Scientific SMO1000A-S User manual

Digital Oscilloscope
SMO1000A-S
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.
Rev 1.00/ 0116
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 Content
Copyright and Declaration ............................... ................................ ..........................................2
Safety Information ............................... ................................ ................................ ........................9
General Safety Summary ............................... ................................ ................................ ................9
Safety Terms and Symbols ............................... ................................ ............................................ 11
Measurement Category ............................... ................................ ................................ ................ 12
Working Environment ............................... ................................ ................................ ................... 12
Installation Overvoltage Category................................................................................................1
General Care and Cleaning............................... ................................ ................................ ....... .... 1
Document Overview............................... ................................ ................................ ...................14
Quick Start.............................. ................................ ................................ ....................................15
General Inspection............................... ................................ ................................ ...............16
Appearance and Dimensions ............................... ................................ ............................... 17
To Prepare the Oscilloscope for Use ............................... ................................ ....................18
To Adjust the Supporting Legs ............................... ................................ ................18
To Connect to Power Supply............................... ................................ ...................19
Power-on Inspection ............................... ................................ ................................ .19
To Connect the Probe ............................... ................................ ............................... 20
Function Inspection ............................... ................................ ................................ ...20
Probe Compensation ............................... ................................ ............................... .21
Front Panel Overview ............................... ................................ ............................... 22
Rear Panel Overview............................................................... ................................ 2
Front Panel Function Overview............................... ................................ ............................24
Horizontal............................... ................................ ................................ ....................24
Vertical ............................... ................................ ................................ ........................ 25
Trigger............................... ................................ ................................ .........................26
Run Control ............................... ................................ ................................ ................27
Universal Knob............................... ................................ ............................... ............28
Menu............................... ................................ ................................ ............................29
Help ............................... ................................ ................................ ................................ ...... 0
User Interface............................................................... ................................ ....................... 1
To Use the Security Lock ............................... ................................ ................................ ......
To Set the Vertical System ............................... ................................ ................................ ........ 4
To Enable the Channel ............................... ................................................................ ......... 5
To Adjust the Vertical Scale ............................... ................................ ................................ . 6
To Adjust the Vertical Position............................... ................................ ............................. 6
To Specify Channel Coupling ............................... ................................ ................................ 7
To Specify Bandwidth Limit............................... ................................ ................................ .. 7
To Specify Probe Attenuation Factor ............................... ................................ ................... 8
To Specify channel Input Impedance ............................... ................................ ................... 8
To Specify Amplitude Unit ............................... ................................ ................................ ... 8
To Invert a Waveform ............................... ................................ ................................ .......... 9

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Set the Horizontal System ............................... ................................ ................................ ..........40
Adjust the Horizontal Scale ............................... ................................ ................................ ...41
Adjust Trigger Delay ............................... ................................ ................................ ..............41
Set the Roll mode............................... ................................ ................................ ..................41
Use the Zoom Function ............................... ................................ ................................ .........42
To Set the Sample System ............................................................... ................................ .......4
Run Control ............................... ................................ ................................ ...........................44
Overview of Sampling ............................... ................................ ................................ ...........45
Sampling Theory ............................... ................................ ........................................45
Sample Rate............................... ................................ ................................ ................46
Oscilloscope Bandwidth and Sample Rate ............................... ............................47
Select Memory Depth ............................... ................................ ................................ ...........48
Select Sampling Mode............................... ................................ ................................ ...........48
Select Waveform Interpolation Method............................... ................................ ...............49
Select Acquisition Mode ............................... ................................ ................................ .......51
Normal ............................... ................................ ................................ ..........................51
Peak Detect ............................... ................................ ................................ ...................52
Average ............................... ................................ ................................ ......................... 5
High Resolution ............................... ................................ ................................ .............54
Change the Horizontal Format............................... ................................ .............................. 55
Use Sequence Mode ............................... ................................ ................................ .............56
To Trigger the Oscilloscope ............................... ................................ ................................ ......58
Trigger Source ............................... ................................................................ .......................60
Trigger Mode............................... ................................ ................................ ......................... 61
Trigger Level ............................... ................................ ................................ ..........................62
Trigger Coupling ............................... ................................ ................................ ....................62
Trigger Holdoff ............................... ................................ ................................ ......................6
Noise Rejection ............................... ................................ ................................ .....................6
Trigger Type ............................... ................................ ................................ ..........................65
Edge Trigger............................... ................................................................ ................66
Slope Trigger............................... ................................ ................................ ...............67
Pulse Trigger............................... ................................ ................................ ...............69
Video Trigger............................... ................................ ................................ ...............71
Window Trigger............................... ................................ ................................ ...........74
Interval Trigger............................... ................................ ................................ ............77
DropOut Trigger............................... ................................ ................................ ..........79
Runt Trigger ............................... ................................ ................................................81
Pattern Trigger ............................... ................................ ................................ ............8
Serial trigger and decode ............................... ................................ ................................ ..........85
IIC Trigger and Serial Decode ............................... ................................ ................................ 86
Setup for IIC Signals ............................... ................................ ................................ ..86
IIC Triggering............................... ................................ ................................ ...............87
IIC Serial Decode ............................... ................................ ................................ .......90
SPI Triggering and Serial Decode............................... ................................ ...........................92
Setup for SPI Signals............................... ................................ ................................ .92

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SPI Triggering ............................... ................................ ................................ ................95
SPI Serial Decode ............................... ................................ .............................. ...........97
UART/RS2 2 Triggering and Serial Decode............................... ................................ ...............99
Setup for UART/RS232 Signals ............................... ................................ ..................99
UART/RS232 Triggering............................... ................................ .............................100
UART/RS232 Serial Decode ............................... ................................ .....................101
To Save Reference Waveform............................... ................................ .......................... .........10
To Save REF Waveform to Internal Memory ............................... ................................ ..........104
To Display REF Waveform ............................... ................................ ............................ ...........104
To Adjust REF Waveform Display............................... ................................ ............................105
To Clear REF Waveform Display............................... ................................ ......................... ....105
To Make Math Operation............................... ................................ ................................ ............106
Units for Math Waveforms ............................... ................................ ................................ ....106
Math Operators ............................... ................................ ................................ .....................107
Addition or Subtraction............................... ................................ ................................ ..107
Multiplication and Division ............................... ................................ ............................108
FFT Operation............................... ................................ ................................ .................109
Math Function Operation............................... ................................ ................................ .......112
Differentiate ............................... ................................ ................................ ...................112
Integrate............................... ................................ ................................ .........................11
Square Root............................... ................................ ................................ ....................114
To Make Cursors Measurements ............................... ................................ ............................. .115
X Cursors ............................... ................................ ................................ ............................... .115
Y Cursors ............................................................... ................................ ............................... .115
To Make Cursor Measurements............................... ................................ .............................116
To Make Measurements............................... ................................ ................................ .................117
Type of Measurement ............................... ................................ ................................ ............118
Voltage Measurements ............................... ................................ ................................ ..118
Time Measurements ............................................................... ................................ ......120
Delay Measurements ............................... ................................ ................................ .....121
To Make Automatic Measurement............................... ................................ .........................122
To Clear Measurement Parameters............................... ................................ ........................124
To Make All Measurement ............................... ................................ ................................ .....124
Display Setting............................... ................................ ................................ ............................... .125
To Set Display Type............................... ................................ ................................ .................126
To Set Color Display............................... ................................ ................................ ................127
To Set and Clear Persistence ............................... ................................ ................................ ..127
To clear the display............................... ................................ ................................ .................128
To Select Grid Type ............................................................... ................................ ................129
To Adjust Waveform Intensity ............................... ................................ ............................... .129
To Adjust Grid Brightness ............................... ................................ ................................ .......1 1
To Adjust Transparence ............................... ................................ ................................ ..........1 1
Save and Recall............................... ................................ ................................ .............................. .1 2
Save Type............................... ................................ ................................ ............................... .1

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Internal Save and Recall ............................... ................................ ................................ .........1 4
External save and recall............................... ................................ ................................ ..........1 5
Disk Management ............................... ................................ ................................ ..................1 8
To Create a New File or Folder ............................... ................................ .......................1 9
To delete a file or folder ............................... ................................ ................................ .140
To rename a file or a folder ............................................................... ............................140
System Function Setting............................... ................................ ................................ .................141
To View the System Status............................... ................................ ................................ .....142
To Do Self Calibration ............................... ................................ ................................ .............14
To Enable or Disable the Sound ............................... ............................................................. 144
To Specify the Language ............................... ................................ ................................ ........144
To Do Pass/Fail Test ............................... ................................ ................................ ................145
To Set and Perform Pass/Fail Test ............................... ................................ .................146
To Save and Recall Test Mask ............................... ................................ ........................ .147
IO Set............................... ................................ ................................ ......................................149
To Set the USB Device ............................... ................................ ................................ ....149
To Set the LAN............................... ................................ ................................ ................150
To Set Aux Output............................... ................................ ................................ ..........151
To Enable Quick-Cal............................................................... ................................ ................152
To Update Firmware and Configuration ............................................................... ................15
Do Self Test............................... ................................ ................................ ............................. 154
Screen Test ............................... ................................ ................................ ..................... 154
Keyboard Test ............................... ................................ ................................ ................155
LED Test............................... ................................ ................................ ......................... .156
To specify Screen Saver Time ............................... ................................ ................................ .157
Option Management............................... ................................ ..............................................158
To Use the History Function............................... ................................ ................................ ...........160
Arbitrary Waveform Generator ............................... ................................ ................................ .....162
To Set Wave Type and Parameters ............................... ................................ .........................16
To Output Arbitrary Waveform............................... ................................ ............................. .165
To Set Output Load............................... ................................ ................................ .................166
Recover the Default Values of Wave Gen................................ ................................ ..............166
AWG Self Cal............................... ................................ ................................ ...........................167
Default Setup ............................... ................................ ................................ ................................ .168
Troubleshooting ............................... ................................ ................................ .............................174
Service and Support.......................................................... ................................ .............................174
Content of Figure
Figure 1 Front View............................... ................................ ................................ ...................17
Figure 2 Top View ............................... ................................ ................................ .....................17
Figure Adjust the Supporting Legs ............................... ................................ .........................18
Figure 4 To Connect to Power Supply ............................... ................................ .......................19
Figure 5 Function Inspection............................... ................................ ................................ .....20

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Figure 6 Front Panel Overview ............................... ................................ ................................ .22
Figure 7 Rear panel Overview ............................... ................................ ................................ ..2
Figure 8 Help Message............................... ................................ ................................ ............. 0
Figure 9 User Interface............................... ................................ ................................ ............. 1
Figure 10 To Use the Security Lock ............................... ................................ ..........................
Figure 11 Display Type Set to Dots............................... ................................ .......................... .49
Figure 12 x Interpolation............................... ................................ ................................ ..........50
Figure 1 Sinx Interpolation............................... ................................ ................................ .....50
Figure 14 Acquisition System ............................... ................................ ................................ ...51
Figure 15 Pulse With 0.1% Duty, Normal Mode .....................................................................52
Figure 16 Pulse With 0.1% Duty, Peak Detect Mode ............................... .............................. .52
Figure 17 With Random Noise, Normal Mode............................... ................................ .........5
Figure 18 With Random Noise, Average Mode............................... ................................ ........54
Figure 19 SEQUENCE Function Menu ............................... ................................ ...................... 56
Figure 20 HISTORY Function Menu ............................... ................................ .......................... 56
Figure 21 Turn off the Noise Reject............................... ................................ ....................64
Figure 22 Turn on the Noise Reject............................... ................................ ....................64
Figure 2 Edge Trigger............................... ................................ ................................ ..............66
Figure 24 Slope Trigger............................... ................................ .............................................68
Figure 25 Pulse Trigger............................... ................................ ................................ ........70
Figure 26 Video Trigger ............................... ................................ ................................ ............7
Figure 27 Absolute Window Trigger............................... ................................ ........................ .75
Figure 28 Relative Window Trigger ............................... ................................ ......................... .76
Figure 29 Interval Trigger ............................... ................................ ................................ .........78
Figure 0 Edge DropOut Trigger............................... ................................ .............................. .80
Figure 1 State DropOut Trigger ............................... ................................ ............................. .80
Figure 2 Runt Trigger............................... ................................ ................................ ..............82
Figure Pattern Trigger............................... ................................ ................................ ..........84
Figure 4 IIC SINGAL Menu ............................... ................................ ................................ ......86
Figure 5 IIC TRIGGER Menu............................... ................................ ................................ ....87
Figure 6 IIC Decode Menu............................... ................................ ................................ ......90
Figure 7 IIC Decode Result ............................... ................................ ................................ .....90
Figure 8 SPI SINGAL Menu ............................... ................................ ................................ .....92
Figure 9 SPI Clock Menu............................... ................................ ................................ .........92
Figure 40 MOSI Menu ............................... ................................................................ ..............92
Figure 41 MOSI Menu ............................... ................................................................ ..............9
Figure 42 SPI CS Menu ............................... ................................ ................................ .............9
Figure 4 SPI TRIG SET Menu ............................... ................................ ................................ ...95
Figure 44 SPI Trigger............................... ................................ ................................ .................96
Figure 45 SPI Decode function menu............................... ................................ .......................97
Figure 46 SPI Decode ............................... ................................ ................................ ...............97
Figure 47 UART SIGNAL Menu ............................... ................................ ................................ .99
Figure 48 BUS CONFIG Menu............................... ................................ ................................ ...99
Figure 49 UART TRIG SET Menu ............................... .............................................................100

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Figure 50 UART Trigger............................... ................................ ................................ ...........100
Figure 51 UART/RE2 2 DECODE Function Menu ............................... ................................ ...101
Figure 52 UART Decode............................... ................................ ................................ ..........101
Figure 5 Reference Waveform............................... ................................ .............................. 105
Figure 54 FFT Waveform In Split Mode ............................... ................................ ..................111
Figure 55 Differential Function Operation ............................... .............................................112
Figure 56 Integral without Offset............................... ................................ .......................... .11
Figure 57 Integral with Offset ............................... ................................ ............................... .114
Figure 58 Square Root............................... ................................ ................................ ............114
Figure 59 Measure Pulse Width............................... ................................ .............................116
Figure 60 Voltage Measurements ............................... ................................ ......................... .111
Figure 61 Overshoot............................... ................................ ................................ ...............112
Figure 62 Preshoot ............................... ................................ ................................ .................112
Figure 6 Time Measurements ............................... ................................ ............................. .11
Figure 64 Select the Measurement Parameter ............................... ................................ ......122
Figure 65 Added the Measurement ......................................................................................12
Figure 66 All Parameters Measurement ............................... ................................ ................124
Figure 67 Vectors Display............................... ................................ ................................ .......126
Figure 68 Dots Display............................... ................................ ................................ ............126
Figure 69 Color Temperature ............................... ................................ ................................ .127
Figure 70 Persist Set to Infinite ............................... ................................ ............................. .128
Figure 71 Intensity Set to 100% ............................... ................................ ............................ .1 0
Figure 72 Intensity Set to 10% ............................... ................................ .............................. .1 0
Figure 7 SAVE/RECALL File System............................... ................................ ...................... .1 5
Figure 74 Select Save Location............................... ................................ .............................. .1 6
Figure 75 File Name Dialogue ............................... ................................ ............................... .1 6
Figure 76 Input Keyboard............................... ................................ ................................ .......1 9
Figure 77 System Status ............................... ................................ ................................ .........142
Figure 78 Do Self Cal ............................... ................................ ..............................................14
Figure 79 Pass/Fail Test ............................... ................................ ................................ ..........145
Figure 80 LAN Setting Interface ............................... ................................ .............................150
Figure 81 Screen Test ............................... ................................ ................................ ............. 154
Figure 82 Keyboard Test ............................... ................................ ................................ .........155
Figure 8 LED Test ............................... ................................ ................................ ..................156
Figure 84 Screen Saver Interface ............................... ................................ ...........................157
Figure 85 OPTION Function Menu ............................... ................................ .........................158
Figure 86 LABEL Function Menu ............................... ................................ ........................... .158
Figure 87 Option Information ............................... ................................ ................................159
Figure 88 History ............................... ................................ ................................ ....................160
Figure 89 Send Wave Dialogue ............................... ................................ ............................. .165
Figure 90 Save Waveform Successfully ............................... ................................ ..................165
Figure 91 SETTING Function Menu ............................... ................................ ........................166
Figure 92 AWG Self Cal............................... ................................................................ ...........167

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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 Line
Only the power cord designed for the instrument and authorized by local country could be
used.
Ground the Instrument
The instrument is grounded through the protective earth conductor of the power line. 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 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 over all 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 Overvoltage Protection
Make sure that no overvoltage (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.
Keep Well Ventilation
Inadequate ventilation may cause increasing of temperature, which will eventually damage
the instrument. So keep well ventilation and inspect the intake and fan regularly.
Avoid Circuit or Components Exposed
Do not touch exposed contacts or components when the power is on.
Use proper Fuse
Use only the specified fuse.
Do Not Operate Without Covers
Do not operate the instrument with covers or panels removed.

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Do Not Operate With Suspected Failures.
If you suspect damage occurs to the instrument, have it inspected by qualified service
personnel before further operations. 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 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 on the product. These terms may appear on 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 on the product. These symbols may appear on the product:
Hazardous protective Earth Warning Test 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 within 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.
Working Environment
Temperature
Operating: 10
℃
to +40
℃
Non-operation:-20
℃
to +70
℃
Humidity
Under +35
℃
:≤90% relative humidity
+35
℃
to +40
℃
:≤60% relative humidity
WARNING
To avoid short circuit inside the instrument or electric shock, please do not
operate in humid environment.
Altitude
Operating: less than 3 Km
Non-operation: less than 15 Km

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Installation (overvoltage) Category
This product is powered by mains conforming to installation (overvoltage) category II.
WARNING
Make sure that no overvoltage (such as that caused by thunderbolt) can reach
the product, or else the operator might expose to danger of electric shock.
Installation (overvoltage) Category Definitions
Installation (overvoltage) category I refers to signal level which is applicable to equipment
measurement terminals connected to the source circuit. In these terminals, precautions
are done to limit the transient voltage to the corresponding low level.
Installation (overvoltage) category II refers to the local power distribution level which is
applicable to equipment connected to the AC line (AC power).
This oscilloscope uses fan to force cooling. Please make sure that the air intake and
exhaust areas are free from obstructions and have free air. When using the oscilloscope in
a bench-top or rack setting, provide at least 10 cm clearance beside, above and behind the
instrument for adequate ventilation.
WARNING
Inadequate ventilation may cause temperature increase which would damage
the instrument. So please keep the instrument well ventilated during operation
and inspect the intake and fan regularly.
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 solvent.
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 scarifying it.
WARNING
To avoid damages to the surface of the instrument and probe, please do
not use any corrosive liquid or chemical cleanser. 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 oscilloscope in details.
Q
uick
S
t
art
P
r
o
v
i
de
i
n
f
o
r
m
a
ti
on
a
b
out
prepa
r
a
t
i
o
n
s
b
e
f
ore
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.
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 failures of
the oscilloscope.

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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,
The contents of this chapter:
General Inspection
Appearance and Dimensions
To Prepare the Oscilloscope for Use
Front Panel Overview
Rear Panel Overview
Front Panel Function Overview
Back Panel Function Overview
User Interface
To Use the Security Lock

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General Inspection
1. Inspect the shipping container for damage.
Keep the damaged shipping container or cushioning material until the contents of the
shipment have been checked for completeness and the instrument has passed both
electrical and mechanical tests.
The consigner or carrier shall be liable for the damage to instrument resulting from
shipment. The manufacturer would not be responsible for free maintenance/rework or
replacement of the unit.
2. Inspect the instrument.
In case of any damage, or defect, or failure, notify your sales representative.
3. Check the Accessories
Please check the accessories according to the packing lists. If the accessories are
incomplete or damaged, please contact your sales representative.

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1
1
1
mm
175
mm
A
ppe
arance
a
n
d
Di
m
ens
i
o
n
s
340
mm
F
i
g
ure
1
Fr
o
nt
V
i
ew
Figure 2 Top View

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To Prepare the Oscilloscope for Use
To Adjust the Supporting Legs
Adjust the supporting legs properly to use them as stands to tilt the oscilloscope upwards
for stable placement of the oscilloscope as well as better operation and observation.
Figure 3 Adjust the Supporting Legs

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To Connect to Power Supply
The power requirements of the oscilloscope are 100-240 V, 50/60/440 Hz. Please use the
po
w
er
cord
su
p
p
l
i
e
d
w
i
t
h
t
he
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Power socket
Figure 4 To Connect to Power Supply
Power-on Inspection
When the oscilloscope is energized, press the power key at the lower-left corner of the
front panel to start the oscilloscope. During the start-up process, the oscilloscope
performs a series of self-tests and you can hear the sound of relay switching. After the
self-test is finished, the welcome screen is displayed.

User
Manual
SMO1000A-S
20
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To Connect the Probe
The manufacturer provides passive probes for the oscilloscopes. For detailed technical
information of the probes, please refer to the corresponding Probe User’s Guide.
Connect the Probe:
1. Connect the BNC terminal of the probe to a channel BNC connector of the
oscilloscope at the front panel.
2. Connect the probe tip to the circuit point to be tested and connect the ground alligator
clip of the probe to the circuit ground terminal.
Function
Inspection
1. Press the Default button on the front panel to restore the instrument to its default
configuration.
2. Connect the ground alligator clip of the probe to the ― Ground Terminal ǁ under the
probe compensation signal output terminal.
Compensation Signal Output Terminal
Ground Terminal
3. Use the probe to connect the input terminal of CH1 of the oscilloscope and the
Compensation Signal Output Terminal ǁ of the probe.
4. Press the Auto Setup softkey.
5. Observe the waveform on the display. In normal condition, the display should be a
square waveform as shown in the figure below:
Figure 5 Function Inspection