Products > Test Equipment

Passive probes and quality

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tszaboo:

--- Quote from: IC_Toaster on November 07, 2024, 07:46:40 pm ---@spikey1973
I did that comparation, but I don't have much knowledge so probably there are more test to do in order to determine the probe frequency response. In that case, I accept suggestions to do these test.
The Siglen probe is this: https://www.siglent.eu/product/1262729/siglent-pb470-70mhz-1x-10x-attenuation-oscilloscope-probe
And the specifications are: 70MHz 1X/10X attenuation, 85/18pf, 1M/10Mohm, 6M/70MHz, 300V/600V

Sorry Spikey, I will take advantage of this thread to ask for recommendations for a not expensive probe with at least 200 MHz bandwith for my Siglent oscilloscope (200 MHz is supposedly the oscilloscope bandwith).
Does this Owon probe worth it? https://www.aliexpress.com/item/1005006370069181.html

--- End quote ---
The 70MHz 12 bit Siglent scopes come with 200MHz probe. If you accidentally overclocked the oscilloscope to 200MHz, you don't need new probes. If you really want new probes, the P2200 (not tektronix ones) are identical in the probe side as the siglent ones, PB470, with different compensation, different BNC connector.

IC_Toaster:

--- Quote from: KungFuJosh on November 07, 2024, 08:12:18 pm ---IMO, the best probes are from ProbeMaster.com, and many people like Testec too.

--- End quote ---

ProbeMaster is in USA, but Testec is in Germany. As I am in Europe, Testec would be easier to buy, and their probes look reliable.



--- Quote from: Aldo22 on November 07, 2024, 08:13:26 pm ---
--- Quote from: IC_Toaster on November 07, 2024, 07:46:40 pm ---Sorry Spikey, I will take advantage of this thread to ask for recommendations for a not expensive probe with at least 200 MHz bandwith for my Siglent oscilloscope (200 MHz is supposedly the oscilloscope bandwith).
Does this Owon probe worth it? https://www.aliexpress.com/item/1005006370069181.html

--- End quote ---

I have the PP-250 from here.
They are OK as far as I can tell.
For lower frequency ranges, however, I always use the probes with less bandwidth, as these also serve as a low pass filter and less high frequency noise gets through.

--- End quote ---

Good idea using probes with lower bandwith as filter. Moreover, they are cheaper.
The price is similar to the 200 MHz bandwith Owon one.



--- Quote from: tszaboo on November 07, 2024, 09:45:51 pm ---
--- Quote from: IC_Toaster on November 07, 2024, 07:46:40 pm ---@spikey1973
I did that comparation, but I don't have much knowledge so probably there are more test to do in order to determine the probe frequency response. In that case, I accept suggestions to do these test.
The Siglen probe is this: https://www.siglent.eu/product/1262729/siglent-pb470-70mhz-1x-10x-attenuation-oscilloscope-probe
And the specifications are: 70MHz 1X/10X attenuation, 85/18pf, 1M/10Mohm, 6M/70MHz, 300V/600V

Sorry Spikey, I will take advantage of this thread to ask for recommendations for a not expensive probe with at least 200 MHz bandwith for my Siglent oscilloscope (200 MHz is supposedly the oscilloscope bandwith).
Does this Owon probe worth it? https://www.aliexpress.com/item/1005006370069181.html

--- End quote ---
The 70MHz 12 bit Siglent scopes come with 200MHz probe. If you accidentally overclocked the oscilloscope to 200MHz, you don't need new probes. If you really want new probes, the P2200 (not tektronix ones) are identical in the probe side as the siglent ones, PB470, with different compensation, different BNC connector.

--- End quote ---

If the ocilloscope were accidentally overclocked, could it suffer any negative consequence?
It is supposed PB470 probe has 70MHz bandwith and I took it in this way. It is good to know this probe is better than specified.
Anyway, I will take a look at P2200 probes.

spikey1973:

--- Quote from: tszaboo on November 07, 2024, 09:45:51 pm ---The 70MHz 12 bit Siglent scopes come with 200MHz probe. If you accidentally overclocked the oscilloscope to 200MHz, you don't need new probes. If you really want new probes, the P2200 (not tektronix ones) are identical in the probe side as the siglent ones, PB470, with different compensation, different BNC connector.

--- End quote ---

Oke how do you accidentally overclock a scope? did you stumble?  :P


--- Quote from: Aldo22 on November 07, 2024, 09:22:40 pm ---Well, he has a $70 scopemeter (50MHz).
So 2 x $60 for probes doesn't quite fit.  ;)

--- End quote ---

Well eh not for much longer I'm afraid I recieved it today and played around with it (with my friend) and we both decided to ship it back.
I will go and search for something similar. Already looking at Zeeweii (thanks to you) but moved on to the Dso3d12.

Well I will be waiting for the refund first and then at least another choice day or something like that.
Also I would get it from there official store ofcourse.

But before deciding I will have a long read back in the Zoyt zt70xs thread to see what else was suggested over time.


--- Quote from: KungFuJosh on November 07, 2024, 09:39:37 pm ---Pssshh. Probes are more important. 😉

If he can find a good price, the Pico TA131 probes are great. I got some years ago for less than $20 a probe.

--- End quote ---

I will keep that in mind!! thanks.

@IC_Toaster, I will have a look @ Testec.
@Aldo: oke, so I should not chuck my uni-t 60Mhz probes yet, If I'd decide to go for the Dso3d12  :-DD

Thank you all again for infomative replies :D

IC_Toaster:

--- Quote from: spikey1973 on November 07, 2024, 10:42:32 pm ---
--- Quote from: tszaboo on November 07, 2024, 09:45:51 pm ---The 70MHz 12 bit Siglent scopes come with 200MHz probe. If you accidentally overclocked the oscilloscope to 200MHz, you don't need new probes. If you really want new probes, the P2200 (not tektronix ones) are identical in the probe side as the siglent ones, PB470, with different compensation, different BNC connector.

--- End quote ---

Oke how do you accidentally overclock a scope? did you stumble?  :P


--- Quote from: Aldo22 on November 07, 2024, 09:22:40 pm ---Well, he has a $70 scopemeter (50MHz).
So 2 x $60 for probes doesn't quite fit.  ;)

--- End quote ---

Well eh not for much longer I'm afraid I recieved it today and played around with it (with my friend) and we both decided to ship it back.
I will go and search for something similar. Already looking at Zeeweii (thanks to you) but moved on to the Dso3d12.

Well I will be waiting for the refund first and then at least another choice day or something like that.
Also I would get it from there official store ofcourse.

But before deciding I will have a long read back in the Zoyt zt70xs thread to see what else was suggested over time.


--- Quote from: KungFuJosh on November 07, 2024, 09:39:37 pm ---Pssshh. Probes are more important. 😉

If he can find a good price, the Pico TA131 probes are great. I got some years ago for less than $20 a probe.

--- End quote ---

I will keep that in mind!! thanks.

@IC_Toaster, I will have a look @ Testec.
@Aldo: oke, so I should not chuck my uni-t 60Mhz probes yet, If I'd decide to go for the Dso3d12  :-DD

Thank you all again for infomative replies :D

--- End quote ---

The probe provided by Zoyi is a P2060, so I guess P2200 probes are same quality and construction but different bandwidth.
I see it is possible to get 2 P2200 probes under 19€.
Probably Testec is better, but quite more expensive.

KungFuJosh:

--- Quote from: IC_Toaster on November 07, 2024, 10:00:12 pm ---
--- Quote from: KungFuJosh on November 07, 2024, 08:12:18 pm ---IMO, the best probes are from ProbeMaster.com, and many people like Testec too.

--- End quote ---

ProbeMaster is in USA, but Testec is in Germany. As I am in Europe, Testec would be easier to buy, and their probes look reliable.

--- End quote ---

https://www.welectron.com/Probe-Master_1

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