229 SLF

DAIMLER CHRYSLER COMMERCIAL BUSES NA Pdf Download PDF Report

Exterior Noise Test

Stationary

Date : 2004-05-14
Personnel : R.C., T.S. and S.C.
Temperature (°F) : 73 Humidity (%) : 51
Wind Speed (mph) : calm Wind Direction : calm
Barometric Pressure (in.Hg) : 30.18
Verify that microphone height is 4 feet, wind speed is less than 12 mpg and ambient temperature is between 30 F and 90 F: true checked by S.C.
Initial Sound Level Meter Calibration: true checked by S.C.
Exterior Ambient Noise Level dB(A): 44.1

Accessories and Air Conditioning ON
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 775 62.9 62.9
High Idle 1088 63.5 66.2
Wide Open Throttle 2670 80.9 86.9

Accessories and Air Conditioning OFF
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 800 59.3 61.8
High Idle 1105 63.2 65.2
Wide Open Throttle 2675 81.6 86.7