Xylem wtw NitraVis 705 IQ, Руководство по эксплуатации

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NitraVis 70x IQ
Maintenance and cleaning
37 ba75951e03 05/2017
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 % iso -
propanol), made of 7 volume parts isopropanol for
analysis and 3 volume parts ultrapure water