14. Maintenance procedures
14.4 Washing and drying the dust filters
About filter washing and drying
For environments where popcorn grease and such can contaminate the filters, B arco advises the client to purchase one extra set
of filters to cover d rying time, as well as taking following extra precautions and instructions pertaining to filter cleaning and drying.
Cleansing agent
To clean sticky, g reasy dust filters we suggest usage of Sodium carbonate crystals (Na
2
CO
3
). Sodium carbonate (Often called
washing soda, soda crystals,orsal soda in the detergent s ection 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 "Hazards", page 165 .
Image 14-5
Sodium carbonate crystals.
This cleaning procedure assumes that the filters are already removed from their slots.
Take into acco unt that the time needed to dry the dust filters may b e 24 h ours o r more. For that, it’s recom-
mended to have a second set of dust filters which can be u se
d wh ile cleaning the first set.
Necessary tools
• Bucket with hot water.
• Sodium carbonate, 30 gram (handful) per liter hot water.
How to wash and dry the dust filters?
1. Make a s olution with a ratio of 3 0 gram (a handful) sodium carbonate to 1 liter hot water.
2. Soak the dust filters in the s olution for 30 t o 60 m inutes. The grease should be dissolved after 1 hour.
3. If the dust filter is s till clogged repeat this procedure from step 1.
4. Rinse the dust filters with clean water to flush all grease residue away.
5. Shake out all excess liquid by repeatedly sw inging the filter to-and-fro in a centrifugal action.
6. Then allow the filters to dry thoroughly. Typically this can take up to 24h an d m ore, depending on the drying conditions.
Note: Drying time of the dust filters can be up to 24h or more. Drying time can be shorter when being done in a well-ventilated
area.
Tip: To speed-up drying, allow the filter(s ) to
dry at 50°C max in a well ventilated room.
CAUTION: UNDER NO CIRCUMSTANCES SHOULD WET FILTERS BE INSTALLED B ACK INTO THE PROJEC-
TOR. THIS CAN HAV E SERIOUS SAFETY CONSEQUE NCES AS WELL AS JEOPARDIZE THE INTERNAL OP -
TICS OF THE SYSTEM.
CAUTION: Do not install/use damaged dust filters. Replace damag ed dust filters immediately with new dust
filters o f the same type. S ee h
ttps://my.barco.com for replacement part
R5906847 DP2K SLP SERIES 02/06/2017 127
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