On 23 Feb 2007 16:33:13 -0800, wrote:

I mistakenly left my digital multimeter on DC when i went to test a
wall outlet, and it threw a spark and charred the tips of my
multimeter. I had always been told it would not do such a thing, even
on the wrong setting. However, I am now timid to recheck the outlet
on the AC setting. So, I used a outlet plug light indicator and it
said everything was kosher with the outlet. Can anyone tell me why
the spark?

Because the fail-safe device failed.




Tom