Labconco Protector Controlled Atmosphere Glove Box - Manual (Page 38)

Chapter 5: Using Your Glove Box
Product Service 1-800-522-7658 34
• Objects in contact with previously contaminated internal atmospheres
must be surface decontaminated or bagged before removal from the
glove box through the transfer chamber.
• After placing materials to be removed in the transfer chamber and
locking the internal door, the transfer chamber must be evacuated and
filled approximately 1-5 times depending on vacuum level achieved.
This ensures the removal of any remaining airborne contaminants
before the outer door is opened. Never apply a high vacuum purge on
sensitive electronic moisture and oxygen monitors. The exact number
of cycles should be determined by your Safety Officer.
Shutdown
• To help preserve the controlled atmosphere, leave the glove box main
chamber under slight pressure differences and continuously run the
AtmosPure Re-Gen Gas Purifier. The use of the accessory external
glove port covers can assist in preserving the inert atmosphere.
• Keep the outer door closed when not in use.
Hazardous Use with Chemicals
Hazardous chemicals may be used safely only when the glove box
vacuum pump and pressure relief bubbler are both properly vented
and/or filtered to the outside. Consult your Safety Officer for proper
venting and filtering of the vacuum pump exhaust and the pressure relief
valve for your application.
Prohibited Acid Use
On stainless steel models, the glove box interior must not be exposed to
mineral acid use. The glove box life span will be limited with use of mineral
acids.
NOTE: Labconco makes no claims about corrosion resistance of the
glove box with mineral acid use and warranties will become
void.
Auto Pressure Controller Operation
The Auto Pressure Controller performs three automatic modes on the glove
box. First, it cycles the evacuating/filling process in the main glove box
chamber up to 499 cycles and in the transfer chamber up to 199 cycles.
Second, it regulates vacuum/pressure between -5 and +5 inches of water
gauge in the main glove box chamber through the glove box pressure control
program mode. Third, it regulates vacuum in the transfer chamber between 0
and -29 inches of mercury during the evacuating/filling process.