Labconco Total Exhaust Biological Safety Cabinets 34368 Series - Manual (Page 46)

Chapter 5: Using The Cabinet
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Original instructions
4. When the timer reaches 0:00:00, an audible alarm will sound, and the
timer will reset itself and repeat the countdown.
5. Press the OK button to pause the timer.
6. Press the Menu button to clear the interval timer and return to the
main timer menu.
Stopwatch Timer Operation
1. When selected, the Stopwatch Timer menu is displayed on the LCD.
The timer defaults to 0:00:00.
2. Press the OK button to start the timer.
3. Press the OK button again to zero the timer.
4. Press the Menu button to clear the stopwatch timer and return to the
main timer menu.
If An Airflow Alert Activates
The most common causes of an Airflow Alert are:
• Blockage of the inlet grilles or exhaust outlet.
• Removal of the work surface or grille during operation.
Resetting the Airflow Alert System
The Airflow Alert automatically resets to normal operation once the motor
speed has stabilized.
Working In the Biosafety Cabinet
Note: A more thorough review of using the BSC can be found in: Biosafety
in Microbiological and Biomedical Laboratories (BMBL), Published
by the Centers for Disease Control and Prevention
(
www.cdc.gov/biosafety/publications ).
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.