Author Topic: Micsig Current Probe CP2100A/B Tests and Comparing  (Read 9376 times)

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Offline Elasia

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #75 on: August 04, 2020, 04:29:41 pm »

Trying to justify one of these for myself so trying to understand.  A few questions:
1.  Wouldn't you need to look at a much higher scope frequency to see any ringing?
2.  On a typical solar inverter or SMPS would there typically be any place that large a probe would fit that would be worth while to see ringing?

That specifically was a dig at the CP-65 and clones of it.. yeah.. it rings at that low of a frequency x_x

I'd point you to watch this guy's review of it.. and yeah he kinda looks like he came from metallica lol

 

Offline bicycleguy

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #76 on: August 13, 2020, 05:31:41 pm »
Is there going to be a CP2100A vs CP2100B comparison?
 

Offline Martin72

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #77 on: August 13, 2020, 06:50:32 pm »
When somebody else will buy a cp2100a, why not.
To be honest, I´ve played with the thoughts, buying the 2100a again and compare it to the b version.
Or trying to tear it down, especially the clamp, because there must be "more electronics" in it.
You can hear a relay switching, also the ammount of the leads coming from the clamp part are too less - Something must happen in the clamp part before...
Boy, imagine, this thing costs only 200/350 bucks...

Offline Elasia

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #78 on: August 13, 2020, 11:29:57 pm »
When somebody else will buy a cp2100a, why not.
To be honest, I´ve played with the thoughts, buying the 2100a again and compare it to the b version.
Or trying to tear it down, especially the clamp, because there must be "more electronics" in it.
You can hear a relay switching, also the ammount of the leads coming from the clamp part are too less - Something must happen in the clamp part before...
Boy, imagine, this thing costs only 200/350 bucks...

Yeah there are more inside the clamp, notice the clamp gets both positive and negative power supplied to it... all those little wires are on top of the main signal wire that is shielded itself

It's more of an active probe head unit... pretty amazing for the cost, they should come out with active scope probes too if they can make them anything like their diff and current probes
 

Offline EEVblog

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #79 on: August 25, 2020, 09:39:16 am »
Heads up, I'm going to sell the 2MHz unit and I just got stock ;D
Need to do a video of course, but will be offering a deal to my newsletter subscribers and Patrons and forum supporters shortly.
Should be able to beat other prices but that probably depends on your country.
Price will rise once my stock is gone, as MicSig gave me a deal on the batch of units.

 
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Offline EEVblog

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #80 on: August 25, 2020, 09:40:14 am »
Yeah there are more inside the clamp, notice the clamp gets both positive and negative power supplied to it... all those little wires are on top of the main signal wire that is shielded itself
It's more of an active probe head unit... pretty amazing for the cost, they should come out with active scope probes too if they can make them anything like their diff and current probes

Yes, I will be able to post a photo inside the clamp head tomorrow, it is indeed an active head design.
 
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Offline Elasia

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #81 on: August 25, 2020, 10:36:44 am »
Heads up, I'm going to sell the 2MHz unit and I just got stock ;D
Need to do a video of course, but will be offering a deal to my newsletter subscribers and Patrons and forum supporters shortly.
Should be able to beat other prices but that probably depends on your country.
Price will rise once my stock is gone, as MicSig gave me a deal on the batch of units.

Wow nice :)

Branded?  I could always use another, i'll take one off your hands

Cant wait to see inside that probe head
 

Offline EEVblog

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #82 on: August 25, 2020, 12:01:38 pm »
Branded?

No, not yet, it was a very significant cost to do that. Possibly in the future.
 

Offline Martin72

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #83 on: August 25, 2020, 09:11:47 pm »
Yes, I will be able to post a photo inside the clamp head tomorrow, it is indeed an active head design.

Wtf, how could they do it for this price....
Remember, I´ve bought an owon cp-05+ clamp for 170 bucks...
It looses in every case and cost only 30 less.

Offline EEVblog

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #84 on: August 25, 2020, 10:35:35 pm »
Full album here:
https://www.flickr.com/photos/eevblog/albums/72157715635511053

Uses an AD8421 inamp on the front end with dual hall effect sensors and relay switching.

Micsig CP2100B Current Probe Teardown by Dave Jones, on Flickr
« Last Edit: August 25, 2020, 10:47:11 pm by EEVblog »
 
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Offline EEVblog

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #85 on: August 25, 2020, 10:55:21 pm »
Yes, I will be able to post a photo inside the clamp head tomorrow, it is indeed an active head design.
Wtf, how could they do it for this price....
Remember, I´ve bought an owon cp-05+ clamp for 170 bucks...
It looses in every case and cost only 30 less.

Yikes. No contest!
I can offer the 2MHz CP2100B for US$365, MicSig sell it for US$499 on Aliexpress and US$599 on Amazon. Got them in stock now. Going to add them to my store today.
Not sure if I'll bother to carry the CP2100A model?
BTW, this design was supposed to be 2.5MHz, and I have an early unit labels that. But they couldn't maintain this spec in production so dropped it to 2MHz.
« Last Edit: August 25, 2020, 10:58:27 pm by EEVblog »
 

Online Kean

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #86 on: August 26, 2020, 12:54:11 am »
I can offer the 2MHz CP2100B for US$365, MicSig sell it for US$499 on Aliexpress and US$599 on Amazon. Got them in stock now. Going to add them to my store today.

My credit card is ready when you are!
I was about to buy one the other day on the AliExpress "Micsig official store", but the price was just a little too painful so I put it off again.
 

Offline maginnovision

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #87 on: August 26, 2020, 01:00:34 am »
Nice! Waiting on a link now.
 

Offline Elasia

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #88 on: August 26, 2020, 01:01:38 am »
Yes, I will be able to post a photo inside the clamp head tomorrow, it is indeed an active head design.
Wtf, how could they do it for this price....
Remember, I´ve bought an owon cp-05+ clamp for 170 bucks...
It looses in every case and cost only 30 less.

Yikes. No contest!
I can offer the 2MHz CP2100B for US$365, MicSig sell it for US$499 on Aliexpress and US$599 on Amazon. Got them in stock now. Going to add them to my store today.
Not sure if I'll bother to carry the CP2100A model?
BTW, this design was supposed to be 2.5MHz, and I have an early unit labels that. But they couldn't maintain this spec in production so dropped it to 2MHz.

I was wondering what the deal was with that 2 vs 2.5 floating around

Mine are all labeled as 2.5 on the control box, did they change that to 2? Or is it they call all of them actually to be 2 MHz and ignore the label?  What are your units labeled as?

Cool shots at the probe head, was wondering if they had any tuning parts inside it and how well the sensing halls were shielded

Interesting price point too, thats about the same as the best deal i saw on them.  Picked one off the bay for 360 direct from shenzhen maybe a month ago.. was expecting a boat but the guy dhl expressed it which was pretty cool, he has sense raised his price to 400
 

Online Kean

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #89 on: August 26, 2020, 01:04:01 am »
There are some on AliExpress at a much lower price than the official store, but I just wasn't willing to risk getting a factory second.
 

Offline EEVblog

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #90 on: August 26, 2020, 01:11:06 am »
 
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Offline EEVblog

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #91 on: August 26, 2020, 01:12:17 am »
I was wondering what the deal was with that 2 vs 2.5 floating around
Mine are all labeled as 2.5 on the control box, did they change that to 2? Or is it they call all of them actually to be 2 MHz and ignore the label?  What are your units labeled as?

My stock units are labeled 2MHz.
 

Offline maginnovision

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #92 on: August 26, 2020, 01:13:28 am »
Ordered.
 

Offline EEVblog

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #93 on: August 26, 2020, 01:14:18 am »
There are some on AliExpress at a much lower price than the official store, but I just wasn't willing to risk getting a factory second.

I can beat those Aliexpress prices, at least for the first batch of units.
 

Online Kean

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #94 on: August 26, 2020, 01:14:45 am »
Ordered.
ditto - I'm in Australia so my Internet sucks!
 

Offline EEVblog

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #95 on: August 26, 2020, 01:34:22 am »
FYI, have just sent the link to my newsletter list of 10,000 people and Patreon, so the 50 units might not last long.
 
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Offline technogeeky

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #96 on: August 26, 2020, 01:36:02 am »
I got one, declined card, paid with paypal, then it said it didn't go through, then finally it said the order is processing so I can't submit it.

Hope for the best!
 

Offline maginnovision

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #97 on: August 26, 2020, 01:41:34 am »
FYI, have just sent the link to my newsletter list of 10,000 people and Patreon, so the 50 units might not last long.

I don't think I've ever received the newsletter despite subscribing.
 

Offline TheDefpom

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #98 on: August 26, 2020, 01:43:44 am »
FYI, have just sent the link to my newsletter list of 10,000 people and Patreon, so the 50 units might not last long.

I got the newsletter email.... just not the money to get one :-(
Cheers Scott
Check out my Electronics & Repair Videos at https://www.youtube.com/TheDefpom
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My NEW Review Videos Channel: http://defs.link/?u=72b0c6
 

Offline Elasia

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Re: Micsig Current Probe CP2100A/B Tests and Comparing
« Reply #99 on: August 26, 2020, 01:45:25 am »
Ordered, i'll be interested to compare it to my 2.5 ones
 


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