Barco Njord, User Manual

Page: 60 / 72

R5913592 / Njord 60
8.1 Cleaning the lens
To minimize the possibility of damage to optical coatings, or scratches to lens surfaces follow the
cleaning procedure as described here precisely.
Required tools
• Compressed air
• Clean micro fiber lens cleaning cloth (e.g. Toraysee® cloth(s))
• Clean cotton cloth
• Lens cleaner (e.g. ZEISS lens cleaner, Purosol ™ or other water based lens cleaner products)
How to clean the lens?
1. Blow off dust with clean compressed air (or pressurized air cans 1 ) .
2. Clean with lens cleaner together with a clean lens cleaning cloth to remove the dust and contamination.
Use big wipes in one single direction.
Warning: Do not wipe back and forwards across the lens surface as this tends to grind dirt into
the coating.
3. Use a dry lens cleaning cloth to remove left liquid or stripes. Polish with small circles.
4. If there are still fingerprints on the surface, wipe them off with lens cleaner together with a clean lens
cleaning cloth. Polish again with a dry one.
If smears occur when cleaning lenses, replace the cloth. Smears are the first indication of a dirty
cloth.
8.2 Cleaning the exterior of the projector
How to clean the exterior of the projector ?
1. Switch off the projector and unplug the projector from the mains power net.
2. Clean the housing of the projector with a damp cloth. Stubborn stains may be removed with a cloth lightly
dampened with a mild detergent solution.
Product maintenance
1. Pressurized air cans are not efficient if there is too much dust on the surface, the pressure is too low