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| Siglent SDS804/814X HD or Rigol HDO914S for Mechatronics student |
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| Fungus:
--- Quote from: Antonio90 on September 26, 2024, 09:45:48 am ---... start trying to repair it. Often without an isolation transformer. --- End quote --- Isolation transformers can be dangerous, too. They garantee your house circuit breakers will never trip. :) The thing newbies don't get is that grounding isn't done for the 'scope, it's done for the user. The 'scope doesn't care if it's grounded or not. |
| ptluis:
--- Quote from: Fungus on September 26, 2024, 01:21:06 pm --- --- Quote from: Antonio90 on September 26, 2024, 09:45:48 am ---... start trying to repair it. Often without an isolation transformer. --- End quote --- Isolation transformers can be dangerous, too. They garantee your house circuit breakers will never trip. :) --- End quote --- Specially when the internal insulation fails and the primary and secondary windings touch or there's a leak from primary into the chassis of the device :palm: |
| Jack359:
Yes, it became clear to me. Thanks. If I ground the scope and poke high voltage stuff with it, I can destroy the scope. :-BROKE If I don't ground it, I can kill myself cause then the BNC connectors and perhaps the case become live. There are electrically insulating gloves but they are not comfortable or very cheap. The only safe way to do it is with differential probes and grounded scope. |
| Fungus:
--- Quote from: Jack359 on September 26, 2024, 04:00:39 pm ---If I ground the scope and poke high voltage stuff with it, I can destroy the scope. :-BROKE --- End quote --- Hopefully only melt the probe wire. >:D |
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