Data Sheet

Product Data Sheet 4500 N
01/31/2019 page 7 of 9
3.4 Sound Data
Measurement
conditions:
Sound pressure level: 1 meter distance between microphone and the air intake.
Sound power level: Acc. to DIN 45635 part 38 (ISO 10302)Sound power level: Acc. to DIN
45635 part 38 (ISO 10302)
Measured in a semianchoic chamber with a background noise level of Lp(A) < 5 dB(A)
For further measurement conditions see chapter aerodynamics.
a.) Operation condition:
2.550 1/min at free air flow
Frequency: 50 Hz
Optimal operating point
76,0 m3/h @ 27 Pa
Sound power level at the optimal operating
point
5,5 bel(A)
Sound pressure level at free air flow,
measured in rubber bands
45,0 dB(A)
b.) Operation condition:
3.000 1/min at free air flow
Frequency: 60 Hz
Optimal operating point
92,0 m3/h @ 30 Pa
Sound power level at the optimal operating
point
5,6 bel(A)
Sound pressure level at free air flow,
measured in rubber bands
48,0 dB(A)
4 Environment
4.1 General
Min. permitted ambient temperature TU min.
-10 °C / 50 Hz
-10 °C / 60 Hz
Max. permitted ambient temperature TU max.
55 °C / 50 Hz
65 °C / 60 Hz
Min. permitted storage temperature TL min.
-40 °C
Max. permitted storage temperature TL max.
80 °C
4.2 Climatic Requirements*)
Humidity requirements
humid heat, constant; according to DIN EN 60068-2-
78, 14 days
Water exposure
None
Dust requirements
None
Salt fog requirements
None
Permitted application area:
The product is intended for use in sheltered rooms with controlled temperature and controlled humidity. Directly
exposure to water must be avoided.
Pollution degree 1 (according DIN EN 60664-1)
There is either no pollution or it occurs only dry, non-conductive pollution. The pollution has no negative impact.