RIGOL
User’s Guide
MSO8000 Series Dig ital
Oscilloscope
Jul. 2019
RIGOL (SUZHOU) TECHNOLOGIES INC.
RIGOL
Guaranty and Declaration
Copyright
© 2019 RIGOL (SUZHOU) TECHNOLOGIES INC. All Rights Reserved.
Trademark Information
RIGOL is a registered trademark of RIGOL (SUZHOU) TECHNOLOGIES INC.
Publication Number
UGA26102-1110
Software Version
00.00.00.04.00
Software upgrade might change or add product features. Please acquire the latest
version of the manual from RIGOL we bsite or contact RIGOL to upgrade the
software.
Notices
RIGOL produ cts are cov ered by P.R.C. and f oreign pa tents, issue d and pendin g.
RIGOL reserves the right to modify or change parts of or all the specifications
and pricing policies at the company’s sole decision.
Information in this publication replaces all previously released materials.
Information in this publication is subject to change without notice.
RIGOL shall not be liable for either incidental or consequential losses in
connection with the furnishing, use, or performance of this manual, as well as
any information contained.
Any part of th is d ocu ment is f orbi dden to be c opie d, ph oto copie d, o r rea r ran ged
without prior written approval of RIGOL.
Product Certification
RIGOL guarantees that this product conforms to the national and industrial
standards in China as well as the ISO9001:2015 standard and the ISO14001:2015
standard. Other international standard conformance certifications are in progress.
Contact Us
If you have any problem or requirement when using our pro du cts or this man ual,
please contact RIGOL.
E-mail: service@rigol.com
Website: www.rigol.com
MSO8000 User's Guide I
RIGOL
Safety Requirement
General Safety Summary
Please review the following safety pre cautio ns ca refully before putting the
instrument into operation so as to avoid any personal injury or damage to the
instrument and any product connected to it. To prevent potential hazards, please
follow the instructions specified in this manual to use the instrument properly.
Use Proper Power Cord.
Only the exclusive power cord designed for the instrument and authorized for use
within the local country could be used.
Ground the Instrument.
The instrument is grounded th rou gh t he Protective Earth lead of the power cord. To
avoid electric shock, connect the earth terminal of the power cord to the Protective
Earth terminal before connecting any input or output terminals.
Connect the Probe Correctly.
If a probe is used, the probe ground lead must be connected to earth ground. Do not
connect the ground lead to hi gh volta ge. Imp roper w ay of connection could resul t in
dangerous voltages being present on the connectors, controls or other surfaces of
the oscilloscope and probes, which will cause potential hazards for operators.
Observe All Terminal Ratings.
To avoid fire or shock hazard, observe all r atings an d markers on the instrume nt and
check your manual for more information about ratings before connecting the
instrument.
Use Proper Overvoltage Protection.
Ensure that no over voltage (su ch as that cause d by a bolt of lightni ng) can reach the
product. Otherwise, the operator might be exposed to the danger of an electric
shock.
Do Not Operate Without Covers.
Do not operate the instrument with covers or panels removed.
Do Not Insert Objects Into the Air Outlet.
Do not insert anything into the holes of the fan to avoid damaging the instrument.
Use Proper Fuse.
Please use the specified fuses.
II MSO8000 User's Guide
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Avoid Circuit or Wire Exposure.
Do not touch exposed junctions and components when the unit is powered on.
Do Not Operate With Suspected Failures.
If you suspect that any damage may occur to the instrument, have it inspected by
RIGOL authorized personnel before further operations. Any maintenance,
adjustment or replacement especially to circuits or accessories must be performed
by RIGOL authorized personnel.
Provide Adequate Ventilation.
Inadequate ventilation may cause an increase of temperature in the instrument,
which would cause damage to the instrument. So please keep the instrument well
ventilated and inspect the air outlet and the fan regularly.
Do Not Operate in Wet Conditions.
To avoid short circuit inside the instrument or electric shock, never operate the
instrument in a humid environment.
Do Not Operate in an Explosive Atmosphere.
To avoid personal injuries or damage to the instrument, never operate the
instrument in an explosive atmosphere.
Keep Product Surfaces Clean and Dry.
T o a void dust or moisture from af fecting the pe rformance of the inst rument, keep th e
surfaces of the instrument clean and dry.
Prevent Ele c tr o static Imp a ct.
Operate the instrume nt i n an el ectr ostatic dischar ge protectiv e e nvi ron ment to a void
damage induced by static discharges. Always ground both the internal and external
conductors of cables to release static before making connections.
Use the Battery Properly.
Do not expose the battery (if available) to high temperature or fire. Keep it out of the
reach of children. Improper change of a battery (lithium battery) may cause an
explosion. Use the RIGOL specif ie d ba ttery only.
Handle with Caution.
Please handle with care during transportation to avoid damage to keys, knobs,
interfaces, and other parts on the panels.
MSO8000 User's Guide III
RIGOL
WARNING
avoided, will result in serious injury or death.
CAUTION
avoided, could result in damage to the product or loss of important data.
DANGER
It calls attention to an operation, if not correctly performed, could
result in injury or hazard immediately.
WARNING
It calls attention to an operation, if not correctly performed, could
result in potential injury or hazard.
CAUTION
It calls attention to an operation, if not correctly performed, could
product.
Hazardous
Voltage
Safety Warning
Protective Earth
Terminal
Chassis Ground
Test Ground
Safety Notices and Symbols
Safety Notic e s in this Manua l:
Indicates a potentially hazardous situation or practice which, if not
Indicates a potentially hazardous situation or practice which, if not
Safety Terms on the Product:
result in damage to the product or other devices connected to the
Safety Symbols on the Product:
IV MSO8000 User's Guide
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WARNING
measurement categories.
WARNING
keep the instrument well v entilat ed and ins pect the a ir outlet an d the fan
regularly.
Measurement Category
Measurement Category
MSO8000 series digital oscilloscopes can make measurements in Measurement
Category I.
This oscilloscope can only be used for measurements within its specified
Measurement Category Definitions
Measurement category I is for measurements performed on circuits not directly
connected to MAINS. Examples are measu re me n t s on circuits not derived f rom
MAINS, and specially protected (internal) MAINS derived circuits. In the latter case,
transient stresses are variable. Thus, you must know the transient withstand
capability of the equipment.
Measurement category II is for measurements performed on circuits directly
connected to low voltage installation. Examples are measurements on household
appliances, portable tools and similar equipment.
Measurement category III is fo r measure ments perf ormed in the b uilding inst allation.
Examples are measurements on distribution boards, circuit-breakers, wiring
(including cables, bus-bars, junction box es, switches and so cket -outlets) in th e fixed
installation, and equipment for industrial use and some other equipment. For
example, stationary motors with permanent connection to a fixed installation.
Measurement category IV is for measurements performed at the source of a
low-voltage installation. Examples are electr ic ity meters and measurements on
primary overcurrent protection devices and r ipple control units.
Ventilation Requirement
This oscilloscope uses a fan to force c ooling. Please make su re that the air intak e and
exhaust areas are free from obstructions and have free air. When using the
oscilloscope in a bench-top or rack setting, provide at least 10 cm clearance beside,
above and behind the instrument for adequate ventilation.
Inadequate ventilation may cause an increase of temperature in the
instrument, which would cause damage to the instrument. So please
MSO8000 User's Guide V
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WARNING
operate the instrument in a humid environment.
WARNING
danger of an electric shock.
Working Environment
Temperature
Operating : 0℃ to + 50℃
Non-operating: -30℃ to + 70℃
Humidity
Operating:
Below + 30℃: ≤90%RH (without condensation)
+ 30℃ to + 40℃: ≤75% RH (without condensation)
+ 40℃ to + 50℃: ≤45% RH (without condensation)
Non-operating:
Below 65℃: ≤90% RH (without condensation)
To avoid short circuit inside the instrument or electric shock, never
Altitude
Operating: below 3 km
Non-operating: below 15 km
Installation (Overvoltage) Category
This product is powered by mains conforming to installation (overvoltage) category
II.
Ensure that no overvoltage (such as that c aused by a bolt of lightning)
can reach the product. Otherwise, the operator might be exposed to the
Installat io n (Overvoltage) Catego ry Definitions
Installation (overvoltage) category I refers to signal level which is applicable to
equipment measurement terminals connected to the source circuit. Among these
terminals, precautions are done to limit the transient voltage to a lo w level.
Installation (overvoltage) category II refers to the local power distribution level
which is applicable to equipment connected to the AC line (AC power).
Pollution Degree
Pollution Degree 2
Pollution Degree Definition
Pollution Degree 1: No pollution or only dry, nonconductive pollution occurs. The
VI MSO8000 User's Guide
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CAUTION
WARNING
supply.
pollution has no effec t. For example, a clean room or air-conditioned office
environment.
Pollution Degree 2: Normally only nonconductive pollution occurs. Temporary
conductivity caused by condensation is to be expec ted. For example, indoor
environment.
Pollution Degree 3: Conductive pollution or dry nonconductive pollution that
becomes conductive due to condensation occurs. To be found in industrial
environment or construc tion sites (harsh environments). For example, sheltered
outdoor environment.
Pollution Degree 4: The pollution generates persistent conductivity caused by
conductive dust, rain, or snow.
For example, outdoor areas.
Safety Class
Class 1 – Grounded Product
Care and Cleaning
Care
Do not store or leave the instrument where it may be exposed to direct sunlight for
long periods of time.
Cleaning
Clean the instrument regular ly according to its operating conditions.
1. Disconnect the instrument from all power sources.
2. Clean the external surfaces of the instrument with a soft cloth dampened with
mild detergent or water. When cleaning the LCD, take ca re to av oid scarifyin g it.
MSO8000 User's Guide VII
To avoid damage to the instrument, do not expose it to caustic liquid s .
To avoid short-circuit resulting from moisture or personal injuries, ensure
that the instrument is completely dry before connecting it to the power
RIGOL
Environmental Consideratio ns
The following symbol indicate s th at th is product compli es w ith the WEEE Directive
2002/96/EC.
Product End-of-Life Handling
The equipment may contain substances that could b e harmf ul to t he envi ronm ent o r
human health. To avoid the release of such substances into the environment and
avoid harm to human health, we recommend you to recyc le this product
appropriately to ensure that most materials are reused or recycled properly. Please
contact your local authorities for disposal or recycling information.
You can click on the following link
http://www.rigol.com/Files/RIGOL_RoHS2.0&WEEE.pdf to download the latest
version of the RoHS&WEEE certification file.
VIII MSO8000 User's Guide
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MSO8000 Series Overview
MSO8000 series is a medium a nd hi gh-end mix ed signal digital oscilloscope designe d
on the basis of the ASIC chip (RIGOL self-owns its intellectual property right) and
UltraVision II technical platform developed by RIGOL. Integrating 7 independent
instruments into one, the MSO8000 series is equipped with the analog bandwidth of
up to 2 GHz, extremely high memory depth o f 500 Mpts, sound waveform disp lay
effects, excellent w avef orm capture rat e, and powerful data ana lysis f unctions. Man y
of its specifications have reached the top level in the industry. Meanwhile, it supports
the real-time eye diagram measurement and jitter analysis. Its cost-effective
features and high per formance make it prominent as the 2 GHz mixed signal digital
oscilloscope.
Main Features:
Analog bandwidth: 600 MHz, 1 GHz and 2 GHz (single-channel and half-channel
modes)
4 analog channels, 1 EXT channel, and 16 standard configuration of digital
channels (required to purchase the probe)
Up to 10 GSa/s real-time sample rate
Up to 500 Mpts memory depth (standard)
High waveform capture rate (over 600,000 waveforms per second)
Up to 450,000 fra mes of hardware real-time and ceaseless waveforms recording
and playback functions
Integrates 7 independ ent instruments into 1, including digital oscilloscope,
16-channel logic analyzer, spectrum analyzer, arbitrary waveform generator
(option), digital voltmeter, 6-digit frequency counter and totalizer, and protocol
analyzer (option)
Auto measurement of 41 waveform parameters; full-memory h ar dware
measurement function
A variety of math opera tions, built-in enhanced FFT analysis, and peak search
function
Waveform histo g r am analysis (standar d)
Independent search, navigation keys, and event table
Real-time eye diagram and jitter analysis software (option)
Built-in advanced power analysis software (option)
User-defined one-key quick operation
10.1-inch capacitive multi-touch screen, 256-level intensity grading displa y, with
color persistence
Multiple interfaces available: USB HOST&DEVICE, LAN(LXI), HDMI, TRIG OUT,
and USB-GPIB
Web Control remote command
Unique online version upgrade
Sophisticated and convenient industrial design, easy to operate
MSO8000 User's Guide IX
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Document Overview
Main Topics of this Manual:
Chapter 1 Quick Start
Introduces the preparations before using the oscilloscope and provides a basic
introduction of the instrument.
Chapter 2 To Set the Vertical System
Introduces the vertical system functions of the oscilloscope.
Chapter 3 To Set the Horizontal System
Introduces the horizontal system functions of the oscilloscope.
Chapter 4 To Set the Sample System
Introduces the sample system functions of the oscilloscope.
Chapter 5 To Trigger the Oscilloscope
Introduces the trigger mode, trigger coupling, trigger holdoff, external trigger, and
various trigger types of the oscilloscope.
Chapter 6 Operations and Measurements
Introduces how to make math operation, auto measurement, and cursor
measurement.
Chapter 7 Digital Voltmeter (DVM) and Frequency Counter
Introduces how to use the digital voltmeter and the frequency c o unter.
Chapter 8 Power Analysis (Option)
Introduces the power anal ysis fun ction, analy zes the power qualit y and output ripple
noise of the input power.
Chapter 9 Histogram Analysis
Introduces the histogram analysis function.
Chapter 10 Real-time Eye Diagram and Jitter Analysis (Option)
Introduces the real-time eye diagram and jitter analysis function.
Chapter 11 Digital Channel
Introduces how to use the d igital channels of the mixed signal digital oscilloscope.
Chapter 12 Protocol Decoding
Introduces how to decode the input signal by using those common protocols.
X MSO8000 User's Guide
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Chapter 13 Reference Waveform
Introduces how to compare the input waveform with the r eference waveform.
Chapter 14 Pass/Fail Test
Introduces how to monitor the input signal by using the Pass/Fail test.
Chapter 15 Waveform Recording & Playing
Introduces the waveform recording & playing function.
Chapter 16 Search and Navigation Function
Introduces the navigation function and how t o quickly search the relevant events.
Chapter 17 Display Control
Introduces how to control the display of the oscilloscope.
Chapter 18 Function/Arbitrary Waveform Generator (Option)
Introduces how to use the built-in Function/Arbitrary Waveform Generator option.
Chapter 1 9 Store and Load
Introduces how to store and load; how to carry out disk management.
Chapter 20 System Utility Function Setting
Introduces how to set the remote interfaces and system-related functions.
Chapter 21 Remote Control
Introduces h ow t o control the oscilloscope remotely.
Chapter 22 Troubleshooting
Introduces how to deal with the common failures of the osc illoscope.
Chapter 23 Appendix
Provides the basic inform ation for the options and accessories.
MSO8000 User's Guide XI
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Horizontal Time
Base Knob
Vertical Scale
Knob
POSITION
OFFSET
SCALE
POSITION
Max.
Bandwidth
No. of
Channels
No. of Function/Arbitrar
Channels
No. of
Channels
16 (Required
the probe)
16 (Required
the pro be)
16 (Required
the pro be)
Format Conventions in this Manual:
1. Key
The key on the front panel is denoted by the format of "Key Name (Bold) + Text
Box" in the manual. For example, Utility d enotes the "Utili ty" key.
2. Menu
The menu items are denoted by the format of "Menu Word (Bold) + Character
Shading". For examp le, System denotes the "System" menu item under
Utility.
3. Operation Procedures
denotes the next ste p of o perat ion. F or example, Utility System denotes
that first press Utility, and the n pr e ss the System key.
4. Connector
The connectors on the f ront or rear panel are usually denoted by the format of
"Connector Name (Bold) + Square Bra ckets (Bold)". F or exam ple, [TRIG OUT].
5. Knob
Label Knob Label Knob
Horizontal SCALE
Horizontal
Wave Vertical
Wave Vertical
Horizontal Position
Knob
Waveform Vertical
Scale Knob
Waveform Vertical
Position Knob
Vertical SCALE
Vertical
Trigger LEVEL
Vertical
Offset Knob
Trigger Level
Knob
Multifunction
Knob
Content Conventions in this Manual:
MSO8000 series includes the following models. Unless otherwise specified, this
manual takes MSO8104 as an example to illustrate the functions and operation
methods of MSO8000 series.
Model
MSO8064 600 MHz 4 2 (Opt.)
MSO8104 1 GHz 4 2 (Opt.)
MSO8204 2 GHz 4 2 (Opt.)
Analog
Analog
Waveform Generator
Digital
to purchase
to purchase
to purchase
XII MSO8000 User's Guide
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Manuals of this Product:
Quick Guide, User’s G uide, Programming Guide, Data sheet, etc. For the latest
version of this manual, download it from the official website of RIGOL
(www.rigol.com).
MSO8000 User's Guide XIII
RIGOL Contents
Contents
Guaranty and Declaration ......................................................................... I
Safety Requirement ................................................................................. II
General Safety Summary........................................................................... II
Safety Not ices and Symbols ..................................................................... IV
Measurement Category ............................................................................. V
Ventilation Requirement ............................................................................ V
Working Enviro nment .............................................................................. VI
Care and Cleaning .................................................................................. VII
Environmental Considerations ................................................................. VIII
MSO8000 Series Overview ..................................................................... IX
Document Overview ................................................................................ X
Chapter 1 Qui ck Start ........................................................................ 1-1
General Inspection ................................................................................. 1-2
Appearance and Dim e nsions ................................................................... 1-3
To Prepare for Use ................................................................................. 1-4
To Adjust the Supporting Legs .......................................................... 1-4
To Connect to AC Pow e r ................................................................... 1-4
Turn-on Checkout ............................................................................ 1-5
To Replace the Fuse ......................................................................... 1-5
To Connect the Probe ....................................................................... 1-6
Function Inspection ......................................................................... 1-9
Probe Compensation ...................................................................... 1-10
Front Panel Overview ........................................................................... 1-11
Rear Panel Overview ............................................................................ 1-12
Front Panel Function Overview .............................................................. 1-15
Vertical ......................................................................................... 1-15
Horizontal ..................................................................................... 1-16
Wave ............................................................................................ 1-17
Trigger ......................................................................................... 1-18
Clear ............................................................................................ 1-18
Auto ............................................................................................. 1-18
RUN/STOP .................................................................................... 1-19
Single ........................................................................................... 1-19
Multifunction knob ......................................................................... 1-19
Function Menu .............................................................................. 1-20
Touch Lock Key ............................................................................. 1-20
Quick Key (Shortcut Key) ................................................................ 1-21
User Interface ...................................................................................... 1-22
Touch Screen Controls .......................................................................... 1-26
Tap .............................................................................................. 1-26
Pinch & Stretch ............................................................................. 1-27
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Drag ............................................................................................. 1-27
Rectangle Drawing ......................................................................... 1-27
Parameter Setting Method ..................................................................... 1-29
To Use the Security Lock ....................................................................... 1-30
To Use the Built-in Help System ............................................................. 1-31
To View the Option Information and the Option Installation ...................... 1-32
Chapter 2 To Set the Vertical System ................................................. 2-1
To Enable or Disable the Analog Channel ................................................. 2-2
To Adjust the Vertical Scale .................................................................... 2-3
Vertical Exp ansion ................................................................................. 2-4
To Adjus t the Vertical Offset ................................................................... 2-4
Channel Coupling .................................................................................. 2-5
Bandwidth Limit .................................................................................... 2-6
Probe Ratio ........................................................................................... 2-6
Input Impe da nce ................................................................................... 2-7
Waveform Invert ................................................................................... 2-8
To Set the Probe ................................................................................... 2-8
Passive Probe ................................................................................. 2-9
Active Probe ................................................................................... 2-9
Amplitude Unit ..................................................................................... 2-10
Channel Delay ...................................................................................... 2-10
Offset Cal ............................................................................................ 2-11
Channel Label ...................................................................................... 2-11
Chapter 3 To Set the Horizontal System ............................................. 3-1
To Adjust the Horizontal Time Base ......................................................... 3-2
To Adjust the Horizontal Position ............................................................. 3-3
Delayed Sweep ..................................................................................... 3-4
Chapter 4 To Set the Sample System .................................................. 4-1
Timebase Mode ..................................................................................... 4-2
YT Mode ........................................................................................ 4-2
XY Mode ........................................................................................ 4-2
ROLL Mode .................................................................................... 4-4
Acquisition Mode ................................................................................... 4-5
Normal .......................................................................................... 4-5
Average ......................................................................................... 4-5
Peak .............................................................................................. 4-6
High Resolution .............................................................................. 4-6
Sampling Mode ..................................................................................... 4-7
Sample Rate ......................................................................................... 4-7
LA Sample Rate ..................................................................................... 4-9
Memory Depth ...................................................................................... 4-9
LA Memory De pt h ................................................................................. 4-11
Anti-Aliasing ......................................................................................... 4-11
Horizontal Expansion ............................................................................ 4-11
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Chapter 5 To Trigger the Oscilloscope ................................................ 5-1
Trigger Source ....................................................................................... 5-2
Trigger LEVEL/Threshold Level ................................................................ 5-3
Trigger Mode ......................................................................................... 5-4
Trigger Coupling..................................................................................... 5-6
Trigger Holdoff ....................................................................................... 5-6
Noise Rejection ...................................................................................... 5-7
Trigger Type .......................................................................................... 5-8
Edge Trigger ................................................................................... 5-9
Pulse Trigger ................................................................................. 5-10
Slope Trigger ................................................................................. 5-12
Video Trigger................................................................................. 5-15
Pattern Trigger .............................................................................. 5-17
Duration Trigger ............................................................................ 5-19
Timeout Trigger ............................................................................. 5-22
Runt Tr igge r .................................................................................. 5-23
Window Trigger ............................................................................. 5-25
Delay Trigger ................................................................................ 5-27
Setup/Hold Trigger......................................................................... 5-29
Nth Edge Trigger ........................................................................... 5-32
RS232 Trigger (Option) .................................................................. 5-33
I2C Trigger (Option) ....................................................................... 5-36
SPI Trigger (Option) ....................................................................... 5-39
CAN Trigger (Option) ..................................................................... 5-41
FlexRay Trigger (Option) ................................................................ 5-44
LIN Trigger (Option) ...................................................................... 5-46
I2S Trigger (Option) ....................................................................... 5-49
MIL-STD-1553 Trigger (Option) ....................................................... 5-52
Zone Trigger ........................................................................................ 5-55
Trigger Output Connector...................................................................... 5-57
Chapter 6 Operations and Measurements .......................................... 6-1
Math Operation ...................................................................................... 6-2
Addition .......................................................................................... 6-2
Subtraction ..................................................................................... 6-3
Multiplication ................................................................................... 6-4
Division .......................................................................................... 6-5
FFT ................................................................................................ 6-6
"AND" Operation ........................................................................... 6-10
"OR" Operation ............................................................................. 6-11
"XOR" Operation ............................................................................ 6-12
"NOT" Operation............................................................................ 6-14
Intg.............................................................................................. 6-15
Diff .............................................................................................. 6-16
Sqrt .............................................................................................. 6-17
Lg (Base 10 Exponential) ................................................................ 6-18
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Ln ................................................................................................ 6-19
Exp .............................................................................................. 6-20
Abs .............................................................................................. 6-20
Low Pas s ....................................................................................... 6-21
High Pass ...................................................................................... 6-22
Band Pass ..................................................................................... 6-23
Band Stop ..................................................................................... 6-24
AX+B ............................................................................................ 6-26
Math Operation Label ..................................................................... 6-27
Auto Measurement ............................................................................... 6-28
Quick Measurement after AUTO....................................................... 6-28
Measurement Parameter ................................................................. 6-30
Measurement Settings .................................................................... 6-36
Remove the Measurement Result ..................................................... 6-39
Statistical Function ......................................................................... 6-40
All Measurement ............................................................................ 6-40
Cursor Measurement............................................................................. 6-40
Manual Mode ................................................................................. 6-42
Track Mode ................................................................................... 6-46
XY Mode ....................................................................................... 6-48
Measure Mode ............................................................................... 6-50
Chapter 7 Digital Voltmeter (DVM) and Frequency Counter ............... 7-1
Digital Voltmeter (DVM) ......................................................................... 7-2
To Enable or Disable DVM Measurement............................................ 7-2
To Select the Measurement Source ................................................... 7-2
To Select Measurement Mode ........................................................... 7-3
To Set the Limits ............................................................................. 7-3
Frequency Counter ................................................................................ 7-4
To Enable or Disable the Frequency Counter ...................................... 7-4
To Select the Measurement Source ................................................... 7-4
To Select the Measurement Item ...................................................... 7-4
To Set Resolution ............................................................................ 7-5
To Clear Count ................................................................................ 7-5
To Enable or Disable the Statistical Function ...................................... 7-5
Chapter 8 Power Analysis (Option) ..................................................... 8-1
Power Quality ....................................................................................... 8-2
Ripple .................................................................................................. 8-4
Chapter 9 Histogram Analysis ............................................................ 9-1
To Enable or Disable the Histogram Function ............................................ 9-2
To Select the Histogram Type ................................................................. 9-2
To Select the Histogram Source .............................................................. 9-3
To Select the Measurement Item ............................................................. 9-3
To Set the Histogram Height ................................................................... 9-3
To Set the Histogram Range ................................................................... 9-3
MSO8000 User's Guide XVII
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To Enable or Disable the Statistical Function ............................................. 9-4
To Reset ................................................................................................ 9-4
Chapter 10 Real-time Eye Diagram and Jitter Analysis (Option) ........ 10-1
Real-time Eye Analysis .......................................................................... 10-2
To Enable or Disable the Eye Analysis Function ................................. 10-2
To Select the Eye Source ................................................................ 10-2
To Set the Threshold ...................................................................... 10-3
To Set Cl ock Recovery .................................................................... 10-3
To Enable or Disable the Eye Measurement Result ............................ 10-5
To Reset Color ............................................................................... 10-6
Jitter Analysis ...................................................................................... 10-6
To Enable or Disable the Jitter Analysis Function ............................... 10-7
To Select the Jitter Source .............................................................. 10-7
To Set the Threshold ...................................................................... 10-7
To Set Cl ock Recovery .................................................................... 10-7
To Set the Jitter Measurement ........................................................ 10-7
To Enable or Disable the Jitter Measurement Result ........................ 10-10
To Reset ..................................................................................... 10-10
Chapter 11 Digital Channel ................................................................ 11-1
To Select the Digital Channel ................................................................. 11-2
To Enable/Disable the Digital Channel .................................................... 11-2
To Set the Threshold ............................................................................ 11-3
Auto Arrangement Setting ..................................................................... 11-4
To Set the Waveform Display Size .......................................................... 11-4
To Set the Label ................................................................................... 11-4
Group Setting ...................................................................................... 11-5
Wavefor m Color of the Digital Channel ................................................... 11-6
Chapter 1 2 Protocol Decoding ........................................................... 12-1
Parallel Decoding ................................................................................. 12-2
RS232 Decodi n g (Option) ..................................................................... 12-7
I2C Decoding (Option) ........................................................................ 12-14
SPI Decoding (Option) ........................................................................ 12-18
LIN Decoding (Option) ........................................................................ 12-23
CAN Decoding (Option) ....................................................................... 12-28
FlexRay Decoding (Option) .................................................................. 12-33
I2S Decodin g (Option) ........................................................................ 12-37
1553B Decoding (Option) .................................................................... 12-41
Chapter 13 Reference Waveform ....................................................... 13-1
To Enable Ref Function ......................................................................... 13-2
To Select the Reference Channel ............................................................ 13-2
To Select the Ref Source ....................................................................... 13-2
To Adjus t the Ref Waveform Display ....................................................... 13-2
To Save to Internal Memory .................................................................. 13-3
To Clear the Display of the Reference Waveform ..................................... 13-3
XVIII MSO8000 User's Guide
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To View Details of the Reference Wavef orm ............................................ 13-3
To Reset the Reference Waveform .......................................................... 13-4
Color Setting ........................................................................................ 13-4
Label Setting ........................................................................................ 13-4
To Export to Internal or External Memory ............................................... 13-5
To Import from Internal or External Memory ........................................... 13-5
Binary Data Format (.bin) ...................................................................... 13-5
Binary Header Format .................................................................... 13-6
Chapter 14 Pass/Fail Test ................................................................... 14-1
To Enable or Disable the Pass/Fail Test Function ...................................... 14-2
To Start or Stop the Pass/Fail Test Operation ........................................... 14-2
To Select the Source ............................................................................. 14-2
To Create a Mask.................................................................................. 14-3
To Save a Mask .................................................................................... 14-3
To Lo ad a Mask .................................................................................... 14-3
To Set the Output Form of the Test Results ............................................. 14-4
To Enable or Disable the Display of the Statistics of the Test Results .......... 14-5
Statistics Reset ..................................................................................... 14-5
Chapter 15 Waveform Recording & Playing ........................................ 15-1
Common Settings ................................................................................. 15-2
Record Options .................................................................................... 15-3
Play Options ........................................................................................ 15-4
Chapter 16 Search and Navigation Function ....................................... 16-1
Search Function ................................................................................... 16-2
Navigation Function .............................................................................. 16-4
Chapter 17 Display Control ................................................................. 17-1
To Select the Display Type ..................................................................... 17-2
To Set the Persistence Time .................................................................. 17-2
To Set the Waveform Intensity ............................................................... 17-2
To Set the Screen Grid .......................................................................... 17-3
To Set the Grid Brightness ..................................................................... 17-3
Scale ................................................................................................... 17-3
Color Grade ......................................................................................... 17-4
Waveform Freeze ................................................................................. 17-4
Chapter 18 Function/Arbi tr a r y W aveform Generator (Op tion) ........... 18-1
To Output Bas ic Wavefo r ms ................................................................... 18-2
To Output Sine .............................................................................. 18-2
To Output Square .......................................................................... 18-3
To Output Ramp ............................................................................ 18-4
To Output Pulse ............................................................................. 18-4
To Output DC ................................................................................ 18-5
To Output Noise ............................................................................. 18-5
Sinc .............................................................................................. 18-6
MSO8000 User's Guide XIX
RIGOL Contents
Exp.Rise ....................................................................................... 18-6
Exp.Fall......................................................................................... 18-7
ECG ............................................................................................. 18-7
Gauss ........................................................................................... 18-7
Lorentz ......................................................................................... 18-8
Haversine ..................................................................................... 18-8
To Output the Arbitrary Waveform ......................................................... 18-9
To Load the Channel and Waveform ................................................ 18-9
To Create the Waveform ............................................................... 18-10
To Edit Waveforms ....................................................................... 18-12
Modulation ........................................................................................ 18-13
AM ............................................................................................. 18-14
FM ............................................................................................. 18-15
FSK ............................................................................................ 18-16
Sweep............................................................................................... 18-16
Burst ................................................................................................ 18-18
Chapter 19 Store and Load ................................................................ 19-1
Storage System .................................................................................... 19-2
Storage Type ....................................................................................... 19-2
Load Type ........................................................................................... 19-4
Internal Storage and Load..................................................................... 19-4
External Storage and Load .................................................................... 19-6
Disk Management ................................................................................ 19-6
To Select a File Type ...................................................................... 19-7
To Create a Folder ......................................................................... 19-7
To Delete a File or Folder .............................................................. 19-11
To Copy and Paste a File or Folder ................................................. 19-12
To Rename a File or Folder ........................................................... 19-12
To Clear the Internal Memory Safely .............................................. 19-13
Factory Settings ................................................................................. 19-13
Chapter 20 System Utility Function Setting ....................................... 20-1
Remote Int e rface Configuration ............................................................. 20-2
LAN Configuration ......................................................................... 20-2
To Set mDNS ................................................................................. 20-5
To Set Host Name .......................................................................... 20-5
To Set the GPIB Address ................................................................ 20-6
To Set HDMI ................................................................................. 20-6
USB Connection ............................................................................. 20-6
System-related .................................................................................... 20-7
Beeper ......................................................................................... 20-7
Language ..................................................................................... 20-7
System Informat i on ....................................................................... 20-7
Power On ...................................................................................... 20-7
Power Status ................................................................................. 20-8
Aux Output ................................................................................... 20-8
XX MSO8000 User's Guide
Contents RIGOL
Ref Clo ck ...................................................................................... 20-9
Help ............................................................................................. 20-9
Self-calibration ............................................................................. 20-10
Auto Config ................................................................................. 20-11
Print Setting ................................................................................ 20-11
Email .......................................................................................... 20-12
Key Locker .................................................................................. 20-13
Quick Operation ........................................................................... 20-14
Screen Saver ............................................................................... 20-17
Self-check ................................................................................... 20-18
System Time ............................................................................... 20-19
Default Option ............................................................................. 20-20
Chapter 21 Remote Control ................................................................ 21-1
Remote Control via USB ........................................................................ 21-2
Remote Control via LAN ........................................................................ 21-6
Remote Control via GPIB ....................................................................... 21-7
Chapter 22 Troubleshooting ............................................................... 22-1
Chapter 23 Appendix .......................................................................... 23-1
Appendix A: Accessories and Options ..................................................... 23-1
Append i x B: Warranty ........................................................................... 23-3
Index .............................................................................................. 1
MSO8000 User's Guide XXI
Chapter 1 Quick Start RIGOL
Chapter 1 Quick Start
This chapter introduces the preca utions when using t he oscilloscope for the first time,
the front/rear panels of the oscilloscope, the user interface, touch screen controls,
and how to use the b uilt-in help system.
Contents in this chapter:
General Inspection
Appearance and Dim e nsions
To Prepare for Use
Front Panel Overview
Rear Panel Overview
Front Panel Function Overview
User Interface
Touch Screen Controls
Parameter Setting Method
To Use the Security Lock
To Use the Built-in Help System
To View the Option Information and the Option Installation
MSO8000 User's Guide 1-1
RIGOL Chapter 1 Quick Start
General Inspection
1． Inspect the packaging
If the packa gi ng has be en da m age d, do n ot dis po se t he da m age d pac ka gin g o r
cushioning materials until the shipment has been check ed for completeness an d
has passed both electrical and mechanical tests.
The consigner or carrier shall be liable for the damage to the instrument
resulting from shipment. RIGOL would not be responsible for free
maintenance/rework or replacement of the instrument.
2． Inspect the instrument
In case of any mechanical d amage, missing parts, or failure in passing the
electrical and mechanical tests, contact your RIGOL sales representative.
3． Check the accessories
Please check the accessories according to the packing lists. If the accessories
are damaged or incomple te, please contact your RIGOL sales representative.
1-2 MSO8000 User's Guide
Chapter 1 Quick Start RIGOL
134.2
Appearance and Dimensions
Figure 1-1 Front View Unit: mm
Figure 1-2 Vertical View Unit: mm
MSO8000 User's Guide 1-3
RIGOL Chapter 1 Quick Start
CAUTION
Power Cord Conn e ct or
Supporting Legs
To Prepare for Use
To Adjust the Supporting Legs
Adjust the supporting legs properly to use them as stands to tilt the oscilloscope
upwards for stable p lacement of the oscilloscope as well as better operation and
observation. Users can also fold the supporting legs when the instrument is not in
use for easier storag e or shipment, as shown in Figure 1-3.
(a) T o unfold the supporting legs
(b) T o fold the supporting legs
Figure 1-3 To Adjust the Supporting Leg s
To Connect to AC Power
The input AC power requirements of the oscilloscope are 100~240 V, 45~440 Hz.
Please use the power cord provi ded in the a ccesso ries to con nect the oscilloscope to
the AC power source via the power cord connector, as shown in Figure 1-4.
Figure 1-4 To Connect to AC Power
1-4 MSO8000 User's Guide
To avoid electric shock, ensure that the instrument is correctly grounded.
Chapter 1 Quick Start RIGOL
Tip
ou can also press the Power key at the
lower-left corner of the front panel to turn off the oscilloscope).
Turn-on Checkout
When the oscilloscope is connected to power, press the Power key at the lower-left
corner of the front panel to start the oscilloscope. (You can also pr ess Utility
System Power status, and select "Switch On". After the instrument is
connected to power sour ce, it will start directly. You can also enable t he touch screen
to perform the above operations.) During the start-up process, the buttons on the
front panel are all on for a few seco nds, and the oscilloscope performs a series of
self-tests. After the self-test, the welcome screen is displayed.
Restart and Shutdown:
1. Enable the touch screen and then tap the function navigation icon at
the lower-left corner of the screen to enable the function navigation.
2. Tap the "Restart" icon, and then the "Restart" selection menu is displayed,
as shown in the figure below:
3. If you tap the "Restart" icon
then automatically restart again. If you tap the "Shutdown" icon
oscilloscope is powered off (y
, the oscilloscope will be powered off and
, the
To Replace the Fus e
If you need to replac e the fuse, use only the specified fuse (AC 250 V, T3.15 A; 5.2
mm×20 mm) and perform the following operations (as shown in Figure 1-5):
1． Turn off the instrument, cut off the po wer and remove the power cord.
2． Insert a slotted screwdriver into the slot of the fuse holder to pr y it out.
3． Take out the fuse.
4． Replace the old fuse with a specified fuse.
5． Install the fuse holder.
MSO8000 User's Guide 1-5
RIGOL Chapter 1 Quick Start
WARNING
T o a void electric shock, ple ase ensure that the instru ment has been turned
to the fuse rating.
Fuse Holder
Fuse
Figure 1-5 To Replace the Fuse
off, the power source has been cut off, and the fuse to be used conf orms
To Connect the Probe
RIGOL provides the passive probe, the active probe, and the logic probe for
MSO8000 series. For specific probe models, please refer to
Datasheet
. For detailed technical information of the probes, please r efer to the
specified Probe User’s Guide.
Connect the passive probe:
1. Connect the BNC terminal of the probe to an analog channel input terminal of
the oscilloscope on the front panel, as shown in Figure 1-6.
2. Connect the ground alligator clip or spring of the probe to the circuit ground
terminal, and then connect the probe tip to the circuit point to be tested.
MSO8000 Series
Figure 1-6 To Connect the Passive Probe
After you connect the passive probe, check the probe function and probe
compensation adjustment before making measurements. For detailed procedures,
1-6 MSO8000 User's Guide
Chapter 1 Quick Start RIGOL
refer to "Function Inspection" and "Probe Compensation".
Connect the active probe:
Take RP7150 (active differential probe head) as an example.
1. Connect the probe head to the preamp of the active probe, as shown in Figure
1-7.
Figure 1-7 To Connect the Probe Head to the Preamp of the Active Probe
2. Connect the other en d of t he pream p to an anal og channe l in put terminal of th e
oscilloscope on the fr ont panel, as shown in Figure 1-8. Note that you should
push the probe to the end to ensure that it is tightly connected.
Figure 1-8 To Connect the Active Probe
3. Use the probe auxiliary equipment to connect the probe front to the circuit
under test. For details about the probes, refer to
User's Guide
.
RP7000 Series Active Probe
After connecting the active probe, you can perform probe calibration and offset
voltage adjustment if necessary. For detailed procedures, refer to the "Active
Probe" section.
Connect the logic probe:
1. Connect the output terminal of the logic probe to the digital channel input
terminal on the front panel of the oscilloscope in the correct direction, as shown
in Figure 1-9.
2. Connect the other terminal of the logic probe to the signal terminal under test.
RIGOL's MSO8000 series has a standard configuration of a logic probe RPL2316.
To apply to different application scenarios, RPL2316 provides thr ee connection
MSO8000 User's Guide 1-7
RIGOL Chapter 1 Quick Start
methods to connect the signal under test. For details, refer to
Probe User’s Guide
.
RPL2316 Logic
Figure 1-9 To Connect the Logic Probe
Note:
Before you connect the logic probe to the signal under test, connect logic
probe's adapter provided i n the accessories to its correspondin g chan nel group.
The digital channel input terminal does not support hot pluggi ng . Please do not
insert or pull out the logic probe when the instrument is in power-o n state.
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Chapter 1 Quick Start RIGOL
WARNING
To avoid electric shock wh en using the probe, please make su re that th e
insulated wire of the probe is in good condition. Do not touch the
metallic part of the probe when the probe is connected to high voltage
source.
Compensation Signal Output T ermina l
Function Inspection
1. Press Default on the front panel, then a prompt message "Restore default
settings?" is displayed. Press OK or tap OK to restore the instrument to its
factory default settings.
2. Connect the ground alligator clip of the probe to the "Ground Terminal" as
shown in Figure 1-10 below.
3. Use the probe to connect the input terminal of CH1 of the oscilloscop e and the
"Compensation Signal Output Terminal" of the probe, as shown in Figure 1-10.
Ground Terminal
Figure 1-10 To Use the Compensation Signal
4. Set the probe attenuation to 10X, and then press AUTO.
5. Observe the wavefo rm on the display. In normal condition, the square wavefor m
as shown in Figure 1-11 should be display e d.
Figure 1-11 Squar e Wavefor m Signal
6. Use the same method to test the other channels. If the square waveforms
actually shown do not matc h that in the figure above, please perform "Probe
Compensation" introduced in the next sec tion.
MSO8000 User's Guide 1-9
RIGOL Chapter 1 Quick Start
Tip
probe compensation adjustment and cannot be used fo r cali bration.
Over compensated Perfectly compensated Under compensated
The signal output from the probe compensation connector can only be used for
Probe Compensation
When the probes are used for the f irst time, you should compensate the probes to
make them match the input channels of the oscilloscope. Non-compensated or
poorly compensated probes may cause measurement inaccuracy or errors. The
probe compensation procedures are as follows:
1. Perform Step 1, 2, 3 and 4 specified in "Function Inspection".
2. Check the displayed waveforms and compare them with Figure 1-12.
Figure 1-12 Probe Compensation
3. Use a nonmetallic screwdriver to adjust the low-frequency compensation
adjustment hole on the probe until the waveform is displayed as "Perfectly
compensated" in the figure above.
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Chapter 1 Quick Start RIGOL
No.
Description
No.
Description
1
Capacitive Touch Screen
11
RUN/STOP Key
2
Function Menu Operation
Keys
3
Quick Key (Shortcut Key)
13
Trigger Control System
4
Multifunction Knob
14
Vertical Control System
5
Common Operation Keys
15
Analog Channel Input Terminals
Probe Compensation Signal Output
Terminal/Ground Terminal
7
Horizontal Control System
17
Digital Channel Input Interface
Dual-channel Function/Arbitrary
Terminals
9
Auto Waveform Display Key
19
USB HOST Interface
10
Waveform Control System
20
Power Key
1 2 3
4 5 6 7 8 9 10 11 12 13
20 19 18 17 16 15 14
Front Panel Overview
Figure 1-13 Front Panel
Table 1-1 Front Panel Description
6 Touch Lock Key 16
8 CLEAR Key 18
[1]
Note
MSO8000 User's Guide 1-11
: This function is only available for the model installed with the MSO8000-AWG option.
12 Single Trigger Control Key
Waveform Generator Output
[1]
RIGOL Chapter 1 Quick Start
1 2 3 4 5
11 10 9 8 7 6
Rear Panel Overview
1. Handle
Rotate the handle up r ight to carry the instrument easily. Rotate it
downward if you do not need to carry it.
2. LAN Interface
Connect the instrument to network via this interface. The instrument is in
compliance with the stand ards specified in LXI Device Specification 2011. It
can be used to set up a test system.
When you access to the Internet, you can use the Web Control or PC
softwa re Ultra Scope to send the SC P I commands or use t he user-defined
programming to c o ntrol the instrument. When update is available, you can
perform online upgra ding f or the s ystem s oftw are of the instru ment via th e
LAN interface. After it is connected to the network, you can print the
waveform displayed on the screen when you use the network printer.
Figure 1-14 Rear Panel
1-12 MSO8000 User's Guide
Tip
IGOL TERMS OF ONLINE
UPGRADE SERVICE". Tap "Accept" to start online upgrade. Tap "Cancel"
to cancel the online upgrade.
Tip
cancelled.
Chapter 1 Quick Start RIGOL
After the oscilloscope is connected to ne twork (if you do not have the access
to the Internet, please ask the administrator to open the specified network
authority), you can perform online upgrading for the system software:
1) Enable the touch screen function. Tap the function navigation icon
at the lower-left corner of the touc h screen to enable the function
navigation.
2) Tap the "Help" icon, and then the "Help" menu is displayed on the
screen.
3) Press Online upgrade or enable the touch screen to tap "Online
upgrade", then a "System Update Information" window is displayed,
requesting you whether to accept or cancel "R
3. USB DEVICE Interface
You can connect the instrument to the PC via this interface. Then you can
use the PC software Ultra Scope to send the SCPI commands, or u se the
user-defined programming to control the instrument.
4. USB HOST Interface
You can connec t th e st orage d ev ic e that is compatible with the USB to the
instrument via the USB HOST interface.
Connecting the storage device can save or recall the waveform files and
setup f iles; as well as save the data and screen image. When update is
available, you can perform local upgradin g for the s ystem s oftwar e of the
instrument via the USB HOST interface.
Perform local upgrading for the system software:
I
1) Insert the USB storage device (stored with u pgrading files under its root
n
directory) into the USB HOST interface, and then the "Help" menu is
s
automatically displayed.
e
2) Press Local upgrade or enable the touch screen to tap "Local
r
upgrade", then a dialog box "Upgrade system firmware?" is displayed.
t
3) Press OK or enable the touch screen to tap "OK" to start local upgrade
for the oscilloscope. If you tap "Cance l", the local upgrade will be
t
h
5. HDMI Video Output
Through this interface, you can connect the instrument to an external
display (e.g. monitor or projector) equipped with the HDMI interface to
better observe the wa ve fo rm displa y clearly. At this time, you can also view
the waveforms on the LCD of the instrument.
MSO8000 User's Guide 1-13
RIGOL Chapter 1 Quick Start
6. 10 M In/Out
Indicates the refe rence clo ck. It can provide ac curate sample clock signal f or
the oscilloscope, and can be used to sy nchronize the clock of tw o or multipl e
oscilloscopes.
7. EXT TRIG
Inputs the external signal via the external input terminal.
8. Trigger Out and Pass/Fai l
TRIG OUT
The oscilloscope can output a signal that can reflect the current
capture rate of the oscilloscope at each trigger via this interface.
Connect the signal to a waveform display device and measure the
frequency of the signal. The measurement result is the same as the
current capture rate.
Pass/Fail
The instrument can output a pulse from th e [TRIG OUT] connector
when a pass/failed event is detected during the pass/fail test.
9. Lock Hole
You can lock the instrument to a fixed location by using the security lock
(please purchase it by yourself) via the lock hole.
10. Fuse
If you need to replac e the fuse, use only the specified fuse. For details,
refer to descriptions in "To Replace the Fuse".
11. AC Power Cord Connector
Indicates the input terminal where AC power sour c e is connected. The
power supply requirements of the instrument are: 100 V~240 V; 45
Hz~440 Hz. Please use the power cord provided in the accessories to
connect the oscilloscope to the AC power so urce.
1-14 MSO8000 User's Guide
Chapter 1 Quick Start RIGOL
marked by dif f e rent col ors whi ch a re al so use d t o m ark b oth t he co rres po ndi n g
GI, GII: indicates the Function/Arbitrary Waveform Generator setting key.
vertical scale of the current channel . Each analog c hannel is configured with an
independent vertical scale adjustment knob. Turn it clockwise to decrease the
Front Panel Function Overview
Vertical
1, 2, 3, 4: indicates the analog channel switch key. The four channels are
waveforms of the specified channel on the screen and the c hannel input
connectors.
Press GI to enable or disable the output of the [GI] connector on the front
panel; press GII to enable or disable the outp ut of th e [GII] connector on the
front panel; and then enter the corresponding Function/Arbitrary Waveform
Generator setting interface. Enable or disable the status d isplay of the current
signal.
Note: This function is only available for the model installed with the
MSO8000-AWG option.
Default: indicates the default setting key. Press this key to restore the
instrument to its factory default settings.
Vertical
rotate the knob to modify the vertical offset of the current channel waveform.
Each analog channel is c onfigured with an independent vertical o ffset
adjustment knob. Turn it clockwise to increase the offset, and turn it
counterclockwise to decrease t he offset. During the modification, the waveform
would move up and down. Meanwhile, the offset infor mation in the
corresponding status label would change accordingly. Press down this knob to
quickly reset the vertical offset to zero .
Vertical
OFFSET: indicates the channel vertical offset knob. You can
SCALE: indicates the channel vertical scale knob. Modify the
MSO8000 User's Guide 1-15
RIGOL Chapter 1 Quick Start
scale, and turn it counter clockwise to increase the scale. During the
between "Coarse" and "Fine".
modification, the display amplitude of the wavefor m will enla rge or reduce. The
scale information in the corresponding status label will change according ly.
Press down this knob to quickly switch the vertical scale adjustment mod e
Horizontal
Zoom: indicates the delayed sweep key. Press this key to enable or disable t he
delayed sweep function.
Search: indicates the Search key. Press this key to enter the search setting
menu. The search func t ion allows you to search fo r relevant events from the
collected data based on the search condition that you set.
combination keys, you can perform recording & playing navig ation, time
navigation, and event navigation.
Horizontal
rotate the knob to modify the horizontal position (i.g. trigger position) . The
trigger point would move left or right relative to the center of the screen when
you rotate the knob. During the modification, waveforms of all the channels
would move left or right, and t he horiz ontal position message (e.g.
at the upper-right corner of the scr een would change accordingly. Press down
this knob to quickly reset the horizontal position (or the delayed sweep
position).
Horizontal
the knob to modify the horizontal time base. Turn it clockwise to decrease the
time base, and turn it counterclockwise to increase the time base. During the
modification, waveforms of all the channels will be displayed in expanded or
compresse d form, a nd the time bas e messa ge (e. g. ) at the upper section
1-16 MSO8000 User's Guide
: indicates the navigation combination key. W ith the
POSITION: indicates the horizont a l position knob. You can
SCALE: indicates the horizontal t ime base kno b. You can rotate
)
Chapter 1 Quick Start RIGOL
of the screen would change accordingly. Press down this knob to quickly switch
the horizontal time base adjustment mode between "Coarse" and "Fine".
Wave
Math: indicates the math operation key. Press this key to enable the math
operation function. The math operations include A+B, A-B, A×B, A/B, and FFT.
Besides, you can also set the math operation label.
LA: indicates the logic analyzer key. Press this key to open the logic analyzer
control menu. Y ou can enable or disable any channel or channel group, modify
the waveform sizes of the digital channel, modify the threshold of the digital
channel, and group the 16 digital channel s. Besides, y ou can also set a label f or
each digital channel.
Ref: indicates the reference waveform key. Press this key to open the reference
waveform setting menu. You can com pare the actual ly measured w avef orm with
the reference waveform to locate the circuit failure.
Decode: indicates the decode key. Pr e ss this key to open the decode setting
menu, and then you c an set the decode options. MSO8000 series supports the
parallel de coding and many proto col decodings. (For det a i l s , refer to the
descriptions in "
Wave Vertical
Rotate the knob to adjust the vertical position of the current digital channel
waveform, the vertical position of the math operation waveform, the vertical
position of the referenc e waveform, or the vertical display position of the bus
decoding.
Protocol Decoding").
POSITION: indicates the wa v e f orm vertical position knob.
MSO8000 User's Guide 1-17
RIGOL Chapter 1 Quick Start
Menu: Press this key to open the trigger operation menu.
Press this key to clear all the w av eforms on t he scre en. If th e
continue being displayed.
Press this key to enable the waveform auto setting function.
The oscilloscope will automatically adj ust the vertical scale,
Wave Vertical SCALE: indicates the waveform vertical scale knob. Rotate
the knob to adjust the vertical scale of math operation waveform or the vertical
scale of the reference waveform, and also can adjust the size of the displayed
digital channel waveforms.
Trigger
This oscilloscope provides various trigger types.
Mode: Press this key to switch the trigger mode to Auto
Normal, or Single.
Force: Press this key to generate a trigger signal forcibly.
Trigger
level. Turn it clockwise to increase the level, and turn it
counterclockwise to decrease the level. During the
modification, the trigger level line would move up and
down and the trigger level/threshold level value at the
upper-right corne r of the screen would change accordingly.
Press down the knob to quickly set the trigger level to 50%
of the waveform peak-peak value.
LEVEL: modifies the trigger level/threshold
Clear
Auto
1-18 MSO8000 User's Guide
oscilloscope is in the "RUN" state, new waveforms will
horizontal time base, an d trigger mo de according to the input
signal to realize optimal waveform display.
Chapter 1 Quick Start RIGOL
Press this key to set the operating state of the oscilloscope t o
"RUN" or "STOP ". In the "RUN" state, the key is illuminated
Press this key to set the trigger mode to "Single".
RUN/STOP
in yellow. I n the "STOP" state, the key is illuminated in red.
Single
Multifunction knob
Non-menu Operation:
In non-menu-operation mode, rotate this knob to adj ust the brightness of
waveform display. The settable screen brightness ranges from 1% to 100%.
Turn it clockwise to increase the brightness, and turn it counterclockwise to
decrease the brightness. Press down this knob to reset the brightness to 60%.
Press Display Intensity to adjust the waveform brightness. You can also
use the knob to adjust it.
Menu Operation:
When you operate on the menu, the backlight of the knob is illuminate d. For t he
menu item that has multiple parameters under it, when you press the menu
softkey , rotate the knob to select the para meter item, then press down the knob
to select it (sometimes, the specified parameter item can be selected by rotating
the knob). The kno b can also be used to mo dify para meters, input the filename,
etc.
MSO8000 User's Guide 1-19
RIGOL Chapter 1 Quick Start
Press this key to disable the touch screen function.
Function Menu
Measure: Press this key to enter the measurement setting menu. You can set the
measurement source, enable or disable the all measurement function, the statistical
analysis function, and e tc. You c an make a quick measurement for 41 waveform
parameters.
Acquire: Press this key to enter the acquisition setting menu. You can set the time
base mode, the acquisition mod e, memory depth, and etc.
Storage: Press this key to enter the file or waveform storage and load interface.
The f ile types for storage include image, waveform, and setups. Besides, waveform
load and setup load are supported. The disk management and file auto naming
function are also supported in this menu.
Cursor: Pr ess this key to enter the cursor measurement menu. The oscilloscope
provides four cur sor modes: Manual, Track, XY, and Measure. Note that XY cursor
mode is only available when the horizontal time base is set to "XY".
Display: Press this key to enter the display setting menu. You can set the display
type, persistence time, wave intensity, and etc.
Utility: Press this key to enter the system function setting menu. You can set
system-related functions or parameters, such as I/O, sound, language, and etc.
Besides, some advanced func tions (such as the pass/fail test, waveform recording,
and self-calibration) are also supported.
Touch Lock Key
Note: By default, the touch screen f unction of the oscilloscope is always enabled. If
you disable the func tion, press the key again to enable it.
1-20 MSO8000 User's Guide
Chapter 1 Quick Start RIGOL
Press this key to perform the quick operation, including screenshot,
o set the quick shortcut
keys.
Quick Key (Shortcut Key)
waveform saving, setup saving, all measurement, and statistics reset.
Press Utility More Quick settings t
MSO8000 User's Guide 1-21
RIGOL Chapter 1 Quick Start
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
User Interface
MSO8000 series has a 10.1-inch WSVGA (1024×600) LCD, with 256 level gray-scale
display. The user interface displays the a cqui red w a vef orms, the set ting inf or mation,
and the measurement results.
Figure 1-15 User Interfac e
1. Analog Channel Label/Waveform
Different channels are marked with different colors. The color of the channel
label is the same as that of the waveform.
2. Operating Status
Availabl e states include RUN, STOP, T’D (triggere d), WAIT, and AUTO.
3. Horizontal Time Base
Represents the time length per grid in the horizontal axis of the screen.
Use Horizontal
SCALE to modify this parameter. The adjustable range
of the horizontal time base is different for different mod els.
1-22 MSO8000 User's Guide
Chapter 1 Quick Start RIGOL
screen waveform
waveform in the memory
4. Sample Rate/Memory Depth
Displays the current sample rate and memory depth of t he analog channel.
The sample rate and the memory depth will change along with the
horizontal time base.
5. Auto Measurement Label
Enable the touch s creen, a nd then tap t he label. Up t o 41 wa vef orm pa rameters
are available for auto measurement. It also offers full-memory hardware
measurement function.
6. Waveform Memory
Provides a diagram of the position of the screen waveform in the memory.
7. Trigger Position
Displays the trigger position of the screen wave form and that of the wavef orm in
the memory.
8. Run/Stop Label
In the run state, the label is displayed in green; while in the stop state, it is
displayed in red. You can enable the touch screen to tap the icon "STOP/RUN" to
control its operating status.
9. Horizontal Position
Use Horizontal
POSITION to m odify this par ameter. Press down this knob
to quickly reset the horizontal position.
10. Trigger Type
Displays the currently selected trigger type and trigger condition setting. When
you select diffe rent t rigger t ypes, diff e rent labels a re displa yed . For example,
represents triggering on the r ising edge in "Edge" trigger.
11. Trigger Source
Displays the currently selected trigger source (CH1-CH4, AC Line, EXT, or
D0-D15). When you select different trigger sources, different labels are
displayed. For example,
denotes that CH1 is selected as the trigger source.
12. Trigger LEVEL/Threshold Level
When CH1-CH4 or EXT is selected as the trigger source, you need to set a
proper trigger level.
When D0-D15 is s electe d as the tr igger source, yo u need to set a prop er
threshold level.
MSO8000 User's Guide 1-23
RIGOL Chapter 1 Quick Start
The trigger level label is displayed at the left sectio n of the screen, and
the trigger level/threshold lev el value is displayed at the upper-right corner
of the screen.
When you use Trigger
LEVEL to modify the trigger level/threshold
level, the trigger level/threshold level value will change with the up and
down of
.
Note: In Slope Trigger, Runt Tr igg er, and Window trigger, you need to set the
upper and lower limits of the trigger level, and two trigger level labels (
and
) are displayed.
13. Operation Menu
Press any softkey on the front panel to activate the corresponding menu.
14. Notification Area
Displays the beeper icon, the USB storage device icon, time, and the LAN
connection icon.
Beeper icon: Pr ess Utility Beeper to turn on or off the beeper. When
the beeper is turned on, will be displayed; when off, will be
displayed.
USB storage device icon: When a USB sto rage device is detected,
will be
displayed.
Time: displays the system time. For the system time setting, refer to
descriptions in "System Ti me".
LAN connection icon: When the LAN interface is successfully connected,
will be displayed.
15. AWG 2
Displays the on/off status of AWG 2.
Displays the waveform type set for the current AWG 2.
It is only available for the model installed with the MSO8000-AWG option.
16. AWG 1
Displays the on/off status of AWG 1.
Displays the waveform type set for the current AWG 1.
It is only available for the model installed with the MSO8000-AWG option.
17. Digital Channel Sta tu s A r e a
Displays the current status of the 16 digital channels. The digital channels
currently turned on are displayed in green, and the currently selected digital
channel is highlighted in red. The digital channels turned off are displayed in
gray.
1-24 MSO8000 User's Guide
Chapter 1 Quick Start RIGOL
18. CH4 Status Label
Displays the status of CH4.
Displays the vertical scale of CH4. That is, the voltag e value per gri d of CH4
in the vertical axis.
Displays the offset of CH4, i.g. the vertical offset of CH4 waveform.
Different labels will be displayed according to the current channel setting.
For example, if you sele ct "DC" f or channel c oupling,
enable the bandwidth limit,
impedance,
is displayed.
is displayed; if you select "50 Ω" for
is displayed; if you
19. Messa ge Box
Displays the prompt messages.
20. CH3 Status Label
Displays the status of CH3.
Displays the vertical scale of CH3. That is, the volta ge value per grid of CH3
in the vertical axis.
Displays the offset of CH3, i.g. the vertical offset of CH3 waveform.
Different labels will be displayed according to the current channel setting.
For example, if you sele ct "DC" for channel coupling,
enable the bandwidth limit,
impedance,
is displayed.
is displayed; if you select "50 Ω" for
is displayed; if you
21. CH2 Status Label
Displays the status of CH2.
Displays the vertical scale of CH2. That is, the volta ge v alue per grid of CH2
in the vertical axis.
Displays the offset of CH2, i.g. the vertical offset of CH2 waveform.
Different labels will be displayed according to the current channel setting.
For example, if you sele ct "DC" f or channel coupling,
enable the bandwidth limit,
impedance,
is displayed.
is displayed; if you select "50 Ω" for
is displayed; if you
22. CH1 Status Label
Displays the status of CH1.
Displays the vertical scale of CH1. That is, the volta ge v alue per grid of CH1
in the vertical axis.
Displays the offset of CH1, i.g. the vertical offset of CH1 waveform.
Different labels will be displayed according to the current channel setting.
For example, if y ou select "DC" f or channel coupling,
enable the bandwidth limit,
impedance,
is displayed.
is displayed; if you select "50 Ω" for
is displayed; if you
23. Digital Channel Label / W a veform
The logic high and low level of the digital waveform are displayed in green. Its
edge is displayed in white. The color of the currently selected waveform of the
MSO8000 User's Guide 1-25
RIGOL Chapter 1 Quick Start
Tip
and the buttons e nabled. I n this manual , key ope rati on descriptions a re ill ust ra ted
descriptions in relevant chapters.
digital channel is consistent with that of the channel label, bein g displayed in red.
The grouping setting fun ction u nder the logi c analyz er function menu can divide
the digital channels into 4 channel groups. The c hannel label of the same
channel group is displayed in the same color; different channel groups are
marked with different colors.
24. Function Navigation
Enable the touch screen a nd then tap this icon to enable the function navigati on.
Touch Screen Controls
MSO8000 series provides a 10.1-inch super large capacitive touch screen, which
supports multi-touch and g esture operation. It has strong waveform display
capability and excellent user experience. It features great convenience, high
flexibility, and great sensitivity. The actions supported by the touch screen controls
include tapping, pinching & stretching, dragging, and rectangle drawing.
The touch screen func tion is available for all the menus displayed on the screen
in details, and as for the touch screen function about some operations, refer to
Tap
Use one finger to touch the symbol or characters on the screen slightly, as shown in
Figure 1-16. The functions of the tap action include:
Tap the menu displayed on the screen to operate on the menu.
Tap the function na vigation icon
to enable the function navigation.
Tap the displayed numeric keypad to set the parameters.
Tap the virtual keypad to set the label name and the filename.
Tap the close button at the upper-right corner of the message box to close the
prompt window.
Tap other windows on the touch screen and operate on the windows.
Figure 1-16 Tap Gesture
at the lower-left corner of the t ouch s creen
1-26 MSO8000 User's Guide
Chapter 1 Quick Start RIGOL
Pinch & Stretch
Pinch or stretch two points on the screen with two fingers to zoom in or out the
waveform. To zoom in the wavef orm, first pinch the two fingers and then stretch the
fingers; to zoom out the waveform, first stretch t he t wo fingers, and t hen pinch th e
fingers together, as shown in Figure 1-17. The functions of the pinch & stretch action
include:
Pinching & stretching in the horizo ntal direction can adjust the horizontal time
base of the waveform.
Pinching & stretchin g in t he v ertical di rection can adjus t the v ertical scale of th e
waveform.
Figure 1-17 Pinch & Stretch Gesture
Drag
Use one f inger to select the object, and then drag the object to a destination place,
as shown in Figure 1-18. The functions of the drag action includ e:
Drag the waveform to change its position or offset.
Drag the window controls to change the positions of the window (e.g. numeric
keypad).
Drag the marker to change the position of the marker.
Figure 1-18 Drag Gesture
Rectangle Drawing
Enable the function nav igation, and then tap the "Draw rect" icon to switch to the
rectangle drawing mode. Drag a finger from upper left to lower right across the
screen to draw a recta ngle on the screen, as shown in Figure 1-19 (a). Move your
finger away from the screen, and then a menu is displayed on the screen. At this
time, you can tap to select "Trigger zone A", "Trigger zone B", "Histogram",
"Horizontal zoom in", "Vertical zoom in", or "Waveform zoom in". Drag a finger from
MSO8000 User's Guide 1-27
RIGOL Chapter 1 Quick Start
Tip
veform operati on mode is enabled. By default , the w avef orm oper ation
mode is enabled.
lower right to upper left across the screen to draw a rectangle on the screen, as
shown in Figure 1-19 (b). Move your finger away from the screen, a nd t hen a menu
is displayed on the screen. At this time, you can tap to select "Trigger zone A",
"Trigger zone B", "Histogram", "Ho r izontal zoom out", "Vertical zoom out", or
"Wa veform zoom out".
(a) (b)
Figure 1-19 Rectangle Drawing Gestur e
Select "Trigger zone A":
Draw the region for Trigger zone A;
Open Trigger zone A;
Open the "Zone Tr igg er" menu.
Select "Trigger zone B":
Draw the region for Trigger zone B;
Open T rigger zone B;
Open the "Zone Tr igg er" menu.
Select "Histogram":
Draw the region for the histogram;
Open the "Histogram" menu.
Select "Horizontal zoom in": expands the waveforms in the horizontal direction.
Select "Horizontal zoom out": compresses the waveforms in the horizontal
direction.
Select "Vertical zoom in": expands the waveforms in the vertical direction. Select
"Vertical zoom out": compresses the waveforms in th e v ertical direction.
Select "Waveform zoom in": expands the waveforms both in the horizontal and
vertical di rection . Select "W avef orm zoom ou t": compresses the waveforms both
in the horizontal and vertical direction.
Tap the "Draw rect" icon to switch between the rectangle drawing and waveform
operation modes.
Tap the "Draw rect" icon, if
drawing mode is enabled. Tap the "Draw rect" icon, if
that the wa
1-28 MSO8000 User's Guide
is displayed, it indicates that the rectangle
is displayed, it indicates
Chapter 1 Quick Start RIGOL
Parameter
Parameter Setting Method
You can use the knob or enable the touch screen to set the parameters of MSO8000
series. The common parameter setting methods are as follows:
Method 1:
For the parameters with the sign
panel directly to select the parameter item or modify the parameter value .
Method 2:
For the parameters with the sign
panel and press it down to select the parameter item or modify the parameter value.
Method 3:
For the parameters with
displayed on the menu, rotate the multifunction knob
on the front panel directly to set the parameter, or press down the multifunction
knob
or the specified menu softkey, and then the numeric keypad is shown in
Figure 1-20 below.
, rotate the multifunction knob on the front
, rotate the multifunction knob on the front
Input Field
Delete key
Max. value
Min. value
Default
Clear key
Figure 1-20 Numeric Ke ypad
In the numeric keypad, rot a t e the multifunction knob to select the parameter, then
press down the knob to select it. Then input the value or the unit. You can also
enable the touch screen and tap the value or unit in the numeric keypad to input
them. After you input all t he v al ues a nd sele ct the desired units, the numeric k eypad
is turned off autom atically. This indicates that you ha ve complete d par ameter set ting.
Besides, after you have input the values, you can also press OK directly to close the
numeric keypad. At this time, the unit of the parameter is the default unit. In the
numeric keypad, you can also perform the following operations:
Delete the paramet er value that has been input.
Set the parameter to a maximum or minimum value (som etimes, the maximum
or minimum value are the specified one for the current state).
Set the parameter to a default value.
Clear the parameter input field.
MSO8000 User's Guide 1-29
RIGOL Chapter 1 Quick Start
Tip
chapters.
Security Lock Hole
Method 4:
For the parameters without the above signs, press the desired menu softkey to
switch between the parameter items. This method is applicable to the par ameters
with only two available options.
The above method is commonly used for the parameter settings of the
oscilloscope. For other methods of parameter settings, refer to details in relevant
To Use the Security Lock
If necessary , you can lock the instrument to a fixed location by using the securit y lock
(please purchase it by yourself), as shown in Figure 1-21. The method is as follows:
align the lock with the lock hole and plug it into the lock hole vertically, turn the key
clockwise to lock the oscilloscope and then pull the key out.
Figure 1-21 To Use the Security Lock
Note: Please do not insert other objects into the security lock hole to avoid
damaging the instrument.
1-30 MSO8000 User's Guide
Chapter 1 Quick Start RIGOL
Help Options Help Display Area
To Use the Built-in Help System
The help system of this oscillosc ope provi des ins truc tions f or al l the fun ction k eys on
the front panel and their correspondin g menu keys. The steps fo r opening the built-in
help sy stem are a s follows:
1. Press Utility System Help, and then the "Help" menu is displayed
on the screen. You can also use the touch screen function, tap the function
navigation icon
function navigation. Tap the "Help" icon, and then the "Help" menu is display ed
on the screen.
2. Press Content or tap the "Content" menu item, and then the help info rmation is
displayed on the screen, as shown in
consists of two sections. The left section lists "Help Options", and the right
section is the "Help Display Area".
at the lower-lef t corner of the touch s creen to en able the
Figure 1-22. The help interface mainly
After opening the help inte rface, you can get its hel p information in the "Help Display
Area" through the following three methods:
Method 1: For the keys, you can directly press the front-panel keys (except the
Power key, the Menu Off k ey , an d the Back key) to obtain the help informatio n. For
the buttons, you can rotate the knob or press down the knob to get the help
information (except the multifunction knob
knob, and Wave Vertical
different from that of pressing down the knob, these two operations will give you
different help info rmation.
Method 2: In the "H elp O pt ions", r otate the m ultif unction kno b
the help options to get the corresponding help information.
MSO8000 User's Guide 1-31
Figure 1-22 Help Information
, Wave Vertical POSITION
SCALE knob). As the function of rotating the knob is
to switch among
RIGOL Chapter 1 Quick Start
Tip
vertical position of the math operation waveform, the vertical position of
reference wave form; adjus t the display size of the wav eform of the digital
panel menu key to o btain the hel p inf ormation . W hat you can d o is only
to follow the above Method 2 or 3 to get the help information.
Method 3: Enable the touch screen and tap the desired help option to get the
corresponding help information.
Help information for other keys and buttons:
Power key: powers on/off the instrument.
Menu Off key: displays or hides menus. Pressing this key can hide the
menus.
Back key: returns to the pr evious menu or last set function menu.
Multifunction knob : In non-menu-operation mode, rotate this knob to
adjust the brightness of waveform display. When you operate on the
menu, this knob is illuminated. For the menu that has multiple
sub-menus, press the correspo nding softkey o f the sub-menu, and then
rotate this knob to selec t the specified parameter item and press down
the knob to select it (sometimes you need to rotate the knob to select the
parameter item). It can also be used to modify param eters, input a
filename, et c.
Wave Vertical
vertical position of the waveform of the current digital channel, the
the reference waveform, or the vertical display positi on of the decoding
bus.
Wave Vertical SCALE: rotating the knob can adjust the vertical
scale of the math operation waveform or the vertical scale of the
POSITION: rotating the knob can adjust the
channel.
If the menu item is grayed out, you cannot press the corresponding
front-
To View the Option Information and the Option Installation
MSO8000 series oscilloscope provides multiple options to fulfill your measurement
requirements. If you need any of these options, order them according to the Order
No. available in "Appendix A: Accessories and Options", and then install the
options according to this section. Besides, you can also view the options currently
installed on the oscilloscope or activate the newly purchased option.
1. View the installed option
The instrument is installed with the trial versions of the options before leaving
factory. When you power on the instrument for the first time, the trial time is
about 2,160 minutes. If your instrument has currently installed the option,
perform the following operations to view the name of the installed option and
other detailed information about the option fr om the option list.
1-32 MSO8000 User's Guide
Chapter 1 Quick Start RIGOL
Tip
(1) Press Utility System Help, and then the "Help" menu is displayed
on the screen. You can also use the touch screen f unction, tap the function
navigation icon
at the lower-left corn er of the touch screen to enable
the function navigation. Tap the "Help" icon, and then the "Help" menu is
displayed on the screen.
(2) Press the Op tion l ist key or tap the Option list menu item, and then a list
of the options installed is d isplayed on the screen for users to vi e w.
2. Install the option
The option license is a string of fixed characters. Each instr ument has one
unique license. The license file should be in specif ic format, with the filename
extension ".lic". After you purchase an option, you will obtain a key (used for
obtaining the license). Then, you can install the option according to the
following steps.
1) Obtain an option license
(1) Log i n to t h e RIGOL official website (www.rigol.com), click License
Activation to enter the "Registered product license code" interface.
(2) In the software license registration interface, input the correct key,
serial number (press Utility System About to obtain the serial
number of the instrument. Y ou can also open the "He lp" fun ction menu,
and then press About to obtain the serial number), and the
verification code. Click Generate to obtain the download link of the
option license file. If you need to use the option license file, please
click the link to download the file to the root directory of the USB
storage device.
2) Install the option
(1) Confirm that the option license file is located in the root d irectory of
the USB storage device, and connect the USB storage device to the
oscilloscope properly.
(2) The Option install key is activated, and press this menu key to start
installing the option.
(3) After installation, a prompt message "Option activated successfully" is
displayed.
Note: After the option has been installed, you are recommended to
restart the instrument.
Only 1 option license file of one instrument is allowed to be stored in the
same USB storage device, but the USB storage device can store the option
license file of several different instr uments. You are not allowed to modify
the licensed filename.
During the installation process, you are not allowed to power off the
instrument or pull out the USB storage device.
MSO8000 User's Guide 1-33
RIGOL Chapter 1 Quick Start
Sending the SCPI commands (:SYSTem:OPTion:INSTall <license>) to install
options is supporte d. Installing options by inputting the license cod e
manually is not supported.
1-34 MSO8000 User's Guide
Chapter 2 To Set the Vertical System RIGOL
Chapter 2 To Set the Vertical System
MSO8000 series provi des four analog in put channels (CH1-CH4), and each channel is
equipped with an independent vertical control system. The setting methods for the
vertical systems of the four channels are the same. This chapter takes CH1 as an
example to introduce the s etting method for the ve rtical system. For this oscilloscope,
only CH1 is enabled by default.
Contents in this chapter:
To Enable or Disable the Analog Channel
To Adjust the Vertical Scale
Vertical Exp ansion
To Adjust the Vertical Offset
Channel Coupling
Bandwidth Limit
Probe Ratio
Input Impe da nce
Waveform Invert
To Set the Probe
Amplitude Unit
Channel Delay
Offset Cal
Channel Label
MSO8000 User's Guide 2-1
RIGOL Chapter 2 To Set the Vertical System
To Enable or Disable the Analog Channel
Enable the analog channel:
Connec t a signal to the channel connector of CH1, and then press 1 in the vertical
control area (Vertical) on the front panel to enable CH1. Then, the backlight of the
channel is illuminated. At this point, the channel setting menu is displayed at the
right section of the screen and the channel is activated. The c hannel status label at
the bottom of the screen is sh own in t he figure below . You can also enable the touch
screen to tap the channel status label to enab le the channel.
The information displa yed in the c hannel status label is related to the current c hannel
setting but irrelevant with the on/off status of the channel. After the channel is
turned on, modify the parameters such as the vertical scale, horizontal time base,
trigger mode , an d trigge r lev el acco rding t o the input signal for easy observatio n and
measurement of the waveform.
If CH1 is enabled but not activ ated, the cha nnel status label is shown in the follo wing
figure. T o activ ate the channel, press 1 on the fr ont panel in the verti cal cont rol area
(Vertical) or enable the touch scr een to tap the waveform activation channel
displayed on the screen.
Disable the analog channel:
If the setting menu of the channel that needs to be disabled (the c urrent channel is
activated) is displayed at the rig ht section of the screen, press the channel key to
disable the channel. If the setting menu of the channel that needs to be disabled is
not displayed at the right section of the screen, first open the setting menu of the
channel to be disabled (activate the channel), then press the channel key to disable
the channel. You can also enable the touch screen to tap the channel sta tus label to
disable the channel. For example, if CH1 and CH2 are en abled, and C H 2 channel
setting menu is displayed on the screen, then if you need to disable CH1, first
activate CH1, and then press 1 or enable the touch screen to tap the CH1 c hannel
status label to disable CH1. If CH1 is disab led, the channel status label is shown in
the following figure.
2-2 MSO8000 User's Guide
Chapter 2 To Set the Vertical System RIGOL
Vertical Scale
Value Input Field Decrease Increase
To Adjust the Vertical Scale
Vertical scale indicates the voltage value per grid in the vertical axis of the screen. It
is often expressed in V/div. While you adjust the vertical scale , the displa y a mplit ude
of the waveform would enlarge or reduce. The scale information of the channel
status label (e.g. as show n in the following figure) at the lower section of the screen
would change accordingly.
The adjustable range of the vertical scale is related to the currently set probe ratio
and input impedance. By default, the probe ratio is 1X and the input impedance is 1
MΩ. In this case, the adjustable range of the vertical scale is from 1 mV/div to 10
V/div.
When CH1 is turned on, you can adjust the vertical scale with the following three
methods:
Rotate Vertical
(clockwise to reduce the sc ale and counterclockwise to increase).
Enable the touch screen function and adjust the vertical scale with the pinch &
stretch gesture on the touch screen. For details, refer to the "Pinch & Stretch"
section.
Enable the touch screen f unction , an d tap t he channe l status label at the botto m
of the screen. The following window is displayed. Tap the
right side of the Scale input field to decrease or increase the scale. You c an al so
tap the Scale input field to input a specific value with the displayed nume ric
keypad.
SCALE
that corresponds to CH1 to adjust the vertical scale
icon at the
In the vertical control area (Vertical) on the front panel, press Vertical
to adjust the vertical sc a le in "Coarse" (by default)
press 1 More Fine to enable or disable fine adjustment.
Fine adjustment: Rotate Vertical SCALE to further adjust the vertical scale
within a relatively smaller range to improve vertical resolution . If the amplitude
of the input waveform is a little bit greater than the full scale under the current
scale and the amplitude would be a little bit lower if the next scale is used, fine
adjustment can be used to improve the amplitude of wave f or m dis play to view
signal details.
Coarse adjustment (take counterclockwise as an example): Rotate Vertical
MSO8000 User's Guide 2-3
SCALE
or "Fin e" mode. You can also
RIGOL Chapter 2 To Set the Vertical System
Vertical Offset
SCALE to set the vertical scale at 1-2-5 step , i.e. 1 mV/div, 2 mV/div, 5 mV/div,
10 mV/div…10 V/div.
Vertical Expansion
When changing the ve rtic al scale of the analo g channe l by rotati ng the Vertical
SCALE
"Center" or "GND" (Ground). By default, "GND" is selected under Expand.
Press 1 More, then press Expand continuously to select "Center" or "GND".
Center: when the vertical scale is changed, the waveform will b e expanded or
GND: when the vertical scale is changed, the waveform will be expanded or
knob, you can select to e xpand or compress th e wavefor m around the
compressed around the screen center.
compressed around the signal ground level position.
To Adjust the Vertical Offset
Vertical offset indicates the offset of the signal ground level position of the w a vef orm
from the screen center in the vertical direction. Its unit is consistent with the
currently selected amplitude unit (refer to "Amplitude Unit"). When adjusting the
vertical offset, the waveforms of the corresponding channel moves up and down.
The vertical offset information (as shown in the following figure) in the channel
status label at the bottom of the screen will change accordingly.
The adjustable range of t he vertical offset is related to the cu r rent input impedance,
probe ratio, and vertical scale.
When CH1 is turned on, you can adjust the vertical offset with the following four
methods:
Rotate Vertical
offset within the ad j ustable range. Rotate this knob clockwise to increase the
vertical offset, and rotate it counterclockwise to reduce the vertical offset.
Pressing down the knob can quickly reset the vertical offset (set the vertical
offset to 0).
Menu setting: Press 1 More Offset, and then the numeric keypad is
displayed. Input the offset v alue with the numeric keypad.
Enable the touch screen, and then adjust the vertical offset with the drag
gesture. For details, refer to the "Drag" section.
Enable the touch screen function, and tap the channel stat us label at the botto m
of the screen. The following window is displayed. Tap the
2-4 MSO8000 User's Guide
OFFSET that corresponds to CH1 to adjust the vertical
icon at the
Chapter 2 To Set the Vertical System RIGOL
Value Input Field Decrease Increase
right side of the Offset input field to decrease or increase the offset. You can
also tap the Offset input field to input a specific value with the d isplayed
numeric keypa d .
Channel Coupling
The undesired signals can be filtered out by setting the coupling mode. Fo r example ,
the signal under test is a square waveform with DC offset.
When the coupling mode is "DC": the DC a nd AC comp onents of the si gnal under
test can both pass the channel.
When the coupling mode is "AC": the DC components of the signal und er test
are blo cked.
When the coupling mode is "GND", the DC and AC components of the signal
under test are both blocked.
Press 1 to open the setting menu of CH1. Then, press Coupling continuously or
rotate the multifunction knob to select the desired coupling mode (by defaul t, it
is DC). The current coupling mode is displayed in the channel status label at the
bottom of the screen, as shown in the f igure below. You can also enable the touch
screen, and then touch the CH1 setting menu to select the desired coupling mode.
DC AC GND
Note:
When the input impedance is set to "50 Ω", the channel coupling is set to DC
coupling by force, and the Coupling menu is grayed out and cannot be
modified.
When the coupling mode is "AC", the input impedance is set to 1 MΩ by force,
and the Impedance menu is grayed out and cannot be modified.
MSO8000 User's Guide 2-5
RIGOL Chapter 2 To Set the Vertical System
Bandwidth Limit
MSO8000 series supports the bandwidth limit function. Setting the band width limit
can reduce the noises in the displayed wa veforms. F or example, the signal under test
is a pulse with high fr equency oscillation.
When the bandwidth limit is disabled, the high frequency components of the
signal under test can pass the channel.
When you enable the bandwidth limit and limit it to 2 0 MHz or 250 MHz, the high
frequency components found in the signal under test that are gr eater than 20
MHz or 250 MHz are attenuated.
Press 1 to open the setting menu of CH1. Then, press BW Limit continuously or
rotate the multifunction knob to select the desired bandwidth limit. Press down
the knob to select it. By default, it is OFF. When the bandwidth limit is enabled, the
character "B" will be displayed in the channel s tatus label at the bot tom of the screen,
as shown in the figure below. You can also enable the touch screen, and then tap the
CH1 setting menu to select the desired bandwidth limit.
The bandwidth limit that you select is based on the input impedance of you r
oscilloscope model, as shown in Table 2-1.
Table 2-1 Bandwidth Limit
Input Impedance of the Oscilloscope Available Bandwidth Limit
50 Ω 20 M
1 MΩ 20 M, 250 M
Note: Bandwidth limit can not only reduce the noise, but also can attenuate or
eliminate the high frequency components of the signal.
Probe Ratio
MSO8000 series allows you to set the probe attenuation manually. To ob tain the
correct measu re ment results, you must set the probe ratio properly. By default, the
probe ratio is 1X.
Press 1 to open the setting menu of CH1.Then, press Attenuation continuously or
rotate the multifunction knob to select the desired probe ratio. You can also
enable the touch screen, and then touch the CH1 setting menu to select the desired
probe ratio. The probe ratio values available are as shown in Table 2-2.
2-6 MSO8000 User's Guide
Chapter 2 To Set the Vertical System RIGOL
Attenuation Ratio
(display amplitude of the signal: actual amplitude
of the signal)
0.01X
50000X
0.01:1
50000:1
Table 2-2 Probe Ratio
Menu
0.02X
0.05X
0.1X
0.2X
0.5X
1X (default)
2X
5X
10X
20X
50X
100X
200X
500X
1000X
2000X
5000X
10000X
20000X
Note: After the oscilloscope auto-recognized certain probes with a fixed attenuation
ratio, the prob e ratio will also be auto recognized. You do not have to set it
manually.
0.02:1
0.05:1
0.1:1
0.2:1
0.5:1
1:1
2:1
5:1
10:1
20:1
50:1
100:1
200:1
500:1
1000:1
2000:1
5000:1
10000:1
20000:1
Input Impedance
To reduce the circuit load between the oscilloscope and the circuit under test, this
oscilloscope provides two input impedance modes: 1 MΩ (default) and 50 Ω.
1 MΩ: The input impedance of the oscilloscope is very high, and the current
flowed from the circuit under test can be ignored.
50 Ω: makes the oscilloscope match with the device whose input impedance is
50 Ω.
Press 1 to open the setting menu of CH1. Then, press Impedance continuously to
select the input impedance of the oscilloscope. If you select "50 Ω", the channel
status label at the bottom of the screen will display the icon
Note:
After the oscilloscope recognizes the probe automatically, the input impedance
MSO8000 User's Guide 2-7
.
RIGOL Chapter 2 To Set the Vertical System
(b) "Inv ert" On
will also be auto recognized. You do not have to set it manually.
The setting of the input impedance will affect the ranges of channel vertical
scale and offset.
Waveform Invert
Press 1 to open the setting menu of CH1. Then, press Invert continuously to enable
or disable the waveform in v ert. When enabled, the channel label is displayed, as
shown in the following figure.
When disabled, the waveform is displayed normally; when enabled, the voltage
values of the display ed wa veform a re inverted (as shown in Figure 2-1) . Enabling the
waveform invert will also change the result of math function and waveform
measurement.
(a) "Invert" Off
Figure 2-1 Waveform Invert
Note: When the waveform invert is enabled, the trigger edge or the trigger polarity
will change (e.g. Edge trigger, Pulse trigger, or Slope trigger).
To Set the Probe
The analog channel of this oscilloscope not only sup ports the common passive probe,
but also the active probe. It can automatically recognize the currently connected
probe type and its probe ratio. For detailed technical information of the probes,
please refer to the corresponding Probe User’s Guide.
Press 1 to open the setting menu of CH1. Then, press Probe to open the probe
menu. If different prob es are connected to the oscilloscope, different information
about the probe will be displayed, and you can perform the different operations on
the menu.
2-8 MSO8000 User's Guide
Chapter 2 To Set the Vertical System RIGOL
Tip
the probe ratio.
Tip
ratios, please refer to "Probe Ratio" to set the probe ratio.
Passive Probe
If a passive probe is connected, for exam ple, whe n RIGOL's RP3500A pr obe model
is connected to the oscilloscope, press Probe to open the probe menu. Its
sub-menus are grayed out and disable d .
For some of the ordinary passive probes, the oscillo scope can recog nize their
probe ratio automatically. If not recognized, please refer to "Probe Ratio
" to set
Active Probe
If an active pro be is conne cted, f or example, when RIGOL's RP7150 probe mo del is
connected to the oscilloscope, press Probe to open the probe menu, and you can
operate on the menu item.
When a 50 Ω active probe is connected, the input impedance (refer to "Input
Impedance") of the channel will be automatically set to "50 Ω".
For the active probe, the oscilloscope can rec o gnize the probe ratio
automatically. If the currently connected probe supports a variety of probe
Probe Delay
To avoid measurement result errors arising from the transmission delay of the
probe cable, the oscilloscope provides the probe delay adjustment function for
the ac tive probe. Press Skew, and then rotate the multifunction knob or
use the numeric keypad to set the probe delay time.
Bias Voltage
The oscilloscope provides the bias v oltage ad justment f unction f or active prob es.
This function is used to adjust the signal und er test that exceeds the input
dynamic range of the probe amplifier to an appropriate range to ensure the
integrity of the signal under test. Press Bias, rotate the multifunction knob
or use the numeric keypad to set the DC b ias voltage.
Probe Information
Press About to view information about the probe cur rently conne cted, such as
the manufacturer, model, serial number, and the last calibration date.
Probe Calibration
Press Calibration to start zero calibration automatically for the probe.
MSO8000 User's Guide 2-9
RIGOL Chapter 2 To Set the Vertical System
Amplitude Unit
Select the amplitude displ ay unit f or the cur rent channel. The av ailable units a re W, A,
V, and U. When the unit is changed, the unit related to the r elevant functions of the
channel will change accordingly.
Press 1 More Unit, press Unit continuously or rotate the multifunction knob
to s elect a unit. You can also enable the touch screen to select the desired unit
with touch gestures. The d efault unit for the value is V.
Channel Delay
When using an oscilloscope for actual measurement, the transmission delay of the
probe cable ma y bri n g re la ti ve ly g reat er e r rors (z e ro o ff s et) . M SO80 00 allows you t o
set a delay time for calibrating the zero offset of the corresponding channel. Zero
offset is defined as the offset of the crossing point o f the w a vef orm and trigger lev e l
line relative to the trigger position, as shown in Figure 2-2.
Figure 2-2 Zero Offset
Press 1 More Ch-Ch Skew, rotate the multifunction knob or use the
numeric keypa d to set the desired delay calibration time. The available range of the
delay calibration time is from -100 ns to 100 ns.
Note: This parameter is related to the instrument model and the current horizontal
time base setting. The la rger the horizontal time base is, the larger the set ting
step will be.
2-10 MSO8000 User's Guide
Chapter 2 To Set the Vertical System RIGOL
Offset Cal
When you use an o scilloscope to make actual measurements, a small offset that
arises from the temperature drift of the component or external environment
disturbance may occur on the zero-cross voltage of the channel, whi ch will af fe ct the
measurement results of the vertical parameters. MSO8000 allows you to set an offset
calibration voltage for calibrating the zero point of the corresponding channel, so as
to improv e t he accuracy of the measurement results.
Note: If the z er o-cross voltage of the channel has a larger amplitude offset that
exceeds the adjustable null range, please perform self-c alibration for the
instrument to ensure the measurement accuracy. For details, refer to
descriptions in "Self-calibration
Press 1 More Offset Cal, rotate the multifunction knob or use the
numeric keypa d to set the offset calibration value.
".
Channel Label
The instrument uses the channel number to mark the corresponding channel by
default. For ease of use, you can also set a label for each channel. For example,
".
"
Press 1 More Label to enter the label setting menu. You can use the built-in
label or manually input a label. Three input methods are available for you to input a
label name, including Chinese, English, and Traditional Chinese.
The label setting menu includes the following menu items.
Press Display to tur n on or off the display of the c hannel label. If it is enabled,
the label will be dis pla y e d at the left side of the wav eform. When on, CH 1 i s, by
default, displayed to b e the channel label.
Press Library to select the preset labels such as CH1, ACK, ADDR, BIT, CLK, CS,
DATA, IN, MISO, MOSI, OUT, RX and TX.
Press Label and the label editing interface is automatically displa yed as shown in
Figure 2-3. Y ou can input the label manually. For the label input method, refer t o
"To Create a Folder".
MSO8000 User's Guide 2-11
RIGOL Chapter 2 To Set the Vertical System
Label Input Area Input Selection Area Virtual Keypad Delete Key
Upper-lower
Case Switch
Figure 2-3 Label Editing Interface
For example, set the label to "
knob
to select "Caps" and press down the knob to switch the uppercase or
". In the virtual keyp ad, rotate the multifunction
lowercase mode. Rotat e the multifunction knob and select "C", press down the knob.
Then, in the input selection area , r otate the multifun ction kno b and select "C" . Press
down the knob to i nput "C ". Use the same method to input "hn1". After finishing the
input, press OK to finish the editing. You can also enable the touch s creen to oper ate
by touch gestures. If Display is enabled, the label will be displayed at the left
of CH1 wav e form.
T o delete or modi fy t he input cha racters, rotate the mul tifunction knob
or enable
the touch screen to realize it.
Rotate the multifunc tion knob
: use the delete key to delete or modify the
characters. To modify the characters, input the desired characters again.
Enable the touch screen: use the touch gestures to directly move the cursor to
the right s ide of the character required to be deleted or modified, and then tap
the delete key to delete the character. To modify the characters, input the
desired character again or delete the character.
2-12 MSO8000 User's Guide
Chapter 3 To Set the Horizontal System RIGOL
Chapter 3 To Set the Horizontal System
Contents in this chapter:
To Adjust the Horizontal Time Base
To Adjust the Horizontal Position
Delayed Sweep
MSO8000 User's Guide 3-1
RIGOL Chapter 3 To Set the Horizontal System
Decrease the timebase Increase the timebase
To Adjust the Horizontal Time Base
Horizontal time base, also called the horizontal scale, refers to the time of each grid
in the horizontal direction of the screen. It is usually expressed in s/div. The
adjustable range of the horizontal time base is related to the model type.
While you change the hor izontal time base, the displayed waveforms of all channels
are expanded or compr essed horizontally relative to the current selected horizontal
reference baseline (refer to "Horizontal Expansion"). The horizontal time base at
the upper-left corner of the screen will be changed accordingly, as shown in the
figure below.
You can adjust the horizontal time base with the following three methods:
Rotate Horizontal
available range (clockwise to red uce the horizontal time base and
counterclockwise to increase).
Enable the touch screen function and adjust the horizontal time base with the
pinch & stretch gesture on the touch screen. For details, refer to the "Pinch &
Stretch" section.
Enable the touch screen function, and tap the horizontal time base label
at the top of the screen. The following window is displayed. Tap the
icon at the right side of the Scale input field to decrease or increase the
horizontal time base. You can also tap the Scale input field to input a specific
value with the displayed numeric keypad.
SCALE
to adjust the horizontal time base within the
In the Horizontal control area (Horizontal), rotate the Horizontal
to switch the adjustment mode between "C oarse" and "Fine" (by default, it is Coarse ).
You can also press 1 More Fine to enable or disable the fine adjustment of the
horizontal time base.
Coarse adjustment: Rotate the Horizontal SCALE knob will adjust the
horizontal time base of the waveforms of all channels at 1-2-5 step within the
adjustable range. Rotate it clockwise to reduce the horizontal time base, and
counterclockwise to increase the horizontal time base.
Fine adjustment: Rotate the Horizontal SCALE knob will adjust the
horizontal time base of the waveforms of all channels with a minor step value
3-2 MSO8000 User's Guide
SCALE knob
Chapter 3 To Set the Horizontal System RIGOL
Decrease the position Increase the position
within the adjustable rang e. Rotate it clockwise to reduce the horizontal time
base, and counterclockwise to increase the horizontal time base.
Note: When the delayed sweep is enabled, rotate the Horizontal
to adjust the time base for the delayed sweep. The delayed sweep time base
displayed in the center of the screen will be change d a ccordingly, as shown in
the following figure.
SCALE knob
To Adjust the Horizontal Position
Horizontal position, also called tri gger position, refers to the t ri gge r point position of
the waveforms of all channels i n the horizo ntal direction relative to the screen center.
When the waveform trigger point is at the left (right) side of the screen c enter, the
horizontal position is a positive (negative) v alue.
While you change the hor izontal position, the waveform trigger points and the
displayed wavef orms of all channe ls are move d left and right. The horizontal p osition
at the right-upper corner of the screen changes accordingly, as shown in the figure
below.
You can adjust the horizontal position with the following three methods:
Rotate Horizontal
waveforms of all channels. When you rotate it clockwise, the waveform t rigger
point moves right on the screen; when you rotate it counterclockwise, the
waveform trigger point moves left on the screen. Pressing down the knob can
quickly reset the horizontal position (reset to 0).
Enable the touch screen function and adjust the horizontal position with the
drag gesture on the touch screen. For details, refer to the "Drag" section.
Enable the touch screen function, and tap the horizontal position label at
the top of the screen. The followin g window is display ed. Tap the
at the right side of the Pos input f ield to decrease or increase the horizontal
position. You can also tap the Pos input field to input a specific value with the
displayed numeric keyp ad.
POSITION to adjust the horizontal position of the
icon
MSO8000 User's Guide 3-3
RIGOL Chapter 3 To Set the Horizontal System
Wavef orm Before Enlargement
Horizontal Position of the
Waveform After Enlargement
Note: When the delayed sweep is enabled, rotate the Horizontal POSITION
knob to adjust the horizo nt al position of t he dela y ed swee p (press down the k n ob to
quickly reset it). The horizontal position of the delayed sweep at the upper-right
corner of the screen changes accordingly.
Delayed Sweep
Delayed sweep can be used to enlarge a length of waveform horizontally to view
waveform details.
In the horizontal control area on the front panel, press Zoom to enable or disable
the delayed sweep. By default, it is disabled. You can also press Acquire More
Zoom to enable or disable the delayed sweep function.
Note: To enable the delayed sweep, you must ensure that the current time base
mode is "YT".
In delayed sweep m ode, the screen is divided into two display areas as shown in
Figure 3-1.
Main
Time
Base
Time
Base of
the
Delayed
Sweep
Delayed Sweep
3-4 MSO8000 User's Guide
Figure 3-1 Delayed Sweep Mode
Chapter 3 To Set the Horizontal System RIGOL
Waveform befor e enlargement:
The waveform in the area that is not covered by subtransparent b lue in the upper
part of the screen is the w aveform before enla rgement. Its horizontal t ime base (als o
called main time base) is displayed at the upper-left corner of the screen. Yo u can
rotate the Horizontal
the Horizontal
POSITION knob to move t he area left and right or rotate
SCALE knob to enlarge or reduce this area.
Note: If you ne ed to mo dify the horizontal t ime base (also called main time base) o f
the normal sweep, please disable the delayed sweep f unction first. Rotate the
Horizontal
SCALE knob to set the required main time base, and then
enable the delayed sweep function.
Waveform after enlargement:
The waveform in the lower part of the screen is the ho r izontally expanded delayed
sweep waveform. Its horizontal time base (also called the time b ase of the delayed
sweep) is displayed on the screen. Compared with the main time base, the time
based of the delayed sweep has increased the wavefo r m resolution, as shown in
Figure 3-1. At this time, you can rotate the Horizontal SCALE knob to ad ju s t
the time base of the delayed sweep, and rotate the Horizontal
POSITION
knob to adjust the horizontal position of the delayed sweep.
Note: The time base of the delayed sweep should be smaller than or equal to the
main time base.
MSO8000 User's Guide 3-5
Chapter 4 To Set the Sample System RIGOL
Chapter 4 To Set the Sample System
Contents in this chapter:
Timebase Mode
Acquisition Mode
Sampling Mode
Sample Rate
LA Sample Rate
Memory Depth
LA Memory De pth
Anti-Aliasing
Horizontal Expansion
MSO8000 User's Guide 4-1
RIGOL Chapter 4 To Set the Sample System
II I
III IV
A
B
C
D
Signal must be
centered horizontally
Timebase Mode
MSO8000 series supports three available time base modes: YT mode, XY m ode, an d
ROLL mode. By default, the time base mode is YT.
Press Acquire Timebase Mode on the front panel, and then rotate the
multifunction knob to select the desired time base mode. Then, press down the
knob to select the mode. You can also press Timebase Mode continuously to select
the mode or enable the touch screen to tap the desired mode and select it.
YT Mode
In this mode, the Y axis represents voltage, and the X axis represents time.
Note: Only when this mode is enabled, can delayed sweep be turned on. In this
mode, when the horizontal time base is equal to or greater than 200 ms/div,
the instrument enters slow sweep mode. For details, refer to descriptions in
"ROLL Mode".
XY Mode
In this mode, both the X axis and the Y axis represent the voltage. The mode
changes the display from voltage-time display mode to voltage-voltage display. You
can use the Lissajous method to measure the phase deviation of the two input
signals whose frequencies are the same. The following figure shows the
measurement schematic diagram of phase deviation.
Figure 4-1 Measurement Schematic D iagram of Phase Deviation
4-2 MSO8000 User's Guide
Chapter 4 To Set the Sample System RIGOL
According to sinθ=A/B or C/D, θ is the phase deviation angle b etween the two
channels. The definitions of A, B, C, and D are shown in the a bove figure. The phase
deviation angle is obtained, that is:
θ=±arcsin(A/B) or ±arcsin(C/D)
If the principal axis of the ellipse is within Quadrant I and III, the phase deviation
angle obtained should be within Quadrant I and IV, namely within (0 to π/2) or (3π/2
to 2π). If the principal axis of the ellipse is within Quadrant II and IV, the phase
deviation angle obtained should be within Quadrant II and III, namely within (π/2 to
π) or (π to 3π/2).
The XY function can be used to measure the phase deviation oc c urred when the
signal under test passes through a circuit network. Connect the oscilloscope to the
circuit to monitor the input and output signals of the circuit.
Application example: measures the phase deviation between the input signals of
two channels.
Use Lissajous method
1. Connect one sine signal to CH1, and then connect another sine signal (with the
same frequency and amp litude as the previous one but a 90° phase deviation
from the previous one) to CH2.
2. Press AUTO, after you select "XY" mode, rotate the Horizontal
SCALE to
adjust the sample rate properly to obtain a better view of Lissajous graph for
observation and measurement.
3. Rotate the Vertical SCALE knob that corresponds to CH1 and CH2
respectively to make the signals easy to observe. Then, a circle, as shown in the
figure below, should be displayed.
4. Observe the measurement result shown in the figure above. According to the
measurement schematic diagram of the phase deviation (as shown in Figure
), A/B(C/D)=1. Thus, the phase deviation angle of the two channel input
4-1
signals is
MSO8000 User's Guide 4-3
θ=±arcsin1=90°.
RIGOL Chapter 4 To Set the Sample System
Slow Sweep
It is similar to the ROLL mode. In YT mode , when the ho rizontal time base is set to
200 ms/div or smaller, the instrument enters the "slow sweep" mode in which the
Coupling" to "DC".
Note:
The maximum sample rate in XY mode is 2.5 GSa/s. In this mode, CH1 and CH2
are forc ed to be enabled; CH3 and CH4 are forced to be disabled. Generally, a
longer sample wavef orm can e nsure bet ter display ef fect of Lissaj ous figure. But
due to the limitation of the memory depth, you have to reduc e the waveform
sample rate to ac quire a lo nger wav eform (refe r to the int roduction in "Memory
Depth"). Therefore, during the measurement, reducing the sample rate
properly can achieve better display effect of Lissajous figure.
The following functions are disable d i n XY mode:
"Delayed Sweep", "To Select the Display Type", "Scale", "Protocol
Decoding", "Pass/Fail Test", "Waveform Recording & Playing", and
"Digital Channel".
ROLL Mode
In this mode, the waveform scrolls from right to left to update the display. The
available rang e of the horizontal scale is from 200 ms to 1 ks. Press More Auto
ROLL to select "ON". The system automatically enters the ROLL mode , a nd slow
sweep mode is disabled.
Note:
If the current delayed sweep is enabled, the n whe n you ena ble the ROLL mod e,
the delayed sweep is disabled a utomatically. When you re -enable the "YT" mode,
the delayed sweep will be re-enabled.
The following functions cannot be set in ROLL mode:
"To Adjust the Horizontal Position" (available when the osc illoscope is in
"Stop" operating status), "Delayed Sweep", "To Trigger the Oscilloscope",
"Protocol Decoding", "Pass/Fail Test", "Waveform Recording &
Playing", and "To Set the Persistence Time".
instrument first acquires the data at the left of the trigger point and the n wa its for
a trigger event. After the trigger occurs, the instrument continues to finish the
waveform at the right of the trigger point. When observing the low-frequency
signal in the slow sweep mode, it is recommended that you set "
4-4 MSO8000 User's Guide
Channel
Chapter 4 To Set the Sample System RIGOL
Acquisition Mode
The acquisition mode is used to control how to generate waveform points from the
sample points.
MSO8000 supports the foll owing four acquisition modes : Normal, A verage , Peak, and
High Resolution. By default, the acquisition mode is Normal.
Press Acquire Acquisition on the f ront pa nel, a nd then rotate the multif u nction
knob to select the desired acquisition mode. Then, press down the knob to
select the mode. You can also press Acquisition continuously to select the mode o r
enable the touch screen to tap the desired mode and select it.
Normal
In this mode, the oscillosc ope sam ples the signal at a specified fixed time interval to
rebuild the wavefor m. For most of the waveforms, using this mod e can produce the
optimal display effects.
Average
In this mode, the oscillo scope averages the waveforms from multiple samples to
reduce the random noise of the input sig nal and improve the vertical resolution.
Greater number of ave ra ges can l ower the noise an d increase the v ertical res olution;
while at the same time, it will slow the response of the displayed waveform to the
waveform changes.
When you select "Average" mode, press Averages and rotate the multifunction
knob
also use the pop-up num eric keypad to input the average count. When the ave rage
count value is in N power-of-2 increments, a prom pt message "Trim average count"
is displayed. At this time, a value that is smaller than the one you input and the
closest to N power-of-2 increments will be input auto matically. For example, if you
input 9 with the numeric keypad, the average count will be input 8 automatically.
The number of averages can be set to 2, 4 , 8, 16, 32 , 64, 128 , 256, 512 , 1024, 2048,
4096, 8192, 16384, 32768, or 65536. By default, it is 2.
or use the numeric keypad to set the desired number of averages. You can
MSO8000 User's Guide 4-5
RIGOL Chapter 4 To Set the Sample System
Figure 4-2 Waveforms before Averaging
Figure 4-3 Waveforms after 128 Times of Averaging
Peak
In this mode, the oscilloscope acquires the maximum and minimum values of the
signal within the sample in terval to get the envel ope of the signal or the narrow pulse
that might be lost. In this mode, signal aliasing can be prevented, but the noise
displayed would be larger.
In this mode, the oscillo scope can display all the pulses whose pulse widths are at
least the same as the sample period.
High Resolution
This mode uses an over-sample technique to average the neighboring points of the
sample waveform. This reduces the random noise on the input signal, generates a
4-6 MSO8000 User's Guide
Chapter 4 To Set the Sample System RIGOL
Tip
in its last captured graph. You can still expand or zoom the waveforms
by using the horizontal and vertical control knobs.
Tip
4-channel mode: CH1/CH2 are both enabled or CH3/CH4 are both enab led.
much smoother wavef orm on the s creen an d improv es the v ertical resolution. This is
generally used when the sample rate of the digital converter is greater than the
storage rate of the acquisition memory.
Note:
The "Average" and "High Res" modes use different averaging methods. The
former uses "Multi-sample Average" and the latter uses "Single-sample
Average".
In "Hig h Res" mode, the oscilloscope improves the measurement acc uracy at
the cost of bandwidth. Each time the sampling rate changes, a window
displaying the current bandwidth appears at the lower-left c orne r o f the screen.
In "Hig h Res" mode, the highest waveform refresh rate mode is not supported.
Sampling Mode
This oscilloscope only suppor ts the real-time sampling mode. In this mode, the
oscilloscope produce the wav eform display from sa mples collecte d during one trigger
event. The highest real-time sample rate on the ana log channel o f MSO8000 series is
10 GSa/s. The current samp le rate is displayed under CH SampleRate.
Press RUN/STOP on the front panel to stop sampling, and then the oscilloscope
will mainta
Sample Rate
Sampling is the process of converting the analog signal into the digital signal at a
specif ied time interval and then restoring them in sequence. The sample rate is the
reciprocal of the time interval.
The sample rate o f the analog channel is related to the current channel mode. The
maximum real-time sample rate in t he single-channel mode of the oscilloscope is 10
GSa/s. The maximum real-time sample rate in the dual-channel mode is 5 GSa/s, and
the maximum real-time sample rate in the 4-channel mode is 2.5 GSa/s.
Single-channel mode: only one of the four c hannels (CH1/CH2/CH3/CH4) is
enabled.
Dual-channel mode: either CH1 or CH2 is enabled; and either CH3 or CH4 is
enabled.
MSO8000 User's Guide 4-7
RIGOL Chapter 4 To Set the Sample System
Note: The sample rate is displayed both in the status bar at the upper part of the
screen and in the CH SampleRate menu. To indirectly modify the samp le
rate, rotate the Horizontal
SCALE knob to adjust the horizontal time
base or modify the memory depth. In addition, if the triggering sour ce selects
the analog channel, it will cause the channel mode to change, affecting the
sampling rate.
The impact of low sample rate on the wavefor m :
1. Waveform Distortion: when the sample rate is too low, some waveform
details are lost, and the sample waveform displayed is rather different from the
actual waveform of the signal.
2. Waveform Aliasing: when the sample rate is twice lower than the actual
signal frequency (Nyquist Frequency), the frequency of the waveform rebuilt from
the sample data is smaller than the actual signal frequency.
3. Waveform Leakage: when the sample rate is too low, the waveform rebuilt
from the sample data does not reflect all the actual signal inform ation.
4-8 MSO8000 User's Guide
Chapter 4 To Set the Sample System RIGOL
Pulse
disappeared
LA Sample Rate
LA sampling is the proc ess of sampling on the compared digital signals at a certain
time interval. LA sample rate is the reciprocal of the ti me interval. F or example, if the
LA sample rate is 500 MSa/s, it indicates that the oscilloscope will make data
acquisition on the digital signals at an interv al o f 2 ns . The maximum LA sample rate
of the oscilloscope is 1.25 GSa/s, and its displa y valu e is related to the sample rate of
the current analog channel.
Note:
1. The digital signals here mentioned refers to the signal obtained from the
comparison between the input signal and the user-defined threshold level. The
rule of the comparison is that when the amplitude of the input signal is greater
than the threshold level, it is judged to be the logic high level; when the
amplitude of the input signal is smaller than the threshold level, it is judged to
be the logic low level.
2. LA sample rate is displayed under the LA SampleRate menu. To indirectly
modify the LA sample rate, rotate the Horizontal
the horizontal time base or modify the memory depth.
SCALE knob to adju s t
Memory Depth
Memory depth refers to the numbe r of points of the oscilloscope that can store in one
trigger acquisition. It reflects the storage capability of the acquisition storage. This
oscilloscope is equipped with a standard memory depth of up to 500 Mpts.
MSO8000 User's Guide 4-9
RIGOL Chapter 4 To Set the Sample System
T
Trigger Point
Pre-sample Delayed Sample
Memory Depth
MDepth SRate TScale HDivs=××
MDepth
SRate
TScale
HDivs
Figure 4-4 Memory Depth
The following equation shows the relations among memory depth, sample rate, and
horizontal time base scale:
——indicates the memory d ep th. The unit is pts.
——indicates the sample rate. The unit is Sa/s.
——indicates the horizontal tim e base scale. The unit is s/d iv.
——indicates the number of grids in the horizontal direction. The unit is div.
Therefore, under the same horizontal time base scale, a higher memory depth can
ensure a higher sample rate.
Press Acquire Mem Depth, then rotate the mul tif unction knob to switch to
the desired memory depth, and then press down the knob to select the option. You
can also press the Mem Depth key continuously or enable the touch sc r een to
select the memory depth. By default, the memory depth is Auto.
― In single-channel mode, the memory depths available include Auto, 1 Kpts, 10
Kpts, 100 Kpts, 1 Mpts, 10 Mpts, 25 Mpts, 50 Mpts, 100 Mpts, 125 Mpts, 250
Mpts, and 500 Mpts.
― In dual-channel mode, the memory depths available include Auto, 1 Kpts, 10
Kpts, 100 Kpt s, 1 Mpts, 10 Mpt s, 25 Mpts , 50 Mpts, 100 M pts, 125 Mpt s, and 250
Mpts.
― In 4-channel mode, the memory depths av ailable in clude Auto , 1 Kpts, 10 Kpts,
100 Kpts, 1 Mpts, 10 Mpts, 25 Mpts, 50 Mpts, 100 Mpts, and 125 Mpts.
Note: In "Auto" mode, the oscilloscope selects the memory depth automatically
according to the current sample rate.
4-10 MSO8000 User's Guide
Chapter 4 To Set the Sample System RIGOL
LA Memory Depth
Press Acquire More to view the memory depth of the current digital channel
under LA Mem Depth. The LA memory depth will cha nge with the memory depth of
the analog channel, and cannot be set separ ately. The maximum LA memory depth is
62.5 Mpts.
Anti-Aliasing
At a slower sweep speed, the sample rate is reduced, and a dedicated display
algorithm can be used to minimize the possib ility of aliasing.
Press Acquire Anti-aliasing to enable or disable the anti-aliasing functio n. By
default, anti-aliasing is disabled. In this case, it is more likely to generate waveform
aliasing.
Note: This function should be enabled when the horizontal time base has a large
deviation from the period of the signal under test (e.g. when the horizontal
time base is greater than five-fold the period of the signal under test).
Horizontal Expansion
Horizontal expansion indicates the reference position that the screen waveform is
referenced to when it is horizontally expanded or compressed in adjusting the
Horizontal SCALE knob. In YT m ode , p res s Acquire More Expand and
then rotate the multifun ction knob to select the desired reference position. Press
down the knob to select it. You can also press Expand continuously to select it o r
enable the touch screen to tap the desired reference. The horizontal expansion
reference supported b y the oscilloscope inclu des Cent er, Left, Right, Trigger, and User.
The default is "Center".
Center: when the horizontal time base is modified, the waveform will be
expanded or compressed horizontally relative to the screen cente r.
Left: when the horizontal t ime base is modified, the waveform will be expanded
or compressed horizontally relative to the leftmost position o f the screen.
Right: when the horizontal time base is modified, the waveform will be
expanded or compressed horizontally relative to the rightmost position of the
screen.
Trigger: when the horizontal time base is modified, the waveform will be
expanded or compressed horizontally relative to the trigge r point.
User: when the horizontal t ime base is m odified, the waveform dis played will be
expanded or compressed horizontally relative to the user-defined reference
position.
MSO8000 User's Guide 4-11
RIGOL Chapter 4 To Set the Sample System
After you select "User", press Expand User and then rotate the multifunction
knob
to set the expansion reference. Its availa ble range is from the
rightmost position of the s creen to the le ftmost p osition of the s creen. By defaul t,
it is the screen center. Pressing down the multifunction knob
can quickly
reset the user-defined reference position to 0.
Note: This function is unav ailable in YT mode with the delaye d sweep bein g enable d,
XY mode, and ROLL mode.
4-12 MSO8000 User's Guide
Chapter 5 To Trigger the Oscilloscope RIGOL
Chapter 5 To Trigger the Oscilloscope
As for trigger, you set certain trigger condition according to the requirement and
when a wavefo rm in the waveform stream meets this condition, the o scilloscope
captures this waveform as well as the neighboring part, and displays them on the
screen. For the d igital oscilloscope, it samples waveform co ntinuously no matter
whether it is stably triggered, but only stable trigger can be stably d isplayed. The
trigger module ensures that every time base sweep or acquisition starts from the
user-defined trigger condition, namely every sweep is synchronous with the
acquisition and the waveforms acquired is overlapped so as to display the stable
waveforms.
Trigger settings should be based on the features of the input signal. To quickly
capture the desired waveform, you need to understand the signal under test. This
oscilloscope provides abund ant trigger types that help you focus on the desired
waveform details.
Contents in this chapter:
Trigger Source
Trigger LEVEL/Threshold Level
Trigger Mode
Trigger Coupling
Trigger Holdoff
Noise Rejection
Trigger Type
Zone Trigger
Trigger Output Connector
MSO8000 User's Guide 5-1
RIGOL Chapter 5 To Trigger the Oscilloscope
Trigger Source
In the trigger control area (Trigger) on the front panel, press Menu Source to
select the desired source, or rotate the multi-function knob to select a desired
source, then press down the knob to select it. You can also press Source
continuously to select the tr ig g er source or enable the touch screen to tap the
desired trigger source and select it.
Analog channels (CH1-CH4), digital chan nels (D0-D15), E XT (external trigger) , or AC
Line can all be selected as the trigger source.
Analog channel input:
Signals input from analog channels CH1-CH4 can all be used as trigger sources. No
matter whether the channel selected is enabled, the channel can work normally.
Digital ch an n e l in p ut:
Signals input from digital channels D0-D15 can all be used as trigger sources. No
matter whether the channel selected is enabled, the channel can work normally.
External trigger input:
The external trigger source can be used to trigger on the fifth channel while all the
other four channels are acquiring data. The trigger signal (e.g. external clock or
signal of the circuit under test) will be connected to EXT trigger source via the
external trigger input terminal [EXT TRIG] connector. You can set the trigger
conditions within the range of the trigger level (from 8 V to +8 V).
AC line input:
The trigger signal is obtained from the AC powe r inp ut of t he oscilloscope . AC trigger
is usually used to measure signals relev ant t o the A C power fre quency. For example,
stably triggering the waveform output from the transformer of a transformer
substation. It is mainly used in related measurements of the power industry.
5-2 MSO8000 User's Guide
Chapter 5 To Trigger the Oscilloscope RIGOL
Trigger LEVEL/Threshold Level
The adjustment of the tri gger level/thresh old level is relat ed to the ty pe of the trigge r
source.
When the trigger source is selected from CH1 to CH4, rotate the Trigger
LEVEL
line (the color of the trigger level line should be consistent with that of the
channel color) and a trigger label "
move up and down with the variation of the trigger level. When you stopping
modifying the trigger level, the trigger level line disapp ears in about 2 s. The
current trigger level value is displayed at the upper-right corner of the screen.
Note: In Runt Trigger, Slope Trigger, and Window trigger, you need to set the
upper and lower limits of the trigger level. You can modify the level by rotating
the Trigger
and lower limit of the tr igger level is displayed at the upper-right side of the
screen. Two trigger level labels (
screen. Meanwhile, the real-time trigger level information is displayed at the
lower-left side of the screen, as s hown in the figure below. H indicates the upper
limit of the trigger level, L indicates the lower limit of the trigger level, and △
indicates the deviation of the trigger level.
k nob to adjust the trigger level. During the adjustment, a trigger level
" are displayed on the screen, and they
LEVEL knob. The difference between the current upper limit
and ) are displaye d at t he left side of the
When the trigger source is EXT, rotate the Trigger
the trigger level. The current trigger level value is displayed at the upper-right
corner of the screen.
Note: For this trigger source, only the variation of the trigger level value is
displayed on the screen during the adjustment of the trigger level, without
displaying the trigger level lines on the scr ee n.
When the trigger source is AC Line, there is no trigger level.
When the trigger source is selected from D0 to D15, rotate the Trigger
LEVEL
displayed at the up per-rig ht corne r of th e scre en. In addition, you can also press
LA to enter the LA logic analysis setting menu. Then set the thr eshold level of
the digital channel in the sub-menu threshold setting. For the setting method,
refer to "
You can also enable the touch screen function to adjust the trigger
level/threshold level. Two methods are available for you:
MSO8000 User's Guide 5-3
k nob to adjust the threshold level. The current threshold level value is
To Set the Threshold".
LEVEL k nob to ad just
RIGOL Chapter 5 To Trigger the Oscilloscope
Pre-trigger Buffer
Post-trigger Buffer
Trigger Event
Acquisition Memory
Level Input Field Decrease the level Increase the level
Method 1: Enable the touch screen and drag the trigger level line to adjust the
trigger level. For details about the operations, refer to descriptions in "Drag"
section.
Method 2: Enable the touch screen function, and tap the trigger setting label
at the upper-right corner of the screen. The following window is
displayed. Tap the icon at the right side of the Level input field to
decrease or increase the trigger level. You can also tap the Level input f ield to
input a specific value with the displayed numeric keypad.
Trigger Mode
The following is the sc hematic diagram of the acquisition memory. To easily
understand the trigger eve nt, we classify t he acquisition memory into the pre-trigger
buffer an d pos t-trigger buffe r.
Figure 5-1 Schematic Diagram of the Acquisition Memor y
After the system runs, t he oscilloscope operates by first filling the pre-trigger buffer.
It starts searching for a trigger after the pre-trigger buffer is filled. While searching
for the trigger, the data sampled will stil l be t ransmit ted t o the pre-trigger buf fer (the
new data will continuously ove rwrite the previous data). When a trig ger is found, the
pre-trigger buffer contains the data acquired just before the trigger. Then, the
oscilloscope will fill the post-trigger buffer and display the data in the acquisition
memory. If the acquisition is activated via RUN/STOP, the oscilloscope will repeat
this process; if the acquisition is activated via SINGLE, the oscilloscope will stop
after finishing a single acquisition (you can pan and zoom the currently displayed
waveform).
5-4 MSO8000 User's Guide
Chapter 5 To Trigger the Oscilloscope RIGOL
MSO8000 provides three trigger modes: Auto, Normal, and Single. The default is
Auto.
In the trigge r cont rol are a (Trigger) on the front panel, press Mode to quickly switch
the current trigger mode. The trigger mode is displayed at the upper-right corner of
the screen: A (Auto), N (Normal), and S (Singl e) .
Auto: In this trigger mod e, if the specified trigger conditions are not found,
triggers are forced and acquisitions are made so as to display the waveforms.
This trigger mode should be used when the signal level is unknown or the DC
should be displayed as well as when forcible trigger is not necessary as the
trigger condition always occurs.
Normal: In this trigger mode, triggers and acquisitions o nly occur when the
specified trigger conditions are found. This trigger mode should be used when
the signal is with low r epetition rate or only the event specified by the trigger
setting needs to be sampled as well as when aut o trigger should be prevented t o
acquire stable display.
Single: In this trigger mode, the oscilloscope performs a single trigger and
acquisition when the specified trigger conditions are found, a nd then stops. Thi s
trigger mode should be used when you need to perform a single acquisition of
the specified event and analyze the acquisition result (you can pan and zo om
the currently displayed waveform, and the subsequent waveform data will not
overwrite the current waveform). After a single trigger mode is initiated, the
operating status of the oscilloscope is in "STOP" state.
Note: In "Normal" and "Single" trigger modes, pressing Force can generate a
trigger signal forcibly.
In addition, you can enable the touch screen to set the trigger mode. Enable the
touch screen and tap the trigger setting label
at the upper-right
corner of the screen. Then the following window is displayed. Tap to select "Auto",
"Normal", or "Single" as the trigger mode.
MSO8000 User's Guide 5-5
RIGOL Chapter 5 To Trigger the Oscilloscope
Tip
changes of the trigger level values at the upper-right corner of the screen.
Holdoff Time
Tri gger Position
t1
t2
Trigger Coupling
Trigger coupling decides which kind of components will be transmitte d to t he trigger
module. Please distinguish it from "Channel Coupling
Note: Trigger coupling is only valid when the trigger type is Edge and the trigger
source is an analog channel.
Press Menu Coupling in the trigger control area (Trigger) on the front panel.
Then, rotate the multifunction knob to select the desired coupling mode (by
default, it is DC). You can also press Coupling continuously to select it or enable the
touch screen to select the desired coupling mode with touch gestures.
DC: allows DC and AC components to pass the trigger path.
AC: blocks the DC comp onents and attenuates signals.
LFR: blocks the DC comp onents and rejects the low-frequency components.
HFR: rejects the high frequency components.
When "AC" or "LFR" is selected under Coupling, no trigger level lines and trigger
icons are displayed. When you adjust the trigger level, you can only see the
".
Trigger Holdoff
Trigger holdoff can be used to stably trigger on complex repetitive waveforms that
have multiple edges (or other events) between wave form repetitions (such as pulse
series). Holdoff time ind icates the time that the oscilloscope waits for re-arming the
trigger module after generating a correct trigger. The oscilloscope will not trigger
even if the trigger condition is met during the holdoff time and will only re-arm th e
trigger module after the holdoff time expires.
For example, to stably trig ger the repetitive pulse series as s hown in t he figure below ,
the holdoff time should be set t o a value that is greater than t1 and smaller than t2.
Figure 5-2 Schematic Diagram of Trigger Holdoff
5-6 MSO8000 User's Guide
Chapter 5 To Trigger the Oscilloscope RIGOL
In the trigger control area (Trigger) on the fron t pan el , press Menu Holdoff (for
some trigger, Holdoff is a sub menu under More, at this time, press Menu More
Holdoff) and then rotate the multifunction k nob at a small step to modify t he
holdoff time (the holdoff to this time when the wavefor ms are stably triggered; by
default, the holdoff time is 16 ns). Also, y ou can use the numeric keyp ad to set the
holdoff time. The adjustable range of hold off time is from 8 n s t o 10 s.
Noise Rejection
Noise rejection can reject the high frequency noise in the signal and reduce the
possibility of miss-trigger of the oscilloscope.
In the trigger control area (Trigger) on the front panel, press Menu to enter the
trigger setting menu, then press Noise Reject continuously (for some trigger,
Noise Reject is a sub menu under More, at this time, press Menu More
Noise Reject) to enable or disable noise rejection.
Note: This function is only available when the trigger source is an analog channel.
MSO8000 User's Guide 5-7
RIGOL Chapter 5 To Trigger the Oscilloscope
Trigger Type
MSO8000 series oscilloscope provides the following trigger functions (all the triggers
are hardware triggers, excep t the zone trigger).
Edge Trigger
Pulse Trigger
Slope Trigger
Video Trigger
Pattern Trigger
Duration Trigger
Timeout Trigger
Runt Tr igge r
Window Trigger
Delay Trigger
Setup/Hold Trigger
Nth Edge Trigger
RS232 Trigger (Option)
I2C Trigger (Option)
SPI Trigger (Option)
CAN Trigger (Option)
FlexRay Trigger (Option)
LIN Trigger (Option)
I2S Trigger (Option)
MIL-STD-1553 Trigger (Option)
5-8 MSO8000 User's Guide
Chapter 5 To Trigger the Oscilloscope RIGOL
Edge Trigger
Triggers on the t rigger level/threshold level of t he specified edge of the input s ignal .
Trigger Type:
Press Menu Type in the trigger control area (Tr igger) on the front panel and
rotate the multifunction knob to select "Edge", then press down the knob to
select it. Y ou can also press Type continuously or enable the touch screen to t ap the
desired tri gge r type and select it. At this time, the cur rent trig ger set ting info rmat ion
(including trigger type, trig ger source, and trigger level/threshold level) is displayed
at the upper-right corner of the screen, as shown in the figure below. The
information will change based on the trigger settings.
Source Selection:
Press Source to open the signal source list and select C H1-CH4, A C Line, EXT, or
D0-D15. For details, refer to descriptions in "
source is displayed at the upper-right corner of the screen.
Note: Only when we select the channel (that has been input with signals) as the
trigger source, can we ob tain a stable trigger.
Edge Type:
Press Slope, and then rotate the multifunction kno b to select the input signal
the edge on which the oscilloscope trig gers. Then, the current edge type is displayed
at the upper-right corner of the scr een. You can also press the Slope key
continuously or enable the touch screen to select the desired edge type.
Rising: triggers on the risi ng e dge of t he in put signa l when the v oltage leve l
meets the specified trigger level.
meets the specified trigger level.
voltage level meets the preset trigger level.
Trigger Mode:
In the trigge r cont rol are a (Trigger) on t he fron t pan el, press Mode to quickly switch
the current trigger mode. For details, refer to descriptions in "Trigger Mode".
Trigger Parameter Setting:
Set the trigger parameters (trigger coupling, trigger holdoff, and noise rejection)
under this trigger type. For details, refer to descriptions in "Trigger Coupling",
"Trigger Holdoff", and "Noise Rejection".
Falling: triggers on the falling edge of the input signal when the voltage level
Either: triggers on the rising or falling edge of the input signal when the
Trigger Source". The current trigger
MSO8000 User's Guide 5-9
RIGOL Chapter 5 To Trigger the Oscilloscope
Trigger
Level
Trigger
Level
+Width
A
B
-Width
A
B
Trigger LEVEL/Threshold Level:
Rotate the Trigger
Please refer to descriptions in "
LEVEL knob to adjust the trigger level or threshold leve l.
Trigger LEVEL/Threshold Level". The current
trigger level/threshold lev el value is displayed at the upper-ri ght corner of the screen .
Pulse Trigger
Triggers on the positive or negative pulse with a specif ied width. In this mode, the
oscilloscope will trigger when the pulse width of the input signal satisfies the
specif ied pulse width condition.
In this oscilloscope, positive pulse width is defined as the time difference between
the two crossing points of the tri gger level a nd positiv e pulse; negative pulse w idth is
defined as the time difference between the two crossing points o f the trigger level
and negative pulse, as shown in the figure below.
Figure 5-3 Positive Pulse Width/Negativ e Pulse Width
Trigger Type:
Press Type, and then rotate the multifunction knob to select "Pulse". Press
down the knob to select the trigger type. Then, the current trigger setting
information is displayed at the upper-right corner of the screen, as shown in the
figure below. You can also press the Type key continuously or enable the touch
screen to select the desired trigger type.
Source Selection:
Press Source to open the signal source list and select CH1-CH4 or D0-D15. For
details, refer to descriptions in "
Trigger Source". The current trigger source is
displayed at the upper-right corner of the screen.
Note: Only when we select the channel (that has been input with signals) as the
5-10 MSO8000 User's Guide
Chapter 5 To Trigger the Oscilloscope RIGOL
trigger source, can we ob tain a stable trigger.
Polarity:
Press Polarity continuously t o select the desired p olarity. The polarities available are
positive polarity (
) and negative polarity ( ).
Trigger Condition:
Press When, then rotate the multifunction knob to select the trigg e r condi tion,
and then press down the knob to select the trigger condition. You c an also press
When continuously to select the tri gger condition or enable the touch screen to tap
the desired trigger condition and select it.
When you select " Positive" for polarit y, ">" for trigger c ondition, the oscilloscope
triggers when the positive pulse width of the input signal is greater than the
specified pulse width.
When you select " Positive" for polarit y, "<" for trigger c ondition, the oscilloscope
triggers when the positive pulse width of the input signal is smaller than the
specified pulse width.
When you select "Positive" for polarity, "<>" for trigger condition, the
oscilloscope triggers when the positiv e pulse width of the input signal is greater
than the specified lower limit of pulse width and smaller than the specified
upper limit of pulse width.
When you select "Negative" for polarity, ">" for trigger co ndition, the
oscilloscope triggers when the negativ e pulse width of the input signal is greater
than the specified pulse width.
When you select "Negative" for polarity, "<" for trigger condition, the
oscilloscope triggers when the negative pulse width of the in put signal is small er
than the specified pulse width.
When you select "Negative" for polarity, "<>" for trigger condition, the
oscilloscope triggers when the negativ e pulse width of the input signal is greater
than the specified lower limit of pulse width and smaller than the specif ied
upper limit of pulse width.
Pulse Width Se tting:
When ">" or "<" is set to the trigger condition, press Lower or Upper, and
then rotate the multifunction knob to set the desired value; or press down the
multifunction knob
to set the lower limit value or the upper limit value. You
can also use the pop-up numeric keypad to set i t. The pulse range available is
from 800 ps to 10 s.
When "<>" is set to the trigger condition, press Upper and Lower, and th en
rotate the multifunction kn ob
to set the lower limit value and the upper limit
value. You can also use the pop-up numeric keypad to set them.
Note: The lower limit of the pulse width must be smaller than the upper limit.
Trigger Mode:
In the trigge r cont rol are a (Trigger) on t he fron t pan el, press Mode to quickly switch
MSO8000 User's Guide 5-11
RIGOL Chapter 5 To Trigger the Oscilloscope
Upper Limit of Trigger Level
A
Positive Slope Time
the current trigger mode. For details, refer to descriptions in "Trigger Mode".
Trigger Parameter Setting:
Set the tri gger param eters (trigger holdoff and noise rejection) under this trigger
type. For details, refer to descriptions in "Trigger Holdoff" and "Noise
Rejection".
Trigger LEVEL/Threshold Level:
Rotate the Trigger
Please refer to descriptions in "
LEVEL knob to adjust the trigger level or threshold level.
Trigger LEVEL/Threshold Level". The current
trigger level/threshold lev el value is displayed at the upper-ri ght corner of the screen .
Slope Trigger
In Slope trigger, the oscilloscope triggers on the positive or negative slope of the
specif ied time. This trigger mode is applicable to ramp and triangle wavefor ms.
In this oscilloscope, positive slope time is defined as the time difference between the
two crossing points of trigger level line A and B with the rising edge; negative slope
time is defined as the time difference between the two crossing points of trigger level
line A and B with the falling edge, as show n i n t he figure below.
B
Negative Slope Time
Figure 5-4 Positive Slope Time/Negativ e Slope Time
Trigger Type:
Press Type, and then rotate the multifunction knob to select "Slope". Press
down the knob to select the trigger type. Then, the current trigger setting
information is displayed at the upper-right corner of the screen, as shown in the
figure below. Y ou can also press Type continuously or enable the touch s creen to ta p
the desired trigger type and select it.
(Up Level)
Lower Limit of Trigger Level
(Low Level)
Source Selection:
Press Source to switch the trigger source and select CH1-CH4. For details, refer to
descriptions in "
5-12 MSO8000 User's Guide
Trigger Source". The current trigger source is displayed at the
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