SEKURE SX-3100LCD Betreibershandbuch Seite 23

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DIAGNOSTIC TOOLSET DESCRIPTION 11
NVH ANALYZER DIAGNOSTIC CAPABILITIES
The Noise, Vibration, and Harshness (NVH) Analyzer assists in isolating the cause of
noise and vibration problems. The frequency of the noise or vibration is electronically
matched with vehicle RPM and speed in order to help diagnose the source of the vibration
or noise.
The NVH Analyzer should be used in a stable vibration and noise environment.
When connected to the Tester, the NVH Analyzer and related Accelerometer and
microphone can:
Display Barchart graphs of vibration levels for wheels, engine, and drivetrain.
Display recorded vibrations over time in a “Raster” format (3-D).
Display and store spectral analysis of vibration or noise data from 5 Hz to 500 Hz.
Detect vibrations from .001G to 1G.
Display and store dynamic vehicle data (RPM, vehicle speed) integrated with the
corresponding spectral vibration data.
Separate and classify vibration energy by source (Engine, Driveline, Wheels) and
display in the Spectral, Raster, and Barchart display modes.
The NVH Analyzer diagnoses data received from the following sources:
Vibration data using the Accelerometer or microphone sensor inputs
The vehicle serial data stream or ignition signal
Vehicle data base information
Operator input
NVH Analyzer hardware components are described in Section 4.0 NVH Analyzer Kit
Components on page 27.
CAUTION
CAUTION!
Two technicians are required when testing with the NVH
Analyzer. One technician must actually drive the car, and the
second technician operates the NVH Analyzer. For safety
reasons, one technician cannot perform all functions.
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