Hi,
As the title says, just a very short review of the current clamp.
I bought it to see if it could replace our old Tektronix systems (A6302/AM503B) because the Teks take up a lot of space.
Until now, however, there were no current clamps that could compete with the Tek - can the Siglent do it?
The CP6030 costs €2080 excluding tax.
As with all other scope manufacturers (with the exception of Tektronix) that offer current clamps, this current clamp is not really from Siglent.
In another thread, a member pointed out that the "original" came from Cybertek:
http://www.cybertek.cn/info/989This Cybertekt is not only found at Siglent, Rigol and R&S also offer it under their own names.
The current clamp comes in a now unavoidable small, sturdy case, the workmanship of the clamp is very good, everything makes a high-quality impression.
A power supply unit with various plug attachments is included.
Today I had a short time to measure it before it is sent for external calibration (we can't use it before then).
The noise level is excellently low, well below 1mA, I was surprised - or not, because it has a high output level of 1V/A in the low range.
Then I connected it to my shielded adapter and connected the Bodnar pulser.
The current is low and the frequency is high, does that work well? It went well.
Rise time is around 6ns, you can easily see the waveform, is identical to what the Tek outputs, except for the overshoots which are probably due to the high impedance (1Mohm is required for operation).
Then I used the Bodeplot, we have 6 siglent SDS2104Xplus at work, plus an SDG1062X via USB.
What can I say, the linearity is very good, better than the Teks we have at work and better than all the other "Tek clones" I have tested before.
All in all, a very impressive performance, especially for the money.
So everything perfect? Not really.
The CP6030 has no manual offset correction (but the automatic one works very well), and the head is also quite sensitive to magnetic fields, as well as the overshoots mentioned above.
In practice, however, this hardly matters, so I can say that there really is an alternative to the good old Tektronix system.
Very good.
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif.pagespeed.ce._JElyJQqdB.gif)
Conclusion:
+Very low noise
+Very good linearity, easily under 0.3dB
+Basic accuracy of 1%
+Very small amplifier/supply unit
+Degaussing function
+Price/performance
-No manual DC offset correction option
-Sensitivity to magnetic fields
-Overshoot at high frequencies, due to impedance
Pictures:
Case interior view, view of supply unit, noise level, risetime, bodeplot with 1dB resolution, bodeplot with 0.5dB resolution, both with amplitude and phase
Martin