New MicSig/EEVblog DP10007 HV Differential Probe

[SkullKill]

I asked for custom branding on the Micsig current probes but they said my volume wasn't high enough.

@EEVblog any update on the fixed version yet? any ETA on selling it on your website by any chance?

[EEVblog]

I asked for custom branding on the Micsig current probes but they said my volume wasn't high enough.

@EEVblog any update on the fixed version yet? any ETA on selling it on your website by any chance?

Still haven't heard from them. I've kinda given up and gone back to selling the HVP70.

[todorp]

Hi, Is there an official distributer/reseller in europe for the HVP70?

[EEVblog]

Hi, Is there an official distributer/reseller in europe for the HVP70?

Simons Electronics in the Uk used to carry them, but he hasn't stocked them for a while.

[implor]

I'm looking at the Micsig DP10007 at batronix and it say:

"Only connect to a grounded oscilloscope!"

I can't see why that should be a requirement for safety. Am I missing something obvious?

https://www.batronix.com/shop/measurement/probes/Micsig-DP10007.html?gclid=CjwKCAjwur-SBhB6EiwA5sKtjny_NfIukZL1Pew1adK9JoLbAL2tpdluQwJF-S0ch1v9mzUYXXGzPBoCabUQAvD_BwE

[PartialDischarge]

"Only connect to a grounded oscilloscope!"

Differential probes are not isolated probes, the ground serves as a sink for currents in the attenuator inputs. If you float the ground of a differential probe it sits a voltage in between the voltage of the inputs

[implor]

"Only connect to a grounded oscilloscope!"

Differential probes are not isolated probes, the ground serves as a sink for currents in the attenuator inputs. If you float the ground of a differential probe it sits a voltage in between the voltage of the inputs

I Get it. You can do it with a battery oscilloscope but your BNC will be half the value of what ever you are probing.

[EEVblog]

See here:



and

[Trader]

I've been informed by Micsig that a new version of the DP10007 is coming shortly, presumably to fix the CMRR issue I raised.

Any information available on this "new and improved" version of the DP10007 probe?
E.g. is the updated version currently being shipped Micsig?
Any information of serial number cut-over, or other way to identify new variant?

Any updates about that?

[EEVblog]

I've been informed by Micsig that a new version of the DP10007 is coming shortly, presumably to fix the CMRR issue I raised.

Any information available on this "new and improved" version of the DP10007 probe?
E.g. is the updated version currently being shipped Micsig?
Any information of serial number cut-over, or other way to identify new variant?

Haven't bothered to ask, they haven't bothered to tell me.
I'm back to selling the HVP70
Any updates about that?

[ojete]

You can ask batronix, they are selling a new batch and maybe the problem is now fixed.

[PartialDischarge]

You can ask batronix, they are selling a new batch and maybe the problem is now fixed.

It is not a design problem, it is a production problem where the CMRR needs to be adjusted by careful compensation of the capacitances in the input divider legs, ergo it is a question of time and cost. Ergo I don’t think they are solving it lol

[dreamcat4]

maybe we can modify our own probes then to fix it?

[PartialDischarge]

maybe we can modify our own probes then to fix it?

I don’t know what is your intended use, but your better off spending the money in a good diff probe if you need a good CMRR , or even a fiber isolated probe.
Right now Lecroy and RS make the best diff probes

[EEVblog]

maybe we can modify our own probes then to fix it?

I don’t know what is your intended use, but your better off spending the money in a good diff probe if you need a good CMRR , or even a fiber isolated probe.
Right now Lecroy and RS make the best diff probes

Lecroy rebadge Sapphire probes, which is who makes my HVP70.

[ojete]

It seems there is a new probe from Micsig which looks very good.

https://www.batronix.com/files/Micsig/DP750-Files/Micsig-DP750-Catalog.pdf

[Trader]

Output Voltage ≤1.5V, maybe not a low noise.

[TwistedTransistor]

I've been looking at buying a new diff probe recently.

It strikes me that this DP10007 is not much good for off-line SMPS work as it is limited by its maximum differential and common-mode voltage specs. A typical modern off-line switcher with PFC is going to be switching about 400V and depending on the circuit topology it is fairly common to see twice that across the switch, i.e. 800V.

On the other hand, the 1300V spec of the DP10013 is possibly higher than it ideally would be, giving poor SNR.

It seems to me that the optimal is somewhere between the two. If I was Micsig I'd probably have aimed at about 850-900V.

It does lead one to wonder what the target market of the DP10007 is? Maybe they want you to buy both DP10007 and DP10013 to cover all scenarios. Sneaky.

[Martin72]

Last saturday my DP10007 arrived, didn´t test it so far.
Looks good so far, if it´s usable the price is insane cheap, so I wouldn´t worry to buy another one to cover higher voltages.

[bdunham7]

It does lead one to wonder what the target market of the DP10007 is? Maybe they want you to buy both DP10007 and DP10013 to cover all scenarios. Sneaky.

The best configuration IMO is a 1400V_pk 20X design with the 7 volt output.  Sapphire makes one, but apparently people are put off by the 'odd' 20X attenuation.  The DP10007 is safe to 1400V_pk just like the DP10013, it just saturates the output.  I have the DP10007, it works and is handy at times, but I don't regard it as quite a pro-quality instrument and am glad I got it cheaply.  I would gleefully trade it for a Probemaster 4231 if I could.

[EEVblog]

It does lead one to wonder what the target market of the DP10007 is? Maybe they want you to buy both DP10007 and DP10013 to cover all scenarios. Sneaky.

The DP1007 was created at my request to match my HVP70 that I sell. The plan was for me to sell a lower cost x10/x100 varient with similar specs.
So they created it based on the HVP70 spec I gave them (and they matched it spec for spec IIRC), I tested it and it had problems that they never got back to me to resolved. They released it anyway.
I'm still selling the HVP70.

[Martin72]

I tested it and it had problems

What problems ?

[EEVblog]

I tested it and it had problems

What problems ?

It would not meet the CMRR spec.

[Martin72]

Now I got one, how can I test it to see if it´s still a problem ?

[Martin72]

Now I got one, how can I test it to see if it´s still a problem ?

None ?