Levitronix BFS-i10, User Manual

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User Manual for BFS-i10
www.levitronix.com
PL-3505-00, Rev00, DCO# 21-249
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Figure 12: Examples of mounting with through holes (left) and self-cutting thread inserts (right)
3.3 Sound Pressure Level
The sound pressure level emitted by the BFS-i10 depends strongly on the installation, operating point, and
rotational speed. It is recommended that customers measure the sound pressure level after installation of the
fan in their setup during typical operation.
Figure 13 shows the sound pressure levels measured at Levitronix
®
. The fan was installed at a height of about
2 m above ground into a closed duct system. Measurements were taken based on Semi S2 guidelines, i.e.
1 m traversed from the setup at a height of 1.2 m and 1.5 m above ground.
Figure 13: Sound pressure level vs rotational speed and measurement height
Typical measured values of BFS-i10.1 installed in a closed duct system
50
55
60
65
70
75
80
3000 3500 4000 4500 5000 5500 6000 6500 7000 7500
S
ou
nd
P
res
s
ure
Le
v
el
/ d
B
A
Rotational Speed / rpm
48 V Supply Voltage,
Released Performance 24 V Supply Voltage,
Released Performance
1.5 m above
ground
1.2 m above
ground