SEKURE SX-3100LCD Manual do Operador descarregar pdf (Página 218)

206 NVH

A-WEIGHTED MODE

The A-weighted mode is used in the noise function and reflects the sound perception of

the human ear. The frequency response at lower frequencies is greatly attenuated. The left

red LED is lighted when A-weighting is selected. (Requires optional microphone.)

NO DATA

<NO DATA> is displayed for the <RPM> and <MPH/KPH> if the NVH Analyzer cannot

process vehicle data. When <NO DATA> is displayed, verify that all vehicle connections

are secure prior to the vehicle selection process.

SCALING FACTOR FOR VIBRATION TESTING

The Scaling Factor is used to maximize the bar height in Barchart in relation to the

available screen height. Default is set to 60 dBg which means that bars calculated to be 60

dBg or higher use the full available bar height. Vibration amplitudes less than 60 dBg are

proportionally sized on the screen. The Scaling Factor has a range from 10 dBg to 120

dBg. Scaling Factor may be adjusted by pressing u to increase bar height or d to

decrease bar height. The Scaling Factor cannot be changed while in the PAUSE mode.

CALCULATED SPEED

If an asterisk (*) is displayed between the <MPH/KPH> indicator and the actual displayed

vehicle speed, vehicle speed has been calculated from certain vehicle parameters and

could differ from current vehicle speedometer reading if:

• an incorrect gear has been selected.

• the transmission is not in lock up.

When RPM falls below 1600 RPM, vehicle speed is not displayed and component

identifiers are turned off.

AVERAGE MODE

The default data processing mode of the system averages the previous 5 data samples and

displays the result on the screen.

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SEKURE SX-3100LCD Manual do Operador Página 218