A, Sümegi, Hungary
14 Mat 2019
The group I work in at Bosch owns a CS448 and a CS328-XSE. We love using the CS448.
C Cojocaru, Solantro, Canada
5 Feb 2019.
received the unit a while ago and we have tested
it on a GaN half-bridge eval board operating at up to 500V.
Everything looks good, I believe CS448 is a great addition to our lab.
A Smithies, Pertronic, New Zealand
15 Jan 2019
Our new CS448 is great. No, really great! What the acquisition unit brings in capability from having so much ground isolation and CMRR is in a league of its own. Can't say enough for it.
We have been working with very high impedance measurements and the FRA setup requires very good common mode rejection to determine the small difference between the probes. In the CS448 world, impedance measurements is so much better. One probe directly across the current sense resistor and the other probe directly across the DUT. Input the two channels to the gain/phase spectrum tool and the impedance computes directly!
J Pascual, BSHG (Bosch Siemens Hausgeräte GmbH), Spain
23 Nov 2018
One year ago, the entire team decided to buy a CS448 Isolated Channel Oscilloscope because this new device and its technical specifications were very promising. I've been using it for almost a year to measure and test power converters (half and full bridges) and power semiconductor devices and I have a very good impression. The independent isolated channels and the measure with passive probes had opened a world of new possibilities. So, many congratulations for this new oscilloscope, its promising design and all the documentation, articles and videos you have provided.
Thank you so much for the development of this novel unit
Alastair Smart, Australia
21 Aug 2018
Referring to the CS448:
"All is good, many good successful measurements made!"
C Elliot, UK
21 Mar 2018
We are great believers in investing in our lab equipment to make us efficient but always have to keep an eye on costs. Being a modest size outfit ourselves, we are also keen on supporting the small guys out there. When one of our scopes recently failed and it was uneconomic to repair, we therefore had a good look round for what was available from both the big T&M outfits and the smaller independent ones. Not only did we want 4 analogue channels with decent memory depth but also preferably higher resolution than a standard scope and digital logic inputs. At the same time we had been finding that making power switching measurements at high DC voltages was becoming increasingly difficult especially with more modern (faster) transistor technologies. Thus we also wanted something with very low coupling capacitance to earth and preferably isolated inputs, We were amazed to find a unit which met all our requirements by buying the PC based CS448 from NZ based based Cleverscope. Our technical partner was particularly impressed with the care and thought that has gone into the all important front-end of the product and their money back guarantee was the final clincher. The first job the unit was used for was to look at detailed gate drive waveforms on a high power SiC based inverter system. The results were very impressive indeed with very clean waveforms showing the expected “miller effect” waveforms that were previously covered in noise. They even had some custom x200 probes made so we could do power switching waveform measurements at higher DC bus voltages!! No we don’t have any vested interest in those clever chaps in NZ but when you see something you like you should let others know…
10 Mar 2018. Just writing to let you know the Cleverscope CS320 FRA is working very well for us and is being used to do tests we could never do before.
The Excel spreadsheet is part of a larger report where the Cleverscope was used to measure stability in an op amp circuit that has been notoriously difficult to get stable. Now, with the FRA, we get good insight into the phase/gain margins.
For the same project we needed to look at the Z and ESR of various capacitors. Again, Cleverscope to the rescue + the FRA fixture. As an aside, take a look at the difference between ceramic and lytic caps – never ceases to amaze me.
Michael Linden, USAOf all the organizations I've ever worked with, as an engineer or otherwise, Cleverscope has the best support.
Chris Turner, Australia
10 May 2017. Cleverscope STREAMING “WOW” this is engineering gold Bart, seriously great work you’ve done…
“I’m well impressed”
Robert Bolanos, USA6 Jul 2016. I am writing to let you know that the FRA has been working fine. I have played with it extensively and I have not found any problems, it has been very stable. Thank you for adding the LC button to the impedance trace where it displays the inductor and capacitance work very well.
Chris Turner, Australia10 May 2016. Cleverscope STREAMING “WOW” this is engineering gold Bart, seriously great work you’ve done…
“I’m well impressed”
Robert Tyrer, USA24 Feb 2016. We find more uses for your box daily. Great tool!
Darren Hopcroft, USA31 Mar 2015. Let me first thank you profusely for making my life a ton easier. Not only did you fix the SW issue I was having (one in which I would never have been able to figure out on my own), but you have prevented me from having to continue taking FRA measurements the long and hard way with a scope, a separate signal generator, and an isolation transformer. So my work life is now easier and this testing takes significantly less time and setup that I can now work on other things. Thanks you so much sir. I applaud your company’s work on such an innovative product.
Robert Brown, New Zealand7th Nov 2014. I spoke to Bart earlier this week about my non-functional CS328A. He told me to send it to you, which I did. Today I received the unit back, repaired, free of charge. This is simply exceptional service and I greatly appreciate it. The Cleverscope is a great piece of kit and to have such responsive and helpful support behind it makes it even better. Thanks a million!
Michal Zurowski and Kinga Bialek, Poland11 Oct 2014. Thank you for the great product including the equally great Windows app (hopefully on Linux in the future?) that we use for 8 or 9 years already.
Doede Douma, Germany19 September 2014 Thanks for swift answer! Much appreciate the great tech support and good web pages and manuals. This makes your products clearly a better experience than many other USB scope solutions. Great application note, I am always keen to see how others do their measurements. I like the tip of off setting the DC over the injection resistor!
John Larsen - USA12 September 2014 We're actually looking into upgrading (adding your new 65 MHz function generator) the first CleverScope that we purchased (that one has all the options) and maybe placing an order for a second, full load CleverScope. We're also really impressed with that scope now having the abiltiy to do impedance measurements as well ... that function will get a lot of use around our lab.
Robert Bolanos, US25 May 2014. The Spectrum Add Ref feature is awesome. It is useful to have multiple plots showing that the supply converter will remain stable under all load and input voltage condition. Keep up the great work you are doing on the Cleverscope FRA. I have been using the Cleverscope FRA and has been working very well and I am very happy with it.
Antony Boon, Switzerland28th May 2014 Great to be informed by email of your new updates.
Quite happy with the cleverscope and its performing as I would expect from a good instrument. Nice to see that you’re continually improving your product and especially that you’re improving the FRA part.
The reason why I bought your cleverscope was for the FRA alone and now I also have another scope and low-frequency spectrum analyser. It is quite useful for me as a scope as well and have already put that to use on some projects. I design power supplies and power conversion equipment and wanted an FRA but was not so willing to fork out 15k on one.
Colin Donaldson, New Zealand27 Jan 14. The isolated sig gen is working out brilliantly for looking at our converter loop responses.
Ed Sickmann, New ZealandStill find the clever scopes are the best investment I made in scopes to date , both my original CS328 and the CS328A (XSE) are powered 24/7 and are going strong.
amsmart, Australia10th July 2013 BTW, I’m extremely happy with the Cleverscope hardware and software - my other two DSOs now gather dust!. (from a forum post)
Greg Olson, USA3 July 2013 - I love your product!
Michal Zurowski28 June 13 - I bought my unit in 2006 or 2007 and I am still using it frequently. In my opinion Cleverscope definitely was (at the time) the best product of this kind that I knew about. In almost all respects it still is, perhaps assuming the 100MS/s and 8MS buffer are sufficient for a given application. In particular its flexible design, outstanding quality (both HW & SW) - at least from the user's point of view and the fact that one is able to update (and upgrade!) it so easily make it an amazing product.
Robert Bolanos, USA19 June 2013 - I want to thank Bart for his time and hard work for adding the FRA feature to his Cleverscope. This with out a doubt, brings the price of a FRA within the budget of small companies, consultants, and hobbyist. This is a serious piece of equipment that a self employed engineer can pack his Cleverscope scope in his briefcase, travel to a customer site and have in his hand an oscilloscope and FRA at his disposal at a very affordable price.
Dirk Handzic, Sweden18 Dec 2012 - I am very satisfied with the Cleverscope and I will recommend our customer to buy some for production testing and engineering too.
Paul Holthuizen, Netherlands9 May 2012 - I find my Cleverscope one of my best investments. And the LAN upgrade I got last year made it even more versatile!
Al McRobbie, USA16th December 2011 - Cleverscope is a little ‘bright spot’ here at Saelig because it’s a real joy to work with. We have virtually a 100% customer satisfaction rate with your scopes, and I have grown very comfortable with setting them up pre-testing them prior to shipping out. Every single one of them has performed well.
Michael Borthwick, Australia13 Dec 11 - I did a technical tour of the Australian Synchrotron a couple of weeks ago and saw quite a few Cleverscopes in the equipment racks monitoring various parameters. Very impressive and something you should consider making some propaganda about.
Paul Holthuizen, Netherlands12 Dec 2011 - [With regards to the Ethernet interface] It works great. Very nice solution: having the galvanic isolation and having the possibility to run Cleverscope on my 2560x1600 desktop while monitoring something on the workbench elsewhere! Thank you for a fine product and the good support!
Ed Sickmann, New Zealand3 Oct 2011 - "Still love that scope and the old 328 is still working fine on Win7 Ultimate / 64 ….. Best scope investment I ever made."
Ron Boyd, USA29 Sep 2011 - "I've been a user of Cleverscope for a few months now and really impressed with the product. "
John Larson, USA25 Mar 2011 - "Only one word to describe your Cleverscope ... Impressive!"
Dirk Schmid, Germany17th Feb 2011 - "I am a happy user of my cleverscope CS328A".
Richard Barker, USA17 Feb 2011 - "It's a great product and a valuable tool for us".
BrianM (from the forum), USA9 Dec 2010 - "The Cleverscope/netbook combination worked beautifully ..... All in all, you folks produce an incredibly flexible and easy to use piece of equipment."
Roger Dunn, Australia29 Jul 2010 - "The Cleverscope has been a saviour on many occasions, with years of successful operation. I work with very small signals and can look for mV and MHz - a fantastic combination for noise and switching power supplies".
Bruce McBean, Australia3 Aug 2010 - "We have been delighted with our Cleverscope and using it every day. Our Cleverscope gets LOTS of use while our poor Tektronix 2246A sits lonely on the shelf much of the time".
Ben Spaun, USA2 Dec 2009 "Cleverscope works great - Ben Spaun, Harvard University"
Jonathan Sullivan, UK8 Mar 2010 - "Its interesting, we are facing the CS device off against a Â£35k NI PXI system. The CS seems to me to be faster to use and more productive for work like we do. We're using all the tools, fast acquisition, deep buffer capture, detailed inspection, phase & spectrum inspection, automated file generation, maths builder, alias protection, signal documentation, automated 'signal info'.etc. You know the product well. My point is that we are deploying these tools quickly to make decisions in an expensive, time limited and stressful environment".
Adam, Poland27 Dec 2009 - "We are right now making homologation tests of ours new braking system. Cleverscope was outstanding - making measurement of braking system time reaction -after putting foot on brake pad and getting hydraulic pressure in brake cylinders. Feature allowing to check time from trigger point to chosen point on curve is just thing as we needed.
Best regards and wishes to you and Cleverscope team".
Bruno (from the forum)7 Oct 2009 - "Thank you very much for your help. It was exactly what I needed and luckily 2998 frames are enough for a prototype. I tested it today and it solved my problem. Thanks again."
Tony Hooley, UK5 Aug 2009 - "Job well done. I'll certainly recommend the product. More power to your elbows".
JCH2k - Forum post29 Jan 2009 - "thank you! thank you!
the new software does exactly what i wanted!
now i know, what i was paying for!
a happy cleverscope user!"