RIGOL DS1102Z-E

[svetlov]

 

BTW2: I find the Multipurpose Knob very sensitive... Often changing the selection during enter/press
 you can replace the encoder yourself! this video shows in great detail how to do it
in order to understand the narrator - click the subtitle icon - then go to the settings menu - click there subtitles - translation - and select your native language!

[calli]

Great, I planned that some time but was too lazy until now!

C!

[Piton]

I want to ask everyone if this is the case: when the second channel is turned on, the first, together with the second, shifts to the minimum vertical limits, but if you switch both channels to the ground, and then back, then everything falls into place. It is not yet clear why the relay always clicks when the second channel is turned on? There is no such thing with the first one.

[enectromess]

hi, with new firmware v00.06.03.02.02 2021-10-20 my ds1102z-e sometimes don't boot right. (I think the cause is new firmware but I'm not sure) I have to measure voltages at the connector. Work in progress.

[enectromess]

Voltages seem ok. PSU is based on LD7575 (current-mode PWM controller) + 2SK3569 (power mosfet) also PCB seems quite neat. well welded and well made   

[enectromess]

Seems to be solved. Opened and washed main board with Isopropyl alcohol, recalibrated and a break-in of eight hours always on. 
Seems to be ok. I appreciated the cleanliness and assembly of the components on pcb. Not expensive but really well contructed. 

[Piton]

Interestingly, maybe in my situation it is worth washing the board, especially since there is a suitable moment - I will change the encoder.

[Erikkssen]

Greetings, note that in oscilloscope mainboard there are no electrolytic capacitors. Instead there are tantalum polymer capacitors. Someone says that those are not so reliable as electrolytics.    (compare with keysigh teardown and others)

[Fungus]

Someone says that those are not so reliable as electrolytics.

Who says that?

Electrolytics are almost guaranteed to dry up with age, those are probably more reliable.

https://www.google.com/search?q=polymer+tantalum+capacitor+reliability

[DragonTHB]

Hello,

i am a little confused.

The input can messure up to 300v.
The probe can 1:1 and 1:10.

Can i messure 3kv with this RIGOL or just 300V ??
Because the instruction says the Probe can just 300 volts ?

[Fungus]

Can i messure 3kv with this RIGOL

You can if you get a properly rated high-voltage probe.

The standard ones won't do it.

[TurboTom]

Only make sure you never accidentally activate AC mode on that channel. The probe utilizes the 1MOhm input resistance of the scope as part of the voltage divider. If this is galvanically isolated by a capacitor, application of a high DC voltage will completely drop across the scope's DC block capacitor which may break down (actually, probably something much less troublesome will happen -- the COSMO semiconductor relay that's intalled to bypass the capacitor will zener break down and limit the voltage across the cap, most likely without any damage). But in general, this may lead to a potentially dangerous situation, especially if the DC block bypass is arranged as an electromechanical relay or a plain old switch in the particular scope in use...

[DragonTHB]

Thank you for your answers.

[DragonTHB]

Thank you for your answers.
I just want's to measure 400 volts.
That means when i buy a probe with 10:1 that can handle more than 400volt. Then i get no problem.
I don't know if i should buy this Rigol or a FNIRSI 1014D. But i guess i will buy the Rigol.

[Fungus]

That means when i buy a probe with 10:1 that can handle more than 400volt. Then i get no problem.

I'd buy a fixed 10x probe just to be sure (ie. no little switch to switch to 1x).

Or even a fixed 100x probe, they're much easier to find than 10x probes and usually have a higher voltage rating.

[PatrickB]

Hello,
With my DS1102Z-E scope, the brightness of the waveform decreases sharply when the time base is 5ns. At 10 ns and above or at 2 ns, the brightness is normal, strange!
Do you have this problem with this scope or have you heard of this problem?
The firmware version is 00.06.3 SP2 and board version 0.0.1
Do you think it's a hardware problem with this board version?
Bye

[lexvts]

Hello! A similar situation, even saves a picture with the same dim beam, in the PC program the beam for 5Ns is already normal. More likely, it's the firmware. The support service is not responding.

[Fungus]

This isn't a CRT. Trace brightness is done in software.

[RogerG]

Hello,

I own a brand new DS1102Z-E since a few weeks and tried to replace this horrible, non-indexed multipurpose encoder. I found the Bourns PEC11R-4215F-S0024 (24 positions) recommended at a german youtube channel, which is nicely indexed. But with this encoder the Scope always triggers the menu twice, so it jumps over one menu item .

Any other suggestions for the correct encoder? The Alps that is often discussed seems to be discontinued. It should be for SMD mount, but thats not mandatory.

Thanks in advance!

Regards from germany
Roger

[Piton]

Hello. I also tried cheap Chinese encoders of the EC11 series, but they do not work well, skip and jump. Bought at local store EC11J1524413. Works as it should, but is a bit stiff when shifting and needs some mechanical tweaking.

[Fungus]

Hello,

I own a brand new DS1102Z-E since a few weeks and tried to replace this horrible, non-indexed multipurpose encoder. I found the Bourns PEC11R-4215F-S0024 (24 positions) but with this encoder the Scope always triggers the menu twice, so it jumps over one menu item .

Any other suggestions for the correct encoder?

Presumably you want the one with less pulses:  Bourns PEC11R-4215F-S0012

https://www.bourns.com/docs/product-datasheets/pec11r.pdf

[RogerG]

@Piton
Has your Alps 15 pulses per revolution?

@Fungus
I think you're right. I'll try one with lower pulse rate. But 12 is much less than my original 20 pulses...

[Fungus]

@Fungus
I think you're right. I'll try one with lower pulse rate. But 12 is much less than my original 20 pulses...

Read the datasheet: It still has 24 detents, just less pulses.

[Piton]

RogerG, I don't know, I bought it at random and it works

[RogerG]

Thx