Labconco PURICARE Procedure Station Models 34812xx - Manual (Page 66)

Page 66 of 197
Table 5-1
HEPA Filter Leak Test Specifications
Model 34308 34300 34408 34400 34508 34500 34608 34600
Air Displacement (CFM) 543 596 723 794 903 991 1083 1189
Laskin Nozzles needed 1 1 2 2 2 2 2 2
Calculated aerosol conc.
(ug/l)
1
25 23 38 34 30 27 25 23
Actual aerosol conc. (ug/l)
2
14 12 21 18 17 15 17 15
Nominal Speed Control
Setting
50-60 55-65 65-75 75-85 75-85 80-90 65-75 75-85
1. The calculated concentration was established by the formula:
Concentration (ug/l) = (# Laskin nozzles @ 20 PSIG x 13,500)/Volume of air displaced
2. Based on Mineral oil
1. Turn on the photometer and allow it to operate for a minimum of 5 minutes.
Leave the valve in the “CLEAR” setting.
2. Check the oil level of the generator – it must be within 1/8” of the level line
when the generator is sitting level.
3. Establish the 100% and 0% concentration levels for the photometer.
Removing the Exhaust HEPA Filter Cover
On Models Manufactured prior to April 2009 –
4. Remove the exhaust HEPA filter cover by lifting and compressing the cover until
its tabs are clear of the exhaust filter bracket, as shown in Figure 5-2.
Figure 5-2
Lift the center of the cover up while
compressing the cover.
Cover tabs in bracket slots