Datasheet

Product Data Sheet 3252 JH
02/01/2019 page 7 of 10
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)
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:
4.100 1/min at free air flow
Optimal operating point 100,0 m3/h @ 44 Pa
Sound power level at the optimal operating
point
5,8 bel(A)
Sound pressure level at free air flow,
measured in rubber bands
46,0 dB(A)
4 Environment
4.1 General
Min. permitted ambient temperature TU min. -20 °C
Max. permitted ambient temperature TU max. 70 °C
Min. permitted storage temperature TL min. -40 °C
Max. permitted storage temperature TL max. 85 °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.
4.3 Mechanical Requirements
severity level
stationary use
1 storage /
transportation
Random vibration not in use
IEC 60068-2-64
Frequency range / ASD
G
RMS
Axes of vibration
Test duration
Random vibration
5 - 20 Hz : 1,0 m² / s³
20 - 500 Hz : - 3 dB / Oct
0,91 G
3
3 x 5 h