Labconco Biological Safety Cabinets 34610 Series - Manual (Page 44)

Chapter 5: Using The Cabinet
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If An Exhaust Error Activates
The most common causes of an Exhaust Error are:
• Exhaust blower is turned off or has lost power.
• Excessive loading of the Exhaust HEPA filter.
• Leakage in the exhaust system.
• Sudden change in room pressure.
When an Exhaust Error is activated, the Logic can be reset by pressing the
“Blower” button. The unit will restart and run for 15 seconds, and then will
recheck the airflow. If the airflow is still insufficient, the unit will again
show and Exhaust Error alarm.
NOTE: If the Exhaust Error sounds during use, take appropriate action to
prevent contamination of you and others in the area.
NOTE: If the cabinet keeps reporting Exhaust Error, do not use the cabinet
until the problem has been corrected.
If An Airflow Alert Activates
The most common cause of an Airflow Alert is:
• Blockage of the prefilter.
Resetting the Airflow Alert System
The Airflow Alert automatically resets to normal operation once the motor
speed has stabilized.
Working In the Biosafety Cabinet
Planning
• Thoroughly understand procedures and equipment required before
beginning work.
• Arrange for minimal disruptions, such as room traffic or entry into the
room while the cabinet is in use.