Wave Pattern Check Using an Analyzer

MEASUREMENT METHOD
Connect the analyzer special patterns pick-up to the generator "B" terminal.

STANDARD WAVEFORM




Observation Conditions






NOTE: Furthermore, 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.




ABNORMAL WAVEFORMS EXAMPLES

NOTE:
1. The size of the waveform patterns differs largely depending on the adjustment of the variable knob on the analyzer.
2. Identification of abnormal waveforms is easier when there is a large output current (regulator is not operating). (Waveforms can be observed when the headlights are illuminated.)
3. Check the conditions of the charge light (illuminated/not illuminated) also, and carry out a total check.