When I first started teaching automotive, I used to ask the students to name all the systems (not components) that used electrical. Today, we can buy an entry level multimeter that will do most things we need for around $50, and an amp clamp for $150. We could measure starter motor current draw, without having to disconnect the battery leads and connecting the $1000 AVR meter is series! The amp clamp cost $850 but we thought it was fantastic – so quick and so safe. I remember when our workplace purchased our first induction amp clamp. Back then, they could cost you more than a couple of weeks wages. Very few technicians had their own multimeter. And if you did want to learn about all those volts, amps and ohms, there was no internet – you actually had to go and buy a book and study. Not everyone you worked with understood even the most basic electrical principles. Wind the clock back 30 years and things were certainly very different in automotive workshops. Ross Hatton, Senior Technical Trainer at Autodata Training, explains the thinking behind his new Essential Multimeters training course. With the proliferation of electrical and electronic systems throughout modern vehicles, it’s more essential than ever for technicians to be confident in their multimeter skills.
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