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Guaranty and Declaration
Copyright
© 2022 RIGOL TECHNOLOGIES CO., LTD. All Rights Reserved.
Trademark Information
RIGOL®is the trademark of RIGOL TECHNOLOGIES CO., LTD.
Notices
• RIGOL products are covered by P.R.C. and foreign patents, issued and pending.
• RIGOL reserves the right to modify or change parts of or all the specifications and pricing
policies at the company's sole decision.
• Information in this publication replaces all previously released materials.
• Information in this publication is subject to change without notice.
• RIGOL shall not be liable for either incidental or consequential losses in connection with the
furnishing, use, or performance of this manual, as well as any information contained.
• Any part of this document is forbidden to be copied, photocopied, or rearranged without prior
written approval of RIGOL.
Product Certification
RIGOL guarantees that this product conforms to the national and industrial standards in China as
well as the ISO9001:2015 standard and the ISO14001:2015 standard. Other international standard
conformance certifications are in progress.
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Section Description Page
List of Figures............................................................................................................................ VII
List of Tables...............................................................................................................................XII
1 Safety Requirement.....................................................................................................................1
1.1 General Safety Summary................................................................................................... 1
1.2 Safety Notices and Symbols.............................................................................................3
1.3 Measurement Category..................................................................................................... 3
1.4 Ventilation Requirement....................................................................................................4
1.5 Working Environment.........................................................................................................4
1.6 Care and Cleaning................................................................................................................6
1.7 Environmental Considerations.........................................................................................6
2 Product Features..........................................................................................................................8
3 Document Overview................................................................................................................... 9
4 Quick Start................................................................................................................................... 11
4.1 General Inspection.............................................................................................................11
4.2 Appearance and Dimensions.........................................................................................11
4.3 To Prepare for Use.............................................................................................................12
4.3.1 Tilting the Oscilloscope for Easier Viewing...................................................... 12
4.3.2 Connecting to Power................................................................................................13
4.3.3 Turn-on Checkout......................................................................................................13
4.3.4 Replacing the Fuse....................................................................................................14
4.3.5 Setting the System Language............................................................................... 15
4.3.6 Connecting Probes....................................................................................................15
4.3.7 Function Inspection.................................................................................................. 15
4.3.8 Probe Compensation................................................................................................17
4.4 Product Overview.............................................................................................................. 17
4.4.1 Front Panel Overview...............................................................................................18
4.4.2 Rear Panel Overview.................................................................................................24
4.4.3 User Interface Overview..........................................................................................26
4.5 Touch Screen Gestures.....................................................................................................28
4.5.1 Tap...................................................................................................................................28
4.5.2 Pinch&Stretch.............................................................................................................29
4.5.3 Drag................................................................................................................................29
4.6 Parameter Setting Method.............................................................................................30
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Page 4
4.7 Using the Security Lock................................................................................................... 36
4.8 Accessing the Built-in Help System............................................................................. 36
4.9 Viewing the Option Information and Install the Option......................................37
5 Vertical System...........................................................................................................................39
5.1 To Enable or Disable the Analog Channel.................................................................39
5.2 To Adjust the Vertical Scale............................................................................................ 41
5.3 To Adjust the Vertical Offset.......................................................................................... 42
5.4 To Specify Channel Coupling.........................................................................................43
5.5 To Specify Bandwidth Limit............................................................................................ 43
5.6 To Specify Input Impedance...........................................................................................44
5.7 To Invert a Waveform.......................................................................................................44
5.8 To Set Probe.........................................................................................................................45
5.9 To Specify the Amplitude Unit...................................................................................... 48
5.10 To Adjust Bias......................................................................................................................48
5.11 To Specify the Skew...........................................................................................................48
5.12 To Turn the Channel Label Display On/Off............................................................... 49
6 Horizontal System.....................................................................................................................50
6.1 To Adjust the Horizontal Time Base............................................................................ 50
6.2 To Adjust the Horizontal Position................................................................................ 51
6.3 Zoom Mode (Delayed Sweep).......................................................................................52
7 Acquisition System....................................................................................................................55
7.1 Acquisition Mode...............................................................................................................55
7.2 Sampling Mode..................................................................................................................58
7.3 Sample Rate.........................................................................................................................58
7.4 Memory Depth................................................................................................................... 59
7.5 Horizontal Expansion Reference...................................................................................61
7.6 Roll Mode............................................................................................................................. 61
7.7 XY Mode................................................................................................................................62
8 Triggering the Oscilloscope................................................................................................... 65
8.1 Trigger Source.....................................................................................................................65
8.2 Trigger Level........................................................................................................................ 66
8.3 Trigger Mode.......................................................................................................................67
8.4 Trigger Coupling.................................................................................................................68
8.5 Trigger Holdoff....................................................................................................................69
8.6 Noise Rejection...................................................................................................................69
8.7 Trigger Type.........................................................................................................................70
8.7.1 Edge Trigger................................................................................................................ 70
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8.7.2 Pulse Width Trigger.................................................................................................. 72
8.7.3 Slope Trigger...............................................................................................................74
8.7.4 Video Trigger...............................................................................................................77
8.7.5 Pattern Trigger............................................................................................................80
8.7.6 Duration Trigger.........................................................................................................82
8.7.7 Timeout Trigger..........................................................................................................85
8.7.8 Runt Trigger.................................................................................................................87
8.7.9 Window Trigger..........................................................................................................90
8.7.10 Delay Trigger............................................................................................................... 92
8.7.11 Setup/Hold Trigger................................................................................................... 94
8.7.12 Nth Edge Trigger........................................................................................................97
8.7.13 RS232 Trigger..............................................................................................................99
8.7.14 I2C Trigger................................................................................................................. 102
8.7.15 SPI Trigger..................................................................................................................106
8.7.16 CAN Trigger...............................................................................................................108
8.7.17 LIN Trigger.................................................................................................................112
8.8 Trigger Output Connector............................................................................................115
9 Math Operation.......................................................................................................................116
9.1 Arithmetic Operation..................................................................................................... 117
9.2 Function Operation.........................................................................................................120
9.3 FFT Operation...................................................................................................................124
9.4 Logic Operation............................................................................................................... 129
9.5 Digital Filter....................................................................................................................... 132
10 Measurements..........................................................................................................................137
10.1 Auto Scale..........................................................................................................................137
10.2 Auto Measurements.......................................................................................................138
10.2.1 Measurement Parameter......................................................................................138
10.2.1.1 Time Parameters..............................................................................................139
10.2.1.2 Count Values.....................................................................................................140
10.2.1.3 Delay and Phase Parameters...................................................................... 142
10.2.1.4 Voltage Parameters........................................................................................143
10.2.1.5 Other Parameters............................................................................................145
10.2.2 Select the Measurement Item.............................................................................145
10.2.3 Measurement Settings.......................................................................................... 148
10.2.4 Remove the Measurement Results................................................................... 151
10.3 Cursor Measurements....................................................................................................151
10.3.1 Manual Mode........................................................................................................... 153
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10.3.2 Track Mode................................................................................................................155
10.3.3 XY Mode.....................................................................................................................158
11 Digital Voltmeter (DVM) and Frequency Counter....................................................... 161
11.1 Digital Voltmeter (DVM)................................................................................................161
11.1.1 Measurement Settings.......................................................................................... 162
11.1.2 Remove the Measurement...................................................................................163
11.2 Frequency Counter..........................................................................................................163
11.2.1 Measurement Settings.......................................................................................... 164
11.2.2 Reset Statistics..........................................................................................................165
11.2.3 Remove the Measurement...................................................................................165
12 Reference Waveform..............................................................................................................166
12.1 To Enable Ref Function..................................................................................................166
12.2 To Set the Reference Waveform.................................................................................166
12.3 To Set the Ref Waveform Display...............................................................................167
12.4 Export and Import Operation..................................................................................... 168
13 Pass/Fail Test.............................................................................................................................170
13.1 To Enable or Disable the Pass/Fail Test Function..................................................170
13.2 To Select the Source.......................................................................................................171
13.3 To Create a Mask............................................................................................................. 171
13.4 To Set the Output Form of the Test Results........................................................... 171
13.5 To Start or Stop the Pass/Fail Test Operation........................................................ 172
13.6 To Display the Statistics of the Test Results............................................................173
14 Protocol Decoding..................................................................................................................175
14.1 Parallel Decoding.............................................................................................................175
14.1.1 Clock Setting (CLK)................................................................................................. 176
14.1.2 Bus Setting.................................................................................................................177
14.1.3 Display-related Settings........................................................................................178
14.1.4 Event Table.................................................................................................................178
14.2 RS232 Decoding.............................................................................................................. 179
14.2.1 Source Setting..........................................................................................................180
14.2.2 To Set Data Package...............................................................................................181
14.2.3 Display-related Settings........................................................................................182
14.2.4 Event Table.................................................................................................................182
14.3 I2C Decoding.................................................................................................................... 183
14.3.1 Source Setting..........................................................................................................184
14.3.2 Display-related Settings........................................................................................185
14.3.3 Event Table.................................................................................................................185
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14.4 SPI Decoding.....................................................................................................................187
14.4.1 To Set the Source.................................................................................................... 188
14.4.2 To Set Mode and Data...........................................................................................188
14.4.3 Display-related Settings........................................................................................190
14.4.4 Event Table.................................................................................................................190
14.5 CAN Decoding..................................................................................................................191
14.5.1 Signal Configuration.............................................................................................. 192
14.5.2 Display-related Settings........................................................................................193
14.5.3 Event Table.................................................................................................................193
14.6 LIN Decoding....................................................................................................................194
14.6.1 Signal Configuration.............................................................................................. 195
14.6.2 Display-related Settings........................................................................................196
14.6.3 Event Table.................................................................................................................196
15 Multi-pane Windowing.........................................................................................................198
16 Waveform Recording and Playing.....................................................................................200
16.1 Common Settings............................................................................................................200
16.2 Record Options................................................................................................................ 201
16.3 Play Options......................................................................................................................202
17 Search and Navigation..........................................................................................................205
17.1 Search..................................................................................................................................205
17.2 Navigation..........................................................................................................................207
18 Display Control........................................................................................................................ 211
18.1 Display Type......................................................................................................................211
18.2 Persistence Time..............................................................................................................211
18.3 Waveform Intensity.........................................................................................................212
18.4 To Set the Screen Grid................................................................................................... 212
18.5 Display Settings................................................................................................................212
18.6 Show Scale.........................................................................................................................213
18.7 Color Grade....................................................................................................................... 213
18.8 Waveform Freeze.............................................................................................................213
19 Store and Load.........................................................................................................................214
19.1 To Enter the Storage Menu..........................................................................................214
19.2 To Save a File.....................................................................................................................214
19.2.1 Save Image................................................................................................................214
19.2.2 Save Wave..................................................................................................................216
19.2.3 Save Setup.................................................................................................................218
19.2.4 Binary Data Format (.bin)..................................................................................... 219
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19.3 Load a File..........................................................................................................................222
19.4 Firmware Upgrade...........................................................................................................223
19.5 Disk Management...........................................................................................................224
20 System Utility Function Setting..........................................................................................227
20.1 I/O Setting..........................................................................................................................227
20.2 Basic Settings....................................................................................................................229
20.3 About this Oscilloscope................................................................................................ 231
20.4 Other Settings...................................................................................................................232
20.5 Auto Config....................................................................................................................... 232
20.6 SelfCal..................................................................................................................................233
20.7 Option List..........................................................................................................................234
20.8 Quick Action Settings.....................................................................................................234
20.9 Self-check...........................................................................................................................236
21 Remote Control........................................................................................................................238
21.1 Remote Control via USB................................................................................................239
21.2 Remote Control via LAN............................................................................................... 239
21.3 Remote Control via GPIB.............................................................................................. 240
22 Troubleshooting...................................................................................................................... 242
23 Appendix....................................................................................................................................244
23.1 Appendix A: Options and Accessories..................................................................... 244
23.2 Appendix B: Warranty....................................................................................................244
23.3 Appendix C: Factory Settings...................................................................................... 245
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Page 9
List of Figures
Figure 4.1 Front View ..............................................................................................................11
Figure 4.2 Side View ................................................................................................................12
Figure 4.3 Flipping in/out Tabs ........................................................................................... 12
Figure 4.4 Connecting to Power ......................................................................................... 13
Figure 4.5 Replacing the Fuse ............................................................................................. 14
Figure 4.6 Connecting the Passive Probe ........................................................................15
Figure 4.7 Using the Compensation Signal .................................................................... 16
Figure 4.8 Square Waveform Signal ..................................................................................16
Figure 4.9 Probe Compensation .........................................................................................17
Figure 4.10 Front Panel ..........................................................................................................18
Figure 4.11 Rear Panel ............................................................................................................24
Figure 4.12 User Interface .....................................................................................................26
Figure 4.13 Tap Gesture .........................................................................................................29
Figure 4.14 Pinch&Stretch Gesture ....................................................................................29
Figure 4.15 Drag Gesture ......................................................................................................30
Figure 4.16 English Input Interface ....................................................................................31
Figure 4.17 Chinese Input Interface .................................................................................. 32
Figure 4.18 String Keypad .....................................................................................................34
Figure 4.19 Numeric Keypad ................................................................................................35
Figure 4.20 To Use the Security Lock ................................................................................36
Figure 5.1 Vertical Menu ....................................................................................................... 39
Figure 5.2 Waveform Invert On/Off .................................................................................. 45
Figure 5.3 Probe Setting Menu ...........................................................................................46
Figure 5.4 Zero Offset ............................................................................................................ 49
Figure 6.1 Horizontal Menu ................................................................................................. 50
Figure 6.2 Zoom Mode ..........................................................................................................53
Figure 7.1 Horizontal Menu ................................................................................................. 55
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Figure 7.2 Display Modes ......................................................................................................57
Figure 7.3 Memor
y Depth .................................................................................................... 60
Figure 7.4 XY Menu .................................................................................................................63
Figure 7.5 Measurement Schematic Diagram of Phase Deviation .........................64
Figure 8.1 Schematic Diagram of the Acquisition Memory ......................................67
Figure 8.2 Trigger Holdoff .....................................................................................................69
Figure 8.3 Edge Trigger Setting Menu ..............................................................................70
Figure 8.4 Positive/Negative Pulse Width .......................................................................72
Figure 8.5 Pulse Width Trigger Setting Menu ................................................................72
Figure 8.6 Positive Slope Time/Negative Slope Time ................................................. 75
Figure 8.7 Slope Trigger Setting Menu ............................................................................ 75
Figure 8.8 Video Trigger Setting Menu ............................................................................78
Figure 8.9 Pattern Trigger ..................................................................................................... 80
Figure 8.10 Pattern Trigger Setting Menu .......................................................................81
Figure 8.11 Duration Trigger ................................................................................................83
Figure 8.12 Duration Trigger Setting Menu ....................................................................83
Figure 8.13 Timeout Trigger .................................................................................................85
Figure 8.14 Timeout Trigger Menu ....................................................................................86
Figure 8.15 Runt Trigger ........................................................................................................87
Figure 8.16 Runt Trigger Setting Menu ............................................................................88
Figure 8.17 Window Trigger Setting Menu .....................................................................90
Figure 8.18 Delay Trigger ......................................................................................................92
Figure 8.19 Delay Trigger Setting Menu ..........................................................................92
Figure 8.20 Setup/Hold Trigger .......................................................................................... 95
Figure 8.21 Setup/Hold Trigger Setting Menu ..............................................................95
Figure 8.22 Nth Edge Trigger ...............................................................................................97
Figure 8.23 Nth Edge Trigger Setting Menu .................................................................. 98
Figure 8.24 Schematic Diagram of RS232 Protocol ..................................................... 99
Figure 8.25 RS232 Trigger Setting Menu ......................................................................100
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Page 11
Figure 8.26 Sequence Diagram of I2C Protocol ..........................................................102
Figure 8.27 I2C T
rigger Setting Menu ............................................................................ 103
Figure 8.28 Binary Format Setting ...................................................................................104
Figure 8.29 Hexadecimal Format Setting ......................................................................105
Figure 8.30 Sequential Chart of SPI Bus ........................................................................106
Figure 8.31 SPI Trigger Setting Menu ............................................................................ 106
Figure 8.32 Data Frame Format of the CAN Bus ........................................................109
Figure 8.33 CAN Trigger Setting Menu ..........................................................................109
Figure 8.34 Sample Position ..............................................................................................110
Figure 8.35 Data Frame Format of the LIN Bus .......................................................... 112
Figure 8.36 LIN Trigger Setting Menu ............................................................................112
Figure 8.37 Sample Position ..............................................................................................113
Figure 9.1 Math Menu .........................................................................................................116
Figure 9.2 Waveform Display Window of the Operation Results .........................117
Figure 9.3 Arithmetic Operation Menu ..........................................................................118
Figure 9.4 Operation Result Display Window ..............................................................118
Figure 9.5 Function Operation Menu .............................................................................121
Figure 9.6 Operation Result Display Window ..............................................................122
Figure 9.7 FFT Operation Menu ....................................................................................... 124
Figure 9.8 FFT Operation Window .................................................................................. 125
Figure 9.9 Peak Search .........................................................................................................128
Figure 9.10 Logic Operation Menu .................................................................................129
Figure 9.11 Operation Result Display Window ...........................................................130
Figure 9.12 Digital Filter Menu .........................................................................................133
Figure 9.13 Operation Result Display Window ...........................................................133
Figure 10.1 Time Parameters .............................................................................................139
Figure 10.2 Delay and Phase Parameters ......................................................................142
Figure 10.3 Voltage Parameters ....................................................................................... 143
Figure 10.4 Vertical Measurement Items ...................................................................... 146
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Figure 10.5 Horizontal Measurement Items ................................................................ 147
Figure 10.6 Other Measur
ement Items ..........................................................................147
Figure 10.7 Measurement Settings Menu .................................................................... 148
Figure 10.8 Cursors ...............................................................................................................151
Figure 10.9 Manual Mode Setting Menu ......................................................................153
Figure 10.10 Manual Cursor Measurement Example ................................................155
Figure 10.11 Track Mode Setting Menu ........................................................................156
Figure 10.12 Track Measurement (before Horizontal Expansion) ........................ 157
Figure 10.13 Track Measurement (after Horizontal Expansion) ............................158
Figure 10.14 XY Mode Setting Menu ............................................................................. 159
Figure 11.1 DVM Setting Menu ........................................................................................162
Figure 11.2 Frequency Counter Setting Menu ............................................................164
Figure 12.1 Reference Waveform Menu ........................................................................166
Figure 13.1 Pass/Fail Test Menu ....................................................................................... 170
Figure 13.2 Pass/Fail Test Interface ................................................................................. 173
Figure 14.1 Schematic Diagram of Parallel Decoding .............................................. 175
Figure 14.2 Parallel Decoding Menu .............................................................................. 176
Figure 14.3 Parallel Decoding Event Table ....................................................................178
Figure 14.4 Schematic Diagram of RS232 Serial Bus ................................................179
Figure 14.5 RS232 Decoding Menu ................................................................................ 180
Figure 14.6 RS232 Decoding Event Table ..................................................................... 183
Figure 14.7 I2C Serial Bus ...................................................................................................184
Figure 14.8 I2C Decoding Menu ...................................................................................... 184
Figure 14.9 I2C Decoding Event Table ........................................................................... 186
Figure 14.10 SPI Serial Bus .................................................................................................187
Figure 14.11 SPI Decoding Menu ....................................................................................187
Figure 14.12 SPI Decoding Event Table ......................................................................... 190
Figure 14.13 CAN Decoding Menu ................................................................................. 191
Figure 14.14 Sample Position ............................................................................................192
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Page 13
Figure 14.15 CAN Decoding Event Table ...................................................................... 193
Figure 14.16 LIN Decoding Menu
....................................................................................195
Figure 14.17 LIN Decoding Event Table .........................................................................196
Figure 15.1 "Add Window" Menu ....................................................................................198
Figure 16.1 "Record" Menu ................................................................................................200
Figure 16.2 Minimized "Play" Menu ............................................................................... 203
Figure 17.1 Search Menu ....................................................................................................205
Figure 17.2 MarkTable Display ..........................................................................................207
Figure 17.3 Navigation Menu ........................................................................................... 208
Figure 17.4 Simplified Navigation Menu ...................................................................... 208
Figure 17.5 "Search Event" Navigation Setting Menu ..............................................209
Figure 17.6 "Frame Segment" Navigation Setting Menu ........................................209
Figure 18.1 Display Setting Menu ................................................................................... 211
Figure 19.1 Image Saving Setting Menu .......................................................................215
Figure 19.2 Waveform Saving Setting Menu ...............................................................217
Figure 19.3 Setup Saving Setting Menu ........................................................................218
Figure 19.4 Load Setting Menu ........................................................................................223
Figure 19.5 Upgrade Menu ................................................................................................224
Figure 19.6 Disk Management Interface .......................................................................225
Figure 20.1 Self-calibration Menu ................................................................................... 233
Figure 20.2 Quick Menu ......................................................................................................234
Figure 20.3 Key Test Interface ...........................................................................................236
Figure 20.4 Touch Screen Test Interface ........................................................................237
Figure 21.1 Search for the Available Device .................................................................241
Figure 21.2 Confirm the Available Device .....................................................................241
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Page 14
List of Tables
Table 5.1 Probe Ratio ..............................................................................................................46
Table 8.1 Video Standard ...................................................................................................... 79
Table 9.1 Window Function ................................................................................................126
Table 9.2 Logic Operation .................................................................................................. 130
Table 14.1 Bus Setting ..........................................................................................................177
Table 19.1 BIN File Format ................................................................................................. 219
Table 19.2 File Header ..........................................................................................................220
Table 19.3 Waveform Header ............................................................................................220
Table 19.4 Waveform Data Header ................................................................................. 222
Table 23.2 Factory Settings ................................................................................................245
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Page 15
Safety Requirement
1
Safety Requirement
1.1 General Safety Summary
Please review the following safety precautions carefully before putting the instrument
into operation so as t
any product connected to it. To prevent potential hazards, please follow the
instructions specified in this manual to use the instrument properly.
• Use Proper Power Cord.
Only the exclusive power cord designed for the instrument and authorized for
use within the destination 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 essential to connect the earth terminal of the power
cord to the Protective Earth terminal before connecting any inputs or outputs.
• Connect the Probe Correctly.
o avoid any personal injury or damage to the instrument and
If a probe is used, the probe ground lead must be connected to earth ground.
Do not connect the ground lead to high voltage. Improper way of connection
could result in dangerous voltages being present on the connectors, controls or
other surfaces of the oscilloscope and probes, which will cause potential hazards
for operators.
• Observe All Terminal Ratings.
To avoid fire or shock hazard, observe all ratings and markers on the instrument
and check your manual for more information about ratings before connecting
the instrument.
• Use Proper Overvoltage Protection.
Ensure that no overvoltage (such as that caused by a bolt of lightning) can reach
the product. Otherwise, the operator might be exposed to the danger of an
electric shock.
• Do Not Operate Without Covers.
Do not operate the instrument with covers or panels removed.
• Do Not Insert Objects Into the Air Outlet.
Do not insert objects into the air outlet, as doing so may cause damage to the
instrument.
• Use the Proper Fuse.
Please use the specified fuses.
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Safety Requirement
• Avoid circuit or wire exposure.
• Do Not Operate With Suspected Failures.
• Keep Well Ventilation.
• Do Not Operate in Wet Conditions.
Do not touch exposed junctions and components when the instrument is
pow
ered on.
If you suspect damage occurs to the instrument, have it inspected by RIGOL
authorized personnel before further operations. Any maintenance, adjustment or
replacement especially to circuits or accessories must be performed by RIGOL
authorized personnel.
Inadequate ventilation may cause an increase of temperature in the instrument,
which would cause damage to the instrument. So please keep the instrument
well ventilated and inspect the air outlet and the fan regularly.
To avoid short circuit inside the instrument or electric shock, never operate the
instrument in a humid environment.
• Do Not Operate in an Explosive Atmosphere.
To avoid personal injuries or damage to the instrument, never operate the
instrument in an explosive atmosphere.
• Keep Instrument Surfaces Clean and Dry.
To avoid dust or moisture from affecting the performance of the instrument,
keep the surfaces of the instrument clean and dry.
• Prevent Electrostatic Impact.
Operate the instrument in an electrostatic discharge protective environment to
avoid damage induced by static discharges. Always ground both the internal and
external conductors of cables to release static before making connections.
• Use the Battery Properly.
Do not expose the battery (if available) to high temperature or fire. Keep it out of
the reach of children. Improper change of a battery (lithium battery) may cause
an explosion. Use the RIGOL specified battery only.
• Handle with Caution.
Please handle with care during transportation to avoid damage to keys, knobs,
interfaces, and other parts on the panels.
WARNING
Equipment meeting Class A requir
services within residential environment.
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ements may not offer adequate protection to broadcast
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Page 17
1.2 Safety Notices and Symbols
Safety Notices in this Manual:
WARNING
Safety Requirement
Indicates a pot
serious injury or death.
CAUTION
Indicates a pot
in damage to the product or loss of important data.
Safety Notices on the Product:
• D
• WARNING
• CAUTION
ANGER
It calls attention to an operation, if not correctly performed, could result in injury
or hazard immediately.
It calls attention to an operation, if not correctly performed, could result in
potential injury or hazard.
It calls attention to an operation, if not correctly performed, could result in
damage to the product or other devices connected to the product.
entially hazardous situation or practice which, if not avoided, will result in
entially hazardous situation or practice which, if not avoided, could result
Safety Symbols on the Product:
Hazardous
Voltage
Safety W
arning Protective Earth
1.3 Measurement Category
Measurement Category
This instrument can make measur
WARNING
This instrument can only be used for measur
categories.
ements in Measurement Category I.
Chassis Ground Test Ground
Terminal
ements within its specified measurement
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Page 18
Safety Requirement
Measurement Category Definitions
• Measur
connected to MAINS. Examples are measurements on circuits not derived from
MAINS, and specially protected (internal) MAINS derived circuits. In the latter
case, transient stresses are variable. Thus, you must know the transient withstand
capability of the equipment.
• Measurement category II is for measurements performed on circuits directly
connected to low voltage installation. Examples are measurements on household
appliances, portable tools and similar equipment.
• Measurement category III is for measurements performed in the building
installation. Examples are measurements on distribution boards, circuit-breakers,
wiring (including cables, bus-bars, junction boxes, switches and socket-outlets) in
the fixed installation, and equipment for industrial use and some other
equipment. For example, stationary motors with permanent connection to a
fixed installation.
• Measurement category IV is for measurements performed at the source of a
low-voltage installation. Examples are electricity meters and measurements on
primary overcurrent protection devices and ripple control units.
ement category I is for measurements performed on circuits not directly
1.4 Ventilation Requirement
This instrument uses a fan to force cooling. Please make sure that the air inlet and
outlet areas ar
in a bench-top or rack setting, provide at least 10 cm clearance beside, above and
behind the instrument for adequate ventilation.
CAUTION
Inadequate ventilation may cause an increase of temperature in the instrument, which
would cause damage to the instrument. So please keep the instrument well ventilated and
inspect the air outlet and the fan regularly.
e free from obstructions and have free air. When using the instrument
1.5 Working Environment
Temperature
Operating: 0℃ to +50℃
Non-operating: -30℃ to +60℃
Humidity
• Operating:
Below +30℃: ≤90% RH (without condensation)
+30℃ to +40℃: ≤75% RH (without condensation)
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+40℃ to +50℃: ≤45% RH (without condensation)
• Non-operating:
Below +60℃: ≤90% RH (without condensation)
WARNING
To av
oid short circuit inside the instrument or electric shock, never operate the
instrument in a humid environment.
Altitude
• Operating: below 3 km
Non-operating: below 15 km
•
Protection Level Against Electric Shock
ESD ±8kV
Safety Requirement
Installation (Overvoltage) Category
This product is powered by mains conforming to installation (overvoltage) category II.
WARNING
Ensure that no ov
product. Otherwise, the operator might be exposed to the danger of an electric shock.
ervoltage (such as that caused by a bolt of lightning) can reach the
Installation (Overvoltage) Category Definitions
Installation (over
voltage) category I refers to signal level which is applicable to
equipment measurement terminals connected to the source circuit. Among these
terminals, precautions are done to limit the transient voltage to a low level.
Installation (overvoltage) category II refers to the local power distribution level which
is applicable to equipment connected to the AC line (AC power).
Pollution Degree
Pollution Degree 2
Pollution Degree Definition
• Pollution Degree 1: No pollution or only dry, nonconductive pollution occurs.
The pollution has no effect. For example, a clean room or air-conditioned office
environment.
• Pollution Degree 2: Normally only nonconductive pollution occurs. Temporary
conductivity caused by condensation is to be expected. For example, indoor
environment.
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Safety Requirement
• Pollution Degree 3: Conductive pollution or dry nonconductive pollution that
becomes conductive due to condensation occurs. For example, sheltered
outdoor environment.
• Pollution Degree 4: The pollution generates persistent conductivity caused by
conductive dust, rain, or snow. For example, outdoor areas.
Safety Class
Class 1 – Grounded Product
1.6 Care and Cleaning
Care
Do not store or leave the instrument where it may be exposed to direct sunlight for
long periods of time.
Cleaning
Clean the instrument regularly according to its operating conditions.
1. Disconnect the instrument from all power sources.
2. Clean the external surfaces of the instrument with a soft cloth dampened with mild
detergent or water. Avoid having any water or other objects into the chassis via the
heat dissipation hole. When cleaning the LCD, take care to avoid scarifying it.
CAUTION
To avoid damage to the instrument, do not expose it to caustic liquids.
WARNING
To avoid short-circuit resulting from moisture or personal injuries, ensure that the
instrument is completely dry before connecting it to the power supply.
1.7 Environmental Considerations
The following symbol indicates that this product complies with the WEEE Directive
2002/96/EC.
The equipment may contain substances that could be harmful to the environment or
human health. To avoid the release of such substances into the environment and
avoid harm to human health, we recommend you to recycle this product
appropriately to ensure that most materials are reused or recycled properly. Please
contact your local authorities for disposal or recycling information.
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Product Features
2
Product Features
Product Features
• Brand-new chipset "Centaurus" developed by RIGOL
• Ultra-low noise floor for cleaner signals, measuring small signals accurately
• 12-bit v
• Up to 200 MHz analog bandwidth, 2/4 analog channels, and 1 EXT channel
• Up to 2 GSa/s real-time sample rate
• Max. memory depth: 100 Mpts (optional)
• Vertical sensitivity range: 500 μV/div to 10 V/div
• Up to 1,500,000 wfms/s waveform capture rate with the UltraAcquire mode
• 10.1'' 1280*800 HD touch display
• User-friendly Flex Knobs, bringing smoother interaction
• Standard photoelectric encoder operating knobs, effectively prolonging its
service life
• Standard USB Device & Host, LAN, and HDMI interfaces
ertical resolution
[1]
DHO1000 series digital oscilloscope is designed to meet the designing, debugging,
and testing r
brand-new chipset "Centaurus" developed by RIGOL, this series achieves a fast
waveform capture rate of 1,500,000 wfms/s with the UltraAcquire mode, 100 Mpts
memory depth, 12-bit vertical resolution, all combined with excellent noise floor
performance and vertical accuracy to meet your requirements for more accurate
measurements, bringing extraordinary T&M experience for you.
NOTE
[1]: 16 bits in High Resolution mode.
equirements of the mainstream oscilloscope market. Adopting the
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Document Overview
3
Document Overview
This manual gives you a quick overview of the front and rear panel, user interface as
well as basic operation methods of DHO1000 series.
Publication Number
UGA32101-1110
Software Version
Software upgrade might change or add product features. Please acquire the latest
version of the manual from RIGOL
Format Conventions in this Manual
1. Key
The front panel key is denoted by the menu key icon. For example,
indicates the "DEFAULT" key.
2. Menu
The menu item is denot
Shading" in the manual. For example,
the "Utility" function menu. Y
3. Operation Pr
The next step of the operation is denoted by ">" in the manual. For example,
> Storage indicates first clicking or tapping and then clicking or tapping
Storage.
4. The front/rear p
for example, [AUX OUT].
5. Knob
Label Knob Label Knob
ocedures
anel connector is denoted by "Brackets + Connector Name (Bold)",
ed by the format of "Menu Name (Bold) + Character
Setup indicates the "Setup" sub-menu under
ou can click or tap
Setup to access the "Setup" menu.
Horizontal
POSITION
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Horizontal Position
Knob
1
Multipurpose
Knob 1
DHO1000 User Guide
Page 23
Document Overview
Label Knob Label Knob
Horizontal Scale
Horizontal SCALE
Vertical POSITION
Vertical SCALE
Content Conventions in this Manual
DHO1000 series digital oscilloscope includes the following models. Unless otherwise
specified, this manual takes the 4-channel model DHO1104 as an example to illustrate
the basic operation methods of DHO1000 series.
Model Max. Analog Bandwidth Analog Channels
DHO1072 70 MHz 2
DHO1074 70 MHz 4
Knob
Vertical Position
Knob
Vertical Scale
Knob
2
LEVEL
- -
Multipurpose
Knob 2
Trigger Level Knob
DHO1102 100 MHz 2
DHO1104 100 MHz 4
DHO1202 200 MHz 2
DHO1204 200 MHz 4
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Quick Start
4
Quick Start
4.1 General Inspection
1. Inspect the packaging
If the packaging has been damaged, do not dispose the damaged packaging or
cushioning materials until the shipment has been checked for completeness and
has passed both electrical and mechanical tests.
The consigner or carrier shall be liable for the damage to the instrument resulting
from shipment. RIGOL would not be responsible for free maintenance/rework or
replacement of the instrument.
2. Inspect the instrument
In case of any mechanical damage, missing parts, or failure in passing the electrical
and mechanical tests, contact
3. Check the accessories
Please check the accessories according to the packing lists. If the accessories are
damaged or incomplete, please contact
Recommended Calibration Interval
RIGOL suggests that the instrument should be calibrated every 18 months.
4.2 Appearance and Dimensions
Figure 4.1 Front View
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Quick Start
Figure 4.2 Side View
4.3 To Prepare for Use
4.3.1 Tilting the Oscilloscope for Easier Viewing
Flip out the tabs under the oscilloscope's rear feet to tilt the oscilloscope to stabilize it
for easier operation and viewing. Flip in the tabs for st
using the instrument. Please see the figure below.
orage or transpor
ting when not
Figure 4.3 Flipping in/out Tabs
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4.3.2 Connecting to Power
The power requirements of the oscilloscope are 100-240 V, 50-60 Hz. Please use the
power cor
source, as shown in the figure below.
d provided in the accessories to connect the oscilloscope to the AC power
Quick Start
WARNING
oid electric shock, ensure that the instrument is correctly grounded.
To av
4.3.3 Turn-on Checkout
After the instrument is connected to the power source, press the power switch at
er
the low
up process, the instrument performs a series of self-tests. After the self-test, the
splash screen is displayed.
• Restart: Click or tap
•
-left corner of the front panel to power on the instrument. During the start-
reboot?" is displayed. Click or tap
Shutdown:
Figure 4.4 Connecting to Power
> Restart. Then a prompt message "Ar
OK to restart the instrument.
e you sure to
- Click or tap
shutdown?" is displayed. Click or tap
- Pr
- Pr
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ess the power switch
shutdown?" is display
ess
twice to directly shut down the instrument.
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> Shutdown. Then a prompt message "Ar
OK to shut down the instrument.
and a prompt message "Are you sure to
ed. Click or tap
OK to shut down the instrument.
e you sure to
DHO1000 User Guide
Page 27
Quick Start
- Press for three seconds to directly shut down the instrument.
TIP
You can also click or tap > Utility > Setup and select "Swit
In this way, the instrument powers on once connected to power.
4.3.4 Replacing the Fuse
If you need to replace the fuse, please use the correct fuse (AC 250 V, T3.15 A; 5.2
mm×20 mm) and follow the steps shown below (see
1. Power off the instrument and remove the power cord.
2. Insert a small straight screwdriver into the slot at the power socket and pry out the
fuse holder gently.
3. Remove the fuse.
4. Insert the proper fuse into the fuse holder.
5. Re-insert the fuse holder into the power socket.
ch On" in "Power Status" item.
Figure 4.5
).
Figure 4.5 Replacing the Fuse
WARNING
To av
oid electric shock, please make sure that the instrument is powered off and
disconnected from the power before replacing the fuse. Also, please make sure the fuse is
consistent with the required fuse rating.
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4.3.5 Setting the System Language
This oscilloscope supports multiple languages. You can click or tap > Utility >
Setup > Language to select the syst
em language.
4.3.6 Connecting Probes
RIGOL provides passive probes for DHO1000 series. For specific probe models, please
refer t
o
DHO1000 series Data Sheet
please refer to the corresponding Probe User Guide.
Connect the Passive Probe
1. Connect the BNC terminal of the probe to an analog channel input terminal of the
oscilloscope on the front panel as shown in the figure below.
2. Connect the ground alligator clip or spring of the probe to the circuit ground
terminal, and then connect the probe tip to the circuit point to be tested.
. For detailed technical information of the probes,
Quick Start
Figure 4.6 Connecting the Passive Probe
After you connect the passive probe, check the probe function and probe
compensation adjustment before making measurements. For details, please refer to
Function Inspection
and
Probe Compensation
.
4.3.7 Function Inspection
1. Press the front-panel and a prompt message "Restore default settings?"
is displayed. Click or tap OK to restore the instrument to its factory default
settings.
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Quick Start
2. Connect the ground alligat
in
Figure 4.7
.
or clip of the probe to the "Ground Terminal" as shown
3. Use the probe to connect the input terminal of CH1 and the "Compensation Signal
Output Terminal" of the probe, as shown in
Figure 4.7
.
Figure 4.7 Using the Compensation Signal
4. Set the probe ratio b
ased on the attenuation of the probe, and then click or tap
> Auto.
5. Obser
e the waveform on the display. In normal condition, you should see a
v
square waveform similar to the waveform shown in the figure below.
Figure 4.8 Square Waveform Signal
6. Test the other channels in the same way
. If you see the waveform, but the square
wave is not shaped correctly as shown above, perform the procedure described in
Probe Compensation
. If you do not see the waveform, perform these steps again.
WARNING
oid electric shock when using the probe, please make sure that the insulated wire of
To av
the probe is in good condition. Do not touch the metallic part of the probe when the
probe is connected to high voltage source.
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4.3.8 Probe Compensation
When used for the first time, the oscilloscope probe must be compensated to match
the input characteristics o
compensated or poorly compensated probes can introduce measurement inaccuracy
or errors. The compensation procedure is as follows:
f the oscilloscope channel to which it is connected. A non-
Quick Start
1. Perform step 1, 2, 3, and 4 in
2. Check the displayed waveforms and compare them with waveforms shown in the
figure below.
3. Use the probe compensation adjustment t
the low-frequency compensation adjustment hole on the probe until the displayed
waveform is consistent with the "Perfectly compensated" waveform shown in the
figure above.
4.4 Product Overview
The following content provides a description of the front and rear panels as well as
the user inter
example.
face of the DHO1000 series by taking 4-channel model DHO1104 as an
Function Inspection
Figure 4.9 Probe Compensation
ool provided in the accessories to adjust
.
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Quick Start
4.4.1 Front Panel Overview
15
14
1
2
3
6
5
4
7
8
9
10
11
12
13
Figure 4.10 Front Panel
1. 10.1-inch Capacitive Touch Screen
Displays the waveforms, menu labels, and parameter settings, system state,
prompt messages, and other information.
2. Multipurpose Knobs
- Non-menu operation:
When not operating on the menu, you can r
waveform brightness. When a cursor, decoding, Math waveform, or reference
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otate the knob 1 to adjust the
Page 32
Quick Start
waveform is added on the screen, you can rotate the multipurpose knob to
move the cur
decode result display position (knob 2), adjust the vertical scale (knob 1) and
vertical offset (knob 2) of the math/reference waveform. You can click or tap
Flex Knob on the T
- Automatic: Cursor > (Math/Ref/Decode) > Intensity (default priority).
sor (knob 1 and 2), adjust the decode threshold (knob 1) and
oolbar at the upper-right of the screen to set priority.
- Manual: all non-menu operation items are listed at the lower part of the
Knob menu. You can select one o
knob to adjust.
- Menu operation:
When operating on the menu, you can rotate the multipurpose knob 1/2 to
adjust the value in the menu. When you click or tap an input field and then the
/ icon is displayed in the input field, it indicates that you can use
multipurpose knob 1/2 to set the v
knob is illuminated. In this point, you can rotate the knob to adjust the value or
press the knob to restore the parameter to the default value.
When using the virtual numeric keypad or drop-down list, you can rotate the
knob to navigate through the keypad or drop-down list and press the knob to
select an item.
3. Measure Key
Press
waveform parameters in the menu. For details, please refer to
to access the Measure menu. You can set the source and select the
f them as the current item for multipurpose
alue. The LED indicator of the corresponding
Measurements
Flex
.
4. Cursor Key
Press to enable cursor measurements. The results are displayed in the rightside "Result" bar. Three cursor modes are available: Manual, Track, and XY; wherein,
the XY mode is available only when the XY function is enabled.
5. Analyse Key
Press to access the Analyse menu in which you can access analysis features
including digital voltmet
testing.
6. Touch Lock Key
Press
touch scr
7. Common Tools Keys
once to disable the touch screen function; press it again to enable the
een function.
er (DVM), counter, waveform recording, and pass/fail
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Quick Start
- is the auto scale key. Press this key to enable the auto scale function.
The oscilloscope is automatically configur
adjusting the vertical scale, horizontal timebase, and trigger mode. To set up
the key, please refer to
Auto Config
ed to best display the input signals by
.
-
"RUN" or "STOP". In "RUN" stat
state, this key is illuminated in red.
-
trigger mode to "Single
Click or tap OK in the dialog to r
-
the oscilloscope is in "RUN" mode, it continues to display new wav
8. Quick Action Key
Press
setup, measure all, statistics r
key, please refer to
9. Trigger Controls
is the RUN/STOP key. Press the key to set the oscilloscope's run state to
e, this key is illuminated in green; in "STOP"
is the key for a single acquisition. Press this key to set the oscilloscope's
".
is the default setup key. Press this key and a dialog box is displayed.
estore the oscilloscope's default settings.
is the clear key. Press this key to clear all waveform on the display. If
to perform the selected quick action: print screen, save wave, save
eset, waveform record, or save group. To set up the
Quick Action Settings
.
eforms.
- is the trigger setup key. Press this key to access the Trigger menu. For
details, please refer t
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o
Triggering the Oscilloscope
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.
Page 34
Quick Start
- is the trigger slope setup key. Press this key to select the edge type
(rising edge, falling edge, or either edge). This key is not activ
type is not set to "Edge".
e when the trigger
-
- LEVEL is the trigger level/digital threshold knob. Turn the knob clockwise to
incr
level. Pressing the knob can quickly set the trigger level to the waveform's 50%
peak-to-peak value.
10. Vertical Controls
is the force trigger key. Press this key to force a trigger.
ease the trigger level or turn the knob counterclockwise to decrease the
- Vertical POSITION is the ver
the selected waveform's vertical position to move the waveform up or down on
the display. Press this knob to reset the vertical position to zero.
- Vertical
value of vertical divisions of the graticule in volts/div. Press this knob to toggle
between fine and coarse adjustment of the vertical scale.
-
can add refer
measured waveforms to identify circuit fault.
-
operations include A+B, A-B, A× B, A/B, FF
label.
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SCALE is the ver
is the reference key. Press this key to assess the Ref menu, in which you
ence waveforms in waveform view and compare them with
is the Math key. Press this key to access the Math menu. Math
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tical position knob. Turn this knob to change
tical scale knob. Rotate this knob to modify the
T
, etc. You can also set the Math
DHO1000 User Guide
Page 35
Quick Start
- / / / is the channel key. Depending on the actual
situation, press the k
channel, as described below:
- If the channel is not displayed, you can press the channel key to open the
channel in the waveform view window.
- If the channel is displayed but not selected, you can press the channel key to
select the channel.
- If the channel is both displayed and selected, you can press the channel key
to close its display in the waveform view.
For two-channel models (DHO1072/DHO1102/DHO1202), only two channel
ey to enable (display), select, or disable the corresponding
keys (
11. Hor
izontal Controls
- Horizontal POSITION is the horizontal position knob. Tur
change the horizontal position (trigger position) to move the waveforms
horizontally. Press the knob to reset the horizontal position to default.
and ) are available.
n the knob to
- Horizontal
horizontal time/div setting to compress or expand waveforms of all channels
horizontally. Press this knob to toggle between fine and coarse adjustment of
the horizontal scale.
-
Y
depth, etc.
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is the acquisition setup key. Press this key to access the Horizontal menu.
ou can set the oscilloscope
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SCALE is the horizontal scale knob. Tur
's time base mode, acquisition mode, memory
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n the knob to change the
Page 36
Quick Start
- is the Zoom (delayed sweep) key. Press this key to enable or disable the
Zoom mode.
- is the Navigate key. Press this key to access the Navigation menu. You
can navigate time, sear
Navigation
.
ch events, or segments. For details, please refer to
-
12. Pr
obe Compensation Signal Output Terminal/Ground Terminal
This terminal outputs the probe compensation signal which helps you match a
probe's input capacitance to the oscilloscope channel to which it is connected. For
details, please refer to
13. Analog Channel Input Terminals
Attach probes to these connectors for analog signal inputs.
For two-channel models (DHO1072/DHO1102/DHO1202), only two input terminals
are available.
14. USB HOST Port
This series supports the flash memory USB storage device of FAT32 format and
USB-GPIB module.
- USB storage device: imports or exports data (software update, waveform,
setup, or captured image).
- USB-GPIB module: extends the GPIB interface for RIGOL instruments that
integrates the USB HOST interface but not the GPIB interface.
are the navigation keys.
Probe Compensation
.
15. Power Switch
Press the switch to power on/off the oscilloscope.
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Quick Start
4.4.2 Rear Panel Overview
4
3
2
1
10
Figure 4.11 Rear Panel
1. AUX OUT
- Trigger output:
When the AUX output is set to "TrigOut", the oscilloscope generates a trigger
and outputs a signal that can reflect the current capture rate of the oscilloscope
via this interface. Connect the signal to a waveform display device and measure
the frequency of the signal. The measurement result is the same as the current
capture rate.
5
6
7
8
9
- Pass/Fail:
When the AUX output is set to "PassFail", in the pass/fail test, the instrument
will output a pulse via the [AUX OUT] connector when a passed or failed
waveform is detected during the pass/fail test.
2. EXT TRIG
BNC connector to input external trigger signal for the oscilloscope.
3. 10 MHz REF IN
BNC connector to input external reference clock signal.
4. 10 MHz REF OUT
BNC connector that can output the 10 MHz clock signal generated by the internal
crystal oscillator inside the instrument.
5. HDMI
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Quick Start
You can connect the instrument to an external display that has the HDMI interface
(e.g. monitor or pr
clearly. At this time, you can also view the waveforms on the LCD of the
instrument.
6. USB DEVICE
Connect the instrument to the PC via this interface. Then you can use the PC
software Ultra Scope to send the SCPI commands or use the user-defined
programming to control the instrument.
7. LAN
Connect the instrument to network via this interface. The instrument conforms to
LXI CORE 2011 DEVICE instrument standard. Its test system can be built quickly.
Then you can control the instrument through using Web Control to send the SCPI
commands to control the instrument. When update is available, you can perform
online upgrading for the system software of the instrument via the LAN interface.
ojector) via this interface to better observe the waveform display
8. AC Power Cord Connector
The power requirements of the instrument are 100 V to 240 V, 50 Hz to 60 Hz.
Please use the power cord provided in the accessories to connect the instrument
to the AC power source.
9. Fuse
If you need to replace the fuse, use only the specified fuse.
10. Security Lock Hole
Use a standard PC/laptop lock cable to secure the oscilloscope to a work bench or
other location.
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Quick Start
4.4.3 User Interface Overview
Figure 4.12 User Interface
aveform View
1. W
Displays the measurement waveform window for CH1-CH4. Click or tap
upper-right cor
the configuration menu of the specified function.
Run State Label
2.
Displays the operating status of the instrument.
3. Horizontal Timebase Label
Displays the current horizontal time base. Click or tap this label to enter the
horizontal setting menu.
4. Sample Rate & Memory Depth Label
Displays the current sample rate and memory depth. Click or tap this label to enter
the horizontal setting menu.
5. Horizontal Delay Label
ner of the window to close the window; click or tap
at the
to enter
Displays the current horizontal position. Click or tap this label to enter the
horizontal setting menu.
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6. Trigger Label
Quick Start
- Displays the trigger information o
trigger level, trigger mode, and etc.
- Click or tap the trigger label, then the trigger setting window is displayed. You
can set the parameters for the trigger.
7. Function Toolbar
Provides
k
eys in the function navigation menu.
8. Result Sidebar
Displays the measurement results and statistics of various functions. Click or tap
9. Notification Ar
Displays USB icon, LAN icon, the sound icon, remote control icon as well as data
and time. You can click or tap this area to open the "Utility" menu.
- USB storage device icon: When a USB storage device is detected,
STOP/RUN, XY, Default, Flex Knob, Navigate keys and some function
at the lower-right corner of the screen to open or close the "Result" sidebar.
ea
f the system, including the trigger type,
will be
display
- L
- Sound icon: In the "Utility" menu, click or tap Setup > Beeper to enable or
disable the sound. When on, will be displayed; when off, will be
displayed. Y
- Remote control icon: When you use Web Control to control the instrument
remotely,
- Date and time: displays the system date and time. For how to set the data and
time, please refer to
10. Split-screen Display
If you enable multiple functions, multiple windows can be displayed on the screen
at one time.
11. Math Labels
Displays the on/off state, operation type, and vertical scale.
ed.
AN icon: When the LAN interface is successfully connected,
ou can simply click or tap the icon to enable or disable the sound.
will be displayed.
Display Date and Time
.
is displayed.
12.
Channel Labels
- Display the on/off status of CH1~CH4.
- Display the channel coupling mode.
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Quick Start
- Display the ver
- Display the vertical offset.
NOTE
For two-channel models (
available.
13. Function Navigation Icon
Click or tap the icon to open the function navigation menu in which y
access the specified function menu by clicking or tapping the corresponding
function key.
tical scale.
DHO1072/DHO1102/DHO1202), only two channel labels are
4.5 Touch Screen Gestures
The instrument's large capacitive touch screen makes operation and configuration
easy and flexible. The highly sensitive user int
waveform display capability, bringing an extraordinary user experience. The actions
supported by the touch screen controls include tapping, pinching&stretching, as well
as dragging.
ou can
erface designed for touch has a strong
4.5.1 Tap
Use one finger to tap the symbol or characters on the screen slightly, as shown in
Figure 4.13
• Tap the menu displayed on the screen to operate on the menu.
• Tap the function navigation icon at the lower-left corner of the touch screen to
• Tap the displayed numeric keypad to set the parameters.
• Tap the virtual keypad to set the filename.
• Tap the close button at the upper-right corner of the message box to close the
• Tap other windows on the touch screen and operate on the windows.
. With the Tap gesture, you can perform the following operations:
enable the function navigation.
prompt window.
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4.5.2 Pinch&Stretch
Pinch or stretch two points on the screen with two fingers to zoom in or out the
wavefor
fingers; to zoom out the waveform, first stretch the two fingers, and then pinch the
fingers together, as shown in the figure below. With the pinch&stretch gesture, you
can perform the following operation:
m. To zoom in the waveform, first pinch the two fingers and then stretch the
Quick Start
Figure 4.13 Tap Gesture
• Pinching&stretching in the horizontal direction can adjust the horizontal time
base of the waveform.
• Pinching&stretching in the vertical direction can adjust the vertical scale of the
waveform.
4.5.3 Drag
Figure 4.14 Pinch&Stretch Gesture
Use one finger to select the object, and then drag the object to a destination place, as
shown in the figure below
operation:
• Drag the waveform to change its position or scale.
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. With the drag gesture, you can perform the following
DHO1000 User Guide
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Quick Start
• Drag the window controls t
keypad).
• Drag the cursor to move the cursor.
• Drag the trigger cursor to change the trigger level.
• In multi-window display, drag one of the displayed windows to change its
position on the display.
o change the position of the window (e.g. numeric
Figure 4.15 Drag Gesture
4.6 Parameter Setting Method
For this instrument, you can use the knobs and touch screen to set parameters. The
common paramet
• Method 1: Some parameters can be adjusted by rotating the front-panel knobs.
• Method 2: Click or tap the input field of a specified parameter, then a virtual
keypad is displayed. Complete the parameter setting with the keypad.
Input Chinese and English Characters
When naming a label, this instrument supports Chinese/English input method. The
following part introduces how to input Chinese and English characters with the
Chinese/English input method.
• Input English Characters
er setting methods are as follows:
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Quick Start
Figure 4.16 English Input Interface
1. Select English input method
First check the input method type. If it shows "En/中", then go to Step 2; if it
shows "中/En", click or tap the input method switchover key to switch to "En/
中" (English input method).
2. Clear the name input area
If there is no character in the "Name Input Area", please go to the next step. If
there are characters in the "Name Input Area", click or tap the Backspace key
to delete all the characters from the "Name Input Area" in order.
3. Input the upper-case letter
If you want to input an upper-case letter, first use the Caps key to switch
between the upper-case and lower-case mode. If the Caps key is selected,
input the upper-case letter with the virtual keypad. If not, first click or tap the
Caps key to ensure it is selected, then input the upper-case letter. All the input
letters will be displayed in the "Name Input Area".
4. Input the lower-case letter
Refer to the operation specified in the previous step. If the Caps key is not
selected, directly input the lower-case letter.
5. Input numbers or symbols
If the letter keypad is displayed, you need to click or tap the numeric
switchover key to switch to the numeric keypad, and input numbers or
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Quick Start
symbols with the numeric keypad. All the input letters will be displayed in the
"Name Input Area".
6. Modif
7. Confirm the input
• Input Chinese Characters
y or delete the unwanted characters that have been input
During the name input process, you can modify or delete the unwanted
character if necessary. To delete the characters that have been input, click or
tap the Backspace key in the virtual keypad to delete the characters. To
modify the characters that have been input, delete the unwanted characters
first and then input the new characters.
You can directly move the cursor to the character to be modified or deleted,
delete the desired character or input the new characters after deleting the
unwanted character.
After completing the input operation, click or tap "OK".
Figure 4.17 Chinese Input Interface
1. Select Chinese input method
First check the input method type. If it shows "中
shows "En/中", click or tap the input method switchover key to switch to
"中/En" (Chinese input method).
2. Clear the name input area
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/En", then go to Step 2; if it
Page 46
Quick Start
If there is no character in the "Name Input Area", please go to the next step. If
there ar
to delete all the characters from the "Name Input Area" in order.
If there are characters in the "Pinyin Input Area", when you delete characters
from the name input area, the characters in the Pinyin input area will be
deleted first.
3. Input Chinese characters
Click or tap the characters in the virtual keypad to input Pinyin into the input
area, then the characters to be selected will be displayed in the Chinese
character selection area. Slide to view more Chinese characters for you to
choose. Select the desired Chinese character, and then the selected character
will be displayed in the input area.
4. Modify or delete the unwanted characters that have been input
During the name input process, you can modify or delete the unwanted
character if necessary. To delete the characters that have been input, click or
tap the Backspace key in the virtual keypad to delete the characters. To
modify the characters that have been input, delete the unwanted characters
first and then input the new characters.
e characters in the "Name Input Area", click or tap the Backspace key
5. Confirm the input
After completing the input operation, click or tap "OK".
Input a String
When naming a file or folder, you need to input a string with the keypad.
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Quick Start
Figure 4.18 String Keypad
1. Clear the name input area
If ther
e is no character in the "Name Input Area", please go to the next step. If
there are characters in the "Name Input Area", click or tap the Backspace key to
delete all the characters from the "Name Input Area" in order.
2. Input the upper-case letter
If you want to input an upper-case letter, first use the Caps key to switch between
the upper-case and lower-case mode. If the Caps key is selected, input the uppercase letter with the virtual keypad. If not, first click or tap the Caps key to ensure it
is selected, then input the upper-case letter. All the input letters will be displayed
in the "Name Input Area".
3. Input the lower-case letter
Refer to the operation specified in the previous step. If the Caps key is not
selected, directly input the lower-case letter.
4. Input numbers or symbols
If the letter keypad is displayed, you need to click or tap the numeric switchover
key to switch to the numeric keypad, and input numbers or symbols with the
numeric keypad. All the input letters will be displayed in the "Name Input Area".
5. Modify or delete the unwanted characters that have been input
During the name input process, you can modify or delete the unwanted character
if necessary. To delete the characters that have been entered, click or tap the
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Quick Start
Backspace key in the virtual keypad. To modify the characters that have been input,
delete the unwant
You can directly move the cursor to the character to be modified or deleted, delete
the desired character or input the new characters after deleting the unwanted
character.
6. Confirm the input
After completing the input operation, click or tap "OK".
Input a Value
When setting or modifying a parameter, you can input an appropriate value with the
numeric keypad.
• Input a value or unit in the keypad using the touch screen.
• You can also rotate the multipurpose knob (1 or 2) to move the cursor and select
the desired value and unit. Then press the knob to input the selected value or
unit.
ed characters first and then input the new characters.
Figure 4.19 Numeric Keypad
er you input all the values and select the desired units, the numeric keypad is
Aft
turned off automatically. This indicates that you have completed parameter setting.
Besides, after you have input the values, you can also press "OK" directly to close the
numeric keypad. At this time, the unit of the parameter is the default unit. In the
numeric keypad, you can perform the following operations:
• Delete the parameter value that has been input;
• Set the parameter value to a maximum or minimum value;
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Quick Start
• Set the paramet
• Clear the parameter input field.
er to a default value.
4.7 Using the Security Lock
If necessary, you can lock the instrument to a fixed location by using the security lock
(please purchase it by y
The method is as follows: align the lock with the lock hole and plug it into the lock
hole vertically, turn the key clockwise to lock the oscilloscope, and then pull the key
out.
ourself), as shown in the figure below.
Figure 4.20 To Use the Security Lock
NOTE
Please do not insert other objects int
instrument.
o the security lock hole to avoid damaging the
4.8 Accessing the Built-in Help System
The built-in help system provides instructions for all the front-panel keys and their
corresponding menu k
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eys. Click or tap
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> Help to access the "Help" menu.
Page 50
Quick Start
After that, you can get its help information by clicking on or tapping the link for the
desired item.
4.9
Viewing the Option Information and Install the
Option
This series oscilloscope provides multiple options to fulfill your measurement
requirements. If you need any of these options, order them according to the Order
No. available in "
according to this section. Besides, you can also view the option installation status or
activate the newly purchased option.
View the installed option
The instrument is installed with the trial versions of the options before leaving factory.
The trial time starts from the time when you power on the instrument for the first
time, and the trial time is about 2,160 minutes. Perform the following operations to
view the name of the installed option and option installation status.
• Click or tap the function navigation icon
screen, and then select Utility to enter the utility function menu.
• Click or tap Options to view the option list.
Appendix A: Options and Accessories
", and then install the options
at the lower-left corner of the
Install the option
The option license is a string of fix
format, with the filename extension ".lic". After you purchase an option, you will
obtain a key (used for obtaining desired the option license code). Then, you can
install the option according to the following steps.
1. Obtain an option license
a. Log in to the RIGOL official website click SERVICE CENTRE > License
Activation to enter the "Registered product license code"
b. In the software license registration interface, input the correct key, serial
number (click or tap > Utility
instrument), and verification code. Then click Generate to obtain the option
license.
2. Install the option
Sending the SCPI commands (:SYSTem:OPTion:INSTall <license>) to install options
is supported. For details, refer to
ed characters. The license file should be in specific
interface.
>
About to obtain the serial number of the
DHO1000 Programming Guide
.
• During the installation process, you are not allowed to power off the
instrument.
• Sending the SCPI commands (:SYSTem:OPTion:INSTall <license>) to install
options is
inputting the license
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supported. Installing options by using the USB storage device or
code manually is not supported.
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Page 51
Vertical System
5
Vertical System
This series oscilloscope provides 2 analog input channels (CH1-CH2) for DHO1072/
DHO1102/
DHO1104/DHO1204, and each channel is equipped with an independent vertical
control system. The setting methods for their vertical systems are the same. This
chapter takes CH1 of a four-channel model as an example to introduce the setting
method for the vertical system.
When a channel is selected, click or tap the channel status label at the bottom of the
screen. Then the menu as shown in the figure below is displayed.
DHO1202 and 4 analog input channels (CH1-CH4) for DHO1074/
Figure 5.1 Vertical Menu
5.1 To Enable or Disable the Analog Channel
Enable the Analog Channel
When a signal is connected t
• Click or tap the channel status label at the bottom of the screen to enable the
channel.
• Press the front-panel key
key is illuminat
• In
When CH1 is activated, its status label at the bottom of the screen is as shown in the
figure below.
Vertical System
swit
ch to turn CH1 on or off.
ed.
o CH1, you can enable the channel in the following ways.
to enable the channel, and the backlight of this
menu, select the CH1 tab. Click or tap the
Display on/off
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Vertical System
The information displayed in the channel status label is related to the current channel
setting (irrelev
on, you can modify the parameters such as the vertical scale, horizontal time base,
trigger mode, and trigger level according to the input signal for easy observation and
measurement of the waveform.
When CH1 is enabled but not activated, its status label is as shown in the following
figure.
ant with the on/off status of the channel). After the channel is turned
Click or tap the channel status label at the bottom of the screen or press the front-
panel k
activate it.
Disable the analog channel
You can disable the analog channel in the following ways.
• If CH1 has been enabled and activated, you can press
• If CH1 has been enabled but not activated, first activate the channel. Then press
• In
• In addition, you can slide down the channel label to disable the channel.
ey
to disable it dir
bottom of the screen to open the Vertical menu and then click or tap the label
again to disable the channel.
the front-panel key
Vertical System
to activate CH1. You can also select the CH1 tab in Ver
ectly. You can also click or tap the channel status label at the
or use the channel status label to disable CH1.
menu, set Display to OFF to disable CH1.
tical menu to
on the front panel
If CH1 is disabled, its status label is as shown in the figure below.
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5.2 To Adjust the Vertical Scale
Vertical scale indicates the voltage value per grid in the vertical axis of the screen. It is
of
ten expressed in V/div. Adjusting the vertical scale increases or decreases the
display amplitude of the waveform. The scale information of the channel status label
at the bottom of the screen would change accordingly.
The adjustable range of the vertical scale is related to the current probe ratio. By
default, the probe ratio is 1X. In this case, the adjustable range of the vertical scale is
500 μV/div to 10 V/div.
When CH1 is turned on and activated, you can adjust the vertical scale in the
following ways.
Vertical System
• Rotate the Vertical SCALE knob to adjust the v
reduce the scale and counterclockwise to increase).
• Enable the touch screen function, and then adjust the vertical scale with the
pinch & stretch gesture on the touch screen. For details, refer to descriptions in
Pinch&Stretch
• In the Vertical menu, click or tap the icon at the right side of the input field of
Scale to increase or decrease the scale value or use the corresponding
multipurpose knob on the front panel to set the value. You can also click or tap
the input field to input a specific value with the displayed numeric keypad.
In the Vertical menu, click or tap the Fine on/o
adjustment) and OFF (co
.
ff switch to toggle between
arse adjustment). The default setting is OFF. You can also
ertical scale (clockwise to
ON (fine
ess the Vertical
pr
adjustment".
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SCALE knob t
oggle between "coarse adjustment" and "fine
o t
DHO1000 User Guide
Page 54
Vertical System
• Fine adjustment: Use the icons at the right side of Scale or rotate the knob to
fur
ther adjust the vertical scale within a relatively smaller range to improve
vertical resolution. If the amplitude of the input waveform is a little bit greater
than the full scale under the current scale but a little bit lower if the next scale is
used, fine adjustment can be used to improve the amplitude of waveform
display to view signal details.
• Coarse adjustment: Use the icons at the right side of
adjust the v
mV/div, 5 mV/div, 10 mV/div...10 V/div.
ertical scale in a 1-2-5 step sequence, i.e. 500 μV/div, 1 mV/div, 2
5.3 To Adjust the Vertical Offset
Vertical offset indicates the offset of the signal ground level position of the waveform
from the v
amplitude unit (refer to
moves the corresponding channel's waveform up and down. The vertical offset
information (as shown in the following figure) in the channel status label at the
bottom of the screen will change accordingly.
The adjustable range of the vertical offset is related to the current probe ratio and
ver
tical scale.
ertical center of the display. Its unit is consistent with the currently selected
To Specify the Amplitude Unit
Scale or rotate the knob to
). Adjusting the vertical offset
When CH1 is turned on and activated, you can adjust the vertical offset in the
following ways.
• Rotate the Vertical
adjust the vertical offset within the adjustable range. Rotate this knob clockwise
to increase the vertical offset or rotate it counterclockwise to reduce the vertical
offset. Pressing the knob can quickly reset the vertical offset (set the vertical
offset to 0).
• Enable the touch screen function, and then adjust the vertical offset with the
drag gesture. For details, refer to
• In
Vertical menu, click or tap the Up/Down arrow icon at the right side o
input field of
corr
esponding multipurpose knob to set the value. You can also click or tap the
input field to input a specific value with the displayed numeric keypad.
Offset to increase or decrease the offset value or use the
POSITION knob at the right section of the fr
Drag
.
ont panel to
f the
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5.4 To Specify Channel Coupling
You can remove unwanted signals by setting the coupling mode. For example, the
signal under t
est is a squar
e waveform with DC offset.
Vertical System
Click or tap the channel status label at the bottom of the screen. Then the
menu is display
mode.
• When the coupling mode is "DC", both the DC and A
under test can pass the channel.
• When the coupling mode is "AC", the DC components of the signal under test
are blocked.
• When the coupling mode is "GND", the DC and AC components of the signal
under test are blocked.
After a coupling mode is selected, it is indicated in the channel status label at the
bottom of the screen, as shown in the figure below.
ed. Click or tap the
Coupling dr
op-down butt
C components o
on to select the coupling
Vertical
f the signal
TIP
When the input impedance is set to "50
force. The
Coupling menu item is gray
Ω", the channel coupling is set to DC coupling by
ed out and cannot be modified.
5.5 To Specify Bandwidth Limit
This series oscilloscope supports the bandwidth limit function. Setting the bandwidth
limit can reduce the noises in the display
test is a pulse with high frequency oscillation.
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ed waveforms. For example, the signal under
DHO1000 User Guide
Page 56
Vertical System
Click or tap the channel status label at the bottom of the screen, and then the
Vertical menu is displayed. Click or tap the BW Limit drop-down button to select the
specified bandwidth. When the bandwidth limit is enabled, the specific bandwidth
limit value will be displayed in the channel status label at the bottom of the screen, as
shown in the figure below.
• When the bandwidth limit is tur
signal under test can pass the channel.
• When the bandwidth limit is turned on, the high frequency components found in
the signal under test that are greater than the limit are attenuated. DHO1000
series oscilloscope supports 20 MHz bandwidth limit.
TIP
Bandwidth limit can not only reduce the noise, but also can att
frequency components of the signal.
ned off, the high frequency components of the
5.6 To Specify Input Impedance
This series oscilloscope provides 1 MΩ input impedance mode. In this mode, the
input impedance of the oscilloscope is v
circuit under test can be ignored.
ery high, and the current flowed from the
5.7 To Invert a Waveform
enuate or eliminate the high
Click or tap the channel status label at the bottom of the screen, and then the
Vertical menu is displayed. Then click or tap the Invert on/off swit
disable the waveform invert function.
When "ON" is selected, the channel label is as shown in the figure below.
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ch to enable or
Page 57
Vertical System
When the Invert function is disabled, the waveform is displayed normally; when
enabled, the voltage v
alues of the displayed waveform are inverted, as shown in the
figure below. Inverting a waveform also changes the result of math function,
waveform measurement, etc.
"Invert" Off
"Invert" Off
"Invert" On
"Invert" On
TIP
When the Inver
trigger) edge or polarity will be changed.
t function is turned on, the trigger (e.g. Edge trigger, Pulse trigger, or Slope
5.8 To Set Probe
The analog channel of this oscilloscope supports passive probes. For detailed
technical infor
Guide.
Click or tap the channel status label at the bottom of the screen. Then the menu
Vertical is displayed. Then click or tap Probe to enter the Probe setting menu, as
shown in the figure below
mation of the probes, please refer to the corresponding Probe User
Figure 5.2 Waveform Invert On/Off
.
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Vertical System
Figure 5.3 Probe Setting Menu
Probe Ratio
The oscilloscope allows y
accurate measurement results, you must set the probe ratio properly. By default, the
probe ratio is 1X.
The probe ratio values available are as shown in the following table.
Table 5.1 Probe Ratio
Menu
0.001X
0.002X
0.005X
ou to set the probe attenuation manually. To obtain the
Attenuation
(display amplitude of the signal: actual
amplitude of the signal)
0.001:1
0.002:1
0.005:1
0.01X
0.02X
0.05X
0.1X
0.2X
0.5X
1X (default)
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0.01:1
0.02:1
0.05:1
0.1:1
0.2:1
0.5:1
1:1
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Page 59
Attenuation
Vertical System
Menu
2X
5X
10X
20X
50X
100X
200X
500X
1000X
2000X
5000X
10000X
(display amplitude of the signal: actual
amplitude o
f the signal)
2:1
5:1
10:1
20:1
50:1
100:1
200:1
500:1
1000:1
2000:1
5000:1
10000:1
20000X
50000X
20000:1
50000:1
TIP
The oscilloscope auto-recognizes certain probes with a fixed attenuation ratio. After that, the
probe ratio will also be auto recognized to save you from configuring it manually.
Skew
The difference in the delays betw
een the probes, known as skew, can cause great
cable-delay errors in measurement results. To eliminate this problem, this series
oscilloscope provides the deskew function. Click or tap the
delay time with the pop-up numeric k
eypad. You can also use the corresponding
Skew input field to set the
numeric keypad to set the value. The value ranges from -100.00 ns to 100.00 ns, and
the default is 0.00 s.
Go Back to the Vertical Menu
In the
Probe setting menu, click or tap Vertical to go back to the Vertical menu.
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Vertical System
5.9 To Specify the Amplitude Unit
Click or tap the channel status label at the bottom of the screen, and then the
Vertical menu is displayed. Click or tap the Unit drop-down button to select W, A, V,
or U. The default unit is V.
Changing the amplitude unit also changes the units of the functions related to the
channel accor
dingly
.
5.10 To Adjust Bias
When you use an oscilloscope to make actual measurements, a small offset that arises
fr
om the t
may occur on the zero-cross voltage of the channel, which will affect the
measurement results of the vertical parameters. This series oscilloscope allows you to
set an offset calibration voltage for calibrating the zero point of the corresponding
channel so as to improve the accuracy of the measurement results.
emperature drift of the component or external environment disturbance
Click or tap the Up/Down arrow icon at the right side of the input field of
incr
ease or decrease the bias value. You can also click or tap the input field to set the
value with the pop-up numeric keypad. You can also use the corresponding
multipurpose knob to set the value.
The range of bias is related to the input impedance and the vertical scale.
TIP
If the zero-cr
adjustable null range, please perform self-calibration for the instrument to ensure the
measurement accuracy. For details, please refer to
oss voltage of the channel has a larger amplitude offset that exceeds the
5.11 To Specify the Skew
SelfCal
o
Bias t
.
When using an oscilloscope for actual measurement, the transmission delay of the
probe cable may bring r
allows you to set a delay time for calibrating the zero offset of the corresponding
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elatively greater errors (zero offset). This series oscilloscope
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Page 61
Vertical System
channel. Zero offset is defined as the offset of the crossing point of the waveform and
trigger level line r
elative to trigger position, as shown in the figure below.
Figure 5.4 Zero Offset
In the "Ver
channel skew time. The available range is from -100 ns to 100 ns, and the default is
0.00 s.
tical" menu, click or tap the
Ch-Ch Skew input field to set the channel-t
5.12 To Turn the Channel Label Display On/Off
The instrument uses the channel number to mark the corresponding channel by
default. For ease of use, y
Click or tap the channel status label at the bottom o
menu is displayed. Click or tap the Label on/off swit
off. You can also click or tap the label input field to input a specific name for the
channel label with the pop-up keypad.
ou can also set a label for each channel. For example,
f the screen. Then the
ch to turn the label display on or
o-
.
Vertical
For how to use the keypad, please refer to descriptions in
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Parameter Setting Method
DHO1000 User Guide
.
Page 62
Horizontal System
6
Horizontal System
You can access the Horizontal menu in the following ways.
• Press the fr
• Click or tap the channel status label at the bottom o
Vertical menu is displayed. Click or tap the Acquisition butt
Horizontal menu.
• Click or tap the horizontal time base label ("H" icon), acquisition label ("A" icon),
or horizontal position label ("D" icon) at the t
Horizontal menu.
ont-panel
key to enter the Horizontal menu.
f the screen. Then the
on to enter the
op of the screen to enter the
Figure 6.1 Horizontal Menu
6.1 To Adjust the Horizontal Time Base
Horizontal time base, also called the horizontal scale, refers to the time of each grid in
the horizontal direction o
horizontal time base is from 2.00 ns/div to 1.00 ks/div.
While you change the horizontal time base, the displayed waveforms of all channels
are expanded or compressed horizontally relative to the selected time reference
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f the screen. It is usually expressed in s/div. The range of the
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Horizontal System
(
Horizontal Expansion Reference
base label ("H" icon) will change accordingly, as shown in the figure below.
You can adjust the horizontal time base in the following ways.
). The horizontal time base in the horizontal time
• R
• Enable the touch screen function, and then adjust the horizontal time base with
• In the
In the Horizontal menu, you can click or tap the Vernier on/off switch to toggle
betw
front-panel Horizontal
"fine adjustment".
e the front-panel Horizontal
otat
b
ase (clockwise to reduce the scale and counterclockwise to increase).
the Pinch&Stretch gesture. For details, refer to
Horizontal menu, click or tap the icon at the right side o
Scale t
multipurpose knob t
input a specific value with the displayed numeric keypad.
een ON (fine adjustment) and OFF (coarse adjustment). You can also press the
o increase or decrease the horizontal time base or use the corresponding
o set the value. You can also click or tap the input field to
SCALE knob to t
SCALE
oggle between "coarse adjustment" and
knob to adjust the horizontal time
Pinch&Stretch
.
f the input field o
f
• Coarse adjustment: Click or tap the icons at the right side of the input field of
Scale to adjust the horizontal time base of the waveforms of all channels in a
1-2-5 st
• Fine adjustment: Click or tap the icon at the right side of the input field of
to adjust the horizontal time b
step within the adjustable range.
ep sequence within the adjustable range.
Scale
ase of the waveforms of all channels at a smaller
6.2 To Adjust the Horizontal Position
Horizontal position, also called trigger position, refers to the trigger point position of
the waveforms of all channels in the horizontal direction relative to the center of the
display. When the waveform trigger point is at the left (right) side of the center, the
horizontal position is a positive (negative) value.
Changing the horizontal position moves the waveform trigger points and the
displayed waveforms of all channels horizontally. The horizontal position displayed in
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Horizontal System
the horizontal position label ("D" icon) changes accordingly, as shown in the figure
below.
You can adjust the horizontal position in the following ways.
• R
• Enable the touch screen function, and then adjust the horizontal position with
otat
e the Horizontal
to adjust the horizontal position within the adjustable range. Rotate this knob
clockwise to reduce the horizontal position or counterclockwise to increase the
horizontal position. Pressing the knob can quickly reset the horizontal position
(set the horizontal position to 0).
POSITION knob at the right section of the fr
ont panel
the drag gesture. For details, refer to
• In the "Horizontal" menu, use the corresponding multipurpose knob to set the
horizontal position or use the icons at the right side of the input field of
to incr
or tap the
keypad.
ease or decrease the value, as shown in the figure below. You can also click
Position input field t
Drag
.
o input a specific v
6.3 Zoom Mode (Delayed Sweep)
Zoom (delayed sweep mode) can be used to horizontally expand a length of
wavefor
on/off swit
you can set the scale and position in Zoom mode.
m to view waveform details. In the
ch to enable or disable the delayed sweep function. When it is enabled,
Horizontal menu, click or tap the Zoom
Position
alue with the pop-up numeric
• Zoomed Scale: R
the right of the
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otate the corresponding multipurpose knob or use the icons at
Scale input field to incr
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ease or decrease the time base for the
Page 65
Horizontal System
Zoom window. You can also click or tap the input field to input the specific value
directly via the pop-up numeric keypad.
•
Zoomed Position: Rotate the corresponding multipurpose knob or use the icons
at the right of the
the Zoom window
Position input field to increase or decrease the position for
. You can also click or tap the input field to input the specific
value directly via the pop-up numeric keypad.
When the Zoom mode is enabled, the display divides in half, as shown in the figure
below.
Figure 6.2 Zoom Mode
• Waveform before expansion:
The upper portion of the display that is not covered by subtransparent gray
shows the normal display of the waveform. Its horizontal time base (called the
main time base) is indicated in the label at the upper-left corner of the display.
You can move the area left and right by adjusting the horizontal position and
increase or decrease the size of the area by adjusting the horizontal scale.
• Waveform after expansion:
The lower portion shows the horizontally expanded version of the normal
waveform display. Its horizontal time base (called the zoomed time base) is
displayed in the middle. Compared with the main time base, the zoomed time
base has higher horizontal resolution.
TIP
The zoomed time base should be smaller than or equal to the main time base.
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Acquisition System
7
Acquisition System
The "Horizontal" menu allows you to configure the instrument's acquisition system.
Figure 7.1 Horizontal Menu
7.1 Acquisition Mode
The acquisition mode is used to determine how the waveform points are calculated
from the sample points. In the Horizontal menu, click or tap the desired acquisition
mode for the Acquisition item. This oscilloscope pr
Normal (default), Average, Peak, High Res, and UltraAcquire. The selected acquisition
mode is indicated in the acquisition label ("A" icon) at the top of the screen.
Normal
In Normal acquisition mode, the oscilloscope samples the signal at a fixed time
erval to rebuild the waveform. This mode produces the best display for most
int
waveforms.
Average
In this mode, the oscilloscope averages the waveforms from multiple acquisitions to
reduce the random noise of the input signal and increase the vertical resolution. A
greater number of averages lowers the noise and increases the vertical resolution. On
the other hand, the higher the number of averages, the slower the response of the
displayed waveform to waveform changes.
ovides five acquisition modes:
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Acquisition System
When you select "Average" mode, click or tap the Averages input field to set the
number o
multipurpose knob to set the value. Its range is from 2 (default) to 65,536.
TIP
The number of averages must be the Nth power of 2. When it is not in N power-of-2
increments, a prompt message "Truncation average error" is displayed. At this time, a value
that is smaller than the one you input and the closest to N power-of-2 increments will be input
automatically.
Peak
f averages with the pop-up numeric keypad or use the corresponding
In this mode, the oscilloscope acquires the maximum and minimum v
alues of the
signal within the acquisition interval to get the signal envelope or capture narrow
pulses that might be lost. This mode prevents signal aliasing at the expense of
exaggerating the noise.
In this mode, the minimum pulse width detected is the sample period.
High Resolution
This mode uses a kind of ultra-sample technique to average sequential sample points
to reduce the random noise on the input signal and generate much smoother
waveforms on the screen. This is generally used when the sample rate of the digitizer
is higher than the storage rate in acquisition memory.
When you select "High Res" mode, click or tap the
bits drop-down button to select
14 (default) or 16. The bandwidth of the selected bit is displayed behind the box.
TIP
• The averaging modes o
"Multi-sample Average" and the latter uses "Single Sample Average".
• In "High Res" mode, the oscilloscope improves the measurement accuracy at the cost of
bandwidth. Each time the sample rate changes, the current bandwidth is indicated at the
right side of
bits in the menu.
f the "Average" and "High Res" are different. The former uses
UltraAcquire
UltraAcquire mode is one o
f the fast acquisition modes. It divides the oscilloscope's
memory into segments and fills a memory segment for each individual trigger event.
It provides a much higher waveform capture rate and helps minimize the dead time
between trigger events.
When you select "UltraAcquire" mode, click or tap
maximum number o
number o
f the frames reaches the maximum or the sampling time reaches the
f frames and
Timeout input field to set the timeout. When the
Max Frames input field to set the
timeout, the oscilloscope stops sampling and plots the waveform. Click or tap the
Display mode drop-down butt
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on to select the display mode of the acquired data.
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Acquisition System
• Adjacent: Wav
eform segments are shown in an adjacent way with each segment
shown next to the previous segment in time order. A maximum of 100 frames
can be displayed on the screen at a time in this mode.
• Overlay: All the captured waveform segments are overwritten to display as one
single segment of the waveform. A maximum of 100 frames can be displayed on
the screen at a time in this mode.
• Waterfall: It displays the captured waveform segments in a cascaded display
order. A maximum of 100 frames can be displayed on the screen at a time in this
mode.
• Perspective: The waveform segments are displayed in the ladder-like form, with
each segment being arranged above another with a certain perspective (angle),
moving up like a rising slope. A maximum of 100 frames can be displayed on the
screen at a time in this mode.
• Mosaic: The whole waveform view is divided into several blocks, and each
waveform segment is displayed in each block in sequence. A maximum of 80
frames can be displayed on the screen at a time in this mode.
Figure 7.2 Display Modes
TIP
• The UltraAcquire mode is not av
cursors, decoding, Search, Zoom, Pass/Fail test, waveform recording, reference waveform,
roll mode, slow sweep mode, and XY mode. To switch to the UltraAcquire mode, please
ensure that all of those functions are disabled.
• In UltraAcquire mode, the functions mentioned above (except for roll mode and slow
sweep mode) are disabled. When roll mode or slow sweep mode is enabled, the
acquisition mode is automatically switched to "Normal".
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ailable when any of the following functions is enabled:
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Acquisition System
7.2 Sampling Mode
This oscilloscope only supports the real-time sampling mode. In this mode, the
oscilloscope produces the wav
trigger event. The maximum real-time sample rate of this series is 2 GSa/s. The
current sample rate is displayed in the acquisition label at the top of the screen.
By default, the operating status label at the left top of the screen is illuminated in
green, indicating that the instrument is in real-time sampling, and the
button on the t
oolbar is in green. Click or tap the
eform display from samples collected during one
STOP/RUN
STOP/RUN button or pr
ess the
front-panel
"STOP" in r
panel
can still pan or zoom the wav
ed, and the
key to stop sampling. At this time, the operating status label shows
key turns red. The oscilloscope will maintain its last captured graph. You
7.3 Sample Rate
Sampling is the process of converting an analog signal into digital data at a specified
time inter
rate is the reciprocal of the time interval.
Horizontal menu, the "SaRate
In
sample rate is also indicated in the acquisition label ("A" icon) at the top of the
screen, as shown in the figure below.
val and then storing them sequentially in acquisition memory. The sample
STOP/RUN button tur
eforms by using the horizontal/vertical controls.
" item shows the current sample rate. The current
ns red. Also, the backlight of the front-
The sample rate of the analog channel is related to the instrument model and the
current channel mode. For tw
the oscilloscope provides up to 2 GSa/s real-time sample rate in single channel mode
and 1 GSa/s real-time sample rate in all channels mode. For four-channel models
(DHO1074, DHO1104, and DHO1204), the oscilloscope provides up to 2 GSa/s realtime sample rate in single channel mode, 1 GSa/s real-time sample rate in half
channels mode, and 500 MSa/s real-time sample rate in all channels mode.
• Single channel mode: If any one of the channels is enabled, it is called single
channel mode.
• Half channels mode: For four-channel models, if two of the channels are
enabled, it is called half channels mode.
• All channels mode: For two-channels models, if all two channels are enabled, it
is called all channels mode; for four-channel models, if any three channels or all
four channels are enabled, it is called all channels mode.
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o-channel models (DHO1072, DHO1102, and DHO1202),
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Acquisition System
A sample rate that is too low might have the following effects on the waveform:
• W
• Waveform Aliasing: Aliasing occurs when the sample rate is twice lower than
aveform Distortion: When the sample rate is too low, some waveform details
are lost, and the sample waveform displayed is rather different from the actual
waveform of the signal.
the actual signal frequency (Nyquist Frequency). The frequency of the waveform
reconstructed from the sample data is smaller than the actual signal frequency.
• Waveform Leakage: If the sample rate is t
from the sample data does not represent the original signal correctly.
7.4 Memory Depth
Memory depth refers to the number of points that the oscilloscope can store in a
single trigger acquisition. It reflects the st
DHO1000 series oscilloscope provides up to 50 Mpts memory depth (100 Mpts
optional).
oo low, the waveform reconstructed
orage capability of the acquisition memory.
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Acquisition System
Trigger Point
T
Pre-Sample Delayed Sample
Memory Depth
Figure 7.3 Memory Depth
The following formula shows the relations among memory depth, sample rate, and
horizontal time base:
MDepth ≥ SRate * TSCale * HDivs
•
MDepth
•
SRate
•
TSCale
•
HDivs
Therefore, with the same horizontal time base, a higher memory depth can ensure a
higher sample rate.
Horizontal menu, click or tap the Mem Depth drop-down butt
In
memory depth. The default setting is "10k". The selected memory depth value is
displayed in the acquisition label ("A" icon) at the top of the screen.
indicates the memory depth. The unit is pts.
indicates the sample rate. The unit is Sa/s.
indicates the horizontal time base scale. The unit is s/div.
indicates the number of grids in the horizontal direction. The unit is div.
on to select the
• When only one of the channels is enabled, the memor
Auto, 1 kpts, 10 kpts, 100 kpts, 1 Mpts, 10 Mpts, 25 Mpts, 50 Mpts, and 100 Mpts
(optional).
• When two of the channels are enabled, the memory depths available include
Auto, 1 kpts, 10 kpts, 100 kpts, 1 Mpts, 10 Mpts, 25 Mpts, and 50 Mpts
(optional).
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y depths available include
Page 72
Acquisition System
• When three channels or all four channels ar
channel models), the memory depths available include Auto, 1 kpts, 10 kpts, 100
kpts, 1 Mpts, 10 Mpts, and 25 Mpts (optional).
TIP
• In "Auto
the current sample rate.
• When
depth setting.
• When
Mpts are available for the memory depth setting.
" mode, the oscilloscope selects the memory depth automatically according to
Acquisition Mode
Acquisition Mode
is set to "High Res", "Auto" is not available for the memory
is set to "Average", only 1 kpts, 10 kpts, 100 kpts, 1 Mpts, and 10
e enabled (only available for four-
7.5 Horizontal Expansion Reference
This function allows you to set the position that the waveform on the display is
refer
enced to when it is horizontally expanded or compressed when the horizontal
time base is adjusted. In the
butt
on to select the reference position. Available options include Center (default),
Left, Right, Trigger, and User.
Horizontal menu, click or tap the Expand drop-down
• Center: when the horizontal time base is modified, the waveform will be
expanded or compressed horizontally relative to the center of the display.
• Left: when the horizontal time base is modified, the waveform will be expanded
or compressed horizontally relative to the leftmost position of the display.
• Right: when the horizontal time base is modified, the waveform will be
expanded or compressed horizontally relative to the rightmost position of the
display.
• Trigger: when the horizontal time base is modified, the waveform will be
expanded or compressed horizontally relative to the trigger point.
• User: when the horizontal time base is modified, the waveform displayed will be
expanded or compressed horizontally relative to the user-defined reference
position.
When you select "User", click or tap the
value with the display
default is 0.
ed numeric keypad. Its range is from -500 to 500, and the
User Expansion input field and set the
7.6 Roll Mode
The roll mode causes the waveform to move across the screen from right to left. It
allows you to view the acquired data without waiting for a complete acquisition. In
Horizontal menu, select "Auto" or "OFF" in Roll.
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Acquisition System
• Auto: the Roll mode is enabled. It is automatically enabled when the horizontal
• OFF: the Roll mode is disabled. The oscilloscope operates at slow sweep speeds
TIP
scale is 50 ms/div or slow
er.
when the horizontal scale is 200 ms/div or slower. In slow sweep mode, the
oscilloscope acquires the data to the left of the trigger point and then waits for
trigger. After the trigger occurs, it continues to acquire the data to the right of
the trigger point. When you use this mode to observe low-frequency signals, it is
recommended to set the channel coupling mode (
To Specify Channel Coupling
)
to "DC".
• If the Zoom mode is currently tur
the Zoom mode.
• The following functions are not available when the roll mode is enabled:
To Adjust the Horizontal Position
Zoom Mode (Delayed Sweep), Triggering the Oscilloscope, Protocol Decoding, Pass/Fail
Test, Waveform Recording and Playing, Persistence Time, UltraAcquire, Average, XY
Mode
.
7.7 XY Mode
By default, this series oscilloscope uses the YT mode for waveform display window. In
YT mode, Y-axis indicat
supports the XY display in which both X-axis and Y-axis indicate voltage. The XY
mode converts the oscilloscope from a "Voltage-Time" display to a "Voltage-Voltage"
display using two input channels.
Enable the XY Mode
You can enable the XY display mode in the following ways.
ned on, enabling the roll mode automatically turns off
(available when the oscilloscope run state is STOP),
es the Voltage and X-axis indicates the Time. Besides, it also
• Click or tap the
t
oolbar to enter the
Windows button in the function navigation menu or on the
Add Window menu. In the "Diagram" it
em, click or tap
XY >
Add to enable the XY display mode.
• Click or tap the XY button in the function navigation menu or on the toolbar to
enable the XY display mode.
• In the "Horizontal" menu, tick XY to enable the XY mode.
Configur
Click or tap
e the XY Mode
at the upper-right corner of the XY display window to enter the XY
configuration menu.
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Acquisition System
Figure 7.4 XY Menu
• Sour
ce: Click or tap the drop-down button of "Source X" to select the source
channel of the X-axis in the XY window. Click or tap the drop-down button of
"Source Y" to select the source channel of the Y-axis in the XY window.
In the
Add Window menu, you can also configur
e Source Z. Source Z, as the Zaxis input in the XY display mode, is used to control whether to display the X-Y
waveforms in the XY display mode. This function is called "blanking".
- When "None" is selected for "Source Z", the blanking function is disabled,
and you can only see the X-Y waveforms.
- When you select "CH1-CH4" for "Source Z", the blanking function is
enabled. The Z-axis input from the external connector determines whether
to display the X-Y waveforms. When Z is high (the input level is greater than
0 V), the X-Y waveforms are displayed; when Z is low (the input level is
smaller than 0 V), the waveforms are hidden.
• Grid: Please refer to
To Set the Screen Grid
.
NOTE
Advanced settings ar
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e not available for now. The current settings can produce the best display.
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Page 75
Acquisition System
Phase Deviation Measurement
In this mode, you can use the Lissajous method t
two input signals whose frequencies are the same. The following figure shows the
measurement schematic diagram of phase deviation.
Figure 7.5 Measurement Schematic Diagram of Phase Deviation
o measure the phase deviation of the
According t
channels. The definitions of A, B, C, and D are shown in the figure above. The phase
deviation angle is obtained, that is:
Ɵ=±arcsin(A/B) or ±arcsin(C/D)
If the principal axis of the ellipse is within Quadrant I and III, the phase deviation
angle obtained should be within Quadrant I and IV, namely within (0 to π/2) or (3π/2
to 2π). If the principal axis of the ellipse is within Quadrant II and IV, the phase
deviation angle obtained should be within Quadrant II and III, namely within (π/2 to
π) or (π to 3π/2).
The XY mode can be used to measure the phase deviation occurred when the signal
under test passes through a circuit network. Connect the oscilloscope to the circuit to
monitor the input and output signals of the circuit.
o sinƟ = A/B or C/D, Ɵ is the phase deviation angle between the two
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Page 76
Triggering the Oscilloscope
8
Triggering the Oscilloscope
The trigger system allows you to set specific trigger conditions as required. The
oscilloscope captures a wav
on the screen once a particular trigger condition is met. For a digital oscilloscope, it
samples waveform continuously no matter whether it is stably triggered. Rather, only
stable triggering can produce stable display. The trigger module ensures that every
time base sweep or acquisition starts from the user-defined trigger condition, namely
every sweep is synchronous with the acquisition and the waveforms acquired are
overlapped so as to display the stable waveforms.
You should set the triggers based on the features of the input signal. To quickly
capture your desired waveforms, you need to understand the signal under test. This
oscilloscope provides a variety of trigger types that help you focus on the desired
waveform details.
You can enter the
• Press the fr
• In
Vertical System
menu.
Trigger menu in the following ways.
ont-panel
eform as well as its neighboring part and displays them
key to enter the trigger menu.
menu, click or tap the
Trigger button t
o enter the trigger
• Click or tap the trigger label (as shown in the figure below) at the top of the
screen to enter the trigger menu.
8.1 Trigger Source
In the "Trigger" menu, click or tap the drop-down button of Source t
ed source. Analog channels (CH1-CH4), AC Line, or EXT (external trigger) can be
desir
selected as the trigger source.
Analog channel input
Signals input from analog channels CH1-CH4 can all be used as trigger sources. No
matter whether the channel selected is enabled, the channel can work normally.
AC line input
The trigger signal is obtained from the AC power input of the oscilloscope. AC trigger
is usually used to measure signals relevant to the AC power frequency. For example, it
can stably trigger the waveform output from the transformer of a transformer
substation. It is mainly used in related measurements of the power industry.
o select the
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Triggering the Oscilloscope
External trigger input
The exter
other four channels are acquiring data. The trigger signal (e.g. external clock or signal
of the circuit under test) will be connected to EXT trigger source via the external
trigger input terminal [EXT TRIG] connector. You can set the trigger conditions within
the range of the trigger level (from -8 V to +8 V).
nal trigger source can be used to trigger on the fifth channel while all the
8.2 Trigger Level
Trigger level determines where on the selected edge the trigger point occurs. The
adjustment of the trigger lev
• When the trigger source is CH1-CH4, rotate the front-panel
use the corresponding multipurpose knob (when the trigger menu is opened) t
adjust the trigger level. You can also click or tap the
v
alue with the pop-up numeric keypad. During the adjustment, a trigger level
line (the color of the trigger level line is the same as that of the channel) and a
trigger icon "
with the variation o
level, the trigger level line disappears in about 2 s. The current trigger level is
displayed in the trigger information label at the top of the screen.
el is related to the type of the trigger source.
LEVEL knob or
o
Level input field to set the
" are displayed on the screen, and they move up and down
f the trigger level. When you stopping modifying the trigger
In Runt Trigger, Slope Trigger, and Window trigger, you need to set the upper
and lower limits of the trigger level. Two trigger level icons
displayed at the right section o
• When the trigger source is AC Line, there is no trigger level.
• When the trigger source is EXT, rotate the front-panel
corresponding multipurpose knob (when the trigger menu is opened) t
the trigger level. You can also click or tap the
with the pop-up numeric keypad. The current trigger level is displayed in the
trigger information label at the top of the screen.
For this trigger source, only the variation of the trigger level value is displayed
on the screen during the adjustment of the trigger level, without displaying the
trigger level lines on the screen.
To better trigger the waveforms, for a trigger with a single level, you can directly click
or tap
middle of the waveform. However, for a trigger with two levels (e.g. Slope trigger,
Runt trigger, Window trigger), you need to click or tap
Level B to make the level move within the range of the waveform amplitude.
50% in the menu or press the trigger lev
f the screen.
Level input field to set the v
el knob to make the level move to the
90% for Level A and 10% for
and are
LEVEL knob or use the
o adjust
alue
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8.3 Trigger Mode
The following is the schematic diagram of the acquisition memory. To better
understand the trigger ev
acquisition memory into a pre-trigger and post-trigger buffer.
Figure 8.1 Schematic Diagram of the Acquisition Memory
Triggering the Oscilloscope
ent, you can think of the trigger event as dividing
Trigger Event
Pre-trigger Buffer Post-trigger Buffer
Acquisition Memory
After the oscilloscope starts running, it first fills the pre-trigger buffer. Then, after the
pre-trigger buffer is filled, the oscilloscope starts searching for a trigger. While
searching for the trigger, the data sampled will still be transmitted to the pre-trigger
buffer (the new data will continuously overwrite the previous data). When a trigger is
found, the pre-trigger buffer contains the events that occurred just before the trigger.
Then, the oscilloscope will fill the post-trigger buffer and display the data in the
acquisition memory. If the acquisition is initiated via the front-panel
process r
a single acquisition (you can p
This series provides Auto (default), Normal, and Single trigger modes.
Click or tap the trigger information label (as shown in the figure below) at the top of
the screen or press the front-panel
Sweep
mode is display
(Normal), or S (Single).
epeats; if the acquisition is initiated via the
an and zoom the currently displayed waveform).
key to open the "Trigger" menu. In the
item, you can quickly switch the current trigger mode. The selected trigger
ed in the trigger information label at the top of the screen: A (Auto), N
key, it stops after finishing
key, the
• Auto: In this trigger mode, if the specified trigger conditions are not found,
trigger
on the oscilloscope. This trigger mode can be used when the signal levels are
unknown, when the DC signals should be displayed, or when trigger conditions
occur often enough that forced triggers are unnecessary.
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Triggering the Oscilloscope
• Normal: In this trigger mode, triggers and acquisitions only occur when the
specified trigger conditions ar
signal is at a low repetition rate, when you only want to acquire specific events
specified by the trigger settings, or when you try to stabilize the display by
preventing the oscilloscope from auto-triggering.
• Single: In this trigger mode, a single trigger and acquisition only occur when the
specified trigger conditions are found, and then the oscilloscope stops. This
trigger mode can be used when you need to make a single acquisition of the
specified event and analyze the acquisition result. You can pan and zoom the
currently displayed waveform without subsequent waveform data overwriting
the current waveform. After a single trigger is initiated, the oscilloscope is in
"STOP" state.
Normal and Single trigger modes, you can click or tap the Force button in the
In
e found. This trigger mode can be used when the
trigger menu or pr
ess the front-panel
8.4 Trigger Coupling
Trigger coupling determines what part of the signal is passed to the trigger circuit.
Please distinguish it from channel coupling (
function is available only when the trigger type is Edge and the trigger source is an
analog channel.
In the "Trigger" menu, click or tap the
desired coupling mode (by default, it is DC).
• DC: allows DC and AC components t
• AC: blocks the DC components and attenuates the signals.
• LFR: blocks the DC components and rejects the low-frequency components.
key to force a trigger event.
To Specify Channel Coupling
Coupling drop-down butt
o pass the trigger circuitry.
). This
on to select the
• HFR: rejects the high frequency components.
TIP
When "AC" or "LFR" is select
are displayed. When you adjust the trigger level, you can only see the changes of the trigger
level values in the trigger information label at the top of the screen.
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ed as the coupling mode, no trigger level lines and trigger icons
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Page 80
8.5 Trigger Holdoff
Trigger holdoff can be help stabilize triggering on complex repetitive waveforms that
have multiple edges or other ev
series). Holdoff time is specified as the amount of time that the oscilloscope waits for
re-arming the trigger circuitry after generating a correct trigger. The oscilloscope will
not trigger even if the trigger condition is met during the holdoff time and will only
re-arm the trigger circuitry after the holdoff time expires.
For example, to get a stable trigger on the repetitive pulse burst as shown in the
figure below, set the holdoff time to be greater than t1 but less than t2.
Triggering the Oscilloscope
ents between waveform repetitions (such as pulse
Click or tap the trigger infor
the screen or press the front-panel
tap the input field o
the wav
use the corresponding multipurpose knob to set the value. The adjustable range of
the holdoff time is from 8 ns (default) to 10 s.
eforms are stably triggered) with the pop-up numeric keypad. You can also
f Holdoff t
8.6 Noise Rejection
Noise rejection can reject the high frequency noise in the signal and reduce the
possibility of triggering the oscilloscope by mistak
Figure 8.2 Trigger Holdoff
mation label (as shown in the figur
key to open the "Trigger" menu. Click or
o set the holdoff time (the holdoff to this time when
e.
e below) at the top of
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Triggering the Oscilloscope
Click or tap the trigger information label (as shown in the figure below) or press the
front
-panel
on/off swit
TIP
This function is av
ch to enable or disable the noise rejection function.
ailable only when the trigger sour
8.7 Trigger Type
This series oscilloscope provides the following trigger types.
8.7.1 Edge Trigger
Edge trigger identifies a trigger on the trigger level of the specified edge on the input
signal.
key to open the "Trigger" menu. Click or tap the Noise Reject
ce is set to an analog channel or EXT.
Tr
igger Type
Click or tap the
Type drop-down button to select "Edge".
Figure 8.3 Edge Trigger Setting Menu
Aft
er a trigger type is selected, the current trigger setting information (including the
trigger type, source, and level) is displayed in the trigger information label at the top
of the screen, as shown in the figure below. The information will change based on the
trigger settings.
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Source Selection
Triggering the Oscilloscope
Click or tap Source dr
efer to
r
Trigger Source
op-down button to select CH1-CH4, AC Line, or EXT. For details,
. The selected trigger source is indicated in the trigger
information label at the top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Edge Type
In the
The select
Slope it
em, select which edge of the input signal will trigger the oscilloscope.
ed slope will be indicated in the trigger information label.
• Rising: triggers on the rising edge of the input signal when the voltage level
meets the specified trigger level.
• Falling: triggers on the falling edge of the input signal when the voltage level
meets the specified trigger level.
• Either: triggers on the rising or falling edge of the input signal when the voltage
level meets the preset trigger level.
TIP
When edge trigger is select
edge type.
ou can also press the front-panel
ed, y
key to switch the
Trigger Mode
In
Sweep, select Auto, Nor
descriptions in
Trigger Mode
mal, or Single as the trigger mode. For details, refer to
.
Trigger Parameter Setting
You can refer to
Trigger Coupling, Trigger Holdoff
, and
Noise Rejection
to set the
trigger coupling, trigger holdoff, and noise rejection under this trigger type.
Trigger Level
Click or tap the
Level input field to set the trigger lev
el with the pop-up numeric
keypad. You can also use the front-panel trigger level knob or the corresponding
multipurpose knob to set the trigger level. For details, refer to descriptions in
Level
. The current trigger level is displayed in the trigger information label at the top
Trigger
of the screen.
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Triggering the Oscilloscope
8.7.2 Pulse Width Trigger
Pulse width triggering sets the oscilloscope to trigger on the positive or negative
pulse of a specified width. In this mode, the oscilloscope will trigger when the pulse
width o
In this oscilloscope, positive pulse width is defined as the time difference between the
two crossing points of the trigger level and positive pulse; negative pulse width is
defined as the time difference between the two crossing points of the trigger level
and negative pulse, as shown in the figure below.
f the input signal satisfies the specified pulse width condition.
A
+Width
-Width
A
B
B
Figure 8.4 Positive/Negative Pulse Width
Trigger Type
Click or tap Type drop-down button to select "Pulse".
Trigger Level
Trigger Level
Figure 8.5 Pulse Width Trigger Setting Menu
Aft
er a trigger type is selected, the current trigger setting information (including
trigger type, trigger source, and trigger level) is displayed in the trigger information
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Page 84
Triggering the Oscilloscope
label at the top of the screen, as shown in the figure below. The information will
change based on the trigger settings.
Source Selection
Click or tap Source dr
Source
top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Polarity
In the
polarity ( ).
Tr
Set the trigger condition in the
• When y
• When you select "Positive" for polarity, "<" for trigger condition, the oscilloscope
. The selected trigger source is indicated in the trigger information label at the
Polarity it
igger Condition
ou select "Positive" for polarity, ">" for trigger condition, the oscilloscope
triggers when the positive pulse width of the input signal is greater than the
specified pulse width.
triggers when the positive pulse width of the input signal is smaller than the
specified pulse width.
op-down button to select CH1-CH4. For details, refer to
em, select the desired polarity: positive polarity (
When it
em.
) or negative
Trigger
• When you select "Positive" for polarity, "< >" for trigger condition, the
oscilloscope triggers when the positive pulse width of the input signal is greater
than the specified lower limit of pulse width and smaller than the specified
upper limit of pulse width.
• When you select "Negative" for polarity, ">" for trigger condition, the
oscilloscope triggers when the negative pulse width of the input signal is greater
than the specified pulse width.
• When you select "Negative" for polarity, "<" for trigger condition, the
oscilloscope triggers when the negative pulse width of the input signal is smaller
than the specified pulse width.
• When you select "Negative" for polarity, "< >" for trigger condition, the
oscilloscope triggers when the negative pulse width of the input signal is greater
than the specified lower limit of pulse width and smaller than the specified
upper limit of pulse width.
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Triggering the Oscilloscope
Pulse Width Setting
• In the When menu, when ">" or "<" is selected, click or tap the input field o
Lower or Upper to set the lower limit value or the upper limit value with the
pop-up numeric k
to set the value. The pulse width available is from 1 ns to 10 s.
• In the
and Lower respectively to set the lower limit value and the upper limit value with
the pop-up numeric k
knob to set the values. The lower limit of the pulse width must be smaller than
the upper limit.
Trigger Mode
Sweep, select Auto, Nor
In
descriptions in
Trigger Parameter Setting
You can refer to
noise rejection under this trigger type.
Trigger Level
When menu, when "< >" is selected, click or tap the input field of Upper
Trigger Mode
Trigger Holdoff
eypad. You can also use the corresponding multipurpose knob
eypad. You can also use the corresponding multipurpose
mal, or Single as the trigger mode. For details, refer to
.
and
Noise Rejection
to set the trigger holdoff and
f
Click or tap the
keypad. You can also use the front-panel trigger level knob or the corresponding
multipurpose knob to set the trigger level. For details, refer to descriptions in
Level
. The current trigger level is displayed in the trigger information label at the top
of the screen.
Level input field to set the trigger lev
8.7.3 Slope Trigger
Slope triggering sets the oscilloscope to trigger on the positive or negative slope of
the specified time. This trigger mode is applicable to ramp and triangle wav
In this oscilloscope, positive slope time is defined as the time difference between the
two crossing points of trigger level line A and B with the rising edge; negative slope
time is defined as the time difference between the two crossing points of trigger level
line A and B with the falling edge. See the figure below.
el with the pop-up numeric
Trigger
eforms.
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Triggering the Oscilloscope
igger Type
Tr
Click or tap the
A
Upper Limit of Trigger Level
(Up Level)
B
Positive Slope Time
Figure 8.6 Positive Slope Time/Negative Slope Time
Type drop-down button to select "Slope".
Negative Slope Time
Lower Limit of Trigger Level
(Low
Level)
Figure 8.7 Slope Trigger Setting Menu
t
er a trigger type is selected, the current trigger setting information (including
Af
trigger type, trigger source, and trigger level) is displayed in the trigger information
label at the top of the screen, as shown in the figure below. The information will
change based on the trigger settings.
Source Selection
Click or tap Source drop-down button to select CH1-CH4. For details, refer to
Source
top of the screen.
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. The selected trigger source is indicated in the trigger information label at the
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Trigger
Page 87
Triggering the Oscilloscope
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Edge T
Select the input signal edge (in the
• Rising: trigger
• Falling: triggers on the falling edge of the input signal.
Trigger Condition
Sets the trigger condition in the
• When y
• When you select "Rising" for the edge type, "<" for trigger condition, the
• When you select "Rising" for the edge type, "< >" for trigger condition, the
ype
Slope item) on which the oscilloscope triggers.
s on the rising edge of the input signal.
When item.
ou select "Rising" for the edge type, ">" for trigger condition, the
oscilloscope triggers when the positive slope time of the input signal is greater
than the specified time.
oscilloscope triggers when the positive slope time of the input signal is smaller
than the specified time.
oscilloscope triggers when the positive slope time of the input signal is greater
than the specified lower limit time and smaller than the specified upper limit
time.
• When you select "Falling" for the edge type, ">" for trigger condition, the
oscilloscope triggers when the negative slope time of the input signal is greater
than the specified time.
• When you select "Falling" for the edge type, "<" for trigger condition, the
oscilloscope triggers when the negative slope time of the input signal is smaller
than the specified time.
• When you select "Falling" for the edge type, "< >" for trigger condition, the
oscilloscope triggers when the negative slope time of the input signal is greater
than the specified lower limit time and smaller than the specified upper limit
time.
Slope Time Setting
• In the
input field of
with the pop-up numeric k
set the value. The slope time available is from 1 ns to 10 s.
• In the
field of
limit v
When item, when ">
Lower or Upper to set the lower limit value or the upper limit value
When item, when "< >
Upper and Lower respectively to set the upper limit value and the lower
alue with the pop-up numeric keypad. You can also use the corresponding
" or "<" is set to trigger conditions, click or tap the
eypad. You can also use the corresponding knob to
" is set to trigger conditions, click or tap the input
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Triggering the Oscilloscope
knob to set the values. The lower slope time limit must be smaller than the
upper slope time limit.
Tr
igger Mode
Sweep, select Auto, Nor
In
descriptions in
Trigger Parameter Setting
Trigger Mode
mal, or Single as the trigger mode. For details, refer to
.
You can refer to
noise rejection under this trigger type.
Level Selection and Setting
After the trigger condition setting is completed, you need to adjust the trigger level
to correctly trigger the signal and obtain a stable waveform.
Click or tap the
numeric keypad. You can also use the trigger level knob or use the corresponding
multipurpose knob to adjust level A/level B. When
and low
lower limit remains unchanged. For details, refer to descriptions in
current trigger level is displayed in the trigger information label at the top of the
screen.
TIP
Press the trigger level knob to switch between three modes: "only adjust Level A", "only adjust
Level B", and "adjust Level A and Level B at the same time".
er limit values change at the same time. The difference between upper and
Trigger Holdoff
Level A/Level B input field to set the lev
and
Noise Rejection
to set the trigger holdoff and
Linkage is ticked, the upper limit
el A/level B with the pop-up
Trigger Level
. The
8.7.4 Video Trigger
The video signal can include image information and timing information, which adopts
different standar
field or line of NTSC (National Television Standards Committee), PAL (Phase
Alternating Line), or SECAM (Sequential Couleur A Memoire).
Trigger Type
Click or tap the
ds and formats. This series can trigger on the standard video signal
Type drop-down button to select "Video".
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Triggering the Oscilloscope
Figure 8.8 Video Trigger Setting Menu
er a trigger type is selected, the current trigger setting information (including
Aft
trigger type, trigger source, and trigger level) is displayed in the trigger information
label at the top of the screen, as shown in the figure below. The information will
change based on the trigger settings.
Source Selection
Click or tap Source drop-down button to select CH1-CH4. For details, refer to
Source
top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Video Polarity
. The selected trigger source is indicated in the trigger information label at the
Trigger
In the
polarity ( ).
Video S
Click or tap the drop-down button of
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Polarity it
tandar
em, select the desired polarity: positive polarity (
d
Standard t
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o select the desir
) or negative
ed video standard.
Page 90
Table 8.1 Video Standard
Triggering the Oscilloscope
Video Standard
NTSC 30 Interlaced Scan 525
PAL/SECAM 25 Interlaced Scan 625
480p/60Hz 60 Progressive Scan 525
576p/50Hz 50 Progressive Scan 625
720p/60Hz 60 Progressive Scan 750
720p/50Hz 50 Progressive Scan 750
720p/30Hz 30 Progressive Scan 750
720p/25Hz 25 Progressive Scan 750
720p/24Hz 24 Progressive Scan 750
1080p/60Hz 60 Progressive Scan 1125
1080p/50Hz 50 Progressive Scan 1125
1080p/30Hz 30 Progressive Scan 1125
1080p/25Hz 25 Progressive Scan 1125
1080p/24Hz 24 Progressive Scan 1125
1080i/60Hz 60 Interlaced Scan 1125
1080i/50Hz 50 Interlaced Scan 1125
Frame Frequency
(Frame)
Scan Type TV Scan Line
Sync
In the Sync item, select the desired sync type.
• All Lines: triggers on the first line found.
• Line: triggers on the specified line.
When this sync type is selected, you can specify a line number. Click or tap the
input field of Line to set the line number by using the pop-up numeric keypad.
You can also use the corresponding multipurpose knob to set the value. The
range of the line number is related to the currently selected video standards. The
range is from 1 to 525 (NTSC), 1 to 625 (PAL/SECAM), 1 to 525 (480p), 1 to 625
(576p), 1 to 750 (720p), or 1 to 1125 (1080p/1080i).
• Odd: triggers on the rising edge of the first ramp pulse in the odd field. It is only
available when the video standard is set to "NTSC" or "PAL/SECAM".
• Even: triggers on the rising edge of the first ramp pulse in the even field. It is
only available when the video standard is set to "NTSC" or "PAL/SECAM".
Trigger Mode
In Sweep, select Auto, Nor
descriptions in
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Trigger Mode
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mal, or Single as the trigger mode. For details, refer to
.
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Triggering the Oscilloscope
Trigger Parameter Setting
You can r
efer to
Noise Rejection
Trigger Level
Click or tap the
Level input field to set the trigger lev
keypad. You can also use the front-panel trigger level knob or the corresponding
multipurpose knob to set the trigger level. For details, refer to descriptions in
Level
. The current trigger level is displayed in the trigger information label at the top
of the screen.
TIP
• To bett
depth first.
• In the trigger debugging process of video signals, the frequency in different part of the
signal can be reflected by a different brightness, as RIGOL's digital oscilloscope provides
the intensity graded color display function. Experienced users can quickly judge the
signal quality and discover abnormalities during the debugging process.
er observe the waveform details in the video signal, you can set a larger memory
8.7.5 Pattern Trigger
The pattern trigger identifies a trigger condition by looking for a specified pattern.
This patt
(high), L (low), or X (don't care). A rising or falling edge (you can only specify a single
edge) can be specified for one channel included in the pattern. When an edge is
specified, the oscilloscope will trigger at the edge specified if the pattern set for the
other channels are true (namely the actual pattern of the channel is the same as the
preset pattern). If no edge is specified, the oscilloscope will trigger on the last edge
that makes the pattern true. If all the channels in the pattern are set to "X", the
oscilloscope will not trigger.
ern is a logical "AND" combination of channels. Each channel can be set to H
to set the noise rejection under this trigger type.
el with the pop-up numeric
Trigger
Figure 8.9 Pattern Trigger
igger Type
Tr
Click or tap the
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Type drop-down button to select "Pattern".
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Triggering the Oscilloscope
Figure 8.10 Pattern Trigger Setting Menu
Aft
er a trigger type is selected, the current trigger setting information (including
trigger type, trigger source, and trigger level) is displayed in the trigger information
label at the top of the screen, as shown in the figure below. The information will
change based on the trigger settings.
Source Selection
Click or tap Source drop-down button to select CH1-CH4. For details, refer to
Source
top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Pattern Setting
. The selected trigger source is indicated in the trigger information label at the
Trigger
The following five patterns are available:
• 1: sets the pattern of the channel selected to "1", i.e. the voltage level is higher
than the trigger level of the channel.
• 0: sets the pattern of the channel selected to "0", i.e. the voltage level is lower
than the trigger level of the channel.
• X: sets the pattern of the channel selected to "X", i.e. this channel is not used as a
part of the pattern. When all channels in the pattern are set to "X", the
oscilloscope will not trigger.
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Triggering the Oscilloscope
• : sets the pattern to the rising edge of the channel selected.
• : sets the pattern to the falling edge of the channel selected.
The Left/Right arr
"All" indicates all bits. Select a pattern for a channel and then click or tap
patt
erns of all the other channels will be set to the currently selected pattern. The
pattern setting is as shown in the figure below.
Only one edge (rising or falling edge) can be specified in the pattern. If one edge item
is currently defined and then another edge it
pattern, then a prompt message "Invalid input" is displayed.
ow key indicates moving left/right to switch the channel pattern.
All. The
em is defined in another channel in the
Trigger Mode
Sweep, select Auto, Nor
In
descriptions in
Trigger Parameter Setting
You can refer to
noise rejection under this trigger type.
Trigger Level
Click or tap the Level input field to set the trigger level with the pop-up numeric
keypad. You can also use the front-panel trigger level knob or the corresponding
multipurpose knob to set the trigger level. For details, refer to descriptions in
. The current trigger level is displayed in the trigger information label at the top
Level
of the screen.
Trigger Mode
Trigger Holdoff
8.7.6 Duration Trigger
In duration trigger, the oscilloscope identifies a trigger condition by searching for the
duration of a specified p
channels. Each channel can be set to 1 (high), 0 (low), or X (don't care). The
mal, or Single as the trigger mode. For details, refer to
.
and
Noise Rejection
to set the trigger holdoff and
Trigger
attern. This pattern is a logical "AND" combination of the
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Triggering the Oscilloscope
instrument triggers when the duration (∆T) of this pattern meets the preset time, as
shown in the figure below
.
CH1
CH2
CH3
CH4
∆T ∆T
Figure 8.11 Duration Trigger
Pattern:HLHL
igger Type
Tr
Click or tap the
Type drop-down button to select "Duration".
Figure 8.12 Duration Trigger Setting Menu
er a trigger type is selected, the current trigger setting information (including
Aft
trigger type, trigger source, and trigger level) is displayed in the trigger information
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Triggering the Oscilloscope
label at the top of the screen, as shown in the figure below. The information will
change based on the trigger settings.
Source Selection
Click or tap Source dr
Source
top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Pattern Setting
The following three patterns are available:
• 1: sets the pattern of the channel selected to "1", i.e. the voltage level is higher
• 0: sets the pattern of the channel selected to "0", i.e. the voltage level is lower
• X: sets the pattern of the channel selected to "X", i.e. this channel is not used as a
The Left/Right arrow key indicates moving left/right to switch the channel pattern.
"All" indicates all bits. Select a pattern for a channel, then click or tap
o
. The selected trigger source is indicated in the trigger information label at the
than the trigger level of the channel.
than the trigger level of the channel.
part of the pattern. When all channels in the pattern are set to "X", the
oscilloscope will not trigger.
f all the other channels will be set to the currently selected pattern.
op-down button to select CH1-CH4. For details, refer to
All. The patterns
Trigger
Trigger Condition
Set the trigger condition in the
•
>: triggers when the duration of the pattern is greater the preset time. Click or
tap the input field of
with the pop-up numeric k
multipurpose knob to set the value. The available range is from 1 ns to 10 s.
• <: triggers when the duration of the pattern is smaller than the preset time. Click
or tap the input field of
p
attern. You can also use the corresponding multipurpose knob to set the value.
The available range is from 1 ns to 10 s.
• < >: triggers when the duration of the pattern is smaller than the upper limit of
the preset time and greater than the lower limit of the preset time. Click or tap
the input field of
the range is from 1.01 ns to 10 s. Click or tap the input field of Lower to set the
lower limit of the duration of the pattern, and the range is from 1 ns to 9.9 s. You
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Upper to set the upper limit of the duration of the pattern, and
When item.
Lower to set the lower limit of the duration of the pattern
eypad. You can also use the corresponding
Upper to set the upper limit of the duration of the
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Triggering the Oscilloscope
can also use the corresponding multipurpose knob to set the upper/lower limit.
The lower time limit must be smaller than the upper time limit.
•
> <: triggers when the duration of the pattern is greater than the upper limit of
the preset time or smaller than the lower limit of the preset time. Click or tap the
input field of
range is fr
low
er limit of the duration of the pattern, and the range is from 1 ns to 9.9 s. You
can also use the corresponding multipurpose knob to set the upper and lower
limit. The lower time limit must be smaller than the upper time limit.
Trigger Mode
Sweep, select Auto, Nor
In
descriptions in
Trigger Parameter Setting
Upper to set the upper limit of the duration of the pattern, and the
om 1.01 ns to 10 s. Click or tap the input field of
mal, or Single as the trigger mode. For details, refer to
Trigger Mode
.
Lower to set the
You can refer to
noise rejection under this trigger type.
Trigger Level
Click or tap the
keypad. You can also use the front-panel trigger level knob or the corresponding
multipurpose knob to set the trigger level. For details, refer to descriptions in
Level
. The current trigger level is displayed in the trigger information label at the top
of the screen.
Trigger Holdoff
Level input field to set the trigger lev
8.7.7 Timeout Trigger
In Timeout trigger, the oscilloscope triggers when the time interval (∆T) (the time
from when the rising edge (or falling edge) of the input signal passes through the
trigger level to the time from when the neighboring falling edge (or rising edge)
passes through the trigger level) is greater than the preset timeout value, as shown in
Figure 8.13
.
and
Noise Rejection
to set the trigger holdoff and
el with the pop-up numeric
Trigger
T
Time Out
<
T
Time Out
Figure 8.13 Timeout Trigger
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Triggering the Oscilloscope
Trigger Type
Click or tap the drop-down butt
Figure 8.14 Timeout Trigger Menu
Type to select "Timeout".
on of
Aft
er a trigger type is selected, the current trigger setting information (including
trigger type, trigger source, and trigger level) is displayed in the trigger information
label at the top of the screen, as shown in the figure below. The information will
change based on the trigger settings.
Source Selection
Click or tap Source drop-down button to select CH1-CH4. For details, refer to
Source
top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Edge Type
In
trigger lev
. The selected trigger source is indicated in the trigger information label at the
Slope item, select the edge type from which the input signal passes through the
el.
Trigger
• Rising: starts timing when the rising edge of the input signal passes through the
trigger level.
• Falling: starts timing when the falling edge of the input signal passes through
the trigger level.
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Triggering the Oscilloscope
• Either: star
ts timing when either edge of the input signal passes through the
trigger level.
Timeout Value
Timeout value represents the maximum time that the signal remains idle before the
signal passes through the trigger level. Click or tap the input field of
then use the pop-up numeric keyp
ad to set the timeout value of Timeout trigger. You
Timeout, and
can also use the corresponding multipurpose knob to set the value.
Trigger Mode
Sweep, select Auto, Nor
In
descriptions in
Trigger Mode
mal, or Single as the trigger mode. For details, refer to
.
Trigger Parameter Setting
You can refer to
Noise Rejection
to set the noise rejection under this trigger type.
Trigger Level
Click or tap the
Level input field to set the trigger lev
el with the pop-up numeric
keypad. You can also use the front-panel trigger level knob or the corresponding
multipurpose knob to set the trigger level. For details, refer to descriptions in
Level
. The current trigger level is displayed in the trigger information label at the top
Trigger
of the screen.
8.7.8 Runt Trigger
The runt trigger sets the oscilloscope to trigger pulses that cross one trigger level but
not another, as shown in the figure below.
Upper Limit of the
T
r
igger Level
Lower Limit of the
Trigger Level
Tr
igger Type
Click or tap the drop-down button of
Positive Runt Pulse
Negative Runt Pulse
Figure 8.15 Runt Trigger
Type to select "Runt".
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Triggering the Oscilloscope
Figure 8.16 Runt Trigger Setting Menu
er a trigger type is selected, the current trigger setting information (including
Aft
trigger type, trigger source, and trigger level) is displayed in the trigger information
label at the top of the screen, as shown in the figure below. The information will
change based on the trigger settings.
Source Selection
Click or tap Source drop-down button to select CH1-CH4. For details, refer to
Source
top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Polarity
Select the pulse polarity of Runt trigger under the
. The selected trigger source is indicated in the trigger information label at the
Polarity item.
Trigger
• Positive : indicates that the instrument triggers on the positive runt pulse.
• Negative : triggers on the negative runt pulse.
Trigger Condition
Set the Runt trigger condition in the When item.
• None: indicates not setting the trigger condition of Runt trigger.
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Triggering the Oscilloscope
• >: triggers when the runt pulse width is gr
Click or tap the input field of
trigger with the pop-up numeric k
Lower to set the minimum pulse width of Runt
eypad. You can also use the corresponding
eater the Lower limit of pulse width.
multipurpose knob to modify the value.
• <: triggers when the runt pulse width is smaller than the upper limit of pulse
width. Click or tap the input field of
Runt trigger with the pop-up numeric k
Upper to set the maximum pulse width of
eypad. You can also use the
corresponding multipurpose knob to modify the value.
• < >: triggers when the runt pulse width is greater than the lower limit and
smaller than the upper limit of pulse width. Click or tap the input field of
to set the maximum pulse width o
keypad. Click or tap the input field of
Runt trigger with the pop-up numeric k
f Runt trigger with the pop-up numeric
Lower to set the minimum pulse width of
eypad. You can also use the
Upper
corresponding multipurpose knob to modify the maximum and minimum pulse
width. The lower limit of the pulse width must be smaller than the upper limit.
Trigger Mode
Sweep, select Auto, Nor
In
descriptions in
Trigger Mode
mal, or Single as the trigger mode. For details, refer to
.
Trigger Parameter Setting
You can refer to
Trigger Holdoff
and
Noise Rejection
to set the trigger holdoff and
noise rejection under this trigger type.
Level Selection and Setting
After the trigger condition setting is completed, you need to adjust the trigger level
to correctly trigger the signal and obtain a stable waveform.
Click or tap the Level A/Level B input field to set the lev
el A/level B with the pop-up
numeric keypad. You can also use the trigger level knob or use the corresponding
multipurpose knob to adjust level A/level B. When
and low
er limit values change at the same time. The difference between upper and
lower limit remains unchanged. For details, refer to descriptions in
Linkage is ticked, the upper limit
Trigger Level
. The
current trigger level is displayed in the trigger information label at the top of the
screen.
TIP
Press the trigger lev
Level B", and "adjust Level A and Level B at the same time".
el knob to switch between three modes: "only adjust Level A", "only adjust
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