8.1 Service on Fortuna cabinets
Service comprises the following activities:
General evaluation of the state of the cabinet.
Check and if necessary replacement of light tubes (normal and UV if mounted).
Leak test of HEPA filter.
Check and adjustment of downflow air velocity and downflow alarms.
Check of window alarm.
Check of airflow pattern using smoke.
A service test report should be issued documenting the “as left” conditions of the cabinet.
Optional test can be performed on request:
Particle test in the working chamber to determine the air quality.
Sound level test.
Light intensity test – normal light.
Light intensity test – UV light.
8.2 Working chamber lights, replacement
The general light for the working chamber consists of two fluorescent light tubes placed between the
downflow filter and the laminator at the top of the working chamber.
To remove the laminator, the two fixing screws, shown on the picture below, must be removed.
Remove the laminator located in top of the work chamber (handle with care). Release the two lamps
from the fixtures by rotating them 90º. Install the new lamps performing the inverse operation.
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