Standard Waveform

STANDARD WAVEFORM OBSERVATION CONDITIONS

Observation Conditions
FUNCTION	SPECIAL PATTERNS
Pattern height	Variable
Variable knob	Adjust while viewing the wave pattern
Pattern selector	Raster
Engine revolutions	Curb idle speed

Fig 1: Voltage At Generator Terminal Graph

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: The voltage waveform of the generator "B" terminal can undulate as shown at left. This waveform is produced when the regulator operates according to fluctuations in the generator load (current), and is normal for the generator.

If the ripple height is abnormally high (approximately 2 V or more during idling), the wires between the generator "B" terminal and the battery have broken due to fuse blowing, etc. The generator is usually operating properly.

Fig 2: Voltage Waveform

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.