Qiagen DML 3000, User Manual

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Maintenance
7-8 DML 3000 User Manual
CAUTION Damage to the instrument
Do not touch the bottom surface of the optical head while removing the mask.
Place your fingers on both sides of the optical head, grasp the optical mask, and
gently pull the optical mask toward you to remove it.
Example of removing the optical mask:
Clean the optical mask and optical mask retainer with a low-lint paper towel
moistened with 70% isopropyl alcohol.
Notes :
If heavy reagent residue is present, the optical mask and optical mask retainer
may be soaked for 30 minutes in 70% isopropyl alcohol to dissolve the
reagent residue.
Some abrasion marks may be on the underside of the optical mask. This is
normal. The optical mask is lightly spring loaded and contacts the plate mask
and black metal shelf during normal operation.
Rinse the optical mask and optical mask retainer with deionized or distilled water.
Allow the optical mask and optical mask retainer to air dry completely before
returning to the instrument.