As ´christmas present 2020´ I ordered my the active differential highvoltage probe Micsig DP20003 from Batronix.
So far I had no professional way to measure my ESL-stators under full power conditions. The Micsig probe is specified to up to 5600Vpp, hence 2kVrms. Even higher voltages could be wished for, but at considerable higher costs.
I waited with my order for some time though since there had been two versions around.
The first one -possibly older version- coming with the accessories as on the pic on the Batronix website. This includes a bit stiffer hard-connected cables (looking like PVC insulated), and pairs
of grabbing hooks, probe tips and crocodile clamps, plus a USB A-to-B power supply cable.
With the other newer version (see above pic) the cabling is softer, more like silicon, and the crocodile clamps are larger. The clamps and the probe tips also appear to be of better quality
... the whole set certainly looks better now ... like a premium edition.
The set is delivered in a nice little carrying case with foam inlets that hold all parts in their place.
Also included is a a small paper warranty card (actually signed by a human) and what Micsig calls ´User Manual´. That is a very basic two-sides printed DIN-A4 sheet of paper containing the specs,
general rules when dealing with high voltage and operating instructions.
But then, it really doesn´t take much writing to describe the operating of such a probe anyway.
I do miss a description of the function of the USB socket on the right side of the probe marked with a network symbol. The manual calls it a power Output and that´s probabely all it is.
I don´t see its usefullness. Instead its an unneccessary hole in the casing open to dust and debris.
I don´t think it´s useable for data transmission regardless of the printed-on network symbol.
A service manual is unfortunately not supplied for -as it seemingly has become common practise for almost all modern devices in this post-facts era.
Micsig warrants freeness from defects in materials and workmanship for only one year and even less 6 months on the accessories. The formal 2 year warranty period here in the EU applies
nontheless.
The probe housing itself is made from plastic and feels quite solid. Two soft rubber buttons switch between the attenuation factors and serve for calibrating purposes as well as giving an optical
overrange alarm.
The two measuring cables (~45cm) and the BNC-cable going to the oscilloscope (~90cm) are fix to the housing. I preferred connectors to be flexible in cable length and in case of needing to
replace a cable. As a plus the cable outlets are equipped with flexible bend-protections.
All in all the quality of the set appears very decent.
The probe will very probabely not reach the claimed 100MHz of bandwidth with the measuring cables connected in this indifferent way, but it´d certainly be good up to the low MHz range.
My main use is testing rather low power HV supplies, amps and ESL speaker stators, in the audio frequency range and above. For these applications it does a good job.
Compared to a vastly costier LeCroy passive HV-probe the Micsig seemingly performed on par, giving it the edge when differential probing was either the better way to measure or the anyway
required method. I didn´t check the accuracy in comparison, but the Micsig gave me no reason to doubt the displayed waveforms.
The Micsig DP20003 appears to be a tool of high usefulness and very good price-performance-ratio.
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