Hello. I'm looking for help in setting up the correct parameters to connect voltage leads to channel 1 and a Hantek CC-650 amperage clamp to channel 2 using an OWON HDS2202S Handheld oscilloscope to perform a 12 volt alternator ripple test. I did a trial run after a lot of reading but the sine wave was very erratic and I was unable to discern voltage above and below the mean as there were no voltage numbers along the Y-axis lines. Any help or direction would be appreciated. I have a good knowledge of electrical systems and some electronics.
regards,
Donald