Just got a BK Precision 2831A for the bench, and...

[guitar_199]

I have a question.

As far as the meter goes I took it out and ran it through it's basic paces and it works like it should.

Then I thought about something......

I used a DMM to check continuity between the BLK banana jack and the "safety ground" on the line cord.
TOTALLY OPEN!!!!! No continuity at all.

I am interpreting THAT as being "isolated" so that I am not going to blow things up setting that ground probe in odd places to do measurement ACROSS components. Does that sound right?

If not, I can always use a DMM for that.

 

[nomadradio]

Had a boss back in the bad old days of "hot chassis" televisions. Once every year or so he would evaporate the tip of the ground clip on a 'scope probe when he touched it to the TV chassis. I would point to the isolation transformer's unused outlet and suggest he had instead plugged into the direct outlet. It was his money getting burned up to buy new 'scope probes, after all.

A battery-powered DMM is the tool of choice if there is any doubt that you're measuring an isolated circuit.

Just safer.

73