Author Topic: REVIEW - Rigol MSO5000. Tests, bugs, questions  (Read 23481 times)

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Offline ve2mrx

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #125 on: June 05, 2020, 01:53:32 am »
Hi!
I, for one, use the settings save and restore function, but if you don't set the channels to x10 (like the probes are set) before you restore, odd stuff happens (IIRC, with the trigger).

Also, I think that the restore to last function needs to have a saved settings done before it works as expected.

Diamond in the rough, but nice to use still!

Martin
 

Offline Fungus

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #126 on: June 05, 2020, 07:47:32 am »
A better option is to have a set of user configuration that one can store, and a menu to choose the default config to boot the scope with.  It shouldn’t be hard to code, but I don’t know if Rigol really care about what it’s customer has to say, so I won’t hold my breath.

Powering it on/off to load a preset in stead of pressing a few buttons?

How is that a good idea? Remind me again how long these take to boot...

Quote
Its buried 3 levels down
And this is imho a main problem of the UI...

Maybe it's not used often enough to deserve being at top level.
« Last Edit: June 05, 2020, 07:49:26 am by Fungus »
 

Offline Sighound36

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #127 on: June 05, 2020, 08:39:03 am »
You can also 'save' your particular measurement parameters for you experiment as a 'setup' then just load it up when you boot or when you change experiments. Works for me 
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Offline Gandalf_Sr

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #128 on: June 05, 2020, 07:22:51 pm »
Here's another bug (sorry if it's already been raised)...

When performing a self-calibration, the pop up dialogue box that has the % complete says "waitting" (too many 't's)
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Offline Axk

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #129 on: June 05, 2020, 11:00:00 pm »
Hi everyone!

Sorry for a silly question looking at buying such a scope and wonder if it has a plastic smell.
If you keep it on the workbench can you feel the smell in the room?

(I'm allergic to strong smells so an important consideration for me as silly as it may sound :))
 

Offline ve2mrx

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #130 on: June 05, 2020, 11:38:27 pm »
Hi Axk,

It smelled a bit when I unpacked it, but I couldn't smell it after a few days. In doubt, open the package in a well ventilated place outside the house and leave it there for a few hours/days.

Every fresh electronics does smell when sealed for a time. But this one is on the low side. Of course, YMMV!

Martin
 
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Offline NoisyBoy

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #131 on: June 05, 2020, 11:48:22 pm »
You missed my point, I never referred to rebooting the scope just to load a different config.  Getting back to the original requirement - the ability to select 10X as the default as one boots the scope.  My suggestion was to save a config with the 10X option selected, then provide an option to choose it as the default boot config.  That way, every time you boot the scope, the probe is set at 10X as the default. 



A better option is to have a set of user configuration that one can store, and a menu to choose the default config to boot the scope with.  It shouldn’t be hard to code, but I don’t know if Rigol really care about what it’s customer has to say, so I won’t hold my breath.

Powering it on/off to load a preset in stead of pressing a few buttons?

How is that a good idea? Remind me again how long these take to boot...

Quote
Its buried 3 levels down
And this is imho a main problem of the UI...

Maybe it's not used often enough to deserve being at top level.
 

Offline Axk

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #132 on: June 06, 2020, 12:42:40 am »
ve2mrx, I'm asking because I've a 1054z and it has this rather strong smell, the gray plastic of the probes and the scope. Fills the room even hands smell for some time after holding the probes. And it's been 4 years (I keep it in an airtight box most of the time to keep the smell away).
 

Offline ve2mrx

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #133 on: June 06, 2020, 01:23:34 am »
Hi Axk,
You are probably making things worse by sealing it up between uses. The gasses need to get out of the material for the smell to go away.

It is pretty much like trying to dry out a towel by sealing it up in a plastic bag: it never dries, and the moisture end up interacting with the content making things worse like altering the materials.

I think further discussions about outgassing and smell should be in another thread so we don't hijack this one. Post the link back in the MSO5000 thread list and here.

Martin
 
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Offline Gandalf_Sr

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #134 on: June 06, 2020, 10:25:38 am »
I don't have a very sensitive sense of smell but my MSO5074 doesn't smell at all IMHO.
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Offline macaba

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #135 on: June 07, 2020, 12:21:29 pm »
I got curious about the analog gains in the front end. Using the SCPI interface, I was able to get the raw ADC counts. I then swept the channel 1 vertical offset to establish Vmin and Vmax for each of the vertical gains being tested.

Code: [Select]
500uV. ADC 0 = -7.3mV,  ADC 255 = +7.65mV (Screen: -2mV to +2mV)
1mV.   ADC 0 = -14.6mV, ADC 255 = +15mV   (Screen: -4mV to +4mV)
2mV.   ADC 0 = -14.6mV, ADC 255 = +15mV   (Screen: -8mV to +8mV)
5mV.   ADC 0 = -25.6mV, ADC 255 = +26.2mV (Screen: -20mV to +20mV)
10mV.  ADC 0 = -51.2mV, ADC 255 = +52.8mV (Screen: -40mV to +40mV)
20mV.  ADC 0 = -101mV,  ADC 255 = +104mV  (Screen: -80mV to +80mV)
50mV.  ADC 0 = -254mV,  ADC 255 = +258mV  (Screen: -200mV to +200mV)
100mV. ADC 0 = -500mV,  ADC 255 = +512mV  (Screen: -400mV to +400mV)
200mV. ADC 0 = -1.01V,  ADC 255 = +1.03V  (Screen: -0.8V to +0.8V)
500mV. ADC 0 = -2.56V,  ADC 255 = +2.64V  (Screen: -2V to +2V)

It seems the 500uV isn't a 'lie' as it is the final analog gain step (but 1mV is a lie). Probably should have been: 5mV, 2.5mV, 1mV (with no 500uV range).

Might also make more sense if the top and bottom UI moved to the left/right, and we got 4.5 divisions up and 4.5 divisions down.

Edit: What's not so good; SCPI interface slows the UI down, and it's just crashed the UI.
« Last Edit: June 07, 2020, 12:29:47 pm by macaba »
 
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Offline AlexS

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #136 on: June 15, 2020, 07:58:38 pm »
Hey guys! Maybe somebody has resolved a bug and can share with the experience.
Different levels of the same signal from trigger. And measure results between input and output signal looks much more horrible :-//
 

Online Martin72

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #137 on: June 15, 2020, 08:17:22 pm »
On the first pic, the different measure seems plausible to me, as the negative halfwave are slightly more and under the divison grid, as the positive one.

Offline tautech

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #138 on: June 15, 2020, 09:17:19 pm »
On the first pic, the different measure seems plausible to me, as the negative halfwave are slightly more and under the divison grid, as the positive one.
Exactly, it's a probe compensation output FFS not some precision square wave supply.
There also could be some minor channel 0V offset indicating the scope needs Self Cal run.
Avid Rabid Hobbyist
 

Offline AlexS

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #139 on: June 15, 2020, 11:11:54 pm »
It was self calibrated and compensation was installed. The only one that I can imagine - I hacked it and did not used previous backup. Does it make sense?! What do you think guys?
 

Offline Gandalf_Sr

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #140 on: June 15, 2020, 11:36:40 pm »
Did you run a self calibration?
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Offline AlexS

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #141 on: June 16, 2020, 07:35:58 am »
Sure! I’ve used self calibration and has removed previous. And the problem you know... When I’m measuring amplified signal is about 6-7 times sine wave loosing symmetricality.
 

Offline AlexS

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #142 on: June 16, 2020, 07:38:33 am »
That’s very strange. DS1054z showing normal data - everything perfect. Higher model MSO showing incorrect. Paradox. Ahah
« Last Edit: June 16, 2020, 09:53:15 am by AlexS »
 

Online TK

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #143 on: June 16, 2020, 12:27:32 pm »
Maybe it is the opposite. You need a third scope to compare
 
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Offline ve2mrx

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #144 on: June 16, 2020, 01:42:59 pm »
IIRC, the calibration verification guide mentioned to re-run self-calibration if out of spec...

I recommend doing it away from any potential electrical interference... You know, like in the middle of electrical nowhere  ;-) For me, it's the kitchen table with lights and electronics off while the fridge compressor is not running!

I wonder if those "option" channel caps would help?
 

Offline AlexS

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #145 on: June 18, 2020, 07:43:46 pm »
Kitchen table sounds great :) Ahaha
I've sent a message to Rigol. Will waiting for a reply. Keep you posted, guys.
 

Offline NoisyBoy

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #146 on: June 18, 2020, 09:27:05 pm »
I discovered MSO5000 is indeed susceptible to electrical noise and RF interference, you can look up our discussion on phantom channels if you want to read more.  In my case, my WiFi was creating enough noise to turn random channels on when I pressed the Auto button.  I think this is due to inadequate shielding on the front end, as the shield has an opening to expose the heat sink when compared to the 7000, so definitely move the scope to a spot far from any electrical or RF noise while you do your calibration as it can really mess the calibration up.

You should also take noise into consideration when you do your final placement in your lab. 

 

Offline noreply

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #147 on: June 19, 2020, 01:23:55 am »
I discovered MSO5000 is indeed susceptible to electrical noise and RF interference ..

Thanks for the 'heads-up' on this  :)

I still have not fully deployed my new 5074, but when I do - I will do some specific testing.

Having a SSA (now SVA) and multiple 'controlled' RF generators - I should be able to see what level of RF and perhaps what Freq the MSO5000 is sensitive  ;)
 

Offline Sighound36

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #148 on: June 19, 2020, 04:47:13 am »
I know a few chaps have suffered from this with the 5000, we have not at all on any of 5/7 and 8000 Rigol models.
While you firing your rf pulses around noreply and checking for various anomalies do hook up your 5000 to SA directly from say port one and set for a general 7.5Ghz sweep and have a look for anything interesting?
Seeking quality measurement equipment at realistic cost with proper service backup. If you pay peanuts you employ monkeys.
 

Offline noreply

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #149 on: June 19, 2020, 08:20:43 am »
... and set for a general 7.5Ghz sweep ...

I wish (he says with envy) - not all of us are as fortunate to enter the 7.5Ghz club :P
 


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