Inflow velocity calculation - primary method – Labconco PURICARE Procedure Station Models 34812xx User Manual
Page 92
Page 92 of 197
Figure 6-8
Acceptance
Average downflow shall be 55 +/-5 FPM with all test points being within +/- 16 FPM.
Inflow Velocity Calculation - Primary Method
Note: The dress panel MUST be installed on the cabinet to obtain an accurate inflow
value.
The average inflow velocity for all Logics is 105 ±5 FPM, and should be determined by
converting the inflow volume to the average inflow velocity. The inflow volume is
measured directly by sealing a direct inflow measuring (DIM) flowmeter to the face of
the unit. When corrected for local conditions, dividing the inflow volume by the opening
area will yield the average inflow velocity.
Table 6-4
Inflow Test Specifications
Model 34410
34610
Nominal Average Inflow
(FPM)
105+/-5 105+/-5
Sash Open Area (Sq. Ft)
2.69
4.03
Nominal Avg. Exhaust Vol.
(CFM)
283 423
Avg. Exhaust Vol. Range
(CFM)
269-296 403-443
Acceptance
Average inflow shall be 105 +/-5 FPM.
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