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Products => Test Equipment => Topic started by: danny_isr on May 05, 2015, 08:39:37 pm

Title: Shorting Rigol DP832 outputs
Post by: danny_isr on May 05, 2015, 08:39:37 pm

Yesterday I chained all my outputs, wasn't aware that port 2 and 3 share the same ground  |O.
(Was powering one of those cheap DDS Function Generator from Ebay +12 -12 and 5v)
Bottom line, I shorted port 2 to ground. it was connected like that for few seconds.
I did not have the programmable OC and OV on.
Nothing really happen, I saw the display of port 2 all goes to zero.
I disconnected that, everything seems to work like before.

My question is, is it possible I damaged anything ? or did it go to "protection mode" ? how can you tell ?

thanks

Title: Re: Shorting Rigol DP832 outputs
Post by: dadler on May 05, 2015, 09:45:08 pm

You are fine.

Title: Re: Shorting Rigol DP832 outputs
Post by: danny_isr on May 05, 2015, 10:08:08 pm

that's what I wanted to hear :-+
thanks

Title: Re: Shorting Rigol DP832 outputs
Post by: c4757p on May 05, 2015, 10:20:49 pm

Any lab power supply that isn't shite can be shorted continuously.

Title: Re: Shorting Rigol DP832 outputs
Post by: electr_peter on May 05, 2015, 10:27:47 pm

Just shorting outputs is fine. Do not apply reverse voltage or high voltage to inputs though - such experiment can require a significant repair. See https://www.eevblog.com/forum/testgear/rigol-dp832-smoked-channel-1/ (https://www.eevblog.com/forum/testgear/rigol-dp832-smoked-channel-1/)

Title: Re: Shorting Rigol DP832 outputs
Post by: c4757p on May 05, 2015, 10:31:33 pm

Yeah, good to keep in mind. I stand by my declaration that it's a faulty, cheapass design though - a fuse and a crowbar cost almost nothing compared to all that metal in there.