RIGOL
User’s Guide
MSO4000/DS4000 Series
Digital Oscilloscope
Mar. 2015
RIGOL Technologies, Inc.
RIGOL
Guaranty and Declaration
Copyright
© 2013 RIGOL Technologies, Inc. All Rights Reser ved.
Trademark Information
RIGOL is a registered tradem ark of RIGOL Technologies, Inc.
Publication Number
UGA15106-1110
Software Version
00.02.02.SP3
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 company’s sole decision.
Information in this publication replaces all previously corresponding material .
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 performan ce of this manual as well as any
information contained.
Any part of this document is forbidden to be copied, phot oco pi ed or rearranged
without prior written approval of RIGOL.
Product Certification
RIGOL guar antees this pr oduct confo rms to the national and industrial standards in
China as well as the ISO9001:2008 standard and the ISO14001:2004 standard.
Other international standard conformance certification is in progress.
Contact Us
If you have any problem or requirement when using our product s or this manual,
please contact RIGOL.
E-mail: service@rigol.com
Website: www.rigol.com
MSO4000/DS4000 User’s Guide I
RIGOL
Safety Requirement
General Safety Summary
Please review the following safety precautions carefully before putting the
instrument into operation so as to avoid any personal injury or damage t o t he
instrument and any product connecte d to it. To prevent potential hazards, plea se use
the instrument only specified by this manual.
Use Proper Power Cord.
Only the power cord designed for the instrument and authorized for use within the
local country could be used.
Ground the Instrument.
The instrument is grounded through the Protective Earth lead of the power cord. To
avoid electric shock, it is e ssential t o connect the ea rth terminal of the power cord to
the Protective Earth terminal before connecting any inputs or outputs.
Connect the Probe Correctly.
If a probe is used, do not connect the ground lead to high voltage since it has
isobaric electric potential as the ground.
Observe All Terminal Ratings.
To avoid fire or shock hazard, observe all ratin gs and ma rkers on the ins trument and
check your manual for more information about ratings before connecting the
instrument.
Use Proper Overvoltage Protection.
Make sure that no overvoltage (such as that caused by a thunderstorm) can reach
the product, or else the operator might be exposed to the danger of electrical shock .
Do Not Operate Without Covers.
Do not operate the instrument with covers or panels removed.
II MSO4000/DS4000 User’s Guide
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Do Not Insert Anything Into the Holes of Fan.
Do not insert anything into the holes of the fan to avoid damaging the instrument.
Use Proper Fuse.
Please use the specified fuses.
Avoid Circuit or Wire Exposure.
Do not touch exposed junctions and components when the unit is powered.
Do Not Operate With Suspected Failures.
If you suspect damage occurs to the instrument, have it inspected by RIGOL
authorized personnel before further oper at io ns. Any maintenance, adjustment or
replacement especially to circuits or accessories must be performed by RIGOL
authorized personnel.
Keep Well Ventilation.
Inadequate ventilation may cause an increase of instrument temperature which
would cause damage to the instrument. So please keep the instrument well
ventilated and inspect the intake and fan regularly.
Do Not Operate in Wet Con d i tio n s.
In order to av oid short circuiting t o the interi or of the device or electric shock, please
do not operate the instrument in a humid environment.
Do Not Operate in an Explosive Atmosphere.
In order to avoid damage to the device or personal injuries, it is important t o operate
the device away fr om an exp losive a tmosphere.
Keep Product Surfaces Clean and Dry.
To avoid the influence of dust and/or moisture in the air, please keep the surface of
the device clean and dry.
Electrostatic Prevention.
Operate the instrument i n an ele ctrostatic dischar ge protectiv e envir onment to avoid
damage induced by static discharges. Always ground both the internal and external
conductors of cables to release static before making connections.
MSO4000/DS4000 User’s Guide III
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Proper Use of Battery.
If a battery is supplied, it must not be exposed to high temperature or in contact with
fire. Keep it out of the reach of children. Improper change of battery (note: lithium
battery) may cause explosion. Use RIGOL specified battery only.
Handling Safety.
Please handle with care during transportation to avoid damage to buttons, knob
interfaces and other parts on the panels.
IV MSO4000/DS4000 User’s Guide
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CAUTION
DANGER
Hazardous
Safety
Protective
Terminal
Chassis
Test
Safety Terms and Symbols
Terms Used in this Manual. These terms may appear in this manual:
WARNING
Warning statements indicate conditions or practices that could result in
injury or loss of life.
Caution statements indicate conditions or practices that could result in
damage to this product or other property.
Terms Used on the Product. These terms may appear on the product:
It ca ll s 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 pe rformed, could
result in
CAUTION It calls attention to an operation, if not correctly pe rformed, could
result in
product.
Symbols Used on the Product. These symbols may appear on the product:
potential injury or hazard.
damage to the product or other devices connected to the
Voltage
Warning
Earth
Ground
Ground
MSO4000/DS4000 User’s Guide V
RIGOL
Allgemeine Sicherheits Informationen
Überprüfen Sie diefolgenden Sicherheitshinweise
sorgfältigumPersonenschädenoderSchäden am Gerätundan damit verbundenen
weiteren Gerätenzu vermeiden. Zur Vermeidung vonGefa hren, nutze n Sie bitte d a s
Gerät nur so, wiein diesem Handbuchangegeben.
Um Feuer oder Verletzungen zu vermeiden, verwenden Sie ein
ordnungsgemäßes Netzkabel.
Verwenden Sie für dieses Gerät nur das für ihr Land zugelassene und genehmigte
Netzkabel.
Erden des Gerätes.
Das Gerät ist durch den Schutzleiter im Netzkabel geerdet. Um Gefahren durch
elektrischen Schlag zu vermeiden , ist es unerlässlich, die Er dung durchzufüh ren. Erst
dann dürfen weitere Ein- oder Ausgänge verbunden werden.
Anschluss einesTastkopfes.
Die Erdungsklemmen der Sonden sindauf dem gleichen Spannungspegel des
Instruments geerdet. SchließenSie die Erdungsklemmen an keine hohe Spannung
an.
Beachten Sie alle Anschlüsse.
Zur Vermeidung von Feuer oder Stromschlag, beachten Sie alle Bemerkungen und
Markierungen auf dem Instrument. Bef olgen Sie die Bedienun gsanleitung für weitere
Informationen, bevor Sie weitere Anschlüsse an das Instrument legen.
Verwenden Sie einen geeigneten Überspannungsschutz.
Stellen Sie sicher, daß keinerlei Überspannung (wie z.B . du rch Gewitter verursacht)
das Gerät erreichen kann. Andernfallsbestehtfür den Anwender die
GefahreinesStromschlages.
Nicht ohne Abdeckung einschalten.
Betreiben Sie das Gerät nicht mit entfernten Gehäuse-Abdeckungen.
VI MSO4000/DS4000 User’s Guide
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Betreiben Sie das Gerät nicht geöffnet.
Der Betrieb mit offenen oder entfernten Gehäuseteilen ist nicht zulässig. Nichts in
entsprechende Öffnungen stecken (Lüfter z.B.)
Passende Sicherung verwenden.
Setzen Sie nur die spezifikationsgemäßen Sicherungen ein.
Vermeiden Sie ungeschützte Verbindungen.
Berühren Sie keine unisolierten Verbindungen o der Baugrup pen, w ährend das Gerät
in Betrieb ist.
Betreiben Sie das Gerä t n ic h t im Fehlerf a ll .
Wenn Sie am Gerät einen Defekt vermuten, sorgen Sie dafür, bevor Sie das Gerät
wieder betreiben, dass eine Untersuchung durch RIGOL autorisiertem Personal
durchgeführt wird. Jedwede W artun g, Einstellarbeit en oder Austausch v on Teilen am
Gerät, sowie am Zubehör dürfen nur von RIGOL autorisiertem Personal
durchgeführt werden.
Belüftung sicherstellen.
Unzureichende Belüftung kann zu Temperaturanstiegen und somit zu thermischen
Schäden am Gerät führen. Stellen Sie deswegen die Belüftung sicher und
kontrollieren regelmäßig Lüfter und Belüftungsöffnungen.
Nicht in feuc h te r Um g ebung betreiben.
Zur Vermeidun g von Kurzschluß im Geräteinne ren und Stromschlag betreiben Sie das
Gerät bitte niemals in feuchter Umgebung.
Nicht in explosiver Atmosphäre betreiben.
Zur Ve rm e idung von Personen- und Sachschäden ist es unumgä ngli ch, das Ger ät
ausschließlich fernab jedweder explosiven At mosphäre zu betreiben.
Geräteoberflächen sauber und trocken halten.
Um den Einfluß von Staub und Feuchtigkeit aus der Luft auszuschließen, halten Sie
bitte die Geräteoberflächen sauber und trocken.
Schutz gegen elektrostatische Entladung (ESD).
Sorgen Sie für eine elektrostatisch geschützte Umgebung, um somit Schäden und
MSO4000/DS4000 User’s Guide VII
RIGOL
Funktionsstörungen durch ESD zu vermeiden. Erden Sie vor dem Anschluß immer
Innen- und Außenleiter der V erbindungsleitung, um st atische Aufladung zu entladen.
Die richtige Verwendung desAkku.
Wenneine Batterieverwendet wird, vermeiden Sie hohe Temperaturen bzw. Feuer
ausgesetzt werden. Bewahren Sie es außerhalbder Reichweitevon Kindern auf.
UnsachgemäßeÄnderung de rBa tterie (Anmerkung: Lithium-Batterie) kann zu einer
Explosion führen. VerwendenSie nur von RIGOL angegebenenAkkus.
Sicherer Transport.
Transportieren Sie das Gerät sorgfältig (Verpackung!), um Schäden an
Bedienelementen, Anschlüssen und anderen Teilen zu vermeiden.
VIII MSO4000/DS4000 User’s Guide
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CAUTION
CAUTION
Sicherheits Begriffe und S ymb ole
Begriffe in diesem Guide. Diese Begrif fe können in diesem Handbuch aufta uchen:
WARNING
Die Kennzeichnung WARNING beschreibt Gefahrenquellen die leibliche
Schäden oder den Tod von Personen zur Folge haben können.
Die Kennzeichnung Caution (Vorsicht) beschreibt Gefahrenquellen die
Schäden am Gerät hervorrufen können.
Begriffe auf dem Produkt. Diese Bedingungen können auf dem Produkt
erscheinen:
DANGER weist auf eine Verletzung ode r Gefäh r dun g hin, die sof ort
geschehen kann.
WARNING weist auf eine V erletzung oder Gefährdung hin , die möglicherweise
nicht sofort geschehen.
weist auf eine Verletzun g oder Gefährdung hin und bedeutet, dass
eine mögliche Beschädigung des I nstruments o der anderer
Gegenstände auftreten kann.
Symbole auf dem Produkt. Diese Symbole können auf dem Produkt erscheinen:
Gefährliche
Spannung
SicherheitsHinweis
Schutz-erde Gehäusemasse Erde
MSO4000/DS4000 User’s Guide IX
RIGOL
Measurement Category
MSO4000/DS4000 series digital oscilloscopes can make measurements in
measurement category I.
WARNING
This oscilloscope can only be used for measurements within its specified
measurement categories.
Measurement Category Definitions
Measurement category I is for measurements performed on circuits not directly
connected to MAINS. Example s are measure me n t s on circuits n ot derived fro m
MAINS, and specially protected (internal) MAINS derived circuits. In the latter case,
transient stresses are variable. For that reason, the transient limit capabilit y of the
equipment is made known to the user.
Measurement category II is for measurements performed on circuits directly
connected to a low voltage installation. Examples are measurements on household
appliances, portable tools and similar equipment.
Measurement category III is for measurements performed in building installations.
Examples are measurements on distribution boards, circuit-breakers, wiring,
including cables, bus-bars, junction boxes, switches, socket-outlets in the fixed
installation, equipment for industrial use and some other equipment, for example,
stationary motors with permanent connection to the fixed installation).
Measurement category IV is for measurements performed at the source of a
low-voltage installation. Examples are electricity meters and measurements on
primary overcurrent protection devices and ripple control units.
X MSO4000/DS4000 User’s Guide
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Ventilation Requirement
This oscilloscope uses fan to force cooling. Please make sure that the air intake 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.
WARNING
Inadequate ventilation may cause a temperature increase which can
damage the instrument. So please keep the instrument well ventilated
during operation and inspect the intake and fan regularly.
MSO4000/DS4000 User’s Guide XI
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WARNING
Working Environment
Temperature
Operating: 0℃ to +50℃
Non-operating: -40℃ to +70℃
Humidity
0℃ to +30℃: ≤95％ relative humidity
+30℃ to +40℃: ≤75％ relative humidity
+40℃ to +50℃: ≤45％ relative humidity
WARNING
To avoid short circuits or electric shock, please do not operate in humid
environment.
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.
Make sure that no ove rvoltage (such as that cause d by a thunderbolt) can
reach the product, or else the operator might be exposed to the danger of
electric shock.
Installation (Overvoltage) Cate g o ry Definitions
Installation (overvoltage) c ategory I refers to signal level which is applicable to
equipment measurement terminals connected to the source circuit. In these
terminals, precautions are done to limit the transient voltage to the corresponding
low level.
Installation (overvoltage) category II refers to the local power d istribution level
which is applicable to equip ment connected to the AC line (AC power).
XII MSO4000/DS4000 User’s Guide
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Pollution Degree
Degree 2
Pollution Degree Definitions
Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The
pollution has no influence. For example, a clean room or air-conditioned office
environment.
Pollution degree 2: Normally only dry, non-conductive pollution occurs. An occasional
and temporary conductive environment may caused by condensation. For example, a
general indoor environment.
Pollution degree 3: Conductiv e pollution occurs, or dry, non-conductive pollution
occurs which becomes conductive due to condensation. For example, a sheltered
outdoor environment.
Pollution degree 4: Pollution that generates persistent conductivity through
conductive dust, rain, or snow. For exa mple, outdoor locations.
Safety Class
Class 1 – Grounded Product
MSO4000/DS4000 User’s Guide XIII
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General Care and Cleaning
General 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 regularly according to its operating conditions. To clean the
exterior surface, perform the following steps:
1. Disconnect the instrument from all power sourc es.
2. Clean the loose dust on the outside of the i nstrument with a lint -f ree cloth (with
a mild detergent or water). When cleaning the LCD, take care to av oid scarif ying
it.
CAUTION
To avoid damage to the instrument, do not expose it to caustic liquids.
WARNING
To avo id short-circuit or persona l injury resulting from moisture, make
sure the instrument is completely dry before reconnecting it to power
supply.
XIV MSO4000/DS4000 User’s Guide
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Environmental Considerations
The following symbol indicates that this product complies with the WEEE Directive
2002/96/EC.
Product End-of-Life Handling
The equipment may contain substances that could b e ha rmful to the environ ment or
human health. In order to avoid the release of such substances into the environ ment
and harm to human health, we encourage you to recycle this product in an
appropriate system that w ill ensure that most of the materials are reused or re cycled
appropriately. Please contact your local authorities for disposal or recycling
information.
MSO4000/DS4000 User’s Guide XV
RIGOL
MSO4000/DS4000 Series Overview
MSO4000/DS4000 is a multifu nctional and high-performance digital oscilloscope
developed using RIGOL Ultr a Vision chipset. MSO4000 series is a mixed-signal
oscilloscope whi ch is optimized for the debugging in embedded design and test areas
that require simultaneous measu rement of both analog and digital signals. MSO4000
provides superb specifications, convenient functions, and easy-to-use design which
help users fulfill their tasks (such as measurement and remote control) more quickly .
Main feature s:
500 MHz, 350 MHz, 200 MH z and 100 MHz bandwidth; s ome models support th e
bandwidth upgrade funct ion
2+16 channel or 4+16 channel MSO4000 series mixed signal oscilloscope
Dual-channel or 4-channel DS4000 series digital oscilloscope
Up to 4 GSa/ s analog channel sample rate, 140 Mpts maximum memory dep th
(standard). Up to 1 GSa/s digital channel sample rate, 28 Mpts maximum
memory depth (per channel)
110 000 wfms/s (digital channels are turned off) waveform refresh rate or 85
000 wfms/s (digital channels are turned on) waveform refresh rate (dots
display)
UltraVision technique
9.0 inch WVGA (800*480) 160 000 color TFT LCD, with ultra-wide screen, viv i d
picture, low power consumption and long service life
Automatic probe identification
Adjustable brightness of analog channel waveform
Auto setting of waveform display (AUTO)
Various trigger functions including multiple protocol triggers and supporting
digital channels as trigger source
Provide standard parallel decoding, multiple serial decoding options and mixed
decoding using analog channel and digital channel as the decoding source at the
same time
Auto measurements of 29 waveform parameters and measurement functions
with statistics
Real-time waveform recording, waveform playback, record open (constant on)
and waveform analysis, supporting recording a n d playback of digital channel
waveforms
XVI MSO4000/DS4000 User’s Guide
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Precise delayed sweep function
Built-in FFT function
Built-in logic analyzer function (MSO4000 series)
Pass/Fail test function
Multiple waveform math operation functions
Standard interfaces: dual USB HOST, USB DEVICE, LAN and GPIB (optional)
Support USB storage device and PictBridge printer
Conform to LXI-C standard; enab le qui ck , ec o no m ic and efficient creation and
reconfiguration of test system
Support remote command control
Embedded help enables easier information access
Support multiple languages and Chinese/English input
Support one-key measurement, storage and print
Convenient digital channel grouping and operating functions
MSO4000/DS4000 User’s Guide XVII
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Document Overview
Main Topics in this manual:
Chapter 1 Quick Start
Introduce the preparations before using the instrument and introduce the
instrument.
Chapter 2 Vertical System Setting
Introduce the functions o f the vertical system of the oscilloscope.
Chapter 3 Horizontal System Setting
Introduce the functions o f the horizontal system of the oscilloscope.
Chapter 4 Sample System Setting
Introduce the functions o f the sample system of the oscilloscope.
Chapter 5 Trigger
Introduce the trigger mode, trigger coupling, trigger holdoff, external trigger and
various trigger types of the oscilloscope.
Chapter 6 Operations and Measurements
Introduce how to make math operation, auto measurement and cursor
measurement.
Chapter 7 Logic Analyzer
Introduce how to use the logic analyzer function.
Chapter 8 Protocol Decoding
Introduce how to decode the input signal using those common protocols.
Chapter 9 Reference Waveform
Introduce how to compare the input waveform with the reference waveform.
Chapter 10 Pass/Fail Test
Introduce how to monitor the input signal using the Pass/Fail test.
XVIII MSO4000/DS4000 User’s Guide
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Chapter 11 Waveform Recording
Introduce how to record wa veform as well as how to play ba ck and analyze the
recorded waveform.
Chapter 12 Display Control
Introduce how to contro l the display of the oscilloscope.
Chapter 13 Store and Recall
Introduce how to perform external/internal storage and recall.
Chapter 14 System Function Setting
Introduce how t o set the remote interface and system-related functions.
Chapter 15 Remote Control
Introduce how to control the oscilloscope remotely.
Chapter 16 Troubleshooting
Introduce how to deal with common failures of the oscilloscope.
Chapter 17 Specifications
List the specifications and general specifications of the oscilloscope.
Chapter 18 Appendix
Provide common information such as options and acc essor ies.
MSO4000/DS4000 User’s Guide XIX
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Format Conventions in this Manual:
1. Key
The key at the front panel is denot e d by the format of “Button Name (Bol d) +
Text Box”. For example, Utility denotes the “Utility” key.
2. Menu Softkey
The menu softkey is denoted by the format of “Menu Word (B old) + Character
Shading”. For example, System denotes the “System” menu softkey under
Utility.
3. Operation Step
The next step of operatio n i s denoted by a n a rrow “”. For example, Utility
System denotes pressing Utility at the front panel and then pressing System.
4. Knob
Label Knob
HORIZONTAL SCALE
HORIZONTAL POSITION
VERTICAL SCALE
VERTICAL POSITION
TRIGGER LEVEL
LA
Horizontal Time Base Knob
Horizontal Position Knob
Channel Verti ca l Scale Knob
Channel Verti ca l Position Knob
Trigger Level Knob
LA Knob
XX MSO4000/DS4000 User’s Guide
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Content Conventions in this Manual:
MSO4000/DS4000 series inclu des the f ollowin g mod els. Unless othe rwise n oted, this
manual takes MSO4054 as an example to illustrate the func tions and performances
of MSO4000/DS4000 series.
Model
MSO4054 500 MHz 4 250 MHz 16
MSO4052 500 MHz 2 250 MHz 16
MSO4034 350 MHz 4 250 MHz 16
MSO4032 350 MHz 2 250 MHz 16
MSO4024 200 MHz 4 250 MHz 16
MSO4022 200 MHz 2 250 MHz 16
MSO4014 100 MHz 4 250 MHz 16
MSO4012 100 MHz 2 250 MHz 16
DS4054 500 MHz 4 -- -DS4052 500 MHz 2 -- -DS4034 350 MHz 4 -- -DS4032 350 MHz 2 -- -DS4024 200 MHz 4 -- -DS4022 200 MHz 2 -- -DS4014 100 MHz 4 -- -DS4012 100 MHz 2 -- --
Analog
Bandwidth
Number of
Analog Channels
Digital Channel
Bandwidth
Number of
Digital Channels
User Manuals of this Product:
The main manuals of this product include the Quick Guide, User’s Guide,
Programming Guide and etc. For the newest version of the desired manual, please
download it from RIGOL official website (
www.rigol.com).
MSO4000/DS4000 User’s Guide XXI
RIGOL Contents
Contents
Guaranty and Declaration ......................................................................... I
Safety Requirement ................................................................................. II
General Safety Summary........................................................................... II
Safety Terms and Symbols ........................................................................ V
Allgemeine Sicherheits Informationen ....................................................... VI
Sicherheits Begriffe und Symbole .............................................................. IX
Measurement Category ............................................................................. X
Ventilation Requirement ........................................................................... XI
Working Enviro nment ............................................................................. XII
General Care and Cleaning ..................................................................... XIV
Environmental Considerations ................................................................... XV
MSO4000/DS4000 Seri es Over vie w ..................................................... XVI
Document Overview .......................................................................... XVIII
Chapter 1 Quick Start ........................................................................ 1-1
General Inspection ................................................................................. 1-2
Appearance and Dim ensions ................................................................... 1-3
To Prepare the Oscilloscope for Use ......................................................... 1-4
To Remove the Protective Cover ........................................................ 1-4
To Adjust the Supporting Legs .......................................................... 1-5
To Connect to Powe r S upply ............................................................. 1-6
Power-on Inspection ........................................................................ 1-7
To Connect the Probe ....................................................................... 1-8
Passive Probe Function Ins pection& C om pensat ion Adjustment ........... 1-13
Front Panel Overview ........................................................................... 1-16
Rear Panel Overview ............................................................................ 1-17
Front Panel Function Overview .............................................................. 1-19
VERTICAL ..................................................................................... 1-19
HORIZONTAL ................................................................................ 1-20
TRIGGER ...................................................................................... 1-22
CLEAR .......................................................................................... 1-22
AUTO ........................................................................................... 1-23
RUN/STOP .................................................................................... 1-23
XXII MSO4000/DS4000 User’s Guide
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SINGLE ......................................................................................... 1-23
Multi-function Knob ........................................................................ 1-24
Navigation Knob ............................................................................ 1-24
Default ......................................................................................... 1-25
Print ............................................................................................. 1-25
Function Keys ................................................................................ 1-26
Record .......................................................................................... 1-27
LOGIC ANALYZER........................................................................... 1-28
User Interface ...................................................................................... 1-29
To Use the Security Lock ....................................................................... 1-36
To Use the Built-in Help System ............................................................. 1-37
Chapter 2 Vertical Sy stem Setting ...................................................... 2-1
To Turn the Analog Channel On/Off ......................................................... 2-2
To Adjust the Vertical Scale .................................................................... 2-3
To Adjust the Vertical Position ................................................................. 2-4
To Specify the Channel Coupling ............................................................. 2-5
To Specify the Bandwidth Limit ............................................................... 2-6
To Set the Probe ................................................................................... 2-7
Passive Probe ................................................................................. 2-8
Active Probe ................................................................................... 2-9
Tek Probe ...................................................................................... 2-11
To Specify the In pu t Impedance ............................................................ 2-12
To Turn Waveform Invert On/Off ............................................................ 2-13
To Specify the Vertical Reference ........................................................... 2-13
To Specify the Amplitude Unit ................................................................ 2-14
To Set the Channel Label....................................................................... 2-15
To Set the Delay Calibration................................................................... 2-17
Chapter 3 Horizontal System Setting .................................................. 3-1
To Adjust the Horizontal Time Base ......................................................... 3-2
To Adjust the Horizontal Position ............................................................. 3-3
To Specify the Time Base Mode .............................................................. 3-4
Y-T Mode ....................................................................................... 3-4
X-Y Mode ....................................................................................... 3-5
Roll Mode ....................................................................................... 3-9
To Turn Delayed Sweep On /Off .............................................................. 3-10
To Specify the Horizontal Reference ....................................................... 3-13
MSO4000/DS4000 User’s Guide XXIII
RIGOL Contents
Chapter 4 Sample System Setting ...................................................... 4-1
Sample Mode ......................................................................................... 4-2
Sample Rate .......................................................................................... 4-3
LA Sample Rate ..................................................................................... 4-5
To Specify the Acquisition Mode ............................................................... 4-6
Normal ........................................................................................... 4-6
Average .......................................................................................... 4-6
Peak Detect .................................................................................... 4-8
High Resolution ............................................................................... 4-8
To Set the Memory Depth ....................................................................... 4-9
To Turn Anti-aliasing On/Off .................................................................. 4-11
Chapter 5 Trigger ............................................................................... 5-1
Trigger Source ....................................................................................... 5-3
Trigger Level/Threshold Level .................................................................. 5-5
Tri gger Mode ......................................................................................... 5-6
Trigger Coupling..................................................................................... 5-8
Trigger Holdoff ....................................................................................... 5-9
Noise Rejection .................................................................................... 5-10
Trigger Output Connector...................................................................... 5-10
Edge Trigger ........................................................................................ 5-11
Pulse Trigger ....................................................................................... 5-13
Runt Tr igg er ........................................................................................ 5-16
Nth Edge Trigger .................................................................................. 5-20
Slope Trigger ....................................................................................... 5-23
Video Trigger ....................................................................................... 5-28
Pattern Trigger ..................................................................................... 5-31
RS232 Trigger ...................................................................................... 5-34
I2C Trigger .......................................................................................... 5-38
SPI Trigger .......................................................................................... 5-42
CAN Trigger ......................................................................................... 5-45
FlexRay Tri gger .................................................................................... 5-50
USB Trigger ......................................................................................... 5-53
Chapter 6 Operations and Measurements .......................................... 6-1
To Make Math Operation ......................................................................... 6-2
Basic Operations .............................................................................. 6-3
FFT ................................................................................................ 6-5
XXIV MSO4000/DS4000 User’s Guide
Contents RIGOL
Digital Filter.................................................................................... 6-9
Logic Operation ............................................................................. 6-11
Advanced Operation ....................................................................... 6-14
MAT H Waveform Vertical Control ..................................................... 6-19
To Make Auto Measurement .................................................................. 6-20
Quick Measurement after AUTO....................................................... 6-21
To Make One-key Measurement ....................................................... 6-22
To Set the Threshold ...................................................................... 6-30
To Specify the Measurement Range ................................................. 6-31
To Clear the Measurement Results ................................................... 6-32
To Turn the Statistic Function On/Off ............................................... 6-33
To Turn the Measurement History On/Off ......................................... 6-34
To Make All Measurement ............................................................... 6-35
To Turn the Frequency Counter O n/Off ............................................. 6-36
To Make Cursor Measurement ................................................................ 6-37
Manual Mode ................................................................................. 6-39
Track Mo de ................................................................................... 6-48
Auto Mode .................................................................................... 6-51
X-Y Mode ...................................................................................... 6-53
Chapter 7 Logic Analyzer .................................................................... 7-1
To Turn the Digital Channels On/Off ........................................................ 7-2
To Arrange the Digital Channels .............................................................. 7-3
User-defined Arrangeme nt ............................................................... 7-3
Auto Arrangement........................................................................... 7-4
To Perform Grouping Setting ................................................................... 7-4
To Specify the Waveform Display Size ...................................................... 7-5
To Adju s t t h e Thr e s hold Level ................................................................. 7-6
To Use the Digital Bus ............................................................................ 7-7
To Set the Digital Channel Label............................................................. 7-10
To Set the Delay Calibration o f the Digital Channels ................................. 7-11
Digital Channel Waveform and Label Colors ............................................ 7-12
Chapter 8 Protocol Decoding .............................................................. 8-1
Parallel Decoding ................................................................................... 8-2
RS232 Decoding (O ption) ....................................................................... 8-7
I2C Decoding (Option) .......................................................................... 8-15
SPI Decoding (Option) .......................................................................... 8-20
MSO4000/DS4000 User’s Guide XXV
RIGOL Contents
CAN Decoding (Option) ......................................................................... 8-26
FlexRay Decoding (Option) .................................................................... 8-31
Chapter 9 Reference Waveform ......................................................... 9-1
To Turn the Reference Waveform Channel On/Off ...................................... 9-2
To Select the Current Reference Wavef orm Channel .................................. 9-3
To Set the Reference Waveform Color ...................................................... 9-3
To Select the Reference Waveform Sourc e Channel ................................... 9-4
To Save and Display the Reference Waveform ........................................... 9-4
To Adjust the Reference Waveform Display ............................................... 9-5
To Export the Reference Waveform File .................................................... 9-5
To Import from the Reference Waveform File ............................................ 9-6
Chapter 10 Pass/ Fail Test ............................................................ 10-1
To Enable or Disable the Pass/Fail Test Function ...................................... 10-2
To Start or Stop the Pass/Fail Test Operation ........................................... 10-2
To Sp e cify the Sour ce ........................................................................... 10-3
To Set the Te st Mask ............................................................................ 10-3
Screen Region Mode ...................................................................... 10-4
Cursor Regi on Mode ....................................................................... 10-5
To Turn the Test Result Display On/Off ................................................... 10-7
To Set the Output Form of Test Failure ................................................... 10-7
To Save the Tes t Mask Range ................................................................ 10-9
To Load t h e Test Mask Range ................................................................ 10-9
Chapter 11 Waveform Recording ................................................. 11-1
To Record Waveform Using th e “Record” Mode ....................................... 11-2
To Record Waveform Using the “Open” Mode .......................................... 11-6
To P lay Back t he Waveform Recorded ..................................................... 11-7
Manual Playback ............................................................................ 11-7
Auto Playback ............................................................................... 11-8
To Anal yz e t h e Record e d Waveform ..................................................... 11-12
To Set the Template ( Trace Mode) ................................................. 11-17
To Create the Pass/Fail Test Mask (Pass/Fail Test Mode) .................. 11-19
Chapter 12 Display Control .......................................................... 12-1
To Specify the Display Type ................................................................... 12-2
To Set the Persistence Time .................................................................. 12-3
To Set the Waveform Brightness ............................................................ 12-5
XXVI MSO4000/DS4000 User’s Guide
Contents RIGOL
To Specify the Screen Grid Type ............................................................. 12-5
To Set the Grid Brightness ..................................................................... 12-5
To Set the Menu Display Time ............................................................... 12-6
Chapter 13 Stor e and Recall ......................................................... 13-1
Storage System .................................................................................... 13-2
Storage Type ....................................................................................... 13-3
To Perform Internal Storage and R ecall ................................................... 13-5
To Perform External Storage and Recall .................................................. 13-7
Disk Management ............................................................................... 13-10
To Select File Type ....................................................................... 13-11
To Create a New File or Folder ...................................................... 13-12
To Delete a File or Folder .............................................................. 13-17
To Rename a File or Folder ........................................................... 13-18
To Clear the Local Memory ............................................................ 13-18
Factory .............................................................................................. 13-19
Chapter 14 System Func tion Setting ............................................ 14-1
Remote Interfa ce C onfigurati on ............................................................. 14-2
To Configure the LAN Interface ....................................................... 14-2
To Configure the USB Interface ....................................................... 14-8
To Set the GPIB Address ................................................................. 14-8
System-related ..................................................................................... 14-9
Sound ........................................................................................... 14-9
Language ...................................................................................... 14-9
System Informat i on ........................................................................ 14-9
Power-on Load .............................................................................. 14-9
System Time ............................................................................... 14-10
Self-test Information .................................................................... 14-11
Screen Saver ............................................................................... 14-11
Error Informa t ion ......................................................................... 14-12
Self-calibration ............................................................................. 14-13
Print Setting ................................................................................ 14-14
Power Status ............................................................................... 14-16
External Trigger Impedance .......................................................... 14-16
Aux Output ................................................................................. 14-17
Reference Clock ........................................................................... 14-18
Option Management ..................................................................... 14-19
MSO4000/DS4000 User’s Guide XXVII
RIGOL Contents
Chapter 15 Remote Control ......................................................... 15-1
Remote Control via U SB ........................................................................ 15-2
Remote Control via LAN ........................................................................ 15-6
Remote Control via GPIB ....................................................................... 15-9
Chapter 16 Troubleshooting ........................................................ 16-1
Chapter 17 Specifications ............................................................ 17-1
Chapter 18 Appendix ................................................................... 18-1
Appendix A: Accessories and Options ..................................................... 18-1
Append i x B: Warranty ........................................................................... 18-3
Index ........................................................................................................ 1
XXVIII MSO4000/DS4000 User’s Guide
Chapter 1 Quick Start RIGOL
Chapter 1 Quick Start
This chapter introduces the notices w hen using the oscilloscope for the first time, the
front panel, rear panel an d user inte rface as well as the using method of the built-in
help system.
The contents of this chapter:
General Inspection
Appearance and Dimensions
To Prepare the Oscilloscope for Us e
Front
Rear Panel Overview
Front Panel Function Overview
User Interface
To Use the Security Lock
To Use the Built-in Help System
Panel Overview
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RIGOL Chapter 1 Quick Start
General Inspection
1. Inspect the shipping container for damage
Keep the damag ed shipping container or cushioning material until the contents
of the shipment have been checked for completeness and the instrument has
passed both ele ctrica l and mechanical tests.
The consigner or carrier shall be liable for the damage to instrument resulting
from shipment. RIGOL would not be responsible for free maintenance/rework
or replacement of the unit.
2. Inspect the instrument
In case of any damage, or defect, or failure, notify your RIGOL sales
representative.
3. Check the accessories
Please check the accessories according to the packing lists. If th e accesso ries
are incomplete or damaged, please contact your RIGOL sales representative.
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Appearance and Dimensions
Figure 1-1 Front View Unit: mm
Figure 1-2 Side View Unit: mm
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RIGOL Chapter 1 Quick Start
To Prepare the Oscilloscope for Use
To Remove the Protective Cover
Before using the oscilloscope, remove the fr o nt panel protective cover by grasping
the transverse tabs on each side and pull them outward.
Front Panel Protective Cover
Transverse Tab
Figure 1-3 To Remove the Protective Cover
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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. Unfold or fold the supporting legs in the direc tions of the arrows as
shown in the figures below.
Supporting Legs
Figure 1-4 To Adjust the Supporting Legs
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RIGOL Chapter 1 Quick Start
To Connect to Power Supply
This oscilloscope accepts two kinds of AC power supplies: 100-127 V, 45-440 Hz and
100-240 V, 45-65 Hz. Please use the power cord supplied with the accessories to
connect the oscilloscope to the AC power source via the power socket as shown in
the fi g ure below. T urn on the power switch. At this point, the oscilloscope is
energized and the power key
breathing state.
Figure 1-5 To Conne ct to Power Supply
at the lower-left side of the front panel is in
Power Socket
Power Swi t ch
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Chapter 1 Quick Start RIGOL
Power-on Inspection
When the oscilloscope is energized, press the power key
of the front panel to start the oscilloscope. During the start-up process , th e
oscilloscope perfor ms a se ries of se lf -test items and you can hear the sounds of relay
switching. After the self-test is finished, the welcome screen is displayed. If your
instrument is installed with the trial versions of the options, the “Current Options”
dialog box will be displa yed and y ou can view the names, ve rsions and the remaining
time of the options currently installed. The instrument is installed with the trial
versions of the options when it leaces factory and the remaining time is about 2000
minutes. You can press Utility System SelfTestInfo to view the self-test
results.
at the lower-left side
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RIGOL Chapter 1 Quick Start
Model
Description
To Connect the Probe
RIGOL provides passiv e and active probe s fo r DS4 000 as well as passive, active and
logic probes for MSO4000. For detailed technical information of the probes, please
refer to the corresponding Probe User’s Guide. The probes recommended for this
oscilloscope are as shown in the table below.
RP3500A 500 MHz, passive probe, standard, auto detection
RP7150 1.5 GHz, active probe, optional, auto detection
RPL2316 Logic probe, standard (only for MSO4000 series)
Besides, MSO4000/DS4000 se ries oscillos cope als o s upports TekProbe-BNC 2 degree
probes (with RIGOL T2R1000 interface adaptor, option) of Tektronix.
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Chapter 1 Quick Start RIGOL
To Connect the Passive Probe
1. Connect the BNC terminal of the probe to the analog channel input terminal o r
external trigger input connector of the oscilloscope at the front panel (please
refer to “Front Panel Overview”).
Figure 1-6 To Connect the Passive Probe
2. Connect the ground alligator clip or ground spring of the probe to the circuit
ground terminal and connect the probe tip to the circuit po int to be tested.
After connecting the passive probe, you need to perform probe function inspection
and probe compensation before making measurements. For the detailed steps, refer
to “Passive Probe Function Inspection&Compensation Adjustment”.
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To Connect the Active Probe
Take RP7150 (with differential probe front) as an example.
1. Connect the probe front with the active probe amplif ier.
2. Connect the othe r e nd of the active probe amplifier to the analog channel input
terminal or external trigge r input connecto r of the os cilloscope at the front pane l
(please refer to “Front Panel Overview”). Note that you need to push the
probe to the due position to lock it firmly.
Figure 1-7 To Connect the Act i ve Probe
3. Connect the probe front to the circ uit under test using the probe auxiliary
equipment.
After connecting the active probe, you can perform probe calibration and offset
voltage adjustment. For the detailed steps, refer to “Active Probe”.
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To Connect the Logic Probe
1. Connect the single-wire end of the logic probe to the digital channel input
terminal [LOGIC D0-D15] at the front panel of MSO4000 series digital
oscilloscope in the correct direction.
2. Connect the other end of the logic probe to the sig nal under test. RPL2316
provides three signal under test connection methods to meet the requirements of
different application env ironment. For the details, refer to
User’s Guide
.
RPL2316 Logic Probe
Note: Before connecting the log ic probe to the device under test, connect the
logic probe adaptors provided in the accessories to the corresponding channel
groups.
Figure 1-8 To Connect the Logic Probe
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RIGOL Chapter 1 Quick Start
To Connect the Tek Probe
1. Connect the Tek probe to one end of T2R1000 adaptor correct l y.
2. Connect the other end of T2R1000 adaptor to the a nalog channel input termi nal
or external tr igger input connector (refer to “Front Panel Overview”) of
MSO4000/DS4000 series oscilloscope at the front panel correctly.
T2R1000
Tektronix Probe
3. Connect the ground terminal of Tek probe to the ground terminal of the circuit.
Connect the probe tip of Tek probe to the test point of the circuit under test.
For the specified model of Tek probe, you can perform probe calibration and offset
voltage adjustment after the probe is connected. For the details, refer to “Tek
Probe”.
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Passive Probe Function Inspection&Compensation Adjustment
After connecting the passive probe, you need to perform probe function inspection
and probe compensation b efore making measurements.
Function Inspection
You need to perform probe function inspection according to the steps below before
making measurements using the passive probe.
1. Press Default OK to restore the oscilloscope to the factory setting.
2. Connect the ground alligat or clip of the probe to t he “Ground Terminal” as shown
in Figure 1-9.
3. Use the probe to connec t the input terminal of CH1 of the oscilloscope and the
“Compensation Signal Output Terminal” of the probe as shown in Figure 1-9.
Compensation Signal Output Terminal
Ground Terminal
Figure 1-9 To Use the Compensation Signal
4. Press AUTO.
5. Observe the wavef orm on the dis play. In normal condition, the display s hould be
a square wavefor m as shown in the figure below. If the sq uare wavefo r m
actually shown does not match that in the figure below, please perform “Probe
Compensation” in the next section.
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o avoid electric shock, pl ease make su re that t he insulated wi re of the
Tip
Figure 1-10 Probe Compensation Signal (Square Waveform)
6. Use the same method to test the other channels.
WARNING
T
probe is in good cond ition and do not touch the metallic part of the
probe when the probe is connected to a high voltage source.
The probe compensation signal can only be used for p robe compensation
adjustment and cannot be used for calibration.
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Probe Compensation
When the probes are used for the first time or when the probe compensatio n s igna l
does not match that shown in Figure 1-10 (refer to “Function Inspection”), you
should compensate the pro b es to match the input channels of the o scilloscope.
Non-compensated or poorly compensated probes may cause measurement error.
The probe compensation procedures are as follows.
1. Perform steps 1, 2 , 3 and 4 of “Function Inspection” in the previous section.
2. Check the waveform displayed on the oscilloscope and compare it with the
waveforms shown in the figure below.
Over compensated Perfectly compensated Under compensated
Figure 1-11 Probe Compensation
3. Use a nonmetallic driver to adj ust the low-frequency compensation adjustment
hole on the probe until the waveform displayed is as t he “Perfectly compensated”
in the figure above.
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Front Panel Overview
1 2 3 4 5 6 7 8 9 10
11
12
13 14 15 16 17 18 19 20 21 22
Figure 1-12 Front Panel Overview
Table 1-1 Front Panel Description
No. Description No. Description
1 29 Parameters Measurement Menu
Softkeys
2 LCD 13 Power Key
3 Multi-function Knob 14 USB HOST
4 Navigation Knob 15 Digital Channel Input Terminal
5 HORIZONTAL 16 Function Setting Menu Softkeys
6 CLEAR 17 VERTICAL
7 AUTO 18 Analog Channel Input Terminals
8 RUN/STOP 19 Function Keys
9 SINGLE 20 TRIGGER
10 Default and Print 21 EXT TRIG Input Terminal
11 LOGIC ANALYZER
[1]
Note
: Only applicable to MSO4000 mixed signal oscilloscope.
[1]
22 Probe Compensation Signal Output
12 Record
Terminal and Ground Terminal
[1]
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Chapter 1 Quick Start RIGOL
Rear Panel Overview
1 2 3 4 5 6 7 8
Figure 1-13 Rear Panel Overview
1. Trig Out/Calibration
Various kinds of signals can be output from this connector (press Utility
AuxOutput to select the desired output type).
1) TrigOut: the oscilloscope outputs a sig nal that can reflect the current
capture rate of the instrument each time a trigger is generated. 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.
2) Fast: the oscilloscope outputs a fast edge signal with 500 ps rise time from
this connector and the signal can be used in the self-calibration of the
oscilloscope.
3) GND: the oscilloscope outputs a ground level from this connector.
4) PassFail: the oscilloscope outputs a TTL high level when a failed waveform
is detected until the current fra me of w a vef orm is finished and then outputs
a low level at the beginning of the next frame of waveform. This signal can
be transmitted to other contro l sys tem for easy view of the test result.
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2. Reference Clock
A more precise sample clock signal can be provided for the oscilloscope with the
reference clock. It can also be used to synchronize the clocks of two or more
oscilloscopes.
3. Video Output
Through this interface, t he os cillosco pe can be connected to an external monitor
for clearer waveform display. At this point, the display o f the oscilloscope is still
operational.
4. LAN
Through this interface, the oscilloscope can be connected to the local area
network for remote control. This osc illoscope conforms to LXI-C standard and
can quickly bu ild test system with other devices.
5. USB DEVICE
Through this interface , the oscillos cope can be conne cted to PictBridge printer to
perform the print operation or PC to control the oscillosc ope remotely.
6. USB HOST
You can connect a USB storage dev ice via this interface to perform external
storage and recall. You can also extend a GPIB interface via this interface using
the USB-GPIB interface converter (optional) provided by RIGOL to realize GPIB
communication.
Note: There is also a USB HOST interface at the front panel.
7. Lock Hole
Use a security lock (available separately) to lock the oscilloscope to a f ixed
location via this lock hole.
8. AC Power Socket/Power Switch
AC power input terminal. This oscilloscope accepts two kinds of AC power
supplies: 100-127 V, 45-440 Hz and 100-240 V, 45-65 Hz. For the power
connection method, refer to “To Connect to Power Supply”.
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Front Panel Function Overview
VERTICAL
MSO4000/DS4000 provid es an independent vertical control system for each analog
input channel.
CH1, CH2, CH3, CH4: analog input channel switches.
The four channels are marked by different colors which are also used to mark
the corresponding waveforms on the screen and the channel input connectors.
Press any key to turn on the correspondin g channel and open the corresponding
channel menu; press again to turn off the channel.
VERTICAL
Turn the knob to modify the ver tical position of the corresponding channel
waveform. During the mo dification, the wavefo rm of the co rresponding chann el
moves up and down; the vertical position information (as shown in the figure
below) pops up at the lower-left side of the screen in real-time. Pressing down
the knob can quickly reset the vertical position (zero).
POSITION: channel vertical position knobs.
VERTICAL
Turn the knob to modify the ver tical scale of the corresponding channel
waveform. During the modification, the waveform of the corresponding channe l
is expanded or compressed vertically (the actual amplitude keeps unchaged);
the vertical scale information (as shown in the figure below) at the bottom of the
MSO4000/DS4000 User’s Guide 1-19
SCALE: channel vertical scale knobs.
RIGOL Chapter 1 Quick Start
screen changes accordingly. Pressing down the knob can quickly switch the
vertical scale adjustment mode between “Coarse ” and “Fine”.
MATH: press this key to open the math operation function menu. You can
perform addition, subtraction, multiplication, division, FFT, digital filter, logic
operations and advanced operations.
REF: press this key to enable the reference waveform function. You can
compare the waveform actually measured with the reference waveform.
Decode1, Decode2: press any key to open the corresponding decoding
function menu.
MSO4000/DS4000 supports parallel decoding and various protocol decodings
(for more details, refer to “Protocol Decoding”).
HORIZONTAL
MENU: press this key to open the horizonta l cont r o l menu. You can turn on or
off the delayed sweep, switch between different horizontal time base modes,
switch between “Coarse” and “Fine” adjustments of the horizontal time base as
well as modify the horizontal reference setting.
HORIZONTAL SCALE: horizontal scale knob .
Turn the knob to modify the horizontal time base. During the modification, the
waveforms displayed are expan ded or compressed horizontally; the horizontal
time base message (as shown in the figure below) at the upper-left side o f the
screen changes accordingly. Pressing down the knob can quickly turn on or off
the delayed sweep.
When delayed sweep is turned on, turning the knob can modify the delayed
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Chapter 1 Quick Start RIGOL
sweep time base. During the modification, the delayed sweep waveform is
expanded or com p re s s ed horizontally; the delayed sweep time base message
(as shown in the figure below) at the middle of the screen changes accordingly.
HORIZONTAL
POSITION: horizontal position knob.
Turn the knob to modify the horizontal position (namely the trigger position).
During the modification, the trigger point and the waveforms displayed move
left or right; the horizontal position message (as shown in the figure below) at
the upper -right side of the screen changes accordingly. Pressing down the knob
can quickly reset the horizontal position (zero).
When delayed sweep is turned on, turning the knob can modify t he delayed
sweep horizontal position. During the modification, the delayed sweep trigger
point and waveform move left or right; the delayed sweep horizontal position
message (as shown in the figure above) at the upper-right side of the screen
changes accordingly.
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TRIGGER
MODE: press this key to switch the trigger mode to “Auto”,
“Normal” or “Single” and the corresponding status backlight
of the current trigger mode would be illuminated.
TRIGGER
Turn the knob to modify the trigger level. Duri ng the
modification, the trigger level line moves up and down; the
trigger level message (as shown in the figure below) pops up
at the lower-left side of the screen in real-time. Pressing
down the k nob can quickly reset the trigger level to 0.
MENU: press this key to open the trigger operation menu.
This oscilloscope provides various trigger types.
FORCE: in Normal and Single trigger modes, press this key
to generate a trigger signal forcibly.
50%: press this key to set the trigger level to the vertical
midpoint of the trigger signal amplitude.
LEVEL: trigger level knob.
CLEAR
1-22 MSO4000/DS4000 User’s Guide
Press this key to clea r all the w a vef orms on the s creen. If the
oscilloscope is in “RUN” state, new waveforms w ill be
displayed.
Chapter 1 Quick Start RIGOL
AUTO
Press this key to enable the waveform auto setting function.
The oscilloscope will automatically adj ust the vertical scale,
horizontal time base, trigger mode and so on according to the
input signal to realize op timum waveform display. Besides,
the quick parameter measurement function is also provided
(for more details, refer to “Quick Measurement after
AUTO”).
Note: The waveform auto setting function requires that the
frequency of sine should be no lower than 20 Hz. If the
parameter exceeds this limit, the waveform auto setting
function might be invalid.
RUN/STOP
Press this key to set the state of the oscilloscope to “RUN” or
“STOP”. In “RUN” state, the key is illuminated in yello w and
red in “STOP” state.
SINGLE
Press this key to se t the trigger mode t o “Single”. In single
trigger mode, the oscilloscope generates a trigger when the
trigger conditions are met and then stops. When the
oscilloscope is in wait-for-trigger state (the key is illuminated
in orange), pressing FORCE will generate a trigger signal
immediately.
MSO4000/DS4000 User’s Guide 1-23
RIGOL Chapter 1 Quick Start
Multi-function Knob
This knob can be used to select parameter item, adjust the
value of the parameter and etc.
In menu operation, this knob can be used to open the
submenu or select the desired parameter item. For
menu item that include multiple parameter items, you
can press the corresponding menu softkey and then
turn the knob to select the specified parameter item
(sometimes, you need to press down the knob to select
the parameter item). This knob can also be used to
modify the parameter, input fielname and etc.
In non-menu operation (the menu is hidden), turning
the knob can adjust th e waveform brightness. The
adjustable range is from 0% to 100%. Turn the k nob
clockwise to increase the waveform brightness and
counterclockwise to decrease the waveform brightness.
Pressing down the knob can quickly reset the wa vefor m
brightness to 50%. You can also press Display
WaveIntensity and then turn the knob to adjust the
waveform brightness.
Navigation Knob
This knob provides quick adjust/loc a te function for
numerical parameters wit h relativel y la rger settable ranges.
Turn the knob clockwise to increase the value and
counterclockwise to decrease the value. The inner knob is
used for fine adjustment and the outer kno b for coar s e
adjustment (the larger the rotation amplitude of the outer
knob is, the faster the change speed of the value will be).
For example, this k nob can be used to quickly locate the
waveform frame (Current Frame) to be played back in
waveform playback. Similar parameters inc l ude trigger
holdoff, pulse width setting, slope time and etc.
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Chapter 1 Quick Start RIGOL
this key to ex e cute t he print fu ncti on o r sa v e t he s creen
Default
Press this key and then press OK to restore the oscilloscope
to its factory setting (please refer to
Press
content in a USB storage device as a picture file. If the
oscilloscope is currently connected to a PictBridge printer and
the printer is in idle state, pressing this key will execute the
print function. If no printer but a USB storage device is
currently connected, pressing this key will save the screen
content to the USB storage device in the specified picture
format (press Storage Storage and select “Picture”;
press Pic Type and select “*.bmp”, “*.png” , “*.jpeg” or “tiff”;
the default is “png”). When PictBridge printer and USB
storage device are connected at the same time, the PictBridge
printer enjoys higher priority.
Table 13-2).
MSO4000/DS4000 User’s Guide 1-25
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Function Keys
Measure: press this key to enter the measurement setting menu. You can set
the signal source, perform all measu rement, turn on the statistic function, make
measurement settings and so on.
Acquire: press this key to enter the sample setting menu. You can set the
acquisition mode, memory depth and anti-aliasing function of the oscilloscope.
Storage: press this key to enter the file store and recall interfac e. This
instrument supports internal/external storage as well as disk management.
Cursor: press this key to enter the cursor measurement menu. The oscilloscope
provides four cursor modes (manual, track, auto and X-Y).
Note: The X-Y cursor mode is only available when the horizontal time b ase
mode is X-Y.
Display: press this key to enter the display setting menu. You can set the
waveform display type, persistence time, waveform intensity, screen grid type,
grid brightnes s and menu di s pl ay time.
Utility: press this key to enter the system auxiliary function setting menu. You
can set the system-related functions and parameters, such as the I/O setting,
sound and language. The osc illoscope also supports some advanced func tions,
such as the pass/fail test and print setting.
Record: press this key to enter the waveform recording menu. You can select
the desired wa veform recording mode and set the related parameters.
Help: press this key to open the help interface. For the detailed information,
please refer to the introduction in “To Use the Built-in Help System”.
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Stop Play/Pause Record
Record
Record: press this key to start recording the waveform. The backlight is
illuminated in red and flashes. Besides, the backlight will also be illuminated in
red and flashes when the open mode (record constant on) is enabled until you
press RUN/STOP to stop the waveform recording.
Stop: press this key to stop the waveform recording or waveform playback. The
backlight is illuminated in orange . Besides, the backlight will also be illuminated
in orange when the waveform r ecording or waveform playback finishes.
Play/Pause: when the waveform recording is stopped or when the waveform
palyback is s t opped or paused, pressing this key to start playing back the
waveform; the backlight is illuminated in yellow and flashes. Pressing this key
again to pause the playback; the backlight is illuminated in yellow.
MSO4000/DS4000 User’s Guide 1-27
RIGOL Chapter 1 Quick Start
LOGIC ANALYZER
LA: press this key to open the logic analyzer set ting menu.
You can ena ble or disable any digital channel or channel
group, change the display size of the digital channel
waveform, modify the logic threshold of the digital channel,
group the digital channels and display the digital channels
as a bus. You can also set a label for each digital channel.
LA : this knob can be used to reposition the digital
channels. Press this knob continuously to switch the digital
channels currently enabled as the channel cu r rently
selected (highlighted in red) according to the numbers of
the digital channels (from small to large). Then, turn the
knob to move the digital channel currently selec ted to the
desired position; press down this knob to fix this channel at
the current position and select the next digital channel.
Note: The logic analyzer is only applicable to MSO4000 series
oscilloscope.
1-28 MSO4000/DS4000 User’s Guide
Chapter 1 Quick Start RIGOL
User Interface
The user interface of MSO4000/DS4000 series oscilloscope is as shown in Figure
1-14 and Table 1-2.
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18
Figure 1-14 User Interface
MSO4000/DS4000 User’s Guide 1-29
RIGOL Chapter 1 Quick Start
Table 1-2 User Interface Overview
No. Name No. Name
1 Auto Measurement Items 10 Trigger Setting
2 Analog Channel Label and
11 CH1 Status Label
Waveform
3 Digital Channel Label and
12 CH2 Status Label
Waveform
4 Status 13 CH3 Status Label
5 Horizontal Time Base 14 CH4 Status Label
6 Sample Rate and Memory Depth 15 Message Box
7 Waveform Memory 16 Digital Channel Status Area
8 Trigger Position 17 Notification Area
9 Horizontal Position 18 Function Setting Menu
Tip:
Table 1-2 is the user interface overview table. You can clic k the number or name to
quickly move to the corresponding content.
In the following part, detailed introductions ar e provided on the user interface
accoding to the numbering sequence in Figure 1-14.
1. Auto Measurement Items
Provide 16 horizontal (HORIZONTAL) and 13 vertical (VERTICA L) meas urement
parameters.
Pressing MENU at the left of the screen can unfold t he horizontal measurement
menu or the vertical measurement menu or fold the measurement menu. When
the measurement menu is unfol ded, pressin g the me asurement menu softkey at
the left of the screen can activate the auto measurement function of the
corresponding parameter.
Note: When the measurement menu is unfolded, the following labels may be
displayed in the grid at the lower-left side of the screen.
Denote that the current menu includes multiple pages. You can press
(the page down key) at the left of the screen to open the next page
of menu.
Denote that the current menu includes multiple pages. You can press
(the page up key) at the left of the screen to open the previous page
of menu.
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Chapter 1 Quick Start RIGOL
Wavef orm in the Memory
2. Analog Channel Label and Waveform
Different channels are marked in different colors. The channel label and
wavef orm are marked in the same color as the analog channel.
3. Digita l Ch an n el Label and Waveform
The logic high levels of the digital channel waveforms are dis pla y e d in blue; the
logic low levels are displayed in green which complies with the color of the
digital channel label and the edges are displayed in white. The label and
waveform of the digital channel currently selected are both d isplayed in red.
Note: Only applicable to MSO4000 series oscilloscope.
4. Status
Available statuses include RUN, STOP, T’D (triggered), WAIT and AUTO.
5. Horizontal Time Base
Represen t the tim e per grid on the horizontal axis on the screen.
Use HORIZONTAL
SCALE to modify this parameter. For different
models, the adjustable ranges of the horizontal time base are different
(please refer to
Table 3-1).
6. Sample Rate and Memory Depth
Display the current sample rate and memor y depth of the a nalo g c ha nnels.
Modifying the horizontal time base (use HORIZONTAL SCALE) might
modify the s ample rate and/or memory depth indirectly. You are not
allowed to modify the sampler rate directly.
7. Waveform Memory
Provide t he schematic diagram of the memory position of the waveform
currently on the screen in the memory.
Waveform on the Screen
8. Trigger Position
Display the trigger positions of the waveform in the waveform memory and on
MSO4000/DS4000 User’s Guide 1-31
RIGOL Chapter 1 Quick Start
the screen.
9. Horizontal Position
Use HORIZONTAL
POSITION to modify this parameter. Pressing down
the knob can quickly reset the horizontal position (zero).
10. Trigger Setting
The trigger setting information inc ludes trigger type, trigger source and trigger
level/threshold level (may also include trigger level label).
Trigger Type
Display the t ri gge r t ype currently selected and the trigger c ondition set ting .
Different label is displayed when different trigger type is selected. For
example,
represents triggering on the rising edge in “Edge Trigger”.
Trigger Source
Display the trigger sour c e (CH1 to CH4, EXT, EXT/5, AC Line or D0-D15)
currently selected. Different label is displayed when diff eren t tri g ger s ou rc e
is selected and the color of the par ameters in the trigger set ting inf ormation
corresponds to the trigger source currently selected. For examp le,
denotes that CH1 is selected as the trigger source.
Trigger Level/Threshold Level
― When the trigger source is CH1 to CH4, the trigger level value is
displayed and the trigger level label
is displayed at the right of the
screen.
Note: For runt trigger and slope trigger, you need to set the trigger
level upper limit and trigger level lower limit. The difference between
the current upper limit and lower limit of the trigger l evel is displayed in
the trigger setting inf ormation and two trigger level labels (
and )
are displayed at the right of the screen.
― When the trigger source is EXT o r EXT/5, the trigger level value is
displayed and there is no trigger level label.
― When the trigger source is AC line, there is no trigger level.
― When the trigger source is D0-D15, the threshold level is displayed.
― You can use TRIGGER
LEVEL to adjsut the trigger le vel/threshold
level.
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Chapter 1 Quick Start RIGOL
11. CH1 Status Label
Display the on/off status of CH1. When it is on, the status label is
highlighted.
Display the vertical scale o f CH1 (namely the voltage value per grid of the
CH1 waveform in the vertical direction). You can use VIRTICAL
SCALE
under CH1 to modify this parameter.
Different labels may be displayed according to the current channel setting.
For ex ampl e,
Specify the Channel Coupling”) is AC;
is displayed when the channel coupling (refer to “To
is displayed when the
bandwidth limit (refer to “To S pecify the Bandwidth Limit”) is enabled;
is displayed when the input impedance (refer to “To Specify the Input
Impedance”) is 50 Ω.
12. CH2 Status Label
Display the on/off status of CH2. When it is on, the status label is
highlighted.
Display the vertical scale o f CH2 (namely the voltage value per grid of th e
CH2 waveform i n the vertical di rection). You can use VIRTICAL
SCALE
under CH2 to modify this parameter.
Different labels may be displayed according to the current channel setting.
For ex ampl e,
Specify the Channel Coupling”) is AC;
is displayed when the channel coupling (refer to “To
is displayed when the
bandwidth limit (refer to “To S pecify the Bandwidth Limit”) is enabled;
is displayed when the inp ut impedance (refer to “To Specify the Input
Impedance”) is 50 Ω.
13. CH3 Status Label
Display the on/off status of CH3. When it is on, the status label is
highlighted.
Display the vertical scale o f CH3 (namely the voltage value per grid of th e
CH3 waveform i n the vertical direction) . You can use VIRTICAL
SCALE
under CH3 to modify this parameter.
Different labels may be displayed according to the current channel setting.
For ex ampl e,
Specify the Channel Coupling”) is AC;
is displayed when the channel coupling (refer to “To
is displayed when the
bandwidth limit (refer to “To S pecify the Bandwidth Limit”) is enabled;
is displayed when the i nput impe dance (refer to “To Specify the Input
Impedance”) is 50 Ω.
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RIGOL Chapter 1 Quick Start
14. CH4 Status Label
Display the on/off status of CH4. When it is on, the status label is
highlighted.
Display the vertical scale o f CH4 (namely the voltage value per grid of th e
CH4 waveform i n the vertical direction) . You can use VIRTICAL
SCALE
under CH4 to modify this parameter.
Different labels may be displayed according to the current channel setting.
For ex ampl e,
Specify the Channel Coupling”) is AC;
is displayed when the channel coupling (refer to “To
is displayed when the
bandwidth limit (refer to “To S pecify the Bandwidth Limit”) is enabled;
is displayed when the input im pedance (refer to “To Specify the Input
Impedance”) is 50 Ω.
15. M essa ge Box
Display the prompt messages.
16. Digital Channel Sta tu s A r e a
Display the current on/off statuses of the 16 digital channels (D15 to D0 from
left to right). The active digital channel is highlighted in red and the other digital
channels currently turned on are displayed in green. The digital channels turned
off are displayed in gr ay.
Note: This function is only applicable to MSO4000 series oscilloscope.
17. Noti fi cation Area
Display the system time, sound icon, USB storage device icon and PictBridge
printer icon.
System Time: displayed in “hh:mm (hour :minute)” format. When printing
or storing the waveform, the output file will contain this time information.
Press Utility System System Ti me System Time to set the
system time in the following fo rmat.
yyyy-mm-dd hh:mm:ss (year-month-date hour:minute:second)
Sound Icon: when beeper is turned on,
is displayed. Press Utility
Sound to turn the beeper on or off.
USB Storage Device Icon: when the oscilloscope detects a USB storage
device, is displayed.
PictBridge Printer Icon: when the oscilloscope is correctly connected to a
1-34 MSO4000/DS4000 User’s Guide
Chapter 1 Quick Start RIGOL
PictBridge printer, is display ed.
18. Function Setting Menu
Press MENU at the right of the screen continuously to unfold or fold the
function setting menu. When the function setting menu is unfolded, press any
softkey to activate the corresponding menu item (for menu items that include
submenus or multiple parameter items, the submenus or parameter items will
also be opened).
The following symbols might be displa y e d in the m enu item or parameter item:
Denote that you can turn the multi-function knob
to select the
specified parameter item. The backlight of the multi-function knob
is illuminated when the parameter selection is valid.
Denote that you can turn the multi-function knob to modify the
parameter value. The backlight of the multi-function knob
is
illuminated when the parameter input is valid .
Denote that you can use the navigation knob to quickly adjust/locate
parameters. Turn the knob clockwise to increase the value and
counterclockwise to decrease the value. The inner knob is used for
fine adjustment and the outer knob for coarse adjustment (the
larger the rotation amplitude of the outer knob is, the faster the
variation of the value will be).
Denote that you can turn the multi-function knob
to select the
desired parameter and then pr ess down the multi-function knob
to choose this parameter item.
Denote that the current menu item has several parameter items.
Denote that the current menu has a submenu.
Press this key to return to the previous menu.
Besides, the following direction keys might appear in the grid at the lower-right
side of the screen when the func tion setting menu is unfolded.
Denote that the current menu include several pages. You can press
(the page down key) at the right of t he s c reen to open the next
page of menu.
Denote that the current menu include several pages. You can press
(the page up key) at the right of the screen to open the previous
page of menu.
MSO4000/DS4000 User’s Guide 1-35
RIGOL Chapter 1 Quick Start
To Use the Security Lock
If needed, you can use a security lock (available separately) to lock the oscilloscope
to a fixed location. The method is as follows. Align the lock with the lock hole and
plug it straight into the lock h ole, t urn the key clo ckw ise t o lock the oscilloscope and
then pull the key out.
Figure 1-15 To Use the Security Lock
Note: Do not insert other artic les into the security lock hole.
Security Lock Hole
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Chapter 1 Quick Start RIGOL
To Use the Built-in Help System
The help system of this oscilloscope provides help information for all the keys and
menu softkeys at the front panel. Press Help to open the help interface and press
again to close the interface. The help interface mainly consists of two parts. The left
is “Help Options” and you can use “Button” or “Index” mode. The right is “Help
Display Area” which display s the corresponding help infor mation.
Help Options Help Display Area
Figure 1-16 Help Information
Button:
Default mode. In this mode, you can press the keys or menu softkeys (except the
power k ey
at the front panel directly or turn the multi-function knob
key name (the item currently selected is displayed with brown shading) in the “Help
Options” area and then press down the knob to get the corresponding help
information in the “Help Display Area”.
Besides, you can turn the multifunction knob
turn the navigation knob to quickly select “WaveSearch” to acquire the help
information of the navigation knob . Y ou can use the multi-function knob
MSO4000/DS4000 User’s Guide 1-37
, the multi-funct i on knob and menu pa ge u p/down key / )
and select the desired
to select “WaveSearch” or directly
to select
RIGOL Chapter 1 Quick Start
“To Index” and then press down the kn ob t o switch to Index mode.
Index:
In this mode, you can turn the multi-function knob
to select the desired item
(the item currently selected is displayed with brown shading) in the “Help Optio ns”
area and press down the knob to get the co rresponding hel p informatio n in the “Help
Display Area”. You can use the multi-function knob
to select “To Bu tt on” and
then press down the knob to switch to Button mode.
1-38 MSO4000/DS4000 User’s Guide
Chapter 2 Vertical System Setting RIGOL
Chapter 2 Vertical System Setting
MSO4000/DS4000 provides four analog input channels (CH1 to CH4) and provides
independent vertical control system for each channel. As the vertical system setting
methods of the f our chann els a re completely the sa me, t his chapte r takes CH1 as an
example to illustrate the setting method of the vertical system.
The contents of this chapter:
To Turn the Analog Channel On/Off
To Adjust the Vertical Scale
To Adjust the Vertical Position
To Specify the Channel Coupling
To Specify the Bandwidth Limit
To Set the Probe
To Specify the In pu t Impedance
To Turn Waveform Invert On/Off
To Specify the Vertical Reference
To Specify the Amplitude Unit
To Set the Channel Label
To Set the Delay Calibration
MSO4000/DS4000 User’s Guide 2-1
RIGOL Chapter 2 Vertical System Setting
To Turn the Analog Channel On/Off
Connect a signal to the ch annel connect or of CH 1 and the n p ress CH1 in the v ertical
control area (VER TICAL) a t the f ront panel to turn CH1 on or off . When it is turned on,
the backlight of CH1 is illuminated; the channel setting menu is displayed at the
right of the screen and the channel status label ( as shown in the figure below) at the
bottom of the screen is highlighted.
Tips
The on/off of the backlights of the characters (“AC”, “50” and “BW”) under
CH1 and the information displayed in the channel status label are related to
the current channel setting. For the details, refer to “To Specify the
Channel Coupling”, “To Specify the Input Impedance” and “To
Specify the Bandwidth Limit”.
The on/off o f t he backlights of the characters (“AC”, “50” and “BW”) is only
related to the current cha nnel set ting; the on/of f st ate of the channe l has not
any effect on it.
After the channel is turned on, modify the parameters such as the vertical scale,
horizontal time base and trigger mode according to the input signal to make the
waveform d i splayed easy to observe and measure.
2-2 MSO4000/DS4000 User’s Guide
Chapter 2 Vertical System Setting RIGOL
To Adjust the Vertical Scale
The vertical scale refers to the voltage value per grid on the vertical direction on the
screen and is usually e xpressed as V/div. The adjustable range of the vertical scale is
related to the current pr obe ratio an d in put i mpedance. By default, the probe ratio is
1X, the input impedance is 1 MΩ and the adjustable range of the vertical scale is from
1 mV/div to 5 V/div.
Press CH1 and its backlight is illuminated; then, press Volts/Div to switch the
vertical scale adjustment m ode of CH1 between “Coarse” and “Fine” (the default is
“Coarse”). You can also press VERTICAL
quickly switch the current adjustment mode.
When “Coarse” is selected, tur ning VERTICAL SCALE will adjust the
vertical scale within the adjusta ble range at 1-2-5 step sequence. Turn the knob
clockwise to reduce the vertical scale and counterclockwise to increase the
vertical scale.
When “Fine” is selected, turning VERTICAL SCALE will further adjust the
vertical scale within the ad j ustable range at a smal ler step to impr ove th e
vertical resolution. Turn the knob clockwise to reduce the vertical scale and
counterclockwise to increase the vertical scale.
SCALE corresponding to CH1 to
If the amplitude of the input wave fo rm is a lit tle bit g reater t han t he f ull s cale o f
the current scale and the amplitude w ould be a little bit lower if the next s cale is
used, fine adjustment can be used to improve the waveform display amplitude
to view signal details.
When modifying the vertical scale, the waveform of the corresponding channel will
be expanded or compressed vertical ly relative to the vertical referenc e currently
selected (refer to “To Specify the Vertical Reference”); the vertical scale
information (as shown in the figure below) in the channel status label at the bottom
of the screen will change in real time.
MSO4000/DS4000 User’s Guide 2-3
RIGOL Chapter 2 Vertical System Setting
To Adjust the Vertical Position
The vertical position refers to the position of the ground level of the waveform
relative to the screen center in the vertical direction. The adjustable range of the
vertical position is related to the current input impedance, prob e ratio and vertical
scale (refer to "Specifications"). The unit is the same as the amplitude unit
currently selected (refer to "To Specify the Amplitude Unit").
Press CH1 and its backlight is illuminated; then, turn VERTICAL
corresponding to CH1 to adjust the vertical position of the channel waveform within
the adjustable range.
T urn the k nob clockwise to increase the vertical p osition and counterclockwise to
reduce the vertical position.
Press this knob to quickly reset the vertical position to 0.
When modifying the vertical position, the waveform of the corresponding cha nnel
moves up and down; the vertical position information (as shown in the figure below)
pops up at the lower -left side of t he screen in real-time.
POSITION
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Chapter 2 Vertical System Setting RIGOL
To Specify the Channel Coupling
Set the coupling mode to filter out t he undesired signals. Fo r examp le, the signal
under test is a square waveform with DC offset.
When the coupling mode is “DC”, the DC and AC com ponents of the signal unde r
test can both pass the c hannel.
When the coupling mode is “AC”, the DC components of the signal under test ar e
blocked.
When the coupling mode is “GND”, the DC and AC components of the signal
under test are both blocked.
Press CH1 Coupling and turn the multi-function knob to select the desired
coupling mode (the default is DC). You can also press Coupling continuously to
switch the current coupling mode. When different coupling mode is selected,
different coupling label is displayed in the channel status label at the bottom of the
screen, as shown in the figure below. When “AC” coupling mode is selected, the
character “AC” below CH1 is illuminated.
DC AC GND
MSO4000/DS4000 User’s Guide 2-5
RIGOL Chapter 2 Vertical System Setting
To Specify the Bandwidth Limit
Setting the bandwidth limit can reduce display noise. For example, the signal under
test is a pulse with high-frequency oscillations.
When bandwidth limit is disabled, the high frequency components of the signal
under test can pass the channel.
Enable bandwidth limit and lim it the bandwidth to 20 MHz, 100 MHz or 200
[1]
MHz
MHz, 100 MHz or 200 MHz are attenuated.
Press CH1 BW Limit and turn the multi-function knob to select the desired
bandwidth limit state (the default is OFF). You can also press BW Limit continuously
to switch the current state of bandwidth limit. When the bandwidth limit (20 MHz,
100 MHz or 200 MHz) is enabled, the label as sh own in the figure below is dis played
in the channel stat us label at the bott om of t he s creen and the character “BW” under
CH1 is illuminated.
; the high-frequency components of the sig nal under test that exceed 20
[1]
Note
MSO405X/DS405X/MSO403X/DS403X: support 20 MHz, 100 MHz and 200 MHz bandwidth limits.
MSO402X/DS402X: support 20 MHz and 100 MHz bandwidth limits.
MSO401X/DS401X: only support 20 MHz bandwidth limit.
:
2-6 MSO4000/DS4000 User’s Guide
Chapter 2 Vertical System Setting RIGOL
To Set the Probe
The analog channels of this oscilloscope support normal passive probes, active
probes and Te k pro bes (with RIGOL T2R1000 active probe adaptor, option). The
oscilloscope can automatically identify the t ype of the pro be currently connected and
the probe ratio. For the detailed technical information of the probes, please refer to
the correspon di ng probe User’s Guide.
Press CH1 Probe to open the probe submenu. You can view different inf ormation
and perform different operations in the submenu when different type of probe is
connected.
MSO4000/DS4000 User’s Guide 2-7
RIGOL Chapter 2 Vertical System Setting
Passive Probe
1. Probe Type
Probe Type displays “Nor-Probe”; for example, when RIGOL RP3500A probe is
connected.
2. Ratio
For so me normal passive probes, the oscilloscope can identify the probe ratio
automatically. If not, press Ratio and turn the multi-function knob to select
the corresponding probe r atio; or press Ratio contin uously t o switch the curre nt
probe ratio. The probe ratios avail able are listed in
Table 2-1 Pro be Attenuation Coefficient
Probe Ratio
(waveform display amplitude : actual waveform amplitude)
Attenuation Coefficient
0.01X
0.02X
0.05X
0.1X
0.2X
0.5X
1X
2X
5X
10X
20 X
50 X
100 X
200 X
500 X
1000 X
Table 2-1.
0.01:1
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
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Chapter 2 Vertical System Setting RIGOL
Active Probe
1. Probe Type
Probe Type displays “ Active Probe”; for example, when RIGOL RP7150 probe
is connected.
Note: When a 50 Ω active probe is connected, the input impedance of the
channel (refer to “To Specify the Input Impedance”) will be set to “50 Ω”
automatically.
2. Ratio
For active probes, the oscilloscope can identify the probe ratio automatically. If
the probe currently connected supports multiple prob e ratios, press Ratio and
turn the multi-function knob
Ratio continuously to switch the current probe ratio.
3. Front-End
Press Front-End to select the probe front end that matches the probe actually
connected. You can select single-end or differential.
4. Probe-Cal
The oscilloscope provides the calibration function for active probes. This
function uses the fast edge signal output from the [Trig Out/Calibration]
connector at the rear panel of the instrument as the probe calibration signal.
Before perfo rm ing probe calibration , press Utility AuxOutput an d select
“Fast” to conf igure th e [Trig Out/Calibration] connector at the rear panel of
the instrument to output fast edge signal.
The following part introduces how to calibrate the probe via the oscilloscope
(take CH1 as an ex ample) using PCK100 active differential probe calibration kit
by taking RP7150 as a n ex ample. F or the detaile d calibration procedures, please
refer to
RP7000 Series Active Probe User’s Guide
1) Connect RP7150 to CH1 input terminal of the oscilloscope correctly.
2) Press CH1 Probe Probe-Cal to open the probe calibr ation menu . At
this time, the probe calibrati on prompt message is displayed.
3) Connect the calibration board to CH2 input terminal of t he oscilloscope and
the [Trig Out/Calibration] connector at the rear panel respectiv ely using
to select the desired probe ratio; or press
.
MSO4000/DS4000 User’s Guide 2-9
RIGOL Chapter 2 Vertical System Setting
connectors according to the probe calibration prompt message.
4) Adjust the distance between the RP7150 probe tips. Connect the positive
probe tip to the signal at the moddile of the calibration board and connect
the negative probe tip to both sides of the signal line.
5) Press OK and the oscilloscope starts to calibrate the probe.
Note: Please connect the probe calibration signal to the specified channel
according to the probe c alibration prompt message. If the active probe is
connected to CH1, CH3 or CH4, the probe calibration signal should be connected
to CH2 via the clibration board. If the active probe is connected to CH2, the
probe calibration signal should be connected to CH1 via the calibration boar d.
5. Probe Info
Press Probe Info t o v iew information about the probe currently connected,
such as the manufacturer, model, serial number and the date of last calibration.
6. Bias Voltage
The oscilloscope provides the bias voltage adjustment fun ction for active probes.
This function is used to adjust the signal under 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 Voltage and turn the
multi-function k nob
to adjust the DC bias voltage. The range is from -12 V
to +12 V.
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Chapter 2 Vertical System Setting RIGOL
Tek Probe
1. Probe Type
Probe Type displays “Tek Probe” ; for example, when Tek (Tektronix) P6245
probe is connected.
Note: When a Tek probe is used, the oscilloscope sets the channel input
impedance automatically according to the model of the probe actually
connected.
2. Mode
Press Mode and turn the multi-functi on knob to select the probe model
corresponding to the probe actually connected. You can press this softkey
continuously to switch the current probe model. The probe models available
include P6205, P6241, P6243, P6245, P6246, P6247, P6248, P6249, P6250,
P6251, P5205, P5210, P670X, P671X and TCP202.
3. Ratio
Ratio displays the current probe ratio. If the probe currently connected
supports multiple probe ratios, you can use Ratio to select the desi red probe
ratio. The probe ratios available are related to the model of the probe.
4. Front-End
Front-End displays the type of the front end of the probe currently c onnected.
If the probe currently connected is P670X, P671X or TCP202, this menu item is
not provided.
In addition, the oscilloscope supports the probe calibration and bias voltage
adjustment of some Tek probes, including P6241, P6245, P6246, P6247, P6248,
P6249, P6250 and P6251. For these probes, Probe-Cal and Bias Voltage are
provided in the probe submenu .
5. Probe-Cal
Press Probe-Cal and ground the probe input terminal according to the probe
calibration prompt message. Press OK and the oscilloscope starts calibratin g the
probe.
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RIGOL Chapter 2 Vertical System Setting
6. Bias Voltage
Press Bias Voltage and turn the multi-fu nction knob to adjust the DC bias
voltage.
Note: The adjustable range of the DC bias voltage is related to the probe model
and probe ratio (only for models that suppo rts multiple probe ratios). For the
details, please refer to the technical specifications of the corresponding probe.
To Specify the Input Impedance
To reduce the circuit load caused by the interaction between the oscilloscope and the
circuit under test, the oscilloscope provides two input impedance modes: 1 MΩ
(default) and 50 Ω.
1 MΩ: at this point, the input im pedance of the oscilloscope is v ery high an d the
current flows into the oscilloscope from the circuit under test can be ignored.
50 Ω: match the oscilloscope with devices with 50 Ω output impedance.
Press CH1 and its backlight is illuminated; then, press Input to switch the i nput
impedance of the oscilloscope. When “50 Ω” is selected, the label as shown in the
figure below is displayed in the channel status label at the bottom of the screen; at
the same time, the character “50” under CH1 is illuminated.
Note:
After automatically identifying the p robe, the oscilloscope indentif ies the input
impedance automatically and you do not need to set the input impedance
manually.
The input impedance setting will affect the settable ranges of the vertical scale
and vertical offset of the channel. Please refer to “Specifications”.
2-12 MSO4000/DS4000 User’s Guide
Chapter 2 Vertical System Setting RIGOL
To Turn Waveform Invert On/Off
Press CH1 and its backlight is illuminated; then, press Invert to turn on or off
waveform invert (the default is off). When waveform invert is tu rne d off, the
waveform display is normal; when waveform invert is turned on, the waveform
voltage values are inverted (as shown in the figures below).
(a) “Invert” is On
Figure 2-1 Waveform Invert
Note: Turning waveform invert on will change the results of math operations and
waveform measurements.
(b) “Inv ert” is O f f
To Specify the Vertical Reference
The vertical reference refers to the reference position according to which the
waveform of the corresponding channel is expanded or compressed vertically when
using VERTICAL
Press Utility System and press VerticalExp to switch the current vertical
reference (the default is Ground).
Center: when the vertical scale is modified, the waveform of the corresponding
channel will be expanded or compressed relative to the center of the screen.
Ground: when the vertical s cale is m odified, the waveform of the corresponding
channel will be expanded or compressed relative to the ground level.
SCALE to modify the vertical scale of the analog channel.
MSO4000/DS4000 User’s Guide 2-13
RIGOL Chapter 2 Vertical System Setting
To Specify the Amplitude Unit
Select the amplitude displa y unit for the current c hannel. The available units are “W”,
“A”, “V” and “U”. When the unit is changed, the amplitude unit displayed in the
channel status label will change accordingly.
Press CH1 Unit and turn the multi-function knob to selec t the desired
amplitude unit (the default is V).
2-14 MSO4000/DS4000 User’s Guide
Chapter 2 Vertical System Setting RIGOL
To Set the Channel Label
By default, the oscilloscope uses the number of the channel (such as
at the left of the screen) to mark the corresponding analog channel. For easier use,
you can define a label for each analog channel.
The label modification interface is as shown in the figure below.
Name Input Area Keyboard Upper/Lower Case Switch
Name Input Area: display the label characters currently input;
Keyboard: used to input the specified character;
Upper/Lower Case Switch: used to switch between English uppercase and
lowercase inputs. “
A
a” denotes lowercase and “aA” denotes uppercase.
Note: The user-defined label can include uppercase English letters (from A to Z),
lowercase English letters (from a to z), numbers (from 0 to 9), underline and space;
the length of the label cannot exceed 4 charac ters.
For example, change the label of CH1 to “Chn1”.
1. Press CH1 Label to open the lable submenu and the label modification
interface (as shown in the figure above).
If there are characters in the “Name Input Area”, pl ease press Delete
continuously to delete all the characters.
2. Input the first character “C”.
1) If the system is in uppercase input (“
2)
. If the system is in lowercase input (“Aa” is displayed), please press
a
A” is displayed), please move to step
Keyboard to select the “Keyboard” area, turn the multi-function knob
to select “
A
a” and press the knob to swit ch to “aA”.
, displaye d
MSO4000/DS4000 User’s Guide 2-15
RIGOL Chapter 2 Vertical System Setting
2) Press Keyboard to select the “Keyboard” area, turn the multi-function
knob
to select “C” and press the knob to input this chara cter in the
“Name Input Are a ”.
3. Use the same method to input the remaining charac t ers “hn1”. Pay attention to
the cases of the letters during the input process.
4. To modify the characters input, press Name to select the “Name Input Area”,
turn the multi-function knob
to select the character to be modified and then
input the desired character according to the operation method in step 2.
To delete the characters input, press Name to select the “Name Input Area”,
turn the multi-function knob
to select the character to be deleted and then
delete this character by pressing Delete.
Note: When the “Keyboard” area is currently selected, you can also p ress
Delete to delete the character currently at the curso r or the first character at
the left of the cursor (if there is no characte r a t th e cursor).
5. After finishing the input, press OK to complete the label modific ation. The
channel label will change to
.
2-16 MSO4000/DS4000 User’s Guide
Chapter 2 Vertical System Setting RIGOL
To Set the Delay Calibration
When using an oscilloscope for actual measurements, the transmission delay of the
probe cable may bring gre at er er r or (ze ro of f se t). Zero offset is defined as the offset
of the crossing point of the waveform an d tr igger level line relative to the actual
trigger position, as shown in the figure below.
Actual Trigger Position
Trigger Level
MSO4000/DS4000 allows users to set a d elay time to calibrate the zero offset of the
corresponding channel.
Press CH1 Delay-Cal and turn the multi-function knob to adjust the delay
time (the default is 0.00 s) at certain step. The adjustable range is from -100 ns to
100 ns. Pressing the multi-function knob
can quickly reset the delay time to
0.00 s.
Note: The delay calibration time setting is related to the instrument model and the
current horizontal time base. The larger the horizontal time base is, the larger the
setting step will be. Take MSO4054 as an example; when the horizonta l time base is
50 ns, the step is 1 ns; when the horizontal t ime base is 2 μs, the step is 40 ns; when
the horizontal time base is greater than or equal to 10 μs, the delay calibration time
cannot be adjus t ed.
MSO4000/DS4000 User’s Guide 2-17
Chapter 3 Horizontal System Setting RIGOL
Chapter 3 Horizontal System Setting
The contents of this chapter:
To Adjust the Horizontal Time Base
To Adjust the Horizontal Position
To Specify the Time Base Mode
To Turn Delayed Sweep On/Off
To Specify the Horizontal Reference
MSO4000/DS4000 User’s Guide 3-1
RIGOL Chapter 3 Horizontal System Setting
Model
Horizontal Time Base Range
To Adjust the Horizontal Time Base
The horizontal time base (also called horizontal scale) refers to the time value per
grid in the horizontal direction on the screen and is usually expressed as s/div. The
adjustable range of the horizontal time base is related to the instrument model, as
shown in the table below.
Table 3-1 Hori zontal Time Base Range
MSO405X/DS405X 1.000 ns/div to 1.000 ks/ d iv
MSO403X/DS403X 2.000 ns/div to 1.000 ks/di v
MSO402X/DS402X 2.000 ns/div to 1.000 ks/di v
MSO401X/DS401X 5.000 ns/div to 1.000 ks/di v
Press MENU in the horizontal control area (HORIZONTAL) at the front panel and
press ScaleAdjust to switch the horizontal time base adjustment mode to "Coarse"
or "Fine" (the default is coarse).
When “Coarse” is selected, tur ning HORIZONTAL SCALE will adjust the
horizontal time base within the adjustable range at 1-2-5 step s equence. Turn
the knob clockwise to reduce the horizontal time base and counterclockwise to
increase the horizontal time base.
When “Fine” is selected, turning HORIZONTAL SCALE will further adjust
the horizontal time base within the adjustable range at a smaller step. Turn the
knob clockwise to reduce the horizontal time base and counterclockwise to
increase the horizontal time base.
When modifying the horizontal time base, the waveform displayed will be expanded
or compressed horizontally relative to the horizontal reference currently selec ted
(refer to “To Specify the Horizontal Reference”); the time base information (as
shown in the figure below) at the upper-left side of the screen will change
accordingly.
Note: When delayed sweep is turned on, HORIZONTAL
adjust the delayed sweep time base; the delayed sweep time base information (as
shown in the figure below) at the middle of the screen changes accordingly.
3-2 MSO4000/DS4000 User’s Guide
SCALE is used to
Chapter 3 Horizontal System Setting RIGOL
To Adjust the Horizontal Position
The horizontal position (also called trigger posi t ion) refers to the position of th e
trigger point of th e wa veform re lative to the screen ce nter in the h orizonta l dire ction.
The horizontal position is p ositive (negative) when the waveform trigger point is at
the left (right) of the screen center.
Turning HORIZONTAL
channel waveform.
Turn the knob clockwise to reduce the horizontal position and counterclockwise
to increase the horizontal position.
Pressing the knob can quickly reset the horizontal position to 0.
When modifying the horizontal position, the trigger point and the waveforms
displayed move left or right; the horizontal position information (as shown in the
figure below) at the upper-right side of the screen changes accordingly.
POSITION can adjust the horizontal position of the
Note: When delayed sweep is turned on, HORIZONTAL
adjust the delayed sweep horizontal po sition (pressing this knob can quickly reset
the delayed sweep horizontal position); the delayed sweep horizontal position
information (as shown in the figure above) at the upper-right side of th e screen
changes accordingly.
POSITION is used to
MSO4000/DS4000 User’s Guide 3-3
RIGOL Chapter 3 Horizontal System Setting
To Specify the Time Base Mode
Press MENU in the horizontal co ntrol area (HORIZONTAL) at the front panel; then,
press Time Base, turn the multi-function knob to select the desired time base
mode and press the knob. Y ou can also press Time Bas e continuously to switch the
current time base mode. The modes available include Y-T, X -Y and Roll and the
default is Y-T.
Y-T Mode
In this mode, the Y axis represents voltage and the X axis represents time.
Note: Only in this mode can delayed sweep be turned on (refer to “To Turn
Delayed Sweep On/Off”).
Slow Sweep Mode
In “Y-T” time base mode, when the horizontal time base is greater than or equal to
200 ms/div, the instrument enters “Slow Sweep” mode. In “Slow Sweep” mode, the
oscilloscope first samples the data at the left of the trigger point; then, it waits for
trigger and finishes the waveform at the r ight of the trigger point. When the slow
sweep mode is used to observe low-frequency signal, it is recommended that the
“channel couping” is set to “DC” (refer to “To Specify the Channel Coupling”).
Note: Please pay attention to distinguish the slow seep mode from “Roll Mode”.
3-4 MSO4000/DS4000 User’s Guide
Chapter 3 Horizontal System Setting RIGOL
X-Y Mode
In this mode, the X axis and Y axis both represents voltage. The oscilloscope
automatically turns on all the four channels (CH1 to CH4) and the screen is divided
into two cursor areas (XY1 and XY2). In XY1 area (at the left of the screen), the X
axis and Y axis track the voltages of CH1 and CH2 respectively ; in XY2 area (at the
right of the screen), the X axis and Y axis track the voltages of CH3 and CH4
respectively.
The X-Y time base mode can be used to test the phase variation of a signal when it
passes t hrough a circuit network. Connect the oscilloscope with the circuit and
monitor the input and output signals of the circ uit.
Note:
In this mode, the “To Adjust the Horizontal Position”, “To Turn Delayed
Sweep On/Off”, “To Specify the Acquisition Mode”, “Trigger”, “To Make
Math Operation”, “To Make One-key Measurement”, “To Specify the
Measurement Range”, “Logic Analyzer”, “Protocol Decoding”,
“Reference Waveform”, “Pass/Fail Test”, “Waveform Recording” and
“Vectors” are not available.
The “X-Y” cursor mode (refer to “X-Y Mode”) is only available in this time base
mode.
If delayed sweep is currently turned on, when the “X-Y ” mode is turned on, the
delayed sweep will be turned off automatically. When the “Y-T” mode is turned
on again, the delayed sweep will be turned on automatically.
MSO4000/DS4000 User’s Guide 3-5
RIGOL Chapter 3 Horizontal System Setting
B
A
sin =θ
D
C
A, B
B
A
arcsin±=θ
D
C
arcsin±
Phase Deviation Measurement Principle
The phase deviation between two signals with the same frequency can be easily
measured via the Lissajous method. The figure below shows the measurement
principle of the phase deviation (assume that the amplitudes of the two signals are
the same).
The signal must be horizontally centered
II I
D
C
A
III IV
B
According to
or
channels; the definitions of
(wherein, θ is the phase deviation angle between the
, C and D are as shown in the figure above),
you can calculate the phase deviation angle.
or
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 withi n (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 s hould be within quadrant II and III, namely within (π/2 to
π) or (π to 3π/2).
3-6 MSO4000/DS4000 User’s Guide
Chapter 3 Horizontal System Setting RIGOL
1=
）（
D
C
B
A
°
90±=1±=θ arcsin
Application example: measure the phase deviation of the input
signals of two channels.
Method 1: Use Lissajous method
1. Connect a sine signal to CH1 and then connect a sine signal with the same
frequency and amplitude but a 90° phase deviation to CH2.
2. Press AUTO and turn on the X-Y time base mode.
If the XY1 area display is t urned on, please move to the next step. If the XY1
area display is tu rn e d o ff, press XY1 to switch to “On”.
3. Use VERTICAL POSITION of C H1 and CH2 to display the signals at the
center of the screen and use VERTICAL
the signals easy to observe (if necessary, please refer to “
Vertical Sca le” to switch the vertical scale adjust ment mode). At this point, the
circle as shown in the figure below should b e displayed.
SCALE of CH1 and CH2 to ma ke
To Adjust the
4. According to the phase deviation measurement principle diagra m and the
measurement result in the figure above, it can be calculated that
Therefore, the phase deviation angle
Note: The maximu m sample rate of the oscilloscope in the X-Y mode is 2.0 GSa/s.
Generally, longer sample waveform ensures better figure; but, as being limited by
the memory depth, longer waveform will require a reduction in the sample rate
(please refer to “To Set the Memory Depth”). Therefore, in this measurement
process, reducing the sample rate appropriately can improve the displa yed Lissajous
figure.
MSO4000/DS4000 User’s Guide 3-7
.
.
RIGOL Chapter 3 Horizontal System Setting
Method 2: Use the one-key measurement function of the oscilloscope
Please measure the phase deviation between the input waveforms of CH1 and CH2
using the one-key measurement function by referring to “To Make One-key
Measurement”.
3-8 MSO4000/DS4000 User’s Guide
Chapter 3 Horizontal System Setting RIGOL
Roll Mode
In this mode, the waveform scrolls from the right to the left. The adjustable range of
the horizontal time base is from 200.0 ms/div to 1.000 ks/div. The horizontal time
base will be set to 200.0 ms/div automatically when you turn on the “Roll” mode.
Note:
In this mode, the “To Adjust the Horizontal Position”, “To Turn Delayed
Sweep On/Off”, “Trigger”, “To Specify the Measurement Range”,
“Protocol Decoding”, “Pass/Fail Test”, “Waveform Recording” and “To
Set the Persistence Time” are not available.
If the delayed sweep function is enabled, when the “Roll” mode is enabled, the
delayed sweep function will be disabled automatically; when the “Y-T” mode is
enabled again, the delayed sweep function will be enabled automatically.
Note: Please pay attention to distin guish the Roll mode from “Slow Sweep Mode”.
MSO4000/DS4000 User’s Guide 3-9
RIGOL Chapter 3 Horizontal System Setting
To Turn Delayed Sweep On/Off
Delayed sweep can be used to enlarge a length of w a v eform horizont ally t o view the
waveform details.
Note: Delayed sweep can only be turned on when the current time b ase mode is
“Y-T” and the “Pass/Fail” test is off.
Press MENU in the horizontal control area (HORIZONTAL) and press Delayed to
turn delayed sweep (the default is off) on or off. You can also p re s s HORIZONTAL
SCALE to quickly switch the on/off status of the delayed sweep.
When delayed sweep is turned on, the screen is divided into two disp lay areas as
shown in the figure below. The wav e f orm of normal sweep is dis played in the upper
part of the screen and its horizontal ti me base (calle d main time base) is displayed at
the upper-left side of the screen. The delayed sweep waveform (the horizontally
expanded waveform) is disp layed in the lower part of the screen, its horizontal time
base (called delayed sweep time base) is displayed at the middle of the screen and
its horizontal position (called delayed sweep horizontal position) is displayed at the
upper-right side of the screen. At this point, HORIZONTAL
adjust the delayed sweep time base; HORIZONTAL
adjust the delayed sweep horizontal position.
POSITION is used to
SCALE is used to
3-10 MSO4000/DS4000 User’s Guide
Chapter 3 Horizontal System Setting RIGOL
Main Time Base
Normal Sweep Waveform
Delayed Sweep Horizontal Position
The waveform before enlargement
Delayed Sweep Time Bas e
Delayed Sweep Waveform (the waveform after enlargement)
The waveform before enlargement:
The waveform of normal sweep is displayed in the upper part of the screen. W herein,
the waveform in the area (called the enlargement area) that has not bee n cover ed by
subtransparent blue is the waveform before enlargement (correspond to the
wavef orm afte r enlargement display ed i n the l owe r pa rt of t he s c reen ). You can turn
HORIZONTAL
HORIZONTAL
POSITION to move the enlargement area left or right or turn
SCALE to enlarge or reduce the enlargement area.
Note: To modi fy the horizontal time base of normal sweep (namely, the main time
base), delayed sweep should be turned off. After setting the desired main time base
by turning HORIZONTAL
SCALE, turn on delay ed sweep.
The waveform after enlargement:
The delayed sweep wavefor m in the lower part of the screen is the enlarged
waveform (the horizontally expanded waveform). It corresponds to the waveform
before enlargement in the upper part of the screen. Compa red to the ma in ti me base ,
MSO4000/DS4000 User’s Guide 3-11
RIGOL Chapter 3 Horizontal System Setting
the delayed sweep time base improves the waveform resolution (as shown in the
figure above).
Note: The de layed sweep time base should be less than or equal to the main time
base.
3-12 MSO4000/DS4000 User’s Guide
Chapter 3 Horizontal System Setting RIGOL
To Specify the Horizontal Reference
The horizontal reference is the reference position according to whic h the screen
waveform is expanded or compressed horizontally when using HORIZONTAL
SCALE to modify the horizontal time base.
Note: Y ou ca n only set th e horizontal reference whe n the “Y-T” mode is used and the
delayed sweep is on.
Press MENU (in the horizontal control area (HORIZON TAL)) HorRef, turn the
multi-function knob to select the desired horizontal reference position and press
the knob to select this position (the default is the screen center). You can also press
HorRef continuously to switch the current horizontal reference position.
Screen Center: when changing the horizontal time base, the wavef orm displayed
is expanded or compressed horizontally relative to the center of the screen.
Trigger Position: when changing the horizo ntal tim e base, t he waveform is
expanded or compressed horizontally relative to the trigger point.
User-defined: when changing the horizontal time base, the waveform is
expanded or compressed horizontally relative to the user-defined reference
position.
When “User” is selected, press RefPos and turn the multi-function knob to
set the user-defined reference position. The adjustable range is from -350 (the
rightmost) to 350 (the leftm ost). The default is 0 (screen center). Pressing the
multi-function k nob
can quickly reset the reference position to 0.
MSO4000/DS4000 User’s Guide 3-13
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