Weekly Waveform 3 - Starting system amperage

This is the third in a series of labscope activity exercises to help us pick up that labscope for a few minute a week and perform a test with it. This will be a skill building series to help new and experienced technicians become familiar with labscope operation and waveform acquisition.

If you want to follow along with the series make sure to subscribe and join the FB group. https://www.facebook.com/groups/automotiveweeklywaveforms

For this capture we are adding our first accessory, an amp clamp. For starting and charging systems your best bet is a high amp clamp because we will be exceeding the 60-80 amp limit of a low amp clamp. If you don't have a high amp clamp and still want to participate in this weeks assignment then just omit the amperage trace and include an additional trace related to the starting system.

Channel 1 - 20v - Battery positive and negative (this will be our ground reference for all channels.)
Channel 2 - 20v - I chose the B+ lead at the starter but you can chose a different test connection if you want
Channel 3 - 20v - Starter solenoid command (small wire at the starter)
Channel 4 - 500mv - High amp clamp scaling of 1amp=1milliVolt connected around battery positive or negative lead.

For 2 channel user
Channel 1 - starter solenoid command
Channel 2 - high amp clamp around battery cable

Snap-on sweep settings 100ms-200ms
PicoScope sweep settings 1s/div-2s/div this will allow 10seconds or 20 seconds of total screen time.
The links below may include affiliate link that help support the channel at no additional cost to you. Thank you.
OTC 600 amp clamp - https://amzn.to/35AVsIj
PICO 200/2000amp clamp - https://amzn.to/3dXZzSu

Видео Weekly Waveform 3 - Starting system amperage канала ThePracticalMechanic