
6-2
SOUND LEVEL CHARACTERISTICS
SM WDIDCI 1-A.2 GB
Dakota 12 Dakota 18
FAN SPEED LINE
HI
ME
LO
Hz, AND CE TER FREQUENC ES
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
-70NC
-60NC
-50NC
-40NC
-30NC
-20NC
MICRO AR0. 02 dB re , OCT VE BAN S UN PRES URE L VEL
Hz, AND CE TER FREQUENC ES
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
-70NC
-60NC
-50NC
-40NC
-30NC
-20NC
MICRO AR0. 02 dB re , OCT VE BAN S UN PRES URE L VEL
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