ARMASIGHT by FLIR
BNVD
ARMASIGHT by FLIR
BNVD
U S E R M A N U A L
12
SECTION 4. MAINTENANCE
4.1 BATTERY REMOVAL AND
REPLACEMENT
Refer to Part 2.2 for battery installation procedures.
4.2 CLEANING THE BNVD
Wipe the housing with a damp cloth as needed.
CAUTION:
Do not use abrasives or solvents to clean the housing, lens,
or display window. Do not use ammonia-based cleaning products to
clean the lens. Doing so may damage the anti-reflective coating of the
lens.
The BNVD lens is designed for the harsh outdoor environment and has
a coating for durability and anti-reflection, but it may require cleaning
occasionally. Avoid scratching the lens and/or leaving fingerprints on
the optics. Optics can be damaged by improper cleaning. Clean the lens
according to the instructions below when image quality degradation is
noticed or excessive dirt or other contaminant is on the lens.
Do not use abrasive materials, such as paper or scrub brushes as this
will possibly damage the lens by scratching it. Only wipe the lens clean
when there is visible contamination on the surface.
PREFERRED METHOD FOR CLEANING THE LENS
Materials:
• Optical-grade cloth
• Pure water (de-ionized or other)
• Isopropyl alcohol (IPA)
Saturate a piece of the lens tissue with the water and drape it over
the lens. Let the surface tension of the water pull the tissue onto the
lens surface and then drag the tissue across the lens surface. Repeat
several times with different pieces of tissue.
Repeat the same step using IPA instead of water. Drag the final piece
of tissue over the lens several times to prevent pooling, which could
leave a residue behind.
