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| adam4521:
My earlier post relied on the datasheet linked at Batronix here (highest Google hit for me): https://www.batronix.com/files/Siglent/Zubehoer/SPL1016/SIGLENT_Probe_Datasheet.pdf But confused by Performa01 post, I find that the Siglent.EU one is different: https://www.siglenteu.com//wp-content/uploads/dlm_uploads/2022/04/Probe_DataSheet-E01A.pdf It would be good if this was on the main Siglent website, couldn't find! *Edit*, got it now: https://int.siglent.com/upload_file/user/siglent_probe_datasheet201908.pdf |
| kissel:
Thanks again to everyone for the help! Just pulled the trigger on a SDS1104X-U. With EDU pricing and the EEVblog code, $417 out the door. Super excited for it to get here. Does anyone have any recommended resources to learn the ropes of using an oscilloscope? Stuff like "don't probe mains voltage" that might seem blatantly obvious to those in the know. Most of my electrical knowledge is self-taught so I want to avoid the trap of not knowing what I don't know. |
| Performa01:
--- Quote from: Fungus on July 11, 2022, 03:59:49 pm --- --- Quote from: Performa01 on July 11, 2022, 03:37:59 pm ---The important things first: Nobody here advocates probing a mains powered circuit with an oscilloscope as long as you don't absolutely know what you're doing. This includes to use appropriate probes and avoid the ones that can be switched to x1 mode. --- End quote --- What if you're looking at power supply ripple? You need a x1 probe for that. --- End quote --- You really think so? * This needs not always be true for a low noise oscilloscope like the SDS1104X-U. * x1 Probes have limited bandwidth of usually less than 10 MHz. Industry standard bandwidth for noise and ripple measurements on supply lines is 20 MHz, so a x1 probe won’t cut it anyway. * We usually measure noise and ripple at the output of a PSU, not at the mains side. * Apart from all that: if a probe is only rated for 150 Vrms, then we cannot professionally use it at mains voltages in most parts of the world and we need to find some alternative solution. Full stop. |
| Fungus:
--- Quote from: Performa01 on July 11, 2022, 05:46:15 pm --- --- Quote from: Fungus on July 11, 2022, 03:59:49 pm ---What if you're looking at power supply ripple? You need a x1 probe for that. --- End quote --- You really think so? --- End quote --- I'm told so. --- Quote from: Performa01 on July 11, 2022, 05:46:15 pm ---We usually measure noise and ripple at the output of a PSU, not at the mains side. --- End quote --- You're poking around something that has live mains AC inside it... :-// |
| Performa01:
--- Quote from: adam4521 on July 11, 2022, 05:13:32 pm ---My earlier post relied on the datasheet linked at Batronix here (highest Google hit for me): https://www.batronix.com/files/Siglent/Zubehoer/SPL1016/SIGLENT_Probe_Datasheet.pdf But confused by Performa01 post, I find that the Siglent.EU one is different: https://www.siglenteu.com//wp-content/uploads/dlm_uploads/2022/04/Probe_DataSheet-E01A.pdf It would be good if this was on the main Siglent website, couldn't find! *Edit*, got it now: https://int.siglent.com/upload_file/user/siglent_probe_datasheet201908.pdf --- End quote --- Yeah, sorry. That long obsolete datasheet linked by Batronix is from January 2019 (not indicated in the document) and I think it is not correct anyway. Who the hell specifies a maximum voltage as Vpp instead of Vp or Vrms? |
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