EuroFlow EF and EF/B
Biological Safety Cabinet
UM-EFAB-EN10.doc
80
Middle numbers are the actual values from the airspeed indicators, which are changeable with the
use of the buttons
(+) and
(-).
First and last values are the set up alarm borders (for example: Downflow DF: lowest level is 0.30
m/s, highest level is 0.44 m/s and the actual value for downflow velocity is 0.37 m/s).
The fan speed is shown in tenths of percents (0 = min. and 1000 = max.).
*
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).
