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#125 Reply
Posted by
ve2mrx
on 05 Jun, 2020 01:53
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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
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#126 Reply
Posted by
Fungus
on 05 Jun, 2020 07:47
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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...
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.
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#127 Reply
Posted by
Sighound36
on 05 Jun, 2020 08:39
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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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#128 Reply
Posted by
Gandalf_Sr
on 05 Jun, 2020 19:22
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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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#129 Reply
Posted by
Axk
on 05 Jun, 2020 23:00
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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
)
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#130 Reply
Posted by
ve2mrx
on 05 Jun, 2020 23:38
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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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#131 Reply
Posted by
NoisyBoy
on 05 Jun, 2020 23:48
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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...
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.
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#132 Reply
Posted by
Axk
on 06 Jun, 2020 00:42
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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).
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#133 Reply
Posted by
ve2mrx
on 06 Jun, 2020 01:23
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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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#134 Reply
Posted by
Gandalf_Sr
on 06 Jun, 2020 10:25
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I don't have a very sensitive sense of smell but my MSO5074 doesn't smell at all IMHO.
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#135 Reply
Posted by
macaba
on 07 Jun, 2020 12:21
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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.
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.
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#136 Reply
Posted by
AlexS
on 15 Jun, 2020 19:58
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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
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#137 Reply
Posted by
Martin72
on 15 Jun, 2020 20:17
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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.
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#138 Reply
Posted by
tautech
on 15 Jun, 2020 21:17
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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.
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#139 Reply
Posted by
AlexS
on 15 Jun, 2020 23:11
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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?
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#140 Reply
Posted by
Gandalf_Sr
on 15 Jun, 2020 23:36
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Did you run a self calibration?
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#141 Reply
Posted by
AlexS
on 16 Jun, 2020 07:35
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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.
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#142 Reply
Posted by
AlexS
on 16 Jun, 2020 07:38
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That’s very strange. DS1054z showing normal data - everything perfect. Higher model MSO showing incorrect. Paradox. Ahah
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#143 Reply
Posted by
TK
on 16 Jun, 2020 12:27
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Maybe it is the opposite. You need a third scope to compare
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#144 Reply
Posted by
ve2mrx
on 16 Jun, 2020 13:42
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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?
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#145 Reply
Posted by
AlexS
on 18 Jun, 2020 19:43
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Kitchen table sounds great
Ahaha
I've sent a message to Rigol. Will waiting for a reply. Keep you posted, guys.
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#146 Reply
Posted by
NoisyBoy
on 18 Jun, 2020 21:27
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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.
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#147 Reply
Posted by
noreply
on 19 Jun, 2020 01:23
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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
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#148 Reply
Posted by
Sighound36
on 19 Jun, 2020 04:47
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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?
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#149 Reply
Posted by
noreply
on 19 Jun, 2020 08:20
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... 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
