8. Maintenance
8.1 Cleaning the Probe
Do not remove the filter.
CAUTION!
Do not attempt to clean the sensors under the filter in any way.
CAUTION!
Avoid exposing the probe to cleaning agents for unnecessarily long periods of
time.
You can clean the
H
2
O
2
and humidity probe body and temperature probe body and cable
by
wiping them with a soft, lint-free cloth moistened with water or mild cleaning agent, such as
isopropanol. Do not wipe the filter: wiping the filter may block its pores and/or deposit residue
on the filter. If the filter is heavily contaminated, replace it.
When cleaning, follow these precautions:
• Avoid touching the filter. If you need to touch the filter, always wear clean gloves (cotton,
rubber, or similar material). Keep the filter free of any grease or oil.
• Do not scrape the probe body.
• Do not immerse the probe in liquid to clean it.
• Wipe cleaning agents off the probe after cleaning.
If needed, you can spray the probe surfaces with water.
After cleaning the probe, it is recommended to perform a chemical purge.
8.1.1 Chemical Tolerance
Avoid exposing the probe to chemicals for unnecessarily long periods of time. Do
not immerse the probe in a chemical, and wipe chemicals off the probe after
exposure.
You can use mild cleaning agents, such as isopropanol, to wipe the probe body. Avoid
exposing the filter to chemicals.
The probe does not withstand DMSO (dimethyl sulfoxide C
2
H
6
OS).
After exposing the probe to chemicals, it is recommended to perform a chemical purge.
HPP272 User Guide
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