Labconco Purifie Horizontal Clean Benches 3970424 - Manual (Page 38)

Chapter 6: Maintaining Your Vertical Clean Bench
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Initial Certification
The Purifier Vertical Clean Bench has been certified at the factory for an average
downflow velocity of 40-55 fpm along with the HEPA Filter Leak Test. The
Purifier Vertical Clean Bench should be certified for the proper downflow velocity
required by your Safety Officer. It is also a conservative recommendation to
perform the HEPA Filter Leak Test again should there be any damage caused
during transport.
Re-Certification
Under normal operating conditions, the Purifier Vertical Clean Bench should be
recertified at least annually. The certifier should perform the minimum following
tests:

Downflow Velocity Test

HEPA Filter Leak Test
In addition, the following tests should also be performed at the user’s discretion:

Measure of Line Voltage and Current

Smoke Test to determine proper airflow patterns

Lighting Intensity Test (when appropriate)

Noise Level Test (when appropriate)

Vibration Test (when appropriate)
Fluorescent Light Replacement
1. Disconnect the power.
2. Locate the small light reflector located under the control panel.
3. Remove the light reflector by removing two Phillips screws on the bottom
of the light reflector.
4. Rotate and remove the old fluorescent lamp.
5. Reinstall the new fluorescent lamp and light reflector in reverse order.
6. Power the unit up and try the new fluorescent lamp.
UV Light Replacement (if equipped)
1. Disconnect the power.
2. Locate the UV lamp located inside the enclosure.
3. Rotate and remove the old UV lamp.
4. Reinstall the new UV lamp.
5. Power the unit up and try the new UV lamp (UV closure panel must be
installed).