YSI IQ S ENSOR N ET NitraVis 70x IQ TS - Manual (Page 39)

NitraVis 70x IQ TS
Maintenance and cleaning
5 - 3 ba75950e02 11/2012
5.2.3 Basic cleaning
Steps of the basic
cleaning
After completing the cleaning procedure, screw in the blind plug or
compressed air connection.
1. Take the sensor out of the test sample and remove any solid
matter deposits and incrustation of fouling matter manually
with a brush or sponge.
2. Wash the sensor down with warm tapwater (30 - 50 °C).
Note: Do not use a pressure washer or steam blaster.
3. If the sensor might be contaminated with pathogenic germs it
should be disinfected with a surface disinfectant. This also
applies to the cable and mounting parts.
Note: Follow the instruction manual of the disinfectant (reac-
tion time!).
4. Remove the blind plug or unscrew the compressed air connec-
tion from the sensor.
5. Clean the sensor with soapy water. When doing so, clean the
area of the measuring gap and the compressed air channels
very thoroughly.
The compressed air channels can be cleaned with the aid of
interdental brushes and rinsed with soapy water from a wash
bottle.
6. Soak the flocked cleaning cards with soapy water and use
them to clean the measuring gap as shown in the following fig-
ure. Cut suitable strips off the cleaning card to clean the bottom
of the measuring gap.
Then rinse the sensor with running warm tapwater and finally
with a lot of ultrapure water.
7. Finally wipe the measurement window with a lens tissue.