does a scope need ac mains ground?

[1jam]

I just found out, much to my surprise, that none of the outlets where I have
my oscilliscope are grounded. Would this affect performance?

 

[Jamie]

I just found out, much to my surprise, that none of the outlets where I have
my oscilliscope are grounded. Would this affect performance?

Most likely not however, I would careful about using your scope on
hot chassis.

Jamie

 

[[email protected]]

I just found out, much to my surprise, that none of the outlets where I have
my oscilliscope are grounded. Would this affect performance?

It's certainly not safe but it's not going to affect the performance.

 

[[email protected]]

And how come you have 3 prong sockets with no ground connection?

Sureley thats against any jurisdictions code in this day and age. :-?

There are exceptions (grandfathered structures with a GFCI) but they should be
marked as ungrounded.

 

[David J]

It is generally beter to float the scope (no AC mains Gnd). If you want to
test mains voltage with your scope if the probe is referenced to mains Gnd -
good by probe!!!

 

[Phil Allison]

"David Jerk"

It is generally beter to float the scope (no AC mains Gnd).

** No way - that is very dangerous for the operator.

If you want to test mains voltage with your scope if the probe is
referenced to mains Gnd - good by probe!!!

** Absolute bullshit.



.... Phil

 

[Jamie]

"David Jerk"




** No way - that is very dangerous for the operator.





** Absolute bullshit.



... Phil

look out! Two down unders going at it!


Jamie

 

[Phil Allison]

"Jamie the Radio Ham TROLL "

look out! Two down unders going at it!

** Err - what make you so sure " David J " is an Aussie?




.... Phil

 

[Chiron]

Yes who said he was from the better part of the world? He sounds like a
Yank candidate for a Darwin award to me.

"Better?" Isn't Australia where they sent all the criminals that they
didn't wind up hanging? Where they have foot-wide spiders that want to
kill you? And where God put together things from spare parts left over,
and wound up with the platypus?? I mean, they named a whole *town* after
Darwin...

Sure, we Yanks have our problems, but we're not doing so badly for a
primitive country. There is every hope that we might have civilization
here eventually.

 

[Chiron]

We only had to take convicts after you lot could not handle the job. lol
then we advanced quickly.
No death penalty, Metric measure like the better part of the world, a
debt to GDP ratio far and away better than most.

All true. Still, I refer you to this authoritative article:

http://www.theonion.com/articles/nation-trying-okay,27444/

Anyway, Australia is one of the very few places I wouldn't mind living.
All those other places have too many foreigners.

 

[Fred Abse]

It is generally beter to float the scope (no AC mains Gnd). If you want to
test mains voltage with your scope if the probe is referenced to mains Gnd -
good by probe!!!

That is extremely dangerous advice.

Especially when expressed in a public forum.

 

[[email protected]]

That is extremely dangerous advice.

Especially when expressed in a public forum.

....with the name "basics".