Labconco Protector Multi-Hazard Glove Box 5065502 - Manual (Page 12)

NORMAL OPERATION
13
Start Up
NOTE: All internal wiring is protected by two manual reset circuit breakers located on the
rear panel.
• Confirm that the glove box electrical power cord is plugged into an appropriate
electrical power source.
• Switch on the fluorescent lamp and check to make sure bulb is working.
• Connect a test light to each interior receptacle and check for proper operation by
turning on the left and right outlet switches located on the control panel.
• Turn on the blower switch and check blower operation.
NOTE: This should be done with gloves installed so that glove box negative pressure will
be induced (observed by gauge on control panel). If the blower speed control is adjusted in
the low range, you will notice that the blower starts at a higher speed, then slows down.
• If unit is vented to the outside, confirm that ducting is sealed properly for positive
pressure operation.
Blower Operation
The blower is operated on and off by a switch located on the control panel. The speed of
the blower is regulated from 10% to 100% of maximum speed. Normal operation will be in the
30% to 50% area, depending on filter loading conditions and desired negative pressure within the
enclosure. It may be necessary, during continued operation to increase the blower speed to
compensate for possible restrictions to air flow caused by a dirty filter. The static pressure setting
should be within .25 to .5 H
2
O. Pressure settings higher than this may cause excessive air flow,
and are disruptive to operations within the enclosure.