Labconco Protector Work Stations 3930021 - Manual (Page 41)

Chapter 6: Maintaining Your Enclosure
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Guardian 500 Component Identification
See Figure 6-2 below.
1. Air Inlet A portion of the air coming into the enclosure passes
through the air inlet and across the flow sensors.
2. Normal Flow Indicator This green light indicates normal flow conditions.
3. Alarm Indicator This red light is activated approximately 10-30 seconds
after the low flow set point is reached. Low flow set
points are 10-20 fpm below normal flow.
4. Mute Button If no alarm is present, this button will cause the red
lamp to light and the audible alarm to sound. If an
alarm is present, the button will silence the audible
alarm.
5. Adjustment for Alarm
Set Point This potentiometer is used to set the low flow indicators
for the alarm. It is adjusted with a small screwdriver.
2
3
1
4
5
Figure 6-2
Component Identification