Rigol DS Demo User manual

Rigol DS Demo Guide:

Date: 02.06.2014

Basic Demonstration

Items needed:

1 DS1Z, DS2, DS/MSO4, or DS6000 Series Scope

2 Probes

Qty 1 DS6000 Demo Board

USB memory stick files

Optional items:

DG1000, DG4000 or DG5000 Arb/Function Generator

1. Initial Setup and Demo

Start by connecting the two probes to the 2 channels and connect each to the square wave

generator on the front of the scope.

View the square waves by pushing “AUTO”. After a few seconds you should see this:

Single Wave (F1)

Multiple Wave (F2)

Rising Edge (F3)

Falling Edge (F4)

When the “AUTO” Menu is up just after auto has completed you will see options for looking at

multiple waves, single wave, rising edge, or falling edge. That is how the AUTO function works.

Whenever you get into trouble or don’t know what you are looking at you can hit AUTO and it

will usually find the meaningful signal.

If you still have trouble after that you can go to “SAVE” -> from the “MENU” soft key press it

and select FACTORY (F7) . Once FACTORY is pressed this will reload all factory settings and

you will recover from whatever settings were altered.

2. Sampling & Memory Depth Demonstration

After AUTO, we can easily demonstrate the Sampling and Memory Depth features.

Push “CH 2” twice so the light turns off and only channel 1 is shown.

Turn the Horizontal (time) knob until Time is set to 200 ms / div. This is a slow setting

and it looks like hash because the wave is going much faster. Then push the horizontal

knob. This enters zoom mode. We can now zoom in on the signal using the Horizontal

knob. When you zoom down to a 5 us / div window you should see this:

2 things to note in this image:

One: we are looking at just a sliver of our captured wave (the little black slice between the blue

bars on top).

Two: you can see the straight line in the zoom because there are no data points between that

time.

*Here is the math for those so inclined: DS6000 has 140Mpts per wave in normal mode so in

the full window you see 200 ms/div and 14 div = 2.8 sec of data. Divide that by 70 M points and

you get a point every 40 nsec or so. Just about what we are seeing above.

Turn the horizontal scale knob to 200ns/div you should see the signal change to this:

Push ACQ‐> and Mem Depth , then change from Auto to 14kPoint and switch between

140MKPoints and 14kPoint. That curve with 140MPoint is much more appropriate. So if

there was an event happening at even µsec timing you can miss it without deep memory.

This is especially true when you need to capture or trigger on data over a longer period of

time.

NOTE: You can also use the UltraVision Multifunction knob to scroll slowly or more quickly

through the waveform. The outer ring will fast-forward and rewind. The inner knob allows you

to scroll more slowly.

3. Measurement Demo

Start from an AUTO setup on the square wave signal.

Push MEAS then press the Menu button on left upper corner. Now the Quick

Measurement Menu appears.

You can change the waveform source by pressing the channel key on the front panel

(CH1, CH2, ..) By changing the Source from CH2 to CH1 you will see that the color will

change from blue to yellow. On the left side you can now select up to 5 items that will be

displayed on the bottom line.

Switch from frequency to voltage measurement, push the measurement Menu bottom

again.

Push All Measure Source and selecting CH1 and CH2 and set Display All to ON, you

will see this:

You can also show measurements between cursors… press Measurement > Down Arrow >

Meas. Range and select Cursor region. This can be helpful in Zoom mode, as you can measure

on the zoomed portion of the waveform of interest and get more detail.

4. Cursors

You can also set up a single measurement like FREQUENCY and then set the cursor to AUTO.

The AUTO cursor takes the last measurement and places the cursor on the screen to show how it

is making that measurement. This is an easy and great way to align cursors and highlight

characteristics of a signal for review or reporting.

Press MEAS, press Clear and select All Item to Delete, then add FREQUENCY as the

only measurement. That should display on the screen. Then push CURS and set mode to

AUTO. It should now look like this:

The cursor is locked to the zero crossing showing the time between consecutive waves.

You can also show the TRACK and MANUAL modes of the CURSOR.

Use the menu KNOB to move the cursor position.

In MANUAL mode note that you can use the soft keys to highlight Cursor A,Cursor B, or

Coursor AB. This determines which cursors will move with the knob. If you haven’t

shown the RECORDING & PLAYBACK yet, this is a great time to show the SINC or

SINE wave signals and you can use the cursors on the recorded data. That is a great way

to do post‐analysis of signals.

5. Reference Waveform

Sometimes, it is useful to have reference signals available on the screen. This can help designers

see how changes they make can effect the output of a circuit or design. It can also be helpful for

EMC and Compliance Engineers to capture different characteristics before and after changes

have taken place. The Reference Waveform function can help by capturing a trace and displaying

it along with newly captured data.

Press AUTO and select single

Push REF (below or next to the CH buttons on most scopes). Select SAVE. Note that you

can save and reload References from internal or external memory. This is a great way to

compare traces between scopes or to use as a guide for verification testing. Once saved,

the reference will appear as a white trace that you can then visually compare to live

signals on any channel. It looks like this:

6. FFT

One great feature available on all the scopes is FFT (Fast Fourier Transform). This provides a

basic Frequency domain measurement of a signal.

Push MATH and select FFT as the function

Select CH 1 as the source

Use the VERT and HORIZ knobs to set the scaling appropriately. If you do an FFT on the

square wave you should see a primary frequency at 1 KHz and harmonics at 3,5,7,…

KHz respectively like this:

7. PASS/FAIL Measurements

You can use Pass/Fail measurements for a number of applications. With Rigol scopes you can set

it up to stop or continue when there is a failure or a pass, you can set the output to be the speaker

through the optically isolated output on the rear of several models or both, you can create masks

with varying error budgets around a target signal, and you can even use the record mode to

record all the failures as frames. In this way, you could set up a test over night, let it run, and

come back and have all the failure states recorded for you.

PASS/FAIL push UTIL and push PASS/FAIL.

Set Enable to ON, automatically a mask will be created.

To change the mask parameter use X mask and Y mask and then press CREATE MASK.

You can turn on the Msg Display and then press OPERATE.

You will now see the Total Wfs counter counting up. If you remove the signal or adjust

the probe attenuation switch you can cause failures. If you set it to stop on the failure you

will see something like this:

8. Record Mode

This mode can be used to capture a large number of single waveforms and allows you to play

back and/or analyze them. It is basically stacking bitmap images of each triggered event in

memory. They can then be reviewed frame-by-frame or contiuously, like a movie.

To activate this mode press UTIL and Record, then set the Mode to Record

Press the Operate soft key the recording will start

By selecting the play back mode you can run captured signal again

You can play the record from and selected Start Frame to an End frame with a tunable

interval or scroll per Knob over the selected frames

Another feature is the Analyze function, available by choosing ModeAnalyze. By

pushing Setup Template and pressing Start you recorded waveform will be analyzed

You can also use Previous and Next buttons to select only the “failed” frames within the

recording

In addition, you can use the UltraVision Multifunction knob to scroll slowly or more

quickly through the waveform. The “Stop”, “Play/Pause”, and “Record” keys located

below the UltraVision Multifunction Knob are also active in these modes. They can be

used to quickly capture and view new frames.

In Playback mode, you can set the speed of playback between frames quickly using the

UltraVision Knob. The outer ring makes the interval increase quickly. 500ms/frame is a

good start.

You can enable timestamps in Playback mode as well. The “TimerTag” needs to be

enabled on page 2/2 of the Record menu.

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