Scientific SMO2000X User manual

Digital Oscilloscope
SMO2000X
User Manual

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Copyright © Scientific All rights reserved.
This instrument contains proprietary information, no part of this manual may be
photocopied, reproduced or translated without any prior written consent.
Information in this manual supersedes all corresponding previous released
material.
Scientific continues to improve products and reserves rights to amend part or all of
the specifications, procedures, equipment at any time without notice.
Ver_1.00/ 0216
Scientific Mes-Technik Pvt. Ltd
B-14 Industrial Estate, Pologround
Indore - 452015 (India)
Tel : [phone]/33
Fax: [phone]
Email : [email protected]
Website : www.scientificindia.com

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Table of Contents
Copyright and Declaration...................................................................................................2
Safety Information...........................................................................................................11
General Safety Summary................................................................................................11
Safety Terms and Symbols..............................................................................................13
Measurement Category...................................................................................................14
Working Environment......................................................................................................15
General Care and Cleaning.............................................................................................17
Document Overview........................................................................................................18
Quick Start......................................................................................................................20
Appearance and Dimensions.....................................................................................20
To Prepare the Oscilloscope for Use.........................................................................21
To Adjust the Supporting Legs...........................................................................21
To Connect to Power Supply..............................................................................22
Power-on Inspection...........................................................................................22
To Connect the Probe.........................................................................................23
Functional Inspection..........................................................................................23
Probe Compensation..........................................................................................24
Front Panel Overview.........................................................................................26
Rear Panel Overview..........................................................................................27
Front Panel Overview................................................................................................28
Horizontal...........................................................................................................28
Vertical...............................................................................................................29
Trigger................................................................................................................31
Run Control........................................................................................................32
Universal Knob....................................................... ...........................................33
Menu..................................................................................................................34
Help...................................................................................................................36
User Interface....................................................................................................37
To Use the Security Lock...................................................................................................40
To Set the Vertical System.................................................................................................41
To Enable the Channel.................................................................................... .........42
To Adjust the Vertical Scale.................................................... ...................................43
To Adjust the Vertical Position...................................................................................43
To Specify Channel Coupling....................................................................................44
To Specify Bandwidth Limit.......................................................................................44
To Specify Probe Attenuation Factor.........................................................................45
To Specify channel Input Impedance.........................................................................45

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To Specify Amplitude Unit .........................................................................................46
To Invert Waveform....................................................................................................46
Set the Horizontal System..................................................................................................47
Adjust the Horizontal Scale.........................................................................................48
Adjust Trigger Delay...................................................................................................48
Set the Roll mode.......................................................................................................49
Use the Zoom Function...............................................................................................49
To Set the Sample System.................................................................................................51
Run Control.................................................................................................................52
Overview of Sampling.................................................................................................53
Sampling Theory..................................................................................................53
Sample Rate........................................................................................................53
Oscilloscope Bandwidth and Sample Rate..........................................................54
Select Memory Depth.................................................................................................56
Select Sampling Mode................................................................................................56
Select Waveform Interpolation Method...................................................... .................56
Select Acquisition Mode..............................................................................................59
Normal ................................................................................................................59
Peak Detect.........................................................................................................60
Average.................................................... ...........................................................61
Eres(Enhanced Resolution).................................................................................62
Change the Horizontal Format....................................................................................63
Use Sequence Mode..................................................................................................64
To Trigger the Oscilloscope................................................................................................66
Trigger Source.............................................................................................................68
Trigger Mode...............................................................................................................69
Trigger Level...............................................................................................................70
Trigger Coupling.................................................... .....................................................70
Trigger Hold off...........................................................................................................71
Noise Rejection..........................................................................................................72
Trigger Type..............................................................................................................73
Edge Trigger.......................................................................................................74
Slope Trigger......................................................................................................75
Pulse Trigger......................................................................................................77
Video Trigger......................................................................................................79
Window Trigger..................................................................................................82
Interval Trigger...................................................................................................85
Dropout Trigger..................................................................................................87

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Runt Trigger........................................................................................................90
Pattern Trigger....................................................................................................92
Serial Trigger and Decode................................................................................................94
IIC Trigger and Serial Decode....................................................................................95
Setup for IIC Signals...........................................................................................95
IIC Triggering......................................................................................................96
IIC Serial Decode...............................................................................................100
SPI Triggering and Serial Decode.............................................................................102
Setup for SPI Signals.........................................................................................102
SPI Triggering.....................................................................................................105
SPI Serial Decode..............................................................................................106
UART/RS232TriggeringandSerial Decode.................................................................109
Setup for UART/RS232 Signals.........................................................................109
UART/RS232 Triggering....................................................................................110
UART/RS232SerialDecode...............................................................................111
CAN Trigger and Serial Decode...............................................................................114
Setup for CAN Signals......................................................................................114
CAN Triggering.................................................................................................115
CAN Serial Decode..........................................................................................116
LIN Triggering and Serial Decode...........................................................................119
Setup for LIN Signals.......................................................................................119
LIN Triggering...................................................................................................120
LIN Serial Decode.............................................................................................121
To Save Reference Waveform........................................................................................123
To Save REF Waveform to Internal Memory ..........................................................124
To Display REF Waveform......................................................................................124
To Adjust REF Waveform Display...........................................................................125
To Clear REF Waveform Display............................................................................125
To Use the Math Operation............................................................................................126
Units for Math Waveforms......................................................................................126
Math Operators .....................................................................................................127
Addition or Subtraction...................................................................................127
Multiplication and Division ............................................................................128
FFT Operation...............................................................................................129
Math Function Operation......................................................................................132
Differentiate...................................................................................................132
Integrate........................................................................................................133
Square Root..................................................................................................135

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To Make Cursors Measurements.....................................................................................136
X Cursors..................................................................................................................136
Y Cursors .................................................................................................................136
To Make Cursor Measurements...............................................................................137
To Make Measurements..................................................................................................138
Type of Measurement..............................................................................................139
Voltage Measurements............................................... ...........................,,,,.......139
Time Measurements..............................................................................,,,,,......141
Delay Measurements .......................................................................................142
To Make Automatic Measurements..........................................................................143
To Clear Measurement Parameters.........................................................................144
To Make All Measurement.......................................................................................145
Display Setting...............................................................................................................146
To Set Display Type................................................................................................147
To Set Color Display...............................................................................................148
To Set and Clear Persistence.................................................................................148
To clear the display.................................................................................................149
To Select Grid Type................................................................................................150
To Adjust Waveform Intensity..................................................................................150
To Adjust Grid Brightness.......................................................................................152
To Adjust Transparence..........................................................................................152
Save and Recall.............................................................................................................153
Save Type.................................................................................. .............................154
Internal Save and Recall.........................................................................................155
External save and recall..........................................................................................156
Disk Management............................................................................................................159
To Create a New File or Folder.......................................................................160
To delete a file or folder...................................................................................161
To rename file or a folder.................................................................................161
System Function Setting................................................................................................162
To View the System Status....................................................................................163
To Do Self Calibration......................... ...................................................................164
To Enable or Disable the Sound.............................................................................165
To Specify the Language........................................................................................165
To Enable the Pass/Fail Test...................................................................................166
To Set and Perform Pass/Fail Test..................................................................167
To Save and Recall Test Mask.........................................................................168
I/O Set.....................................................................................................................170

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To Set the USB Device......................................................................................170
To Set the LAN..................................................................................................171
To Set Aux Output.............................................................................................172
To Enable Quick-Cal................................................... ..............................................173
To Update Firmware and Configuration....................................................................174
Do Self Test..............................................................................................................175
Screen Test.................................................... ...................................................175
Keyboard Test..................................................... ..............................................176
LED Test...........................................................................................................177
To specify Screen Saver Time..................................................................................178
Option Management.................................................................................................179
To Use the History Function................................................................................. ...........181
Arbitrary Waveform Generator.........................................................................................183
To Set Wave Type and Parameters..........................................................................184
To Output Arbitrary Waveform.................................................................................186
To Set Output Load..................................................................................................187
Recover the Default Values of Wave Gen................................................................187
AWG Self Cal...........................................................................................................188
Default Setup...................................................................................................................189
Troubleshooting................................................................................................................195
Service and Support..........................................................................................................197

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Content of Figure
Figure 1: Front View............................... ................................ ..................................................20
Figure 2: Top View............................... ................................ ................................ ....................20
Figure 3: Adjust the Supporting Legs............................... ................................ ........................21
Figure 4: To Connect to Power Suppl ............................... ............................... .......................22
Figure 5: Function Inspection............................... ................................ .............................. .....24
Figure 6: Front Panel Overview............................... ................................ ............................... .26
Figure 7: Rear panel Overview............................... ................................ ..................................27
Figure 8: Help Message............................... ................................ ................................ ............36
Figure 9: User Interface............................... ................................ ............................................37
Figure 10: To Use the Securit Lock............................... ................................ ..........................40
Figure 11: Displa T pe set to Dots............................... ................................ ...........................57
Figure 12: x Interpolation............................... ................................ ................................ .........58
Figure 13: Sinx Interpolation............................... ................................ ............................... .....58
Figure 14: Acquisition S stem............................... ................................ ................................ ..59
Figure 15: Pulse With 0.1% Dut , Normal Mode............................... ................................ ......60
Figure 16: Pulse With 0.1% Dut , Peak Detect Mode............................................................. .60
Figure 17: With Random Noise, Normal Mode............................... ................................ ........61
Figure 18: With Random Noise, Average Mode............................................................... .......62
Figure 19: Eres Mode............................................................... ................................ ...............62
Figure 20: SEQUENCE Function Menu............................... ................................ ......................64
Figure 21: HISTORY Function Menu............................... ................................ .........................64
Figure 22: Turn off the Noise Reject............................................................... ........................72
Figure 23: Turnon the Noise Reject............................... .........................................................72
Figure 24: Edge Trigger............................... ................................ ............................... .............74
Figure 25: Slope Trigger............................... ................................ ...........................................75
Figure 26: Pulse Trigger............................... ...........................................................................78
Figure 27: Video Trigger............................... ................................ ...........................................81
Figure 28: Absolute Window Trigger............................... ................................ .......................83
Figure 29: Relative Window Trigger.......................................................................................84
Figure 30: Interval Trigger............................... ................................ ................................ .......86
Figure 31: Edge DropOut Trigger............................... ................................ .............................88
Figure 32: State DropOut Trigger............................... .............................................................89

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Figure 33: Runt Trigger............................... ................................ ................................ .............91
Figure 34: Pattern Trigger............................... ................................ ................................ .........93
Figure 35: IIC SINGAL Menu............................... ................................ ................................ .....95
Figure 36: IIC TRIGGER Menu............................... ................................ ................................ ...96
Figure 37: IIC Decode Menu............................... ................................ ................................ ....100
Figure 38: IIC Decode Result............................... ................................ ................................ ....100
Figure 39: SPI SINGAL Menu............................... ................................ ................................ ....102
Figure 40: SPI clock Menu............................... ................................ ................................ ........102
Figure 41: MOSI Menu............................... ................................ ................................ .............103
Figure 42: MOSI Menu............................... ................................ ................................ .............103
Figure 43: SPI CS Menu............................... ................................ ................................ ............103
Figure 44: SPI TRIG SET Menu............................... ................................ ................................ ..105
Figure 45: SPI Trigger............................................................... ................................ ................106
Figure 46: SPI Decode function menu............................... ................................ ......................106
Figure 47: SPI Decode............................... ................................ ................................ ...............107
Figure 48:UART SIGNAL Menu............................... ................................ ..................................109
Figure 49 : BUS CONFIG Menu............................... ................................ ................................ ..109
Figure 50 : UART TRIG SET Menu............................... ................................ ............................. .110
Figure 51 : UART Trigger............................... ................................ .......................................... .111
Figure 52 : UART/RE232 Decode Function Menu............................... ................................ .....111
Figure 53 : UART Decode............................... ................................ ................................ ..........112
Figure 54 : CAN SIGNAL Menu............................... ................................ ................................ ..114
Figure 55 : CAN Trigger............................... ................................ ................................ .............116
Figure 56 : CAN Decode............................... ................................ ................................ ............117
Figure 57 : LIN SIGNAL Menu............................... ................................ ................................ ...119
Figure 58 : LIN Trigger............................... ................................ ................................ ..............120
Figure 59 : LIN DECODE Function Menu............................... ................................ ..................121
Figure 60 : LIN Decode............................... ................................ ................................ .............121
Figure 61 : Reference Waveform............................... ................................ ............................ .125
Figure 62 : Reference Waveform............................... ................................ ............................ .127
Figure 63 : Reference Waveform............................... ................................ .............................128
Figure 64 : FFT Waveform In Split Mode............................... ................................ .................131
Figure 65 : Differential Function Operation............................... ................................ .............132
Figure 66 : Integral without Offset............................... ................................ ......................... .134
Figure 67 : Integral with Offset............................... ................................ ............................. ..134
Figure 68 : Square Root............................... ................................ ................................ ...........135

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Figure 69 : Measure Pulse Width............................... ................................ ...........................137
Figure 70 : Voltage Measurements............................... ................................ .........................139
Figure 71 : Overshoot............................... ................................................................ .............140
Figure 72 : Preshoot............................... ................................ ................................ ...............140
Figure 73 : Time Measurements............................... ................................ .............................141
Figure 74 : Select the Measurement Parameter............................... ............................... ......143
Figure 75 : Added the Measurement............................... ................................ ......................144
Figure 76 : All Parameters Measurement............................... ................................ ...............145
Figure 77 : Vectors Displa ............................... ................................ ............................... ......147
Figure 78 : Dots Displa ............................... ................................ ................................. .........147
Figure 79 : Color Temperature............................... ................................ ............................... .148
Figure 80 : Persist Set to Infinite............................................................... .............................149
Figure 81 : Intensit Set to 100%............................... ................................ ............................151
Figure 82 : Intensit Set to 10%............................... ................................ ..............................151
Figure 83 : SAVE/RECALL File S stem............................... ................................ ......................156
Figure 84 : Select Save Location............................... ................................ .............................. 157
Figure 85 : File Name Dialogue............................... ...............................................................157
Figure 86 : Input Ke board............................... ................................ ................................ ......160
Figure 87 : S stem Status............................... ................................ ................................ ........163
Figure 88 : Do Self Cal............................... ................................ ................................ .............164
Figure 89 : Pass/Fail Test............................... ................................ ................................ .........166
Figure 90 : LAN Setting Interface............................... ................................ ............................171
Figure 91 : Screen Test............................... ................................ ................................ ............175
Figure 92 : Ke board Test............................... ................................ ................................ ........176
Figure 93 : LED Test............................... ................................ ................................ .................177
Figure 94 : Screen Saver Interface............................... ................................ ..........................178
Figure 95 : OPTION Function Menu............................... ................................ ........................179
Figure 96 : LABEL Function Menu............................... ................................ ...........................179
Figure 97 : Option Information............................... ................................ ...............................180
Figure 98 : Histor ............................... ................................ ................................ ...................181
Figure 99 : Send Wave Dialogue............................... ................................ ..............................186
Figure 100 : AWG Menu............................... ................................ ..........................................186
Figure 101 : SETTING Function Menu............................... ................................ .....................187
Figure 102 : AWG Self Cal............................... ................................ .............................. .........188

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Safety Information
General Safety Summary
Carefully read the following safety precautions to avoid any personal injury or
damage to the instrument and any products connected to it. To avoid potential
hazards, please use the instrument as specified.
Use Proper Power Cord
Use the power cord provided with the instrument or similar.
Ground the Instrument
The instrument is grounded through the protective earth conductor of the power cord. To
avoid electric shock, please make sure the instrument is grounded correctly before
connecting its input or output terminals.
Connect the Signal Wire Correctly
The potential of the signal wire ground is equal to the earth, so do not connect the signal
wire to a high voltage.
Look Over All Terminal s Ratings
To avoid fire or electric shock, please look overall ratings and sign instruction of the
instrument. Before connecting the instrument, please read the manual carefully to gain
more information about the ratings.
Use Proper Over voltage Protection
Make sure that no over voltage (such as that caused by a thunderstorm) can reach the
product, or else the operator might expose to danger of electrical shock.
Electrostatic Prevention
Operate in an electrostatic discharge protective area environment to avoid damages
induced by static discharge. Always ground both the internal and external conductors of
the cable to release static before connecting.
Maintain Proper Ventilation
Inadequate ventilation may cause an increase of instrument‘s temperature, which may
eventually damage the instrument. Maintain proper ventilation and inspect the intake and
fan regularly.
Avoid Exposed Circuits and Components
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Use Proper Fuse
Use only the specified fuse.
Do Not Operate Without Covers
Do not operate the instrument with covers or panels removed.
Do Not Operate With Suspected Failures.
If you suspect damage has occurred to the instrument, have it inspected by qualified
service personnel before further operation. Any maintenance, adjustment or replacement
especially to circuits or accessories must be performed by authorized personnel.
Do Not Operate in Wet Conditions.
In order to avoid short circuiting to the interior or of the device or electric shock, please do
not operate in a humid environment.
Do Not Operate in an Explosive Atmosphere.
In order to avoid damages to the device or personal injuries, it is important to operate the
device away from an explosive atmosphere.
Keep Product Surfaces Clean and Dry.
To avoid the influence of dust and/or moisture in air, please keep the surface of device
clean and dry.
Handling Safety
Please handle with care during transportation to avoid damages to buttons, knob interfaces
and other parts on the panels.

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Safety Terms and Symbols
Terms in this Manual. These terms may appear in this manual:
WARNING
Warning statements indicate the conditions or practices that could result in injury
or loss of life.
CAUTION
Caution statements indicate the conditions or practices that could result in
damage to this product or other property.
Terms used in this product. These terms may appear in the product:
DANGER Indicates direct injuries or hazards that may happen.
WARNING Indicates potential injuries or hazards that may happen.
CAUTION Indicates potential damages to the instrument or other property that may happen.
Symbols used in this product. These symbols may appear in the product:
Hazardous protective Earth Warning Earth Power Switch
Voltage Terminal Ground

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Measurement Category
Measurement Categories
The digital oscilloscopes can make measurements in measurement category I.
WARNING
This oscilloscope can only be used for measurements with in its specified
measurement categories.
Measurement Category Definitions
Measurement category I is for measurements performed on circuits not directly 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;
for that reason, the transient withstand capability of the equipment is made known to the
user.
Measurement category II is for measurements performed on circuits directly connected to
the 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, socket-outlets in the fixed installation, and
equipment for industrial use and some other equipment, for example. Stationary motors
with permanent connection to the fixed installation.
Measurement category IV is for measurements performed at the source of the low-voltage
installation. Examples are electricity meters and measurements on primary over current
protection devices and ripple control units.

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Temperature
Operating :10℃to +40℃
Non-operation : -20℃to +60℃
Humidity
Operating : 85%RH,40℃, 24 hours
Non-operating : 85%RH, 65℃, 24 hours
WARNING
To avoid short circuit inside the instrument or electric shock, please do not
operate in humid environment.
Altitude
Operating:less than 3km
Non-operation: less than 15km
Installation (Over voltage) Category
This product is powered by mains conforming to installation (over voltage) category II.
WARNING
Make sure that no over voltage (such as that caused by lightning)can reach
theproductorelsetheoperatormightbeexposedtodangerof electric shock.
Installation (Over voltage) Category Definitions
Installation (over voltage) category I refers to signal level which is applicable to equipment
measurement terminals connected to the source circuit. In these terminals, precautions
should be made to limit the transient voltage to the corresponding low level.
Installation(over voltage) category II refers to the local power distribution level which is
applicable to equipment connected to the AC line (AC power).
This oscilloscope uses fan-forced air cooling. Please make sure that the air intake and
exhaust areas are free from obstructions and have adequate ventilation. When using the
oscilloscope in a bench-top or rack setting, provide at least 10 cm clearance beside, above
and behind the instrument for adequate ventilation.

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WARNING
Inadequate ventilation may cause temperature increase which would damage
the instrument. So please keep the instrument well ventilated during operation
and inspect the intake and fan regularly.

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General Care and Cleaning
Care
Do not store or leave the instrument in direct sunshine for long periods of time.
WARNING
To avoid damages to the instrument or probe, please do not leave them in fog,
liquid, or solvents.
Cleaning
Please perform the following steps to clean the instrument and probe regularly according
to its operating conditions.
1. Disconnect the instrument from all power sources and then clean it with a soft wet cloth.
2. Clean the loose dust on the outside of the instrument and probe with a soft cloth.
When cleaning the LCD, take care to avoid scratching it.
WARNING
To avoid damages to the surface of the instrument and probe, please do not
use any corrosive liquid or chemical cleanser.
WARNING
Make sure that the instrument is completely dry before restarting it to avoid
short circuits or personal injuries.

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Document Overview
This manual introduces how to use the digital oscilloscope in detail.
Quick Start Provide information about preparations before
using the instrument and a brief introduction of
the instrument.
To Set the Vertical System Introduce the functions of the vertical system of
the oscilloscope.
To Set the Horizontal System Introduce the functions of the horizontal system
of the oscilloscope.
To Set the Sample System Introduce the functions of the sample system of
the oscilloscope.
To Trigger the Oscilloscope Introduce the trigger mode, trigger coupling,
trigger hold off, external trigger and various
trigger types of the oscilloscope.
Serial Trigger and Decode Introduce how to trigger and decode the input
signal.
To Save Reference Waveform Introduce how to save and display REF
waveform.
To Make Math Operation Introduce the math operation function of the
oscilloscope.
To Make Cursor Measurements Introduce how to use cursors to make
measurements.
To Make Measurements Introduce how to use measure function to
measure the waveform parameters.
Display Setting Introduce how to set the display of the
oscilloscope.
Save and Recall Introduce how to save and recall the
measurement result and the setting of the
oscilloscope.
System Setting Introduce how to set the system setup.

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Arbitrary Waveform Generation Introduce how to use Arbitrary waveform
generation function.
Default Introduce the Default setup of the oscilloscope
Troubleshooting Introduce how to deal with common more
common problems of the oscilloscope.
Content Conventions in this Manual
This manual uses the max bandwidth model in examples and the descriptions shown list
all the functions and performances of other models.

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Quick Start
This chapter introduces the preparations when using the oscilloscope for the first time, the
front panel, rear panel and user interface of the oscilloscope,
Appearance and Dimension
Figure1:Front View
Figure2:Top View