Newbie's and Multi Meters
Just picked up that EXACT MM today... 19 something with taxes, regular 60 bucks! 
lol
10-31-2006, 08:30 PM
#23
50 Watt CAFz'r
Join Date: Sep 2006
Posts: 80
Originally Posted by Smartass
Not a bad little unit eh? 
Steal of a deal... 20 bucks...
11-02-2006, 04:14 PM
#24
A MM used incorrectly can be a bad thing, and it can happen with only 12 volts. A car battery can put out 600-1000 amps.
If the meter is set to measure amps when you meant to measure volts, poof, no more meter. Good meters have fuses to prevent this, cheap ones don't.
Here at work, one of our guys got into a 600volt breaker box for the air conditioner and did just that. He couldn't see well enough, meter on the wrong scale. The meter blew up, the leads evalorated, but that wasn't the big problem. The big spark caused an arc between the 3 phase 600 volt leads, on the input side of the fuse, and the connectors on the panel and the wire evaporated.
Harold was lucky he wore glasses, saved his eyes. Burnt the skin off his whole face and both hands. That was just from the spark, he didn't even get a shock.
If the meter is set to measure amps when you meant to measure volts, poof, no more meter. Good meters have fuses to prevent this, cheap ones don't.
Here at work, one of our guys got into a 600volt breaker box for the air conditioner and did just that. He couldn't see well enough, meter on the wrong scale. The meter blew up, the leads evalorated, but that wasn't the big problem. The big spark caused an arc between the 3 phase 600 volt leads, on the input side of the fuse, and the connectors on the panel and the wire evaporated.
Harold was lucky he wore glasses, saved his eyes. Burnt the skin off his whole face and both hands. That was just from the spark, he didn't even get a shock.
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