Synrad Novanta 48 Series, Руководство пользователя, Страница: 79 / 89

CLEANING OPTICS PAGE | 79
Cleaning optics
1 Shut off and lock out all power to the laser. You must verify that the laser is OFF (in a zero-energy
state) before continuing with the optical inspection!
2 Visually inspect all optical surfaces in the beam path for contaminants.
3
Remove loose contaminants from the optic by holding a clean air bulb at an angle to the optic and
blow a stream of air at a glancing angle across the lens surface. Repeat, as necessary .
4 Dampen a lens wipe with the selected cleaning agent. Alcohol (least aggressive) is best for initial
surface cleaning. Acetone (moderately aggressive) is best for oily residue or minor baked-on
vapors and debris.
5 Gently, and without applying pressure, drag the damp lens wipe across the optical surface in a
single pass. Do not rub or apply any pressure, especially when using a cotton swab. Drag the wipe
without applying any downward pressure.
6 Carefully examine the optic under suitable lighting. Certain contaminants or damage such as pitting
cannot be removed. In these cases the optic must be replaced to prevent catastrophic failure.
7 Repeat Steps 4 through 6 as required, removing all traces of contaminants and deposits.
Important Note: If acetone is used as a cleaning solvent, a second follow-up cleaning of the optical
surface using alcohol is required to remove any acetone residue.
Use a clean lens wipe on each pass. The wipe will pick up and carry surface contaminants that may scratch
optical surfaces or coatings if reused.
Caution: Possible Equipment Damage
Do not allow the nozzle of the air bulb to touch the optical surface. Any contact may damage the
optic by scratching coatings on the optical surface.
Do not use compressed shop air to blow contamination from the optic. Compressed air contains
significant amounts of water and oil that form adsorbing films on the optical surface.
Do not exert pressure on the surface of the optic during cleaning. Optical surfaces and coatings are
easily scratched by dislodged contaminants.
Use a new lens wipe on each pass as contaminants picked up by the wipe may scratch the optical
surface.