EuroFlow EF and EF/B
Biological Safety Cabinet
UM-EFAB-EN10.doc
77
Figure 40 Side view for measuring level inflow
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Measuring probe
Figure 41 Measuring points inflow
(H = Height, B = Broad)
*
1
The average inflow velocity at the top of the front aperture is measured and can be read in the display. The minimal required value
of the average inflow velocity measured at the top of the front aperture is given in chapter 9.2 on page 61. Measuring these most
critical measured values directly under the window ensures that the overall average inflow velocity is according to the guidelines of the
EN12469:2000 (Annex H table H1 Mean inflow velocity to achieve operator protection > 0,4 m/s).
Figure 42 Side view for measuring level downflow
Figure 43 Measuring points downflow
(W = Width, D = Depth)
