Barco DP2K-S Series, User And Installation Manual

Page: 115 / 153

14. Maintenance procedures
14.4 Washing and drying the dust fi lters
About fi lter washing and drying
For environments where popcorn grease and such can contaminate the fi lters, Barco advises the client to purchase one extra sets
of fi lters to cover drying time, as well as taking following extra precautions and instructions pertaining to fi lter cleaning and drying.
Cleansing agent
To clean sticky, greasy dust fi lters 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 "Hazards", page 145.
Image 14-5
Sodium carbonate crystals.
This cleaning procedure assumes that the fi lters are already removed from the projector.
Take into account that the time needed to dry the dust fi lters may be 24 hours or more. For that, it’s recom-
mended to have a second set of dust fi lters which can be used while cleaning the fi rst set.
Necessary tools
• Bucket with hot water.
• Sodium carbonate, 30 gram (handful) per liter hot water.
How to wash and dry the dust fi lters?
1. Make a solution with a ratio of 30 gram (a handful) sodium carbonate to 1 liter hot water .
2. Soak the dust fi lters in the solution for 30 to 60 minutes . The grease should be dissolved after 1 hour.
3. If the dust fi lter is still clogged repeat this procedure from step 1.
4. Rinse the dust fi lters with clean water to fl ush all grease residue away.
5. Shake out all excess liquid by repeatedly swinging the fi lter to-and-fro in a centrifugal action.
6. Then allow the fi lters to dry thoroughly . Typically this can take up to 24h and more, depending on the drying conditions.
Note: Drying time of the dust fi lters 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 fi lter(s) to dry at 50°C max in a well ventilated room.
C
AUTION
:
UNDER NO CIRCUMSTANCES SHOULD WET FILTERS BE INSTALLED BACK INTO THE PROJEC-
TOR. THIS CAN HAVE SERIOUS SAFETY CONSEQUENCES AS WELL AS JEOPARDIZE THE INTERNAL OP-
TICS OF THE SYSTEM.
C
AUTION
:
Do not install/use damaged dust fi lters. Replace damaged dust fi lters immediately with new dust
fi lters of the same type. See https://my.barco.com for replacement part
R5977692 DP2K-S SERIES 10/12/2012 111