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Old 01-22-2019, 04:16 PM   #27
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Join Date: Jul 2011
City & State: Sunny Jacksonville FL
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Default Re: What do you think about this meter Feedback need

Originally Posted by stj View Post
if you put a standard meter on a car supply, it will say 12-14v
but if you put a meter with a waveform display you can see if the alternator is failing because you can see the dips between the 3 phases.
In other words it would show you that you one or more diodes failing which would be very helpful determining if that was causing your battery to drain over night

But in general the output of an alternator is very noisy to being with any way but the wave form output would be different
9 PC LCD Monitor
6 LCD Flat Screen TV
30 Desk Top Switching Power Supply
10 Battery Charger Switching Power Supply for Power Tool
6 18v Lithium Battery Power Boards for Tool Battery Packs
1 XBox 360 Switching Power Supply and M Board
25 Servo Drives 220/460 3 Phase
6 De-soldering Station Switching Power Supply 1 Power Supply
1 Dell Mother Board
15 Computer Power Supply
1 HP Printer Supply & Control Board * lighting finished it *

These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
2 Hem Saw Computer Stack Board

All of these had CAPs POOF
All of the mosfet that are taken out by bad caps

Last edited by sam_sam_sam; 01-22-2019 at 04:22 PM..
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