Artesyn Centellis 2000 Shelf - DC Installation and Use (June 2014) - Manual (Page 161)

Appendix B
Centellis 2000 Shelf - DC Installation and Use (6806800G45F) 161
B
Technical Data
B.1 Acoustic Data
The following table shows the sound power levels that have been measured for various fan
settings.
The following table provides information on the sound power levels at various fan settings if
multiple chassis are installed in a rack.
Table B-1 Sound Power Level Values
Fan Setting in % of Pulse Width Modulation (PWM) Sound Power (Bel)
10 4.9
20 5.8
25 6.2
30 6.5
35 6.7
50 7.6
70 8.4
90 9.0
100 9.0
Table B-2 Multiple Chassis Sound Power Level Values
10% 20% 25% 30% 35% 50% 70% 90% 100%
1 Chassis 4.9 Bel 5.8 Bel 6.2 Bel 6.5 Bel 6.7 Bel 7.6 Bel 8.4 Bel 9.0 Bel 9.0 Bel
2 Chassis 5.2 Bel 6.1 Bel 6.5 Bel 6.8 Bel 7.0 Bel 7.9 Bel 8.7 Bel 9.3 Bel 9.3 Bel
3 Chassis 5.4 Bel 6.3 Bel 6.6 Bel 6.9 Bel 7.2 Bel 8.1 Bel 8.9 Bel 9.4 Bel 9.5 Bel
4 Chassis 5.5 Bel 6.4 Bel 6.8 Bel 7.1 Bel 7.3 Bel 8.2 Bel 9.0 Bel 9.6 Bel 9.6 Bel