Labconco PURICARE Procedure Station Models 34812xx - Manual (Page 77)

Page 77 of 197
Figure 5-16a & b
The Sensor Distance, as described in Table 5-4,
using the slots cut in the 6-foot template.
4.00-inch mark
3.25-inch mark
The Sensor Distance, as described in Table 5-4,
using a scale.
Table 5-4
Secondary Inflow Test Specifications
Model 34308 34300 34408 34400 34508 34500 34608 34600
Restricted Sash Opening
(inches) 4
4 4 3 3 2.25 2.25 4.25 4.25
Sensor distance (inches) 5 4 4 3.25 3.25 3.25 3.25 4 4
# of Test points 6 6 8 8 10 10 12 12
Test point location * * * * * * * *
Nominal Avg. Inflow Vel.
(FPM)
213 266 283 354 353 441 231 289
Avg. Inflow Vel. Range
(FPM)
203-223 253-278 269-296 337-371 336-370 420-462 220-242 275-302
Correction Factor (CF) 1 1 1 1 0.96 1 1.83 1.83
Average Inflow Volume
Range (AIV) (Avg. velocity
x CF)
203-223 253-278 269-296 337-371 336-370 420-462 403-443 503-553
Sash Open Area (Sq. Ft) 2.03 2.53 2.69 3.37 3.36 4.2 4.03 5.03
Inflow Velocity Range
(AIV / Sash open area) 100-110 100-110 100-110 100-110 100-110 100-110 100-110 100-110
1. Locate the single row of holes at the front of the grille. Mark the 6 th hole from
the side wall and subsequent test points every 9 holes until the number of test
points marked equals the width of the cabinet in feet (for a 3-foot cabinet, for
example, mark the first 3 points). Repeat for the opposite side, as shown in
Figure 5-17.
2. Start the Purifier, and let it operate for at least 5 minutes. Establish the
necessary correction factor to the thermal anemometer to ensure compliance
with its performance in a calibrated wind tunnel. This data should be available
from the calibrator of the thermal anemometer.