Author Topic: R&S NGU201 Source Measurement Unit / Battery simulator  (Read 569 times)

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Offline Leo Bodnar

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R&S NGU201 Source Measurement Unit / Battery simulator
« on: July 02, 2021, 05:29:00 pm »
This is recent foray of R&S into "proper" SMU market.
https://www.rohde-schwarz.com/ph/products/test-and-measurement/dc-power-supplies/rs-ngu-source-measure-units_63493-1005128.html

I am evaluating this unit for a few weeks with intention of buying it eventually.
Does anyone have any comments on its daily use?

GUI drives me mad.  It's barely at a first year university student level.  Everything is beautifully ugly and functionally disfunctional.
I can't even get to actual performance evaluation because it makes me cringe.

Anyone got one? Am I just missing something or need to just get on with it?

Leo

Offline trophosphere

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Re: R&S NGU201 Source Measurement Unit / Battery simulator
« Reply #1 on: July 02, 2021, 06:21:45 pm »
The GUI for the NGU series does indeed leave a lot to be desired in terms of actual usefulness. Rich has commented that the NGU series "has a number of updates coming for it" in another thread about the NGU401. That being said, I am waiting patiently as I have already purchased a NGU401.
 

Offline Leo Bodnar

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Re: R&S NGU201 Source Measurement Unit / Battery simulator
« Reply #2 on: July 04, 2021, 06:38:53 pm »
I chose NGU201 to a large extent due to the fact it advertises headline "graphical capability." Well here it is in full glory.
1. You can't change the time scale
2. You can't pause it or look beyond 60 seconds into the past
3. You can't change vertical scale or the top/bottom value limits
4. It autoscales on you like "Jack In the Box" to stop you from getting used to the scale.  You can't stop this
5. It does not respond to any touch input apart from changing the trace colours from a selection of 10 preset CGA era colours
6. If you correct your instrument time by two hours back, it locks up for two hours and you need to reset the instrument (or wait two hours)
7. Min/Max are in the format of "47.591 10 mA" and are randomly overlaid on each other
8. There is no average
9. Trace font is non-antialiased and jagged like randomly scaled down vector one

And this is just the beginning of the list.
It feels like designed by a kid that just learned programming and have no idea that people don't look at the charts to find max/min values with 7 digit resolution.
Even Chinese would be embarrassed of this GUI design.

Is this really R&S?!

Leo

Offline tv84

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Re: R&S NGU201 Source Measurement Unit / Battery simulator
« Reply #3 on: July 04, 2021, 08:26:35 pm »
That screenshot...   :palm:   :wtf:

Those guys could learn a lot with member Nx-1997.
 
The following users thanked this post: Nx-1997, 2N3055

Offline Leo Bodnar

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Re: R&S NGU201 Source Measurement Unit / Battery simulator
« Reply #4 on: July 04, 2021, 09:49:42 pm »
 :palm:
It gets worse...

I was in the middle of a two hour test run using NGU201 in battery simulation mode (a £650 additional software option) and the NGU201 just locked up on me.
None of the buttons or touchscreen worked apart from a single output on/off switch. 
I can't tell what currents and voltages I have ended up feeding my device with and whether any of the output protection worked.

http://leobodnar.com/files/locked-up-NGU201.mp4

This is pretty gross.  I would say this is not production ready.  Maybe a proof of concept stage...

I really need an SMU and a battery simulator to streamline the work I am doing. It looks like I would have to give Keithley another look.  I was hoping to replace 2281S + 2450 with a single box...

Leo
« Last Edit: July 05, 2021, 07:58:14 am by Leo Bodnar »
 

Offline Leo Bodnar

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Re: R&S NGU201 Source Measurement Unit / Battery simulator
« Reply #5 on: July 05, 2021, 08:02:00 am »
I am in touch with R&S UK guys who let me have the evaluation unit.  I need to update the firmware - I didn't want to mess with updates on a borrowed unit.
Leo


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