Barco R9802352, Installation Manual, Page: 12 / 16

R5914789 /00 UDX Bottom filter 12
Since it is more cumbersome to clean the bottom filter when compared to the regular UDX filters, it
is advised to only remove the bottom filter when visual inspection and comparison point to it being
necessary to clean the filters
Inspecting the filters can be performed by a trained projectionist who is aware of potential risks
involved.
Removing and cleaning the filter can only be performed by a certified service technician.
How to clean the filters?
1. Remove the bottom filter from the projector in the same way you have mounted it.
2. Inspect the filter.
3. Clean the filter using a vacuum cleaner, or by using a by a Na
2
CO
3
mixture. For more info, see “ Washing
and drying the dust filters ” , page 12 .
or
Replace the filter if it is too dirty or when damaged.
4. When cleaned, mount the filter back onto the projector.
2.5 Washing and drying the dust filters
About filter washing and drying
For environments where popcorn grease and such can contaminate the filters, Barco advises the client to
purchase one extra set of filters to cover drying time, as well as taking following extra precautions and
instructions pertaining to filter cleaning and drying.
Cleansing agent
To clean sticky, greasy dust filters we suggest usage of Sodium carbonate crystals (Na
2
CO
3
). Sodium
carbonate (Often called washing soda , soda crystals , or sal soda in the detergent section of stores) is
widely used to effectively remove oil, grease, alcohol stains … The product itself is relatively safe, sodium
carbonate is used in toothpastes and as a food additive (E500). Potential Hazards are described in the section
“ Safety precautions Hazardous Chemicals ” , page 4 .
Image 2 – 7 Sodium carbonate crystals.
This cleaning procedure assumes that the filters are already removed from their slots.
Take into account that the time needed to dry the dust filters may be 24 hours or more. For that, it's
recommended to have a second set of dust filters which can be used while cleaning the first set.
Bottom filter