14. Maintenance
14.5 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 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
). S odium carbonate (Often called
washing soda, soda crystals,orsal sod a in the detergent section of s tores) is widely u sed 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 175 .
Image 14-7
Sodium carbonate crystals.
This cleaning procedure assumes that the filters are already rem oved 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 use
d w hile clean ing 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 solution with a r atio of 3 0 gram (a ha ndful) sodium carbonate to 1 liter hot water.
2. S oak the dust filters in the s olution for 30 t o 60 m inutes. The greas e should be dissolved after 1 hour.
3. If the dust filter is still clogged repeat this procedure from step 1.
4. Rinse the dust filters with clean water to flush all grease residue away.
5. S hake out all ex cess liquid b y repeatedly swinging the filter to-and-fro in a centrifugal action.
6. T hen allow the filters to dry thoroughly. Typically this c an t ake up to 2 4h an d more, depending on the drying c onditions.
Note: Drying time of the dust filters c an be up to 24h or more. Drying time can be shorter when being done in a w ell-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 BACK INTO THE PROJEC-
TOR. THIS CAN HAV E SERIOUS SAFETY CONSEQUE NCES AS WELL AS JEOPARDIZE THE INTERNAL OP -
TICS OF THE SYSTE M.
CAUTION: Do not install/use damaged dust filters. Replace d amaged dust filters immediately with new dust
filters o f the same type. See h
ttps://m y.barco.com for replacement part
R5906753 DPXK BLP SERIES 20/11/2017 143
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