Synrad p250, User Manual, Page: 91 / 106

REQUIRED CLEANING MATERIALS PAGE | 91
Required cleaning materials
The table below lists the type and grade of materials required to properly clean optical surfaces.
Table 5-1 Required cleaning materials.
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 sur-face 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. Use a clean lens wipe on each pass. The wipe will
pick up and carry surface contaminants that may scratch optical surfaces or coatings.
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.