New Rigol DS1054Z oscilloscope

[donmr]

Does anyone know why I might be getting out of phase glitches that appear on the screen when measuring say a 10 KHz sine wave from an audio source?
The problem sometimes goes away if I use the small metal spring instead of the aligator clip for grounding. Can it be a problem with the amplifier or is it a loose connection? I'm confused.

If you see these glitches when you use the ground wire (several inches long) and not with the short spring clip ground then the most likely cause is that you are receiving some RF signal with that ground wire acting as an antenna.

One quick way to check for this is to clip the ground clip to the tip of the probe and hold it near your circuit, but not touching anything.  If you still see the glitches then they are coming through the air (as RF) from somewhere.  Move the probe around and see if the source is nearby or farther away.

You can also try turning off (and unplugging) devices to see if the glitches go away then.

[Tainer]

Does anyone know why I might be getting out of phase glitches that appear on the screen when measuring say a 10 KHz sine wave from an audio source?

This may not be related to your phase glitches, but I noticed an issue with one of the probes.
Most of the time I set the probes to x1 attenuation, since I don't need the bandwidth. I noticed that sometimes the amplitude suddenly starts to drop/bounce. When I switch to x10 the problem goes away. I think the attenuation switch is a bit dicky.  I made a couple of tests to make sure it's not a bad connection and I'm pretty confident that the switch is to blame.

[drummerdimitri]

Does anyone know why I might be getting out of phase glitches that appear on the screen when measuring say a 10 KHz sine wave from an audio source?

This may not be related to your phase glitches, but I noticed an issue with one of the probes.
Most of the time I set the probes to x1 attenuation, since I don't need the bandwidth. I noticed that sometimes the amplitude suddenly starts to drop/bounce. When I switch to x10 the problem goes away. I think the attenuation switch is a bit dicky.  I made a couple of tests to make sure it's not a bad connection and I'm pretty confident that the switch is to blame.

I am using the probe with x10 attenuation. It must be something else.

[smgvbest]

It doesn't help when every request shows PM sent instead of how to get it.

True.  I was able to get it quickly by opening a chat session at the site.  I'm guessing there's a rule about posting it in the forum (maybe to encourage registration), but it's certainly not a closely guarded secret.

Can you please PM me the Rigol code? Thanks!

PM Sent

[yeltrow]

May I please also have the discount code? 

[nanofrog]

May I please also have the discount code?

PM sent.

[ishmael1851]

Hi, could I have the discount code for tequipment.com as well?  Does it apply to the DS2000 series?  And is it only valid outside the US?  Thanks!

[nanofrog]

Hi, could I have the discount code for tequipment.com as well?  Does it apply to the DS2000 series?  And is it only valid outside the US?  Thanks!

Yes, it will apply to the DS2000 series. PM sent.

FWIW, there's a dedicated thread for the code.

[vacaloca]

I didn't find the dedicated thread. Could you post a nudge and/or PM discount code? Thanks!

[nanofrog]

I didn't find the dedicated thread. Could you post a nudge and/or PM discount code? Thanks!

Searching "Tequipment code" or "Tequipment thread", would have gotten what you wanted, including the thread Special Price FOR EEVblog Members. 

PM sent.

[gmit77]

for EU people we will have stock starting this Friday:
RIGOL DS1054Z http://www.batterfly.com/shop/rigol-ds1054z
BUNDLE RIGOL DS1054Z + HAKKO FX888D http://www.batterfly.com/shop/bundle-ds1054z-fx888d
BUNDLE RIGOL DS1054Z + SALEAE LOGIC 4 http://www.batterfly.com/shop/bundle-ds1054z-logic4

HOPE IT HELPS

CIAO 

[Bryan]

Is the DS1054Z in stock at TEquipment?

What is the best place to buy one in Canada?

rigolcanada.com or http://www.electro-meters.com

Prices from electro-meter seem fair. Has anybody ordered from them before?

[BlueBill]

Is the DS1054Z in stock at TEquipment?

What is the best place to buy one in Canada?

rigolcanada.com or http://www.electro-meters.com

Prices from electro-meter seem fair. Has anybody ordered from them before?

Yep, no problem. They're out in Pickering, more an office than a store. Call them ahead if you want to pickup and pay on CC.

[Bryan]

Thanks, on the West Coast. Will give them a call. Assume they are the authorized dealers for Rigol if any issues.

[BlueBill]

Thanks, on the West Coast. Will give them a call. Assume they are the authorized dealers for Rigol if any issues.

I think they're the only Rigol dealer in Canada. Their Rigol site is www.rigolcanada.com

[Paul Moir]

RAE out here on the East coast.  I haven't checked their Rigol prices lately, but I remember a while ago they seemed good.

EDIT:  I guess TMetrix too.
 

[Didix]

Do the 4 channels share a same ground?

Or are the 4 channel working as independent differential inputs that float in respect to each other?

-Didix

[rob77]

Do the 4 channels share a same ground?

Or are the 4 channel working as independent differential inputs that float in respect to each other?

-Didix

same ground for all 4 channels - same as the majority of the scopes to get a floating input you need a differential probe.

[miguelvp]

Do the 4 channels share a same ground?

Or are the 4 channel working as independent differential inputs that float in respect to each other?

-Didix

same ground for all 4 channels - same as the majority of the scopes to get a floating input you need a differential probe.

Or detach the ground clips in two probes and use the probes and math function CH1-CH2 (A-B) for example, as a differential probe, but the math function in the ds2000 is a bit slow, so it's probably as slow in the DS1054Z.

By slow I don't mean that you will loose the signals, but the display will lag displaying the output if trying to look at the signal "live"

[rob77]

Do the 4 channels share a same ground?

Or are the 4 channel working as independent differential inputs that float in respect to each other?

-Didix

same ground for all 4 channels - same as the majority of the scopes to get a floating input you need a differential probe.

Or detach the ground clips in two probes and use the probes and math function CH1-CH2 (A-B) for example, as a differential probe, but the math function in the ds2000 is a bit slow, so it's probably as slow in the DS1054Z.

By slow I don't mean that you will loose the signals, but the display will lag displaying the output if trying to look at the signal "live"

yes, that's a OK, but you have to keep the input rating in mind... it's 300V CAT I for the DS1054Z, so you can't probe anything directly connected to mains (you can't probe the primary side of a SMPS for example).
with a diff probe you can have higher rating - 500V CAT II is good enough. (and therefore you can probe the primary side of a SMPS for example).

[Fungus]

Do the 4 channels share a same ground?

Or are the 4 channel working as independent differential inputs that float in respect to each other?

same ground for all 4 channels - same as the majority of the scopes

And also connected to mains ground - watch out where you connect the ground clip of your probes!

[Didix]

Do the 4 channels share a same ground?

Or are the 4 channel working as independent differential inputs that float in respect to each other?

same ground for all 4 channels - same as the majority of the scopes

And also connected to mains ground - watch out where you connect the ground clip of your probes!

YEP! with my old analog scope I just vaporized a fuse of a power supply due to that fact.
Thats' why I am looking for something that floats 
I just use it on my bench. Nothing higher than 24VAC.

-Didix

[Didix]

Do the 4 channels share a same ground?

Or are the 4 channel working as independent differential inputs that float in respect to each other?

-Didix

same ground for all 4 channels - same as the majority of the scopes to get a floating input you need a differential probe.

Or detach the ground clips in two probes and use the probes and math function CH1-CH2 (A-B) for example, as a differential probe, but the math function in the ds2000 is a bit slow, so it's probably as slow in the DS1054Z.

By slow I don't mean that you will loose the signals, but the display will lag displaying the output if trying to look at the signal "live"

Is that math function included in the basic package of the DS1054Z?

-Didix

[Datman]

NOISY... 

Hi all
I have received my new DS1054Z just yesterday.
I noticed some noise on the track. It's still there also with the inputs set to GND... Sometimes I can see little rectangular waves, other times sawtooth, sometimes I see 3mm of noise also in 1V/div. If I do something, then I come back, sometimes track become thin, with only a little, acceptable noise.

Do anyone have a similar problem on his DSO? Do you have some hints?

Thanks!!!

[nanofrog]

Now I noticed some noise on the track. It's go there also with the inputs set to GND... If I have to return it I have to reset options! How can I do it? Do you have some hints?

Use the SCPI command :SYSTem:OPTion:UNINSTall, then reboot the oscilloscope.