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190, rue Championnet
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Group CHAUVIN ARNOUX
F - 75018 - PARIS
Tel. +33 (0)1.44.85.44.85 - Fax +33 (0)1.46.27.73.89
X03583A00 - Ed. 01 - 09/10
Page 2
Content
Content
General Instructions
Introduction.......................................................................................4
Instrument Description
Front panel........................................................................................6
Rear panel .......................................................................................10
XDO2025 - XDO2040.............................10
Functional Description
AUTO Setup ..........................................................................................................................................11
Autoset function menu.............................12
VERTICAL System................................................................................................................................13
CH1 & CH2 function menus ........................ 14
Knobs in the Vertical mode ...........................................................15
MATH function menu.............................16
MATH function instruction.............................16
FFT function menus.............................17
Select FFT window.............................17
Measuring an FFT Spectrum using cursors.............................18
Measuring an FFT amplitude.............................18
Measuring FFT frequency.............................19
REF function menu.............................20
HORIZONTAL System..........................................................................................................................21
Knobs in Horizontal mode.............................................................22
Delayed............................................................................................22
TRIGGER System .................................................................................................................................23
Trigger System ...............................................................................23
Signal Source.............................23
Edge Trigger ...................................................................................23
Edge Trigger function menu.............................23
Trigger Setup function menu.............................24
Pulse Trigger...................................................................................25
Pulse Trigger function menus.............................25
Video Trigger ..................................................................................27
Slope Trigger ..................................................................................29
Slope Trigger function menus.............................29
Precautions and safety measures ..................................................4
Symbols on instrument....................................................................5
Guarantee, Repair, Servicing ..........................................................5
XDO2025 - XDO2040...............................6
Auto Setup, screen, symbol ..........................................................11
CH1 - CH2 Channel.........................................................................13
Vertical “POSITION” knob.............................15
Volts/div knob.............................15
MATH functions..............................................................................16
FFT Spectrum Analyser .................................................................17
Using REF .......................................................................................20
Horizontal System ..........................................................................21
Horizontal system function menu.............................21
Horizontal “POSITION” knob.............................22
Volts/div knob.............................22
Display scan mode.............................22
Video Trigger function menus.............................27
2 Dual-Channel Digital Oscilloscopes
Page 3
General instructions
Content (cont’d)
Alternative Trigger..........................................................................31
Edge Trigger function menu.............................31
Pulse Trigger function menus.............................32
Video Trigger function menus.............................33
Slope Trigger function menus ............................34
ACQUISITION System..........................................................................................................................37
DISPLAY System..................................................................................................................................38
Display System...............................................................................38
X-Y Format ......................................................................................41
MEASURE System................................................................................................................................42
Scale Measurement........................................................................42
Cursor Measurement......................................................................42
Track mode function menu.............................43
Auto mode function menu.............................44
Auto Measurement .........................................................................45
Auto mode function menu : Voltage measure.............................45
Auto mode function menu : Time measure.............................46
Auto mode function menu : Delay measure.............................46
All measurement function menu.............................47
Introduction of the measure type.............................47
STORAGE System................................................................................................................................49
Storage System...............................................................................49
Save / Recall setups to USB flash drive.............................51
Recall factory setup.............................53
Save / Recall waveform to USB flash drive.............................54
Save / Recall Reference Waveform...............................................57
UTILITY System ....................................................................................................................................58
Utility System..................................................................................58
System status .................................................................................62
Mask Setting ...................................................................................67
Technical Specifications...............................................................................................................................74
General Specifications..................................................................................................................................77
Trigger Holdoff................................................................................36
Acquiring Signal System ...............................................................37
Acquiring signal function menu.............................37
Display system function menus.............................38
Manual cursor function menu.............................42
Auto measure function menu.............................45
Save / Recall Interface.............................49
Save / Recall....................................................................................50
Save / Recall setups to device.............................50
Save / Recall waveform..................................................................53
Save / Recall waveform to device.............................53
Save picture ....................................................................................56
Print..................................................................................................62
Update Firmware ............................................................................64
Pass/Fail..........................................................................................65
Waveform Record...........................................................................69
Playback..........................................................................................70
Recorder..........................................................................................71
Dual-Channel Digital Oscilloscopes 3
Page 4
General Instructions
General Instructions
Introduction
Precautions and
safety measures
definition of
installation
categories
(cf. CEI 664-1)
You have just acquired a 2-channel digital oscilloscope :
• XDO2025, 25 MHz or
• XDO2040, 40 MHz.
This 2-channel oscilloscope provides a set of powerful features for a
wide range of applications such as production, education, maintenance,
service, research and development.
Congratulations for your choice and thank you for your trust in the
quality of our products.
This instrument conforms to safety standard NF EN 61010-1 (2001),
single insulation, and relative to electronic measurement instruments.
To obtain optimum service, read these instructions with care and comply
with the precautions for use.
Failure to comply with these warnings and/or user instructions is liable to
cause damage to the equipment and/or its components. This could be
dangerous to the user.
• This instrument has been designed for use:
- indoors,
- in a pollution degree 2 environment,
- at an altitude of less than 2000 m,
- at a temperature included between 10°C and 40°C
- with relative humidity up to 95 %.
• It can be supplied by a 240 V CAT II network.
: CAT I circuits are protected by devices designed to minimize
CAT I
transient overvoltages at a low level.
E.g.
CAT II
E.g.
CAT III
E.g.
CAT IV
E.g.
: protected electronic circuits
:CAT II circuits are domestic or similar equipment power supply
circuits that can include average value transient overvoltages.
: power supply to domestic appliances and portable tools.
: CAT III circuits are circuits for power equipment power supplies
which may include high transient overvoltages.
: machine or industrial apparatus power supply.
: CAT IV circuits are circuits that can include very high transient
overvoltages.
: energy inputs
before use
during use
• Comply with environment and storage conditions.
• Read carefully all the notes preceded by the symbol
• Connect the instrument to an outlet with a ground pin.
.
• Be sure not to obstruct the aeration points.
• As a safety measure, use only suitable cords and accessories supplied
with the instrument or type approved by the manufacturer.
• When the instrument is connected to the measurement circuits, never
touch an unused terminal.
4 Dual-Channel Digital Oscilloscopes
Page 5
General instructions
General Instructions (cont’d)
Symbols on
instrument
Guarantee
Warning: Risk of danger.
Refer to the operating manual to find out the nature of the
potential hazards and the action necessary to avoid such
hazards.
Selective sorting of waste for recycling electric and electronic
materials.
In accordance with the WEEE 2002/96/EC directive: must not
be treated as household waste.
Earth symbol
USB symbol
Fuse symbol
European Conformity
This equipment is guaranteed for 1 year against any material defect or
manufacturing faults, in conformity with the general conditions of sale.
During this period, the manufacturer may only repair the equipment. He
reserves the right to carry out repair or replacement of all or part of the
equipment.
Repair
Servicing
If the equipment is returned to the manufacturer, forward transport is at the
expense of the customer.
The guarantee does not apply in the event of:
• unsuitable use of the equipment or by association with incompatible
equipment
• modification of the equipment without the explicit authorization of
the manufacturer technical services
• operation by a person not approved by the manufacturer
• adaptation to a specific application not provided for in the
equipment definition or in the operating instructions impact
• fall or flooding.
Return your instrument to your distributor for any work to be done within or
outside the guarantee.
• Turn the instrument off.
• Clean it with a damp cloth and soap.
• Never use abrasive products or solvents.
• Allow drying before any further use.
Dual-Channel Digital Oscilloscopes 5
Page 6
Instrument Description
Instrument Description
Front panel
XDO2025
1
18
14
13
3
16
15
12
10
11
9
8
7
6
2
XDO2040
17
4
5
18
17
16
15
14
13
12
11
10
9
8
7
1
2
3
4
6
5
6 Dual-Channel Digital Oscilloscopes
Page 7
Instrument Description
Instrument Description (cont’d)
Front panel (cont’d)
1 - POWER
2 - USB
3 - MENU
4 - CH1 - CH2
5 - EXT TRIG
6 - PROBE
7 - VERTICAL
8 - HORIZONTAL
9 - TRIGGER
10 - RUN / STOP
11 - AUTO
Power ON / Power OFF
USB HOST interface connection
MENU ON / OFF
Input connectors for waveform display
Input connector for an external trigger source. Use the Trigger Menu to
select the “Ext” or “Ext/5” trigger source.
Voltage probe compensation output and ground. Use to electrically
match the probe to the oscilloscope input circuit.
Vertical system key pad (see p. 7 and 12).
Horizontal system key pad (see p. 7 and 20).
Trigger system key pad (see p. 8 and 22).
Continuously acquires waveforms or stops the acquisition.
Automatically sets the oscilloscope controls to produce a usable display
of the input signals.
12 - SINGLE
13 - HELP
14 - DEFAULT SETUP
15 - MENU
16 - UNIVERSAL
KNOB
17 - PRINT
18 - Keys (x 5)
Acquires a single waveform and then stops.
Enters the online help system.
Recalls the factory setup (language, saved files, contrast, calibration
data).
Menu key pad (see p. 8).
Adjusts holdoff, frequency upper and lower limit (and that of the digital
filter), x mask and y mask in pass / fail function, record or play back
frame in waveform record menu, storage position of setups,
waveforms, pictures. This moves cursors, sets pulse width and video
linage, selects menu option.
Print menu (see p. 61).
Menu scroll keys
Dual-Channel Digital Oscilloscopes 7
Page 8
Instrument Description
Instrument Description (cont’d)
VERTICAL System
23
21
20
22
23
20
19 - POSITION
20 - CH1 - CH2 keys
21 - MATH
22 - REF
23 - CH1 - CH2 knobs
HORIZONTAL System
24 - POSITION
19
19
Volt/div. knobs (see p. 14).
Channel 1, Channel 2 menu control button
MATH function control button
Reference waveforms control button, saves waveforms to a non volatile
memory.
Vertical position knobs (see p. 14).
26
25
24
S/div knob (see p. 21).
25 - HORI MENU
26 - HORI knob
Displays the horizontal menu.
Horizontal position knob (see p. 21).
TRIGGER System
27
28
29
30
27 - TRIG MENU
28 - SET TO 50%
29 - FORCE
Activates the Trigger menu.
Stabilizes a waveform quickly.
Use the FORCE button to complete the current waveform acquisition
whether the oscilloscope detects a trigger or not. This is useful for Single
acquisitions and Normal trigger mode.
30 - LEVEL knob
Sets the corresponding signal voltage of trigger point, press the knob to set
the trigger level to zero.
8 Dual-Channel Digital Oscilloscopes
Page 9
Instrument Description
Instrument Description (cont’d)
MENU key pad
31 - CURSORS
32 - ACQUIRE
33 - SAVE/RECALL
31
35
34
Displays the cursor menu (see p. 41).
Vertical Position controls adjust cursor position while displaying the
Cursor Menu and the cursors are activated. Cursors remain displayed
(unless the “Type” option is set to “Off”) after leaving the Cursor menu
but are not adjustable.
Displays the Acquiring signal system
(see p. 35).
Displays the Save/Recall Menu for setups and waveforms (see p. 48).
33
32
36
34 - MEASURE
35 - DISPLAY
36 - UTILITY
Displays the Automatic Measurement menu
Displays the Display menu
Displays the Utility system
(see p. 37).
(see p. 57).
(see p. 41).
Dual-Channel Digital Oscilloscopes 9
Page 10
Instrument Description (cont’d)
Instrument Description
Rear panel
37 - Pass / Fail
38 - RS 232
XDO2025
39 - USB
38
37
PASS / FAIL output
RS 232 connector
Back USB connector
40
39
40 - Plug
Power input connector
XDO2040
41
44
42
43
41 - Pass / Fail
PASS / FAIL output
42 - RS 232
43 - USB
44 - Plug
RS 232 connector
Back USB connector
Power input connector
10 Dual-Channel Digital Oscilloscopes
Page 11
Functional Description
Functional Description
AUTO Setup
Auto Setup
Autoset determines the trigger source based on the following conditions:
● If multiple channels have signals: channel with the lowest frequency
signal.
● No signals found: the lowest-numbered channel displayed when
Autoset was invoked.
● No signals found and no channels displayed: the oscilloscope will
display and use channel 1.
Input a signal to Channel 1, press the “Auto” button.
Multi-cycle sine
Single-cycle sine
Rising edge
Falling edge
Undo Setup
Auto set the screen and display
several cyc signal.
Set the screen and auto display
single cyc signal.
Auto set and show the rising
time.
Auto set and show the falling
time.
Causes the oscilloscope to recall
the previous setup.
Dual-Channel Digital Oscilloscopes 11
Page 12
Functional Description
AUTO Setup (cont’d)
Functional Description
Autoset
function menu
Function Setting
Acquire Mode Adjusted to Sampling
Display Format Y-T
Display Type Set to Dots for a video signal, set to Vectors for
an FFT spectrum; otherwise, unchanged
Vertical
Coupling
Bandwidth
Limit
V/div Adjusted
VOLTS/DIV
adjustability
Signal inverted Off
Horizontal
position
Adjusted to DC or AC according to the input
signal
Off (full)
Coarse
Centre
S/div Adjusted
Trigger type Edge
Trigger source Auto detect the channel which has the input
signal
Trigger slope Rising
Trigger mode Auto
Trigger
coupling
Trigger holdoff Minimum
Trigger level Set to 50%
DC
12 Dual-Channel Digital Oscilloscopes
Page 13
Functional Description
Functional Description
VERTICAL System
CH1 - CH2 Channel
CH1 & CH2
function menu 1
Option Setting Description
Coupling DC
BW limit
(XDO2040
only)
Volts/Div
Probe 1 x
AC
GND
On
Off
Coarse
Fine
5 x
10 x
100 x
500 x
1000 x
DC passes both AC and DC components of
the input signal.
AC blocks the DC component of the input
signal and attenuates signals below 10 Hz.
GND disconnects the input signal.
Limits the bandwidth to reduce display
noise; filters the signal to reduce noise and
other unwanted high frequency
components.
Selects the resolution of the Volts/Div knob
Coarse defines a 1-2-5 sequence.
Fine changes the resolution to small steps
between the coarse settings
(higher than 20 MHz are obstructed).
Set to match the type of probe you are
using to ensure correct vertical readouts.
Dual-Channel Digital Oscilloscopes 13
Page 14
Functional Description
VERTICAL System (cont’d)
CH1 & CH2
function menu 2
Functional Description
Digital filter
function menu
Option Setting Description
Invert
Digital
Filter
Option Setting Description
Digital
Filter
Type
Upper_limit
on
off
Press this button to enter the “Digital Filter
on
off
Turn on invert function.
Turn off invert function.
Turn the “Universal knob” to adjust them.
menu”.
Turn on the digital filter.
Turn off the digital filter.
Turn the “Universal knob” to adjust them.
Setup as LPF (Low Pass Filter).
Setup as HPF (High Pass Filter).
Setup as BPF (Band Pass Filter).
Setup as BRF (Band Reject Filter).
Turn the “Universal” knob to set upper limit.
Lower_limit Turn the “Universal” knob to set lower limit.
Return Return the digital filter main menu.
14 Dual-Channel Digital Oscilloscopes
Page 15
Functional Description
Functional Description
VERTICAL System (cont’d)
Knobs in the
« VERTICAL » mode
Vertical “POSITION”
knob
Volts/div knob
1. Use the Vertical “POSITION” knobs to move the channel waveforms
up or down on the screen.
2. When you adjust the vertical position of channels waveforms, the
vertical position information will be displayed on the bottom left of
screen.
3. Press the vertical “POSITION” knob to set the vertical position to
zero.
1. Use the “Volts/div” knobs to control how the oscilloscope amplifies or
attenuates the source signal of channel waveforms. When you turn
the “volts/div” knob, the oscilloscope increases or decreases the
vertical size of the waveform on the screen with respect to the
ground level;
2. When you press the “Volt/div” Knob, you can switch “Volt/div” option
between “Coarse” and “Fine”. The vertical scale is ensured by the
1-2-5 step in Coarse mode. In the fine mode, the knob changes the
Volts/Div scale into small steps between the coarse settings.
Dual-Channel Digital Oscilloscopes 15
Page 16
Functional Description
VERTICAL System (cont’d)
Functional Description
MATH functions
function menu
MATH
This shows the results after +, -, ∗ and FFT operation of the CH1 and
CH2.
Press the MATH button to display the waveform math operations.
Function Setting Description
Operation +, -, *, FFT Choose MATH operations.
CH1 Invert on
off
CH2 Invert on
off
Invert the CH1 waveform.
Turn off CH1 Invert function.
Invert the CH2 waveform.
Turn off CH2 Invert function.
By rotating the universal knob to adjust the
vertical position of waveform after
operation
By rotating the universal knob to adjust the
MATH function
Operation Setting Description
vertical range of waveform after operation
instruction
+ CH1+CH2 CH1 adds CH2.
-
CH1-CH2 CH2 is subtracted from CH1.
CH2-CH1 CH1 is subtracted from CH2.
* CH1*CH2 CH1 multiplies CH2.
/
CH1/CH2 CH1 divides CH2.
CH2/CH1 CH2 divides CH1.
FFT Fast Fourier Transform.
16 Dual-Channel Digital Oscilloscopes
Page 17
Functional Description
Functional Description
VERTICAL System (cont’d)
FFT Spectrum
Analyser
FFT function menu 1
FFT function menu 2
The FFT process mathematically converts a time-domain signal into its
frequency components.
You can take two measurements on FFT spectrums: magnitude (in dB)
and frequency (in Hz).
FFT Option Setting
Source CH1
CH2
Window Hanning
Hamming
Rectang.
Blackman
FFT ZOOM 1 x
2 x
5 x
FFT Option Setting
Scale
Display
10 x
Vrms Set Vrms to be the Vertical Scale
dBVrms Set dBVrms to be the vertical
Split
Full screen
Description
Select this channel as the FFT source.
Select FFT window types.
Changes the horizontal magnification of
the FFT display.
Uses cursors to take measurements of
the FFT spectrum.
Description
unit.
Scale unit.
Display FFT waveform on half
screen.
Display FFT waveform on full
screen.
Select FFT window
Window
Rectangular
Hanning
Hamming
Blackman Best magnitude, worst
Speciality
Best frequency resolution,
worst magnitude resolution.
This is essentially the same
as no window.
Better frequency, poorer
magnitude accuracy than
Rectangular. Hamming has
slightly better frequency
resolution than Hanning.
frequency resolution.
Satisfied Test content
Symmetric transients or
bursts.
Equal-amplitude sine
waves with fixed
frequencies. Broadband
random noise with a
relatively slowly varying
spectrum.
Sine, periodic, and
narrow-band random
noise. Asymmetric
transients or bursts.
Single frequency
waveforms, to find higher
order harmonics.
Dual-Channel Digital Oscilloscopes 17
Page 18
Functional Description
VERTICAL System (cont’d)
Functional Description
Measuring an FFT
Spectrum using
cursors
Measuring an
FFT amplitude
You can take two measurements on FFT spectrums : magnitude (in dB)
and frequency in Hz.
Once viewed the spectrum :
1. Press the “CURSOR” button to enter “Cursor” menu.
2. Press “Cusor Mode” to select “Manual”.
3. Press “Type” to select “Voltage”.
4. Press “Source” to select “MATH”.
5. Press “CurA”, turn the “Universal” knob to move Cursor A to the
highest point of the FFT waveform.
6. Press “CurB”, turn the “Universal” knob to move Cursor B to the
lowest point of the FFT waveform.
7. The amplitude (∆T) is displayed at the top right of the screen.
18 Dual-Channel Digital Oscilloscopes
Page 19
Functional Description
Functional Description
VERTICAL System (cont’d)
Measuring
FFT frequency
1. Press the CURSOR button.
2. Press “Cursor Mode” to select “Manual”.
3. Press “Type” to select “Time”.
4. Press “Source” to select “MATH”.
5. Press “Cur1”, turn the “Universal” button to move Cursor 1 to
the highest position of the FFT waveform.
6. The value of Cur1 displaying on the top right of the screen is
FFT highest Frequency. This frequency should be the same as
input signal frequency.
Note
To display FFT waveforms with a large dynamic range, use the dBVrms
scale. The dBVrms scale displays component magnitudes using a log
scale.
Dual-Channel Digital Oscilloscopes 19
Page 20
Functional Description
VERTICAL System (cont’d)
Functional Description
Using REF
REF function menu
The reference control saves waveforms to a non-volatile waveform
memory. The reference function becomes available after a waveform
has been saved.
Press the « REF » button.
Option Setting Introduction
Source CH1
CH2
CH1 off
CH2 off
REFA
REFB
Save Stores source waveform to the chosen
REFA/REFB on
Choose the reference location to store or
off
Choose the waveform display to store.
recall a waveform.
reference location.
Recall the reference waveform on the
screen.
Turn off the reference waveform.
20 Dual-Channel Digital Oscilloscopes
Page 21
Functional Description
Functional Description
HORIZONTAL System
HORIZONTAL System
Horizontal system
function menu
Note
Option Setting Description
Delayed On
MemDepth Normal
Off
Long
Mem
Turn on this function in order to simultaneously
display the main waveform time base on the top
half of the screen and the window time base
waveform on the bottom half of the screen
Turn off this function in order to display only the
main waveform time base on the screen.
Set memory depth to normal (32 kpts).
Set memory depth to long Memory depth in order
to get more waveform dots (2 Mpts).
Only XDO2040 series supports Long Memory.
Dual-Channel Digital Oscilloscopes 21
Page 22
Functional Description
HORIZONTAL System (cont’d)
Functional Description
Knobs in the
« Horizontal » mode
Horizontal
“POSITION” knob
S/div knob
Display scan mode
You can use the horizontal controls to change the horizontal scale and
position of waveforms.
1. Adjust the horizontal position of all channels and math waveforms
(the position of the trigger relative to the centre of the screen). The
resolution of this control varies with the time base setting.
2. When you press the horizontal “POSITION” knob, you can set the
horizontal position to zero.
1. Using to change the horizontal time scale to magnify or compress
the waveform. If waveform acquisition is stopped (using the RUN/STOP
or SINGLE button), turn the S/div knob to expand or compress the
waveform.
2. Select the horizontal time/div (scale factor) for the main or the
window time base. When Window Zone is enabled, it changes the width
of the window zone by changing the window time base.
When the SEC/DIV control is set to 100 ms/div or slower and the
trigger mode is set to Auto, the oscilloscope enters the scan acquisition
mode. In this mode, the waveform display updates from left to right.
There is no trigger or horizontal position control of waveforms during
scan mode.
Delayed
Follow these steps
Use the Window Zone option to define a segment of a waveform to see
more detail. The Window time base setting cannot be set slower than
the Main time base setting.
You can turn the Horizontal Position and SEC/DIV controls to enlarge
or diminish waveforms in the Window Zone.
if you want to see a section of the waveform in detail :
1. Press the “HORI MENU” button to enter the “Horizontal menu”.
2. Turn the “S/div” knob to change the main timebase scale.
3. Press the “Delayed” option button to select “On”.
Turn the “Horizontal Position” knob (adjust window’s position) to select
the window that your need and expanded window waveform display on
the below half screen at the same time.
22 Dual-Channel Digital Oscilloscopes
Page 23
Functional Description
Functional Description
TRIGGER System
TRIGGER System
Signal source
Edge Trigger
EdgeTrigger
function menu
The trigger determines when the oscilloscope starts to acquire data and
to display a waveform.
XDO series has five trigger type : Edge, Video, Pulse, Slope, Alternative
The source can be any signal connected to a channel BNC, to the EXT
TRIG BNC or the AC power line (available only with Edge triggers).
Option Setting Description
Type Edge With Edge highlighted, the rising or falling edge of the
input signal is used for the trigger.
Source
Slope
Mode
CH1
CH2
EXT Does not display the trigger signal; the Ext option uses
EXT/5 Same as Ext option, but attenuates the signal by a
AC Line This selection uses a signal derived from the power
Auto The waveform refreshes a high-speed whether the
Normal The waveform refreshes when the trigger condition is
Single The oscilloscope acquires a waveform when the trigger
Triggers on a channel whether or not the waveform is
displayed.
the signal connected to the EXT TRIG front-panel BNC
and allows a trigger level range of -1.2V to +1.2V.
factor of five, and allows a trigger level range of +6V to
-6V.This extends the trigger level range.
line as the trigger source; trigger coupling is set to DC
and the trigger level to 0V.
Trigger on Rising edge of the trigger signal.
Trigger on Falling edge of the trigger signal.
Trigger on Rising and Falling edge of the trigger signal.
trigger condition is satisfied or not
satisfied and waits for next trigger event occurring
when the trigger condition is not satisfied.
condition is satisfied and then stops.
Set up Enter the “Trigger Setup Menu”.
Dual-Channel Digital Oscilloscopes 23
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Functional Description
TRIGGER System (cont’d)
Functional Description
Trigger Setup
function menu
Option Setting Description
Coupling
Holdoff
Holdoff
Reset
Return Return the first page of “Trigger main
DC Passes all components of the signal
AC
HF Reject
LF Reject
Using the “universal” knob to adjust holdoff
Reset holdoff time to 100 ns.
Blocks DC components and attenuates
signals below 10 Hz.
Attenuates the high-frequency components
above 80 kHz.
Blocks the DC component and attenuates
the low-frequency components below
300 kHz.
time (sec), the holdoff value is displayed.
menu”.
24 Dual-Channel Digital Oscilloscopes
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Functional Description
Functional Description
TRIGGER System (cont’d)
Pulse Trigger
Pulse Trigger
function menu 1
Option Setting Description
Type Pulse Select the pulse to trigger
Source CH1
When (Positive pulse width
Set Width 20.0ns to 10.0s Selecting this option can
CH2
EXT
EXT/5
less than pulse width
setting)
(Positive pulse width
larger than pulse width
setting)
(Positive pulse width
equal to pulse width
setting)
(Negative pulse width
less than pulse width
setting)
(Negative pulse width
larger than pulse width
setting)
(Negative pulse width
equal to pulse width
setting)
the pulse match the
trigger condition.
Select input signal
source.
Select how to compare the
trigger pulse relative to the
value selected in the Set
Pulse Width option.
turn the universal to set up
the pulse width.
Dual-Channel Digital Oscilloscopes 25
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Functional Description
TRIGGER System (cont’d)
Pulse Trigger
function menu 2
Functional Description
Option Setting Description
Type Pulse Select the pulse to trigger the pulse match
the trigger condition.
Mode
Set up Enter the “Trigger setup menu”.
Auto
Normal
Single
Select the type of triggering; Normal mode
is best for most Pulse Width trigger
applications.
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Functional Description
Functional Description
TRIGGER System (cont’d)
Video Trigger
Video Trigger 1
function menu
Option Setting Instruction
Type Video When you select the
Source
Polarity
Sync
CH1
CH2
EXT
EXT/5
(normal)
(inverted)
Line Num
All lines
Odd field
Even Field
video type, set the AC
coupling, it then becomes
possible to trigger the
NTSC, PAL and SECAM
video signal.
Select the input source to
be the trigger signal.
Ext and Ext/5 use the signal
applied to the EXT TRIG
connector as the source.
Normal triggers on the negative
edge of the sync pulse.
Inverted triggers on the positive
edge of the sync pulse.
Select appropriate video sync.
Dual-Channel Digital Oscilloscopes 27
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Functional Description
Functional Description
TRIGGER System (cont’d)
Video Trigger 1
function menu
Option Setting Instruction
Type Video When you select the video type, set
Standard NTSC
Mode
Pal/
Secam
Auto Use this mode to let the acquisition run in
Normal Use this mode when you want to see only
Single When you want the oscilloscope to acquire a
the AC coupling, then you could trigger
the NTSC, PAL and SECAM video
signal.
Select the video standard for sync and line
number count.
the absence of a valid trigger; This mode
allows an untriggered, scanning waveform at
100 ms/div or slower time base settings.
valid triggered waveforms; when you use this
mode, the oscilloscope does not display a
waveform until after the first trigger.
single waveform, press the “SINGLE ”button.
Set up Enter the “Trigger setup menu”.
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Functional Description
Functional Description
TRIGGER System (cont’d)
Slope Trigger
Slope Trigger
function menu 1
Option Setting Instruction
Type Slope Trigger on positive slope of
negative slope according to
setup time of the oscilloscope.
Source CH1
CH2
EXT
EXT/5
When
Time
(Set time)
Select trigger source.
Select trigger condition.
Turn the “Universal” knob to set
slope time. Time setup range is
20 ns -10 s.
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Functional Description
TRIGGER System (cont’d)
Functional Description
Slope Trigger
function menu 2
Option Setting Instruction
Type Slope Trigger on positive slope of
negative slope according to
setup time of the oscilloscope.
Vertical
Mode
Auto
Normal
Single
Select the trigger level that can
be adjusted by “LEVEL” knob.
You can adjust “LEVEL A”,
“LEVEL B” or adjust them at the
same time.
Use this mode to let the acquisition
run in the absence of a valid trigger;
This mode allows an untriggered,
scanning waveform at 100 ms/div or
slower time base settings.
Use this mode when you want to see
only valid triggered waveforms; when
you use this mode, the oscilloscope
does not display a waveform until after
the first trigger.
when you want the oscilloscope to
acquire a single waveform, press the
“SINGLE ”button.
Set up
30 Dual-Channel Digital Oscilloscopes
Enter the “Trigger setup menu”.
Page 31
Functional Description
In this mode you can observe two irrelative
Functional Description
TRIGGER System (cont’d)
Alternative Trigger
Edge Trigger
function menu
The trigger signal comes from two vertical channels when you use the
alternative trigger. In this mode, you can observe two irrelative signals
at the same time. You can select different trigger types for two vertical
signals and selected types cover edge, pulse, video and slope trigger.
Trigger information for the two channel signals is displayed at the
bottom right of the screen.
Option Setting Instruction
Type Alternative The trigger signal comes from two vertical
channels when you use alternative trigger.
signals at the same time.
Source
Mode Edge
Slope
Set up Enter the “Trigger setup menu”.
CH1
CH2
Set trigger type information for CH1 signal
Set trigger type information for CH2 signal
Set trigger type of the vertical channel
signal to Edge
Triggering on rising edge.
Triggering on falling edge.
Triggering on rising edge and falling edge.
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Functional Description
TRIGGER System (cont’d)
Functional Description
Pulse Trigger
function menu 1
Option Setting Instruction
Type Alternative The trigger signal comes from two vertical
channels when you use alternative trigger.
In this mode, you can observe two
irrelative signals at the same time.
Source
Mode Pulse
When
CH1
CH2
Set trigger type information for CH1 signal
Set trigger type information for CH2 signal
Set trigger type of the vertical channel
signal to Pulse trigger.
Select how to compare the trigger pulse
relative to the value selected in the Set
Pulse Width option.
Pulse Trigger
function menu 2
Option Setting Description
Set
Width
Set up Enter the “Trigger Setup Menu”
20.0ns ∼10.0s
Selecting this option can turn the
universal to set up the pulse width.
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Functional Description
Functional Description
TRIGGER System (cont’d)
Video Trigger
function menu 1
Option Setting Instruction
Type Alternative The trigger signal comes from two vertical
Source CH1
Mode Video
Polarity
CH2
(normal)
(inverted)
channels when you use alternative trigger.
In this mode, you can observe two non-
related signals at the same time.
Set trigger type information for CH1 signal
Set trigger type information for CH2 signal
Set trigger type of the vertical channel
signal to Video trigger.
Normal triggers on the negative edge of the
sync pulse.
Inverted triggers on the positive edge of the
sync pulse.
Video Trigger
function menu 2
Option Setting Instruction
Sync
Standard NTSC
Line Num
All lines
Odd field
Even Field
Pal/Secam
Select appropriate video sync.
Select the video standard for sync and line
number count.
Dual-Channel Digital Oscilloscopes 33
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Functional Description
TRIGGER System (cont’d)
Functional Description
Slope Trigger
function menu 1
Option Setting Instruction
Type Alternative The trigger signal comes from two vertical
Source
Mode Slope
When
CH1
CH2
channels when you use alternative trigger.
In this mode, you can observe two non-
related signals at the same time.
Set trigger type information for CH1 signal
Set trigger type information for CH2 signal
Set trigger type of the vertical channel
signal to slope trigger.
Select slope trigger condition.
Slope Trigger
function menu 2
Option Setting Instruction
Time
Vertical
(Set time)
Turn the “Universal” knob to set the
slope time. Time setup range is
20 ns - 10 s.
Select the trigger level that can be
adjusted by “LEVEL” knob. You can
adjust “LEVEL A”, “LEVEL B” or adjust
them at the same time.
Set up Enter the “Trigger setup menu”.
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Functional Description
Functional Description
TRIGGER System (cont’d)
Follow these steps
to observe two irrelative channel signals :
1. Input two irrelative signals to channel 1 and channel 2.
2. Press the AUTO button.
3. Press TRIG MENU to enter “trigger menu”.
4. Press “Type” to select “Alternative”.
5. Press “Source” to select “CH1”.
6. Press “S/div” to optimize waveform display.
7. Press “Mode” to select “Edge”, “Pulse”, “Slope” or “Video”.
8. Set the trigger according to trigger edge.
9. Press “Source” to select “CH2”.
10. Turn “S/div” to optimize waveform display.
11. Repeat steps 7 and 8.
Dual-Channel Digital Oscilloscopes 35
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Functional Description
TRIGGER System (cont’d)
Functional Description
Trigger Holdoff
You can use the Trigger Holdoff function to produce a stable display of
complex waveforms. Holdoff is the time between when the oscilloscope
detects one trigger and when it is ready to detect another one.
If you want to change the holdoff time, follow these steps:
1. Press the “TRIG MENU” button to show the “TRIG Menu”.
2. Press “Type” to select trigger type.
3. Press “Set up” to enter the “Trigger setup menu”.
4. Press “Holdoff” and turn the “Universal” knob to change the
holdoff time until the waveform trigger steadily.
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Functional Description
Functional Description
ACQUISITION System
Acquiring Signal
System
Acquiring signal
function menu
Sin/x
When you acquire a signal, the oscilloscope converts it into a digital
form and displays a waveform. The acquisition mode defines how the
signal is digitized and the time base setting affects the time span and
level of detail for the acquisition.
Press the “ACQUIRE” button.
Option Setting Description
Acquisition
Averages
Sampling Use for sampling and accurately display
most of the waveform.
Peak
Detect
Detect the noise and decrease the
possibility of aliasing.
Average Use to reduce random or uncorrelated
noise in the signal display.
4, 16, 32
64, 128,
Select number of averages.
256
Sin/x
x
x
Mode Equ time
Sin/x
x
Real time
Sinusoïdal Interpolation
Linear Interpolation
Set the Sampling mode to Equ time.
The equivalent time sampling mode can
achieve up to 20 ps of horizontal
resolution (equivalent to 50 GSa/s). This
mode is good for observing repetitive
waveforms.
Set the Sampling mode to Real time.
In “Real time” mode, turn the “S/div” knob
to display the real time sampling rate at
corresponding time base scale; In “Equ
time” mode, turn the “S/div” knob to
display the equ time sampling rate at
corresponding time base scale”.
Sa Rate Display system sampling rate.
Dual-Channel Digital Oscilloscopes 37
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will be
Functional Description
DISPLAY System
Functional Description
DISPLAY System
Display system
function menu 1
Press the “DISPLAY” button.
Option Setting Description
Type Vectors
Dots
"Vectors" fills the space between
adjacent sample points in the
display.
Dots : display sample points
Persist
Intensity
Brightness
Off
1 sec
2 sec
5 sec
Infinite
<Intensity>
<Intensity>
Directly.
Sets the length of time for which
each displayed sample point
displayed.
Set waveform intensity.
Set grid brightness.
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Functional Description
Functional Description
DISPLAY System (cont’d)
Display system
function menu 2
Option Setting Description
Format
YT
XY
YT format displays the vertical
voltage in relation to time
(horizontal scale).
XY format displays a dot each
time a sample is acquired on
channel 1 and channel 2.
Screen Normal
Inverted
Grid
Menu
Display
2 sec
5 sec
10 sec
20 sec
Infinite
Set to normal mode.
Set to invert colour display
mode.
Display grids and axes on the
screen.
Turn off the grids.
Turn off the grids and axes.
Set menu display time on screen.
Dual-Channel Digital Oscilloscopes 39
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Functional Description
DISPLAY System (cont’d)
Functional Description
Display system
function menu 3
Option Setting Description
Skin Classical
Modern
Tradition
Succinct
Set up screen style.
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Functional Description
Functional Description
DISPLAY System (cont’d)
X-Y Format
Operation steps
Use the XY format to analyze phase differences. The format plots the
voltage on channel 1 against the voltage on channel 2, where channel 1
is the horizontal axis and channel 2 is the vertical axis. The oscilloscope
uses the untriggered Sample acquisition mode and displays data as dots.
● Channel 1 “Volt/div” and vertical “POSITION” set up the
horizontal scale and position.
● Channel 2 “Volt/div” and vertical “POSITION” set up the
horizontal scale and position.
● Turn the “S/div” knob to adjust the sampling rate
(Range : 5 kS/s 200 MS/s).
Option Setting Description
Cursor Mode Manual In this menu, set the manual cursor
measure.
Type Voltage
Time
Use cursor to measure voltage
parameters.
■ Voltage Cursor: Voltage
cursors appear as horizontal lines
on the display and measure the
vertical parameters.
Source
Cur A
Cur B
Use cursor to measure time
parameters.
■ Time Cursor: Time cursors
appear as vertical lines on the
display and measure the horizontal
parameters.
CH1
CH2
MATH
REFA
REFB
Select this option turn the “Universal”
Select this option turn the “Universal”
Select input signal channel.
knob to adjust cursor A.
knob to adjust cursor B.
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Functional Description
MEASURE System
Functional Description
Scale Measurement
Cursor Measurement
Manual Cursor
function menu
The oscilloscope displays the voltage in relation to time and tests the
wave form displayed. There are scale, cursor and auto measure modes.
This method allows you to make a quick visual estimate.
The cursor measurement has three modes: Manual, Track and Auto.
Press the “CURSOR” button.
Option Setting Description
Cursor Mode Manual In this menu, set the manual cursor
Type Voltage
Time
Source CH1
CH2
MATH
REFA
measure.
Use cursor to measure voltage
parameters.
Use cursor to measure time
parameters.
Select input signal channel.
REFB
knob to adjust cursor A.
knob to adjust cursor B.
Cur A
Cur B
Select this option turn the “Universal”
Select this option turn the “Universal”
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Functional Description
Functional Description
MEASURE System (cont’d)
Track mode
function menu
Option Setting Description
Cursor Mode
Cursor A
Cur B
.
Track
CH1
CH2
NONE
CH1
CH2
NONE
In this mode, set track cursor measure.
Set the input signal channel that the
Cursor A will measure.
Set the input signal channel that the
Cursor B will measure.
Cur A
Cur B
In this mode, the screen displays two cross cursors. The cross cursor
sets the position on the waveform automatically. You can adjust the
cursor’s horizontal position on the waveform by turning the “Universal”
knob. The oscilloscope displays the values on the top right of the screen.
Select this option, turn the “Universal”
knob to adjust horizontal coordinate of
Cursor A.
Select this option, turn the “Universal”
knob to adjust horizontal coordinate of
Cursor B.
Dual-Channel Digital Oscilloscopes 43
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Functional Description
MEASURE System (cont’d)
Functional Description
Auto mode
function menu
Option Setting Description
Cursor Mode Auto Set to auto cursor measure mode.
Follow these steps
This mode will take effect with automatic measurements.
to perform auto cursor measurements :
1. Press the CURSOR button to enter “Cursor measure menu”.
2. Press the “Cursor Mode” option button to select “Auto”.
3. Press the “MEASURE” button to enter “Auto cursor measure
mode menu” to select the parameter that you want to measure.
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Functional Description
Functional Description
MEASURE System (cont’d)
Auto Measurement
Auto measure
function menu 1
Press the ‘MEASURE’ button for the Automatic Test.
There are three auto measurement types: Voltage Measure, Time
Measure and Delay Measure. There are 32 measure parameters.
Option Instruction
Voltage Press this button to enter the Voltage measure menu.
Time Press this button to enter the Time measure menu.
Delay Press this button to enter the Delay measure menu.
All Mea Press this button to enter the All Measurement menu.
Return Press this option button to return the home page of the
auto measure menu.
Auto measure
function menu 2 :
Voltage measure
menu
Option Setting Instruction
Source CH1 CH2 MATH
REFA REFB
Type Vmax, Vmin, Vpp, Vamp,
Vtop, Vbase, Cycle Mean,
Mean, Cycle Vrms, Vrms,
ROVShoot, FOVShoot,
RPREShoot, FPREShoot
Return Return to the first page of
Select input signal source
for Voltage measure.
Press the “Type” button or
turn the “Universal” knob to
select Voltage measure
parameter.
Display the corresponding
icon and measure value of
your selected Voltage
measure parameter.
auto measurement menu.
Dual-Channel Digital Oscilloscopes 45
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Functional Description
MEASURE System (cont’d)
Functional Description
Auto measure
function menu 3
Time measure
menu
Auto measure
function menu 4
Delay measure
menu
Option Setting Instruction
Source CH1 CH2 MATH
REFA REFB
Type Rise Time Fall Time Freq
Period BWidth +Width
-Width +Duty -Duty
Return Return to the first page of
Select input signal source
for Voltage measure.
Press the “Type” button or
turn the “Universal” knob to
select Voltage measure
parameter.
Display the corresponding
icon and measure value of
your selected Voltage
measure parameter.
auto measurement menu.
Option Setting Instruction
Source CH1 CH2 MATH
REFA REFB
Type Phase FRR FRF FFR
FFF LRR LRF LFR LFF
Return Return to the first page of
Select input signal source for
Delay measure.
Press the “Type” button or
turn the “Universal” knob to
select Delay measure
parameter.
Display the corresponding
icon and measure value of
your selected Delay measure
parameter.
auto measurement menu.
46 Dual-Channel Digital Oscilloscopes
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Functional Description
Functional Description
MEASURE System (cont’d)
All measurement
function menu
Option Setting Description
Source CH1
Select input signal channel.
CH2
Voltage On
Off
Turn on the all measurement function to
measure voltage parameters.
Turn off the all measurement function to
measure voltage parameters.
Time On
Off
Turn on the all measurement function to
measure Time parameters.
Turn off the all measurement function to
measure Time parameters.
Delay On
Off
Turn on the all measurement function to
measure Delay parameters.
Turn off the all measurement function to
measure Delay parameters.
Return Return to the “All Measure main menu”.
Introduction of the
measure type
Measure Type Description
Vmax
Vmin
Vpp
Vtop
Vbase
Vamp
Vavg
Mean
Crms
The most positive peak voltage measured over the
entire waveform.
The most negative peak voltage measured over the
entire waveform.
Measures the absolute difference between the
maximum and minimum peaks of the entire waveform.
Measures the highest voltage over the entire waveform.
Measures the lowest voltage over the entire waveform.
Voltage between Vhig and Vlow of a waveform.
The arithmetic mean over the first cycle in the
waveform.
The arithmetic mean over the entire waveform.
The true Root Mean Square voltage over the first cycle
in the waveform.
Vrms
The true Root Mean Square voltage over the entire
waveform.
Dual-Channel Digital Oscilloscopes 47
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Functional Description
MEASURE System (cont’d)
Functional Description
All measurement
function menu
(cont’d)
ROVShoot
FOVShoot
RPREshoot
FPREshoot
Rise Time
Fall Time
BWid
+ Wid
- Wid
+ Duty
- Duty
Phase
Defined as (Vmax-Vhig)/Vamp after the waveform
rising.
Defined as (Vmin-Vlow)/Vamp after the waveform
falling.
Defined as (Vmin-Vlow)/Vamp before the waveform
rising.
Defined as (Vmax-Vhig)/Vamp before the waveform
falling.
Rise Time Measures the time between 10% and
90% of the first rising edge of the waveform.
Fall Time Measures the time between 90% and
10% of the first falling edge of the waveform.
The duration of a burst.
Measured over the entire waveform.
+ Width Measures the time between the first rising edge
and the next falling edge at the waveform 50% level.
-Width Measures the time between the first falling edge
and the next rising edge at the waveform 50% level.
Measures the first cycle waveform.
Positive Duty Cycle is the ratio between positive pulse
width and period.
Measures the first cycle waveform.
Negative Duty Cycle is the ratio between negative pulse
width and period.
The amount one waveform leads or lags another in
time. Expressed in degrees, where 360 degrees
comprise one waveform cycle.
FRR
FRF
FFR
FFF
LRR
LRF
LFR
LFF
The time between the first rising edge of source 1 and
the first rising edge of source 2.
The time between the first rising edge of source 1 and
the first falling edge of source 2.
The time between the first falling edge of source 1 and
the first rising edge of source 2.
The time between the first falling edge of source 1 and
the first falling edge of source 2.
The time between the first rising edge of source 1 and
the last rising edge of source 2.
The time between the first rising edge of source 1 and
the last falling edge of source 2.
The time between the first falling edge of source 1 and
the last rising edge of source 2.
The time between the first falling edge of source 1 and
the last falling edge of source 2.
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Functional Description
Delete present folder
needed folder
operating object
Delete present file
present directories
Select operating object
Functional Description
STORAGE System
STORAGE System
SAVE / RECALL
setup
Interface
The XDO series can save 2 group reference waveforms, 20 group
setups and 20 group waveforms to the oscilloscope’s internal memory.
There is a USB Host interface on the front panel of the oscilloscope and
it is possible to save setup data, waveform data, waveform interface
image, CSV file to a USB flash drive. Setup data and waveform data can
be recalled to the current oscilloscope or the other same model
oscilloscopes. Picture data and CSV files can’t be recalled to the
oscilloscope, but can be opened on the adequate computer software.
CSV files saved on the USB drive are formatted in sec. and volts.
Select
Create new
Create new files in
Recall stored files
or present settings
Dual-Channel Digital Oscilloscopes 49
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Functional Description
STORAGE System (cont’d)
Save / Recall setups
Functional Description
Modify the file name
Return to the last
Save / Recall
setups
to device
The complete setup is stored in non-volatile memory.
The oscilloscope saves the current setup provided you wait three
seconds after the last change before powering off the oscilloscope. The
oscilloscope will recall this setup the next time you turn it on.
Press the “SAVE / RECALL” button.
Option Setting Description
Type Setups Menu for the Save / Recall setting in the
Save
to
Setup No.1 to No.20 Press the “Setup” option button or turn the
Save Perform the save
Recall Recall the storage in the “Setup” operation
Device Save setup to the oscilloscope’s internal
oscilloscope
memory.
“universal” knob to select storage position.
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Functional Description
Functional Description
STORAGE System (cont’d)
Follow these steps
Follow these steps
To save setups to the oscilloscope’s internal memory or to recall saved
setups.
For example: to save the setup so that the oscilloscope displays the
waveform as “Dots” to the oscilloscope’s internal memorizer.
1. Press the “SAVE/RECALL” button to enter the “SAVE/RECALL” menu.
2. Press the “Type” option button to select “setups”.
3. Press the “Save to” option button to select “Device”.
4. Press the “Setup” option button to select “No.1”.
5. Press the “DISPLAY” button to enter the “Display” menu.
6. Press the “Type” option button to select “Dots”.
7. Press the “SAVE/RECALL” button to enter the “SAVE/RECALL” menu.
8. Press the “Save” option button.
if the display type has been changed and you want to recall this setup :
1. Press the “SAVE/RECALL” button to enter the “SAVE/RECALL” display
2. Press the “Type” option button to select “Setups”.
3. Press the “Save to” option button to select “Device”.
4. Press the “Setup” option button or turn the “Universal” knob to select
5. Press the “Recall” option button.
menu.
“No.1”.
Save / Recall
USB flash drive
setups to
Option Setting Introduction
Type Setups Menu for the Storage/Recall settings.
Save to File Save setup data to USB flash drive.
Save
Go to the Save/Recall interface
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Functional Description
STORAGE System (cont’d)
Functional Description
Follow these steps
To save setups to the USB flash drive :
For example: to save setup so that the oscilloscope displays the
waveform as “Dots” to the oscilloscope’s internal memory.
1. Press the “SAVE/RECALL” button to select “Setups”.
2. Press the “Save to” button to select “file”.
3. Insert the USB drive.
4. Press the “Save” button, then go to the Save/Recall interface.
5. Press the “New folder” button to create a new folder
6. Press “Del folder” to delete a folder
7. Press “Modify” to modify a folder.
8. Press “New file” to create a new file
9. Press “Del file” to delete a file
10. Press “the next page” and press the “Rename” to change the name
of the file or the folder.
11. Press “Confirm" to save the setting to the USB drive.
12. Press the “SAVE/RECALL” button before removing the USB drive.
Follow these steps
To recall setups data from USB flash drive :
For example: To recall a setup so that the oscilloscope will display the
waveform as “Dots” from the oscilloscope’s internal memory.
1. Press the “SAVE/RECALL” button.
2. Press the button to select “Setups”.
3. Press the “Save to” option and select “file”.
4. Press “Save” and go to the Save/Recall interface
5. Choose the file you want to load then press the “Load” button.
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Functional Description
Functional Description
STORAGE System (cont’d)
Recall Factory
Save / Recall
waveform
To recall the factory setup :
Option Setting Description
Type Factory To view the Factory setup.
Load Recall the Factory setup.
The oscilloscope will display the waveforms that you want to save. The
oscilloscopes can store twenty captured waveforms to a non volatile
memory.
Save / Recall
waveform
Option Setup Description
Type waveforms Menu for the Save / Recall of waveforms
in the oscilloscope.
Save to Device Saves waveforms to the oscilloscope’s
internal memory.
waveform No. 1 to
No. 20
Save Perform the storage.
Recall Recall the storage in the “waveform”
Press the “waveform” option button or turn
the “Universal” knob to select storage
position.
operation
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Functional Description
STORAGE System (cont’d)
Functional Description
Follow these steps
Follow these steps
Save / Recall
waveform to USB
flash drive
To save a waveform to the internal memory:
1. Press the “SAVE/RECALL” button to enter “SAVE/RECALL” display
menu.
2. Press the “Type” button to select “waveforms”.
3. Press “Save to” to select “Device”.
4. Press “waveform” or turn the “Universal” knob to select “No.1”.
5. Turn the “Volts/div” knob or “S/div” knob to adjust the waveform that
you want to save.
6. Press “Save”.
To recall a saved waveform from the internal memory:
1. Press the “SAVE/RECALL” button to enter “SAVE/RECALL” display
menu.
2. Press “Type” to select “waveforms”.
3. Press “Save to” to select “Device”.
4. Press “waveform” or turn the “Universal” knob to select “No.1”.
5. Press “Recall”.
54 Dual-Channel Digital Oscilloscopes
Option Setup
Type Waveforms Menu for the Storage/Recall waveforms.
Save to File Save waveforms to USB flash drive.
Save Accomplish the storage.
Description
Page 55
Functional Description
Functional Description
STORAGE System (cont’d)
Follow these steps
Follow these steps
To save a waveform to a USB flash drive :
1. Input a sine signal to channel 1, press the “AUTO” button.
2. Press “SAVE/RECALL” to enter the “SAVE/RECALL” display menu.
3. Press “Type” to select “Waveforms”.
4. Insert the USB flash drive.
5. Press “Save to” to select “File”.
6. Press “Save” to enter the Save/Recall interface.
7. Create a file then press “Confirm” (for about ten seconds).
8. Press “SAVE/RECALL” before removing the USB drive.
To recall a saved waveform from the USB flash drive :
1. Press the “SAVE/RECALL” button.
2. Press “Type” to select “Waveforms”.
3. Insert the USB flash drive.
4. Press “Save to” to select “File”.
5. Press “Save” to enter the Save/Recall interface.
6. Choose the file you want then press “Load” (for five seconds).
Dual-Channel Digital Oscilloscopes 55
Page 56
computer software.
Functional Description
STORAGE System (cont’d)
Functional Description
Save Picture
The waveform interface image can be saved to a USB flash drive, but
can’t be recalled. You can open these using adequate
Option Setting
Type Pictures Menu for the Storage/Recall of waveform
Print Key
Print
Picture
Description
interface image.
When the oscilloscope is connected to a
printer and the “Back USB” option is set to
“Printer”, select “Print Picture” and press
the “PRINT” button to print the screen
image.
Follow these steps
Save
Picture
Save
1. Select the screen image that you want.
2. Press “SAVE/RECALL” to enter “SAVE/RECALL” menu.
3. Press “Type” to select “Pictures”.
4. Insert the USB flash drive.
5. Press the “Print Key” button to select “Save Picture”.
6. Press “Save” then enter the Save/Recall interface.
7. Create the picture name then press the “Confirm” button.
8. Press “SAVE/RECALL” before removing the USB drive.
When the USB flash drive is inserted in the
USB Host interface (the USB flash drive
open status icon will be displayed at the top
of the screen), select “Save picture” and
press the “Save” knob to enter the
Save/Recall interface.
Go to the Save/Recall interface.
56 Dual-Channel Digital Oscilloscopes
Page 57
Functional Description
Functional Description
STORAGE System (cont’d)
Save / Recall
Reference Waveform
The oscilloscopes can store two reference waveforms to non volatile
memory.
The oscilloscope can display reference waveforms at a time.
Reference waveforms are not adjustable, but the oscilloscope displays
the horizontal and vertical scales at the bottom of the screen.
Option Setting Description
Type CSV Menu storing CSV files to a USB flash drive.
Follow these steps
Data Depth Displayed
Maximum
Para Save On
Off
Save Enter the Save / Recall interface.
1. Press the “SAVE/RECALL” button to enter “SAVE/RECALL” menu.
2. Press “Type” to select “CSV”.
3. Insert the USB flash drive.
4. Press “Data Depth” to select “Displayed” or “Maximum”.
5. Press “Para Save” to select “On” or “Off”.
6. Press “Save” then enter the Save/Recall interface
7. Create a file name then press “Confirm” (for about five seconds).
8. Press “SAVE/RECALL” before removing the USB drive.
Set to store displayed waveform data to
CSV file.
Set to store maximum waveform data to
CSV file.
Set whether to store parameters to CSV file
or not.
Dual-Channel Digital Oscilloscopes 57
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Functional Description
UTILITY System (cont’d)
Functional Description
UTILITY System
Utility System
function menu 1
Press the “ UTILITY “ button.
Option Setting
System
Status
Displays a summary of the
Description
oscilloscope settings.
Sound
Counter On
Off
Language Simplified Chinese
Traditional Chinese
English
Arabic
French
German
Russian
Spanish
Portuguese
Japanese
Korean
Open the key-press voice.
Close the key-press voice.
Turn on Frequency Counter
Turn off Frequency
Counter.
Select interface language.
58 Dual-Channel Digital Oscilloscopes
Page 59
Functional Description
Functional Description
UTILITY System (cont’d)
Utility System
function menu 2
Option Setting
DO self
Cal
Do Self
Test
Description
Auto self calibration
Screen
Test
Keyboard
Test
LED Test
Run the screen detect program
Run the keyboard detect program
Run the dot lighting detect program.
Print
Setup
Back
USB
Enter the print setup menu to set print
options.
Printer The oscilloscope is connected to the printer
via a USB cable. When you execute print
function, please select “Printer”. The print
icon will be displayed at the top of the
screen.
Computer The oscilloscope is connected to the
computer via a USB cable. When you
execute the EasyScope software, select
“Computer”. The computer icon will be
displayed on the screen.
Dual-Channel Digital Oscilloscopes 59
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Functional Description
UTILITY System
Functional Description
Utility System
function menu 3
Option Setting Description
Update
firmware
Pass/Fail Press this button to enter the
You can update the oscilloscope
using a USB flash Driver.
“Pass/Fail menu”.
function menu
IO Setting
Record Press this button to enter the
waveform record menu.
IO Setting Press this button to enter the “IO
Setting menu”.
Option Setting Description
Baud 300
2400
4800
9600
19200
38400
Set up band rate.
60 Dual-Channel Digital Oscilloscopes
Page 61
Functional Description
Functional Description
UTILITY System (cont’d)
Utility System
function menu 4
Option Setting Description
Screen-
saver
1 min 2 min
5 min 10 min
Set the time for the screen-saver
Function checking
15 min 30 min
1 hour 2 hours
5 hours off
To check that oscilloscope is running smoothly, proceed as follows:
Set the switch to 1x on the probe and connect the
probe to channel 1 on the oscilloscope. To do this,
align the slot in the probe connector with the key
on the CH 1 BNC, push to connect, and twist to the
right to lock the probe in place. Connect the probe
tip and reference lead to the PROBE COMP
connectors.
Probe comp.
Press “AUTO” to show the 1KHz frequency and
about 3V peak-peak square wave in couple
seconds
Press “CH1” twice times to cancel channel 1,
Press “CH2” to change screen to channel 2, reset
channel 2 as in steps 2 and 3.
Dual-Channel Digital Oscilloscopes 61
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Functional Description
UTILITY System (cont’d)
Functional Description
System Status
Instructions
Print
Select “System Status” from the Utility Menu to display information
pertaining to this oscilloscope.
You can connect a printer using a USB cable.
Print setup option
function menu 1
Option Setting Description
Ink Saver On
Off
Layout Portrait
Landscape
Paper Size Default, L, 2L, Hagaki
Postcard, Card Size, 10 x 15
cm, 4" x 6", 8" x 10", Letter,
11" x 17", A0, A1, A2, A3, A4,
A5, A6, A7, A8, A9, B0, B1,
B2, B3, B4, B5, B6, B7, B8,
B9, 89 mm, Roll (L), 127 mm
Roll (2L), 100 mm Roll (4"),
210 mm Roll(A4)
Print Key Print Key
Print Picture
Prints the screen image on a
white background when you
select “on”.
Print the colour screen
image when “off” is selected.
Printer output layout.
Displays Settings available
on your PictBridge
compatible printer.
Select “Print Picture” option
when the oscilloscope is
connected to a printer, press
“S/div” to print the picture.
Select “Save Picture” option
when a USB drive is
inserted, press the “S/div”
knob to save the picture.
62 Dual-Channel Digital Oscilloscopes
Page 63
Functional Description
Functional Description
UTILITY System (cont’d)
Print setup option
function menu 2
Option Setting Description
Image Size Default, 2.5x3.25 in, L
(3.5x5 in), 4x6 in, 2L (5x7
in), 8x10 in, 4L (7 x 10 in),
E, Card, Hagaki card, 6 x
8 cm, 7x10 cm, 9x13 cm,
10x15 cm, 13x18 cm,
15x21 cm, 18x24 cm, A4,
Letter
Displays Settings
available on your
PictBridge compatible
printer.
Paper Type Default, plain, Photo, Fast
Photo
Print Quality Default, Normal, Draft,
Fine
Note
ID Print Default, On, Off
The oscilloscope is designed to print to any PictBridge compatible
printer. Refer to product documentation for your printer to determine if
your printer is PictBridge compatible.
Power on the oscilloscope, connect the oscilloscope to the printer with
the USB cable, the power on the printer.
Dual-Channel Digital Oscilloscopes 63
Page 64
Functional Description
UTILITY System (cont’d)
Functional Description
Update Firmware
Follow next steps
The software can be updated directly using a USB Flash drive.
1. Insert the USB Flash Drive with firmware.
2. Press the “UTILITY” button.
3. Press “Next Page” to enter the third page of the “Utility menu”.
4. Press the “Update Firmware” option button.
5. Press the “SINGLE” button to start updating the software.
6. Turn off the oscilloscope and turn on it again, the software has
been updated. The oscilloscope will execute a “Do Self Cal” after
updating.
64 Dual-Channel Digital Oscilloscopes
Page 65
Functional Description
Functional Description
UTILITY System (cont’d)
Pass / Fail
Pass/Fail
function menu 1
The Pass/Fail function can monitor changes in signals and output pass
or fail signals by testing whether the input signal is within the predefined
mask or not.
Option Setting Description
Enable On
Off
Source CH1
CH2
Operate
Msg Display On
Off
Turn on Pass/Fail function.
Turn off Pass/Fail function.
Select Pass/Fail test on CH1.
Select Pass/Fail test on CH2.
Press to run the Pass/Fail test.
Press to stop the Pass/Fail test.
Turn on time information display for the
waveform pass/fail.
Turn off time information display for the
waveform pass/fail.
Dual-Channel Digital Oscilloscopes 65
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Functional Description
UTILITY System (cont’d)
Functional Description
Pass / Fail
function menu 2
Option Setting Description
Output Pass
Fail
Output when pass condition
detected.
Output when fail condition
detected.
Stop On Output On
Mask Setting Press this button to enter the
Return Return to the Pass/Fail main
Off
Stop test on output
Continue test on output.
“Mask Setting menu”.
menu.
66 Dual-Channel Digital Oscilloscopes
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Functional Description
Functional Description
UTILITY System (cont’d)
Mask Setting
Mask Setting
function menu 1
Option Setting
X Mask
xdiv
Y Mask
ydiv
Create
Mask
Location Internal
Description
Turn the “Universal” knob to set the range of
horizontal clearance to the waveform.
<0.04div-4.00div>
Turn the “Universal” knob to set the range of
vertical clearance to the waveform. <0.04div-
4.00div>
Create a test mask according to the above
clearance data.
Select where to store created mask.
External
Mask Setting
function menu 2
Option Setting
Save Store created mask setting.
Load Recall stored mask setting.
Return Return to the main menu of mask
Description
setting.
Dual-Channel Digital Oscilloscopes 67
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Functional Description
UTILITY System (cont’d)
Functional Description
RUN Pass/Fail test
Follow next steps
1. Press UTILITY button to enter the “Utility menu”.
2. Press “Next Page ” to enter the third page of “Utility menu”
3. Press “Pass/Fail” to enter the “Pass/Fail” function menu.
4. Press “Enable Test” to select “Open”.
5. Press “Source” to select input signal channel.
6. Press “Next Page” to enter the second page of the “Pass/Fail menu”.
7. Press the “Mask Setting” button to enter the first page of “Mask
menu”.
8. Press “X Mask”, turn the “Universal” knob to adjust the horizontal
clearance.
9. Press “Y Mask”, turn the “Universal” knob to adjust the vertical
clearance.
10. Press “Create Mask” to create mask and you can also can the next
page of “Mask menu” to recall the stored mask.
11. Enter the second page of “Pass/Fail function menu”, press “Output”
to set the output option.
12. Enter the first page of the “Pass/Fail function menu”, press
“Operate” to select “
” and to run the pass/fail test.
Note
68 Dual-Channel Digital Oscilloscopes
The output signal is 3 V. When an error is detected, the output signal is
0 V during 125 µs.
Page 69
Functional Description
Functional Description
UTILITY System (cont’d)
Waveform Record
Waveform recorder
function menu
The waveform recorder can record input waveform from CH1 and CH2,
with a maximum record length of 2500 frames.
Option Setting
Mode Record
Source CH1
Interval
End
Frame
Operate
Play Back
Off
CH2
P/F-OUT
(Record)
(Stop)
Description
Set Record function menu.
Set Play Back function menu.
Turn off waveform recorder menu.
Select record source channel.
Set time interval between record frames.
turn the “Univeral” knob to adjust time
interval between recorded frames.
Set max number of recorded frames.
select the “Universal” knob to adjust
the max recorded frame.
Press to start recording.
Press to stop recording.
Dual-Channel Digital Oscilloscopes 69
Page 70
recorder main menu.
Functional Description
UTILITY System (cont’d)
Functional Description
Play Back
Waveform play
back function
menu 1
Play back current record waveforms or saved record waveforms.
Option Setting
Mode Play Back Set the Play Back function menu.
Operate
Play Mode
Interval
（Run（
（Stop（
Description
Press to start playback playing.
Press to stop playing.
Set loop play mode.
Set single time play mode.
Set time interval between frames.
Waveform play
back function
menu 2
Option Setting
Start Frame
Curr_Frame
End Frame
Return
Description
Set start frame.
Select current frame to be
played.
Set End frame.
Press to return the waveform
70 Dual-Channel Digital Oscilloscopes
Page 71
Functional Description
Functional Description
UTILITY System (cont’d)
Recorder
function menu
Waveform
recording
The waveform recorder is a type of seamless and no-gap real time
recording of waveform. This means that oscilloscope can save and
replay the waveforms it captured. This is similar to a waveform recording
instrument, and the largest recording size for its internal memory is 6M
Option Description
Record Record the waveform persistently
Replay Replay recorded waveform.
Option Set the recorder properly.
Return Quit the recording function
Dual-Channel Digital Oscilloscopes 71
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Functional Description
UTILITY System (cont’d)
Functional Description
Waveform recalling
function menu
Option Description
Stop Quit the auto-recalled waveform, the waveform in EMS
memory can then be observed by changing the time
base, the waveform in EMS memory can be moved left
and right
Previous Recalls previous waveform
Next Plays the next recalled waveform
Return Quit the recall interface
72 Dual-Channel Digital Oscilloscopes
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Functional Description
Functional Description
UTILITY System (cont’d)
Recorder
setting menu
Option Setting Description
Viewer Full
Screen
Split
Record
Mode
Replay
Mode
Return Quit the recording setting interface
Roll
Single
Sweep
One by
One
Roll
Waveform full screen recording and channel
recalling
Waveform recording on split screen and
channel recalling. CH1 is displayed in the
upper half-screen, CH2 is displayed in lower
half-screen.
The recorder saves the channel waveform
continuously, the latter waveform will cover
the former.
The recorder will stop saving when its memory
reaches 6M.
when recalling, the screen waveform will
refresh from left to right
When recalling, screen waveform will refresh
completely according to the capturing time of
each frame
Nota
Dual-Channel Digital Oscilloscopes 73
Recorder can only be used in scan mode. To display scan mode,
see p. 21.
Page 74
Specifications
Technical specifications
Inputs
Input coupling
Input impedance
Max. input voltage
Probe attenuator
Probe attenuator factors
Averaging
Output
Pass / Fail
Output Pulse
Protection
Signal
Sample types
Memory depth
Peak measure
AC, DC, GND
1 MΩ ± 2 % (|| 17 pF ± 3 pF)
400 V (DC + ACp)
x 1, x 10
x 1, x 5 , x10, x 50, x 100, x 500, x 1000
4, 16, 32, 64, 128, 256
3 V
40 V
XDO2025
XDO2040
Real time, equivalent time
normal : 20 kpts each channel
16 kpts each channel
long memory :
2 Mpts for one-channel mode
1 Mpts for two-channel mode
With a low speed signal (from 10 µs/div. start), it is possible
to capture high-frequency burr which are narrow to 10 ns.
Sampling mode
Vertical
Sensitivity
Channels
Résolution
Bandwidth
Lower frequency limit
(AC -3 dB)
DC measurement
accuracy
DC gain accuracy
Rising time
Input coupling
MATH
Sample, peak measure, average
XDO2025
XDO2040
from 2 mV/div. to 10 V/div. (by step of 1 - 2 - 5)
CH1 and CH2
8 bits
0 to 25 MHz 0 to 40 MHz
10 Hz (at BNC input)
<
Settings : gain < 100 mV/div.
± [3 % x (reading + offset) + 1 % of offset + 0.2 div. + 2 mV]
± 3 % : from 5 mV/div. to 10 V/div. with fixed gain ranges
<
± 4 % : typical for 2 mV/div. with variable gain ranges
<
< 14 ns < 8,8 ns
AC - DC - GND
+, -, ∗, /, FFT
FFT
BW limit
Hanning, Hamming, Blackmann, rectangular
- 20 MHz (-3 dB)
74 Dual-Channel Digital Oscilloscopes
Page 75
Specifications
Technical specifications (cont’d)
Horizontal
Max. sampling rate
(singleshot)
Equivalent sampling
Measure display
Trigger
Trigger Delay
modes
Accuracy
Ranges
Type
Modes
Coupling
Level
XDO2025
250 MS/s (2-channel)
500 MS/s (1-channel)
10 GS/s 25 GS/s
main, window, zoom, z window zoom, roll, X-Y
from 25 ns/div. to 50 s/div.
(25 MHz bandwidth)
Edge, pulse width, video, slope, alternative
Auto, normal, single
AC, DC, low frequency reject, high frequency reject
CH1, CH2 :± 6 div. from the middle of the screen
EXT : ± 1,2 V
EXT / 5 : ± 6 V
Pretrig : 12 div., trigger delay : 130 div.
XDO2040
500 MS/s (2-channel)
1 GS/s (1-channel)
± 0.01 %
from 10 ns/div. to 50 s/div.
(40 MHz bandwidth)
Alternative Trigger
Holdoff
Edge
Pulse width
Video
Slope
Range : 100 ns - 1,5 s
Rising, falling, rising/falling
mode : >, <, = : positive pulse width
conditions : odd field, even field, all lines, line num
>, <, = : negative pulse width
range : 20 ns - 10 s
PAL/SECAM ; NTSC
>, <, = : positive slope
>, <, = : negative slope
range: 20 ns - 10 s
CH1 : edge, pulse, video, slope
CH2 : edge, pulse, video, slope
Dual-Channel Digital Oscilloscopes 75
Page 76
Specifications
Technical specifications (cont’d)
X-Y Mode
X axis
Y axis
X-Y dephasing
Measurement types
Auto measurements
Cursor measurements
Display settings
Autoset
Save/Recall
CH1 input (CH1)
CH2 input (CH2)
≤ 3°
DC at 50 kHz
Vcc, Vmax, Vmin, Vamp, Vtop, Vbase, Vavg, Mean, Crms, Vrms,
ROVShoot, FOVShoot, RPREShoot, FPREShoot, rise time, fall time,
frequency, period
+ Wid., - Wid ., +Dut, -Dut, BWid, Phase,
FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF
manual, auto, track
Auto setting of the vertical, horizontal and trigger position
Refer to page
Hardware Frequency
Counter
Resolution
Range
Signal types
6 bits
DC couple, 10 Hz at max. bandwidth.
satisfying all the trigger signals
(except pulse, width and trigger video)
76 Dual-Channel Digital Oscilloscopes
Page 77
Specifications
General specifications
Environmental
Power supply
Safety
EMC
•
Operating temperature 10°C to 40°C
•
Storage temperature - 20°C to + 60°C
•
Use indoors
•
Altitude < 3000 m
•
Relative humidity 95 %, 40°C, 24 h
•
Mains voltage 10 - 240 VAC
•
Frequency 45 to 440 Hz
•
Consumption 50 VA max
•
Fuses 1.25 A / 250 V
•
Removable power cord
As per EN 61010-1 : 2001
•
Isolation class 1
•
Pollution degree 2
•
Power supply
overvoltage category 240 V
As per EN 61326-1 : 2006
Mechanical features
Casing
Screen
• Dimensions XDO2025 305 x 133 x 154 mm
XDO2040 339 x 111 x 149 mm
• Weight 2.4 kg approx.
• XDO2025 Colour TFT 5.7 inches 320 x 234 pixels
• XDO2040 Colour TFT 7 inches 480 x 234 pixels
Supply
Accessories
delivered with the
instrument
• 2 probes 60 MHz (1x ; 10 x)
• USB cable
• Power cable
• CD including user’s manual and Easy Scope Computer Software with
instrument drivers
Dual-Channel Digital Oscilloscopes 77
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