Author Topic: Rigol 2072a Oscilloscope - 230V Mains - Switching Power Supply Probing  (Read 2736 times)

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Offline pantelei4

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Re: Rigol 2072a Oscilloscope - 230V Mains - Switching Power Supply Probing
« Reply #25 on: October 17, 2018, 06:16:45 am »
I use Rigol 2072a + Micsig DP10013 for measurements in hot connections.  :-+
Oscillograms of 1 MHz meander, amplitude 5 V, band limitation 100 MHz
- DP10013 delay around 5ns (blue 10X, yellow 50X)
- noise 50X
- noise 500X
« Last Edit: October 17, 2018, 06:19:36 am by pantelei4 »
 
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Offline David Hess

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Re: Rigol 2072a Oscilloscope - 230V Mains - Switching Power Supply Probing
« Reply #26 on: October 19, 2018, 01:12:06 pm »
300 volts RMS is 425 volts peak so there should be no problem.  Rigol's lack of frequency derating makes this specification fuzzy so I would not trust it; it could be better or worse so take your chances.

Note that a typical x100 probe will *not* protect the oscilloscope from excessive DC voltage when AC coupling is used.  These probes need to be used with DC coupling at high voltages.
 
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