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FAN SPEED AND AIR BLOCKAGE INDICATION
Speed 1 - 170 slpm (03-911)
[120 slpm (03-912)]
Speed 2 - 210 slpm (03-911)
[135 slpm (03-912)]
Speed 3 - 240 slpm (03-911)
[150 slpm (03-912)]
FIGURE 6.5
Speed Settings: Cycle through the 3 speed
settings by pressing the power button. Each
button press will advance through these speed
settings.
OPERATION LEGEND
Speed ~ 170 slpm (03-911)
120 slpm (03-912)
Normal - Speed 1
Mild Blockage - Speed 1
Moderate Blockage - Speed 1
Heavy Blockage - Speed 1
Blocked - Speed 1
cannot be achieved
FIGURE 6.6
The blue lights indicate the selected fan speed. The red lights indicate the level of blockage. When
the lights flash red and blue, the selected fan speed cannot be reached, but sufficient air supply
(170slpm 03-911, 120slpm 03-912) can still be reached. When 3 lights flash red, the alarm will
sound indicating insufficient air supply is being produced. Return to a safe environment and check
the filter and/or the airway for blockage. If the filter is contaminated, replace with a new cartridge.
Speed ~ 210 slpm (03-911)
135 slpm (03-912)
Normal - Speed 2
Mild Blockage - Speed 2
Moderate Blockage - Speed 2
Heavy Blockage - Speed 2
cannot be achieved
Blocked - Speed 1
cannot be achieved
Speed ~ 240 slpm (03-911)
150 slpm (03-912)
Normal - Speed 3
Mild Blockage - Speed 3
Moderate Blockage - Speed 3
cannot be achieved
Heavy Blockage - Speed 2
cannot be achieved
Blocked - Speed 1
cannot be achieved
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