12
Setup Procedure
Why Ground Hookup Is Important
• Connecting a good ground point is important for obtaining clean
waveforms.
• For most vehicle signals, the battery negative terminal or the engine
block will provide a clean ground.
• A bad ground, such as the vehicle chassis, may add false noise
to the signal.
The same O2 sensor signal with the Ground Cable connected in two different places:
ZOOM
CH-1
T=400 mS
V1= 500mV
ZOOM
CH-1
T=400 mS
V1= 300mV
Good Ground
Bad Ground
Summary of Contents for AUTO WAVE II
Page 1: ...USER GUIDE...
