Arjo Tornado - Protection Class; Sound Level; Estimated Sound Level

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5.6 Protection class
FD1800, FD1810 FD1805
Pollution Degree 2 2
Overvoltage category II II
Protection class IP22 (standard)
IP24 (option)
IP21
Max altitude* 2000m above sea level 2000m above sea level
* Maximum height above sea level to use the machine.
5.7 Sound level
5.7.1 Estimated sound level
Calculated sound power level L
w
for the test object, dB ref 1 pW, is
shown in the tables below.
The sound output level is reported as the linear octave band
values and as co-weighted, A-weighted sound output level, both
equivalent L
wA
and maximum L
wAFmax
.
Octave band frequency (Hz) Sound output level
125 57
250 64
500 57
1000 55
2000 53
4000 50
8000 48
A-weight level. Sound output level
L
wA
61
Lw
AFmax
75