Hypertherm LH2100 - Manual (Page 40)

0
OPERATION
LH2125/LH2100 Laser Head Instruction Manual 4-13
Clean lens
Always check with the manufacturer of the component to determine proper care and cleaning methods. Damage can
occur to polished surfaces or specialized coatings if improper cleaning methods are used.
– Hold the lens by its edges even when it is in a holder.
– Never touch the lens surface with bare fingers: fingerprints on a coated lens surface can cause staining or
damage and should be cleaned off immediately.
The following are general guidelines. Specific cases can and will vary.
Materials used for cleaning most optical components: pressurized gas (filtered dry nitrogen), lint-free lens tissue, mild
soap, lint-free cotton swabs, lint or powder-free gloves and an organic solvent, such as reagent-grade isopropyl alcohol,
reagent-grade acetone, or lens cleaning solution.
Dust is the most common contaminant and can usually be removed with clean pressurized gas. Particles of dirt should
also be removed with pressurized gas, because particles trapped between the cleaning cloth and the lens can scratch
the lens surface.
If further cleaning is necessary, hold the lens by its edges and apply a few drops of reagent-grade acetone or lens
cleaning solution. Apply pressure at the center of the lens and move the cloth in a circular motion toward the outer edge.
If the lens is still dirty after using the cleaning agent, wash the lens gently with a mild soap solution. Repeat the
procedure with acetone or lens cleaner to eliminate streaks and soap residue.