Datasheet

Product Data Sheet RET97-25/18/2TDP
01/31/2019 page 11 of 15
3.6 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:
6.000 1/min at free air
flow
PWM 100 %;
Optimal operating point 133,0 m3/h @ 595 Pa
Sound power level at the optimal operating
point
7,9 bel(A)
Sound pressure level at free air flow,
measured in rubber bands
at free air flow
at free air flow
4 Environment
4.1 General
Min. permitted ambient temperature TU min. -20 °C
Max. permitted ambient temperature TU max. 60 °C
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.
4.3 Mechanical Requirements
severity level
Vibration (sinusoidal)
2 G Vibration (sinusoidal) in use
IEC 60068-2-6
Displacement / frequency range
Acceleration / frequency range
Vibration (sinusoidal)
0,15 mm / 10-58, 58-10 Hz
2 G / 58-500-58 Hz