Labconco 3940200 User Manual - Safety Precautions

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Chapter 4: High Performance Features and Safety

Safety Precautions 

1.  Although the enclosure has been engineered to maintain 

optimum operator safety, caution should always be used 

while working.  Prior to using the enclosure, check to make 

sure that the exhaust blower is operating and that air is 

entering the enclosure at its specified face velocity.  The 

use of an airflow monitor is recommended to alert the user 

to a problem with airflow. 

2.  Use good housekeeping in the enclosure at all times.  Clean 

up spills immediately.  Periodically clean enclosure 

interior. 

3.  Do not overload the work surface with apparatus or work 

material.  The safe operation of the enclosure is based upon 

having proper airflow through the structure.  Do not place 

large objects directly on the work surface.  Instead, elevate 

the object 3/4" on blocks to allow a flow of air under the 

object and into the rear baffle exhaust slots.  Ensure blocks 

are level and secured in place. 

4.  Blocking large portions of the rear baffle will change the 

airflow pattern in the enclosure causing turbulence.  (Do 

not store containers or supplies against the rear baffle, as 

this will affect airflow). 

5.  Always work with your hands as far back into the enclosure 

as possible.  Keep all powders, chemicals and apparatus 

inside the lower air foil of the enclosure. 

6.  Do not work in this enclosure without the exhaust system 

running.   

7.  Perchloric acid use in this enclosure is prohibited. 

8.  High-level radioisotope materials are prohibited in this 

enclosure.  Consult your Safety Officer. 

9.  Avoid cross drafts and limit traffic in front of the enclosure.  

Air disturbances created may draw contaminants out of the 

enclosure. 

10. A qualified certification technician should test the 

enclosure before it is initially used.  The enclosure should 

be validated whenever it is relocated. 

11. The use of safety goggles, protective clothing, gloves and 

any other personal protective equipment recommended by 

your safety officer should be used.