Inrush Current; Sound Pressure Level - Levitronix BFS-i10 User Manual

3.1.3 Inrush Current

The BFS-i10 features an inrush current limitation circuit. A peak value of 25 A with an I
measured by hot-plugging the BFS-i10 with 5 m cable length to a 1000 W power supply.

3.2 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 12 shows the sound pressure levels measured at Levitronix
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.
80
75
70
65
60
55
50
3000 3500
Figure 12: Sound pressure level vs rotational speed and measurement height
PL-3505-00, Rev02, DCO# 23-098
24 V Supply Voltage,
Released Performance
4000 4500
Note: Typical measured values of BFS-i10.1 installed in a closed duct system
®
. The fan was installed at a height of about
5000 5500 6000
Rotational Speed / rpm
User Manual for BFS-i10
www.levitronix.com
2 2
t value of 1.7 A s was
1.5 m above
ground
1.2 m above
ground
48 V Supply Voltage,
Released Performance
6500 7000 7500
12