Products > Test Equipment
REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol
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alank2:
So guys, I'm thinking about possibly getting a DS2072 someday - my question is what is the deal with the demo features?  It comes with all of them enabled for a period of time?  How long?
marmad:

--- Quote from: g2 on June 08, 2013, 08:22:36 pm ---I have had a Rigol DS2072 and I Got An Electric Shock from it.
I was using  a 2 wire extension cord without ground (earth).
 I found out when Rigol DS2072 is not grounded, there is 115 volt on  Chassis ground,
and independently  of the switch are On or Off.
Is it only my Rigol DS2072 that  is defective ?
How are other digital oscilloscopes ?
Do I have  to  change the house's electrical installation with ground  (earth)  ?

--- End quote ---
Other oscilloscopes are the same (except for specially-built ones with isolation - I have a Tektronix battery-operated analog scope that is double-insulated). What you were doing is dangerous - and there is lots of information about it online; the DSO MUST be grounded.

Dave even made a video which talks about the fact that the DSO chassis (and all BNC connectors) are shorted to Earth ground (and how to avoid accidents when probing).
marmad:

--- Quote from: alank2 on June 08, 2013, 10:27:40 pm ---So guys, I'm thinking about possibly getting a DS2072 someday - my question is what is the deal with the demo features?  It comes with all of them enabled for a period of time?  How long?

--- End quote ---

Yes - 36 hours of ON time - although they're reasonably easy to just keep restarting.
Hydrawerk:
Same as on my DSOX2002A and my father's DSOX3000 at his company. It's probably not a bug.
egonotto:
Hello Hydrawerk,

if you anser at my posting that I erase.
If the trigger level is AC coupled I now understand a trigger level line makes no sense. So I erase my post.

Best Regards
egonotto
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