the
NiCaVis 70x IQ NI
ba75988e01 11/2012