Products > Test Equipment
How to check a 230VAC sine/modified wave with an oscilloscope (FNIRISI 1013D)
juan3211:
Thanks, :-DD he is my brother in law, I am helping him by posting here. I will check the videos myself and try to explain him, thanks
--- Quote from: joeqsmith on March 21, 2023, 01:16:18 pm ---
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juan3211:
Yes, that is why the best option could be a simple step down transformer. As I have read all of you, it will not disturb the wave form a lot, so for a no-precise job, it may work
--- Quote from: JeremyC on March 21, 2023, 03:35:36 pm ---
--- Quote from: shapirus on March 21, 2023, 03:20:22 pm ---
--- Quote from: JeremyC on March 21, 2023, 03:02:50 pm ---high voltage differential probe
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High voltage yes, but it doesn't have to be differential. Inverters are floating, because they are battery-powered. They don't have any connection to ground.
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OP mentioned that he may need to check mains in his house
--- Quote ---So if I want to check my home circuit (ground +neutral+phase, generally neutral is connected to ground in grid's substation) how do I need to connect transformer secondary outputs ? What is the correct option?
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joeqsmith:
--- Quote from: juan3211 on March 21, 2023, 03:40:57 pm ---Thanks, :-DD he is my brother in law, I am helping him by posting here. I will check the videos myself and try to explain him, thanks
--- Quote from: joeqsmith on March 21, 2023, 01:16:18 pm ---
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--- Quote from: joeqsmith on March 21, 2023, 01:16:18 pm ---
--- Quote from: juan3211 on March 21, 2023, 12:31:27 pm ---...
Now I know that these two YouTubers how review the 1013D don't know a lot about it or about electronics in general.
...
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Rather than place the blame on the YouTubers, maybe consider the SISO factor (Shit In = Shit Out). Asking better questions may yield better results.
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You posted the comment blaming YouTubers, not your brother in law. Now you blame him. I may not know a lot about electronics in general but I'm mature enough not to blame others for my shortcomings.
juan3211:
Sorry, I am not speaking about you. I was speaking a out two YouTubers that said that the Fnirisi 1013d was capable of measuring 230vac with 10x and that they already had done it.
Sorry if have written something that you feel bad.
Sorry.
Of course it is not general, I am more confident with this forum, not YouTube. My brother in law has get that answer from 2 YouTubers. NOT YOU
Sorry again for misunderstanding.
Thanks a lot for all your help.
--- Quote from: joeqsmith on March 21, 2023, 04:24:53 pm ---
--- Quote from: juan3211 on March 21, 2023, 03:40:57 pm ---Thanks, :-DD he is my brother in law, I am helping him by posting here. I will check the videos myself and try to explain him, thanks
--- Quote from: joeqsmith on March 21, 2023, 01:16:18 pm ---
--- End quote ---
--- Quote from: joeqsmith on March 21, 2023, 01:16:18 pm ---
--- Quote from: juan3211 on March 21, 2023, 12:31:27 pm ---...
Now I know that these two YouTubers how review the 1013D don't know a lot about it or about electronics in general.
...
--- End quote ---
Rather than place the blame on the YouTubers, maybe consider the SISO factor (Shit In = Shit Out). Asking better questions may yield better results.
--- End quote ---
--- End quote ---
You posted the comment blaming YouTubers, not your brother in law. Now you blame him. I may not know a lot about electronics in general but I'm mature enough not to blame others for my shortcomings.
--- End quote ---
juan3211:
Thanks a lot for your videos.
They are quite complicated for me, but this is my fault, not yours. I am newbie. I can see that you measure the wave form after a transformer with little distortion in it.
As I understand, in this videos you are not comparing the wave before and after the transformer, are you? I have tried to searched a video with this comparation but I can not find anything similar.
Anyway, thanks a lot. I think that I can go on using an step down transformer
Thanks a lot guy and sorry again for my words, I didn't want to create polemic.
--- Quote from: joeqsmith on March 21, 2023, 01:16:18 pm ---
--- Quote from: juan3211 on March 21, 2023, 12:31:27 pm ---...
Now I know that these two YouTubers how review the 1013D don't know a lot about it or about electronics in general.
...
--- End quote ---
Rather than place the blame on the YouTubers, maybe consider the SISO factor (Shit In = Shit Out). Asking better questions may yield better results.
--- Quote ---DDS (DIY Domótica Solar) 21 hours ago
@joe smith hi , in order to measure a 50-60hz sine wave to check some inverters, main grid,... modified or pure sine, armonics, .... Is it good to use a step down transformer ? For example, from 240vac to 24vac. Or it (transformer) will distrub, smooth, .... signal ?
joe smith13 hours ago
@DDS (DIY Domótica Solar) It depends what you are after. Anything you use will cause some error. Not all transformers will have the same response. Of course, you don't want to apply any DC to a transformer. Following videos show a simple transformer / LEM used to measure AC power with my scope.
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