HomeMy WebLinkAboutFile Documents.112 Falcon Rd.0120-2023-BRES (3)Sound data
C125 N6 60 Hz
Cummins Inc. Data and specification subject to change without notice MSP-1304
(1/19)
Sound pressure level @ 7 meters, dB(A)
See notes 1-6 listed below
Configuration
Position (note 1) 8
Position
average 1 2 3 4 5 6 7 8
Standard – unhoused Infinite
exhaust 77.0 79.7 77.3 79.6 76.1 79.9 78.2 79.6 78.6
Mounted F231-2 sound attenuated level
1 enclosure, aluminium
Mounted
76.6 72.8 70.9 70.3 70.8 70.8 69.8 73.3 72.5
F217-2 sound attenuated
level 2 enclosure, aluminium 72.5 70.0 69.4 68.8 69.8 69.6 67.7 70.2 71.0
Exhaust sound power level, dB(A)
See note 2 and 9 listed below
Open exhaust
(no muffler) @
rated load
Octave band center frequency (Hz) Overall sound
power level 31.5 63 125 250 500 1000 2000 4000 8000
43.9 70.0 78.3 89.9 89.9 99.6 97.1 96.6 97.0 104.5
Note:
1.Position 1 faces the generator front per ISO 8528-10. The positions proceed around the generator set in a counter-clockwise
direction in 45° increments. All positions are at 7 m (23 ft) from the surface of the generator set and 1.2 m (48 in) from floor level.
2.Sound levels are subject to instrumentation, measurement, installation and manufacturing variability.
3.Data based on full rated load.
4.Sound data for generator set with infinite exhaust do not include exhaust noise.
5.Sound pressure levels are measured per ANSI S1.13 and ANSI S12.18, as applicable.
6.Reference sound pressure is 20 μPa.
7.Sound power levels per ISO 3744 and ISO 8528-10, as applicable.
8.Reference power = 1 pw (10-12 W).
9.Exhaust sound power levels are per ISO 6798, as applicable.
F217-3SP sound attenuated
level 3 enclosure, aluminium 49.8 49.7 49.6 49.0 49.2 49.1 47.7 49.6 49.3Mounted
07/13/2022