Maintenance and repairs
5.2 Cleaning and caring for the device
Unified Comfort Panels Hygienic
38 Compact Operating Instructions, 04/2023, A5E52219907-AA
5.2 Cleaning and caring for the device
5.2.1 General information on cleaning
The front panel is protected against the ingress of liquids according to the degree of
protection. In particular, the following degrees of protection apply:
• IP69 degree of protection on the front according to EN 60529
• IP66K degree of protection on front according to ISO 20653
You can find more information in section "Information on insulation tests, protection class
and degree of protection (Page 53)".
Just as you foam and disinfect your machine and rinse away product residues with a steam jet
and high-pressure cleaner, you can also clean the front panel of the mounted device. Observe
the following notes for this.
Danger of explosion when cleaning in hazardous areas
If you use a dry cloth to clean the front panel in a hazardous area, static electricity may be
discharged. This can trigger an explosion resulting in injuries and machine damage.
• Do not use a dry cloth to clean the front panel.
Use a well moistened cloth or a suitable anti-static cleaning device.
Permissible and non-permissible cleaning agents and cleaning tools
Impermissible and unsuitable cleaning agents and cleaning tools can damage the HMI
device.
Not permitted:
• Do not clean the HMI device using aggressive solvents, cleaning agents or disinfectants,
greasing or abrasive detergents, concentrated acids or caustic solutions.
Do not use chlorine or chlorides, e.g. active chlorine, to clean the stainless steel frame.
You can find detailed information in section "Chemical Resistance (Page 43)".
• Do not use a laser beam, ultrasound or dry ice to clean any part of the front panel.
• Do not clean protein-containing product residues with temperatures above 60 °C.
Otherwise, the protein will curdle and stick to the surface.
• Do not clean the surface with pointed, sharp or scratching tools such as knives, brushes
or coarse cloths.
Permitted:
Use commercially available glass or plastic cleaners for cleaning the front panel.
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