Chauvin Arnoux Metrix DOX2025B User manual

Digital oscilloscopes
DOX2025B
Two channels - 25MHz - 500MSP/s
DOX2070B
Two channels - 70MHz - 1GSP/s
DOX2100B
Two channels - 100MHz - 1GSP/s
User’s manual
X03985B02 - Ed. 01 - 06/17

Contents
2Two-channel digital Oscilloscopes
Contents
General instructions
Introduction............................................................................ 4
Precautions and safety measurements.................................... 4
Symbols marked on the instrument......................................... 5
Warranty, Servicing, Maintenance ........................................... 5
Description of the instrument
Front panel ............................................................................. 6
Back....................................................................................... 6
Display interface..................................................................... 7
Menu and command buttons and keys .................................... 8
Input, output........................................................................... 9
Adjust knob............................................................................ 9
Getting started
Check of operation.................................................................10
Probe ....................................................................................11
Functional description
AUTOSET/Default setting......................................................................................................13
Autoset..................................................................................13
Factory configuration.............................................................14
I - VERTICAL system..............................................................................................................15
Channels CH1 - CH2...............................................................15
Buttons of the vertical mode ..................................................19
Using REF .............................................................................19
Mathematics functions......................................................................................................20
MATH menu...........................................................................20
1. FFT process .........................21
2. Display of the FFT spectrum .........................22
3. Selection of the FFT window .........................22
4. Zoom and positioning of an FFT spectrum .........................23
5. Measurement of the FFT spectrum using cursors .........................23
II - HORIZONTAL system........................................................................................................25
Horizontal mode ....................................................................25
Buttons of the horizontal mode ..............................................26
Window zone.........................................................................26
III - TRIGGER system .............................................................................................................27
Trigger mode.........................................................................27
Trigger source.......................................................................27
1. Edge.......................28
2. Pulse ......................30
3. Video ......................32
4. Slope ......................34
5. Alternate.................36
Coupling................................................................................41
Position.................................................................................41
Slope and triggering threshold...............................................41
Hold-off .................................................................................42
IV - ACQUISITION system ......................................................................................................43
Acquisition mode...................................................................43
Sample ..................................................................................44
Peak detection.......................................................................44
Averaging..............................................................................45
ETS, RTS sampling modes.....................................................45
Time base..............................................................................46
Undersampling ......................................................................46
Run Control Run/Stop, Single.................................................48

Sommaire
Two-channel digital Oscilloscopes 3
Contents (cont’d)
V - DISPLAY system ..............................................................................................................49
Configuration of the display...................................................49
X-Y format .............................................................................52
VI - MEASUREMENT system ..................................................................................................53
Scale measurement ...............................................................53
Measurements by cursors......................................................53
1. Manual cursor .........................53
2. Track mode .........................54
3. Auto mode .........................56
Automatic measurements ......................................................57
Automatic measurement functions .........................57
1. Voltage measurements .........................58
2. Time measurements .........................58
3. Delay measurements .........................59
All measurements .........................59
Types of measurement .........................60
VII - STORAGE system...........................................................................................................63
1. "Save all" screen................................................................63
2. Save/Recall of the configuration .........................................65
1. Save/Recall the configurations of the device .........................65
2. Save the set-up to a USE flash memory .........................66
3. Restore the factory configuration .........................68
3. Backup and restoration of traces.......................................68
1. Save/Restore traces on the device .........................68
2. Save/Restore traces in USB flash memory .........................70
3. Save an image .........................71
4. Save/Recall CSV .........................72
VIII - UTILITY system..............................................................................................................73
Utility mode ...........................................................................73
System status........................................................................77
Print a screen grab.................................................................78
Auto-calibration.....................................................................79
Update of the embedded software..........................................81
Pass/Fail................................................................................81
Run the Pass/Fail test ............................................................81
Configuration of the mask............................................................ 82
Record mode .........................................................................84
Recorder ...............................................................................85
Remote control..............................................................................................................................88
Messages / Help.............................................................................................................................90
Embedded help function ........................................................90
Messages ..............................................................................91
Diagnostics ...........................................................................92
Technical characteristics ...............................................................................................................93
General characteristics..................................................................................................................96
Appendix: Default Setup................................................................................................................................98

General instructions
4Two-channel digital Oscilloscopes
General instructions
Introduction
You have just acquired a two-channel digital oscilloscope:
DOX2025B, 25 MHz, 500 MSP/s
DOX2070B 70 MHz, 1 GSP/s
DOX2100B, 100 MHz, 1 GSP/s
Your oscilloscope has functions for applications in production, education,
maintenance, services, and research and development.
We thank you for your choice and for your confidence in the quality of our
products.
This device is compliant with safety standard NF EN 61010-1 concerning
electronic measuring instruments; it is a class 1 device that must be
connected to the protective earth by its power cord.
For best results, read this manual carefully and observe the precautions for use.
Failure to observe the warnings and/or instructions for use may damage the
device and/or its components, thereby endangering the user.
Precautions and
safety
measurements
This device is designed for use:
- indoors,
- in an environment of pollution level 2,
- at an altitude below 2000m,
- at a temperature between 0°C and 40°C
- at a relative humidity below 80% up to 31°C.
It can be used for measurements on 300V CAT-II circuits and can be
supplied by a 300V CAT-II network.
definition of the
measurement
categories
Overvoltage category II corresponds to devices intended to be connected to
building circuits. It applies both to equipment connected via plugs and to
equipment connected permanently. Eg: Measurements made on the low-voltage
supply circuits of household appliances, hand tools, and similar equipment.
Overvoltage category III corresponds to equipment intended to be incorporated
in building circuits. This type of equipment can include wall outlets, fuse boards,
and some mains installation control equipment. Eg: Distribution panels (including
secondary meters), disconnects, wiring, including cables, busbars, junction
boxes, disconnect switches, outlets on the fixed installation, industrial devices,
and other equipment such as motors permanently connected to the fixed
installation.
Overvoltage category IV corresponds to equipment installed at the point of
entry or near the origin of a building's power supply, between the entry into the
building and the main distribution frame. This type of equipment can include
power meters and primary overvoltage protection devices. Eg: Measurements on
systems installed upstream of the main fuse or circuit-breaker of the electrical
installation of a building.
before use
Observe the environmental and storage conditions.
during use
Read attentively all notes preceded by the symbol.
Connect the device to an outlet having an earthing contact.
Take care not to obstruct the ventilation ports.
As a safety measure, use only the appropriate cables and accessories -
those supplied with the device or models approved by the manufacturer.
When the device is connected to the measurement circuits, never touch an
unused terminal.

General instructions
Two-channel digital Oscilloscopes 5
General instructions (cont'd)
Symbols marked
on the instrument
Warning, risk of danger.
Refer to the operating instructions for information about the nature of
the potential danger and the actions to be taken to avoid such
dangers.
Sorting of wastes for the recycling of electrical and electronic
equipment.
In compliance with Directive WEEE 2002/96/CE: must not be treated
as household waste.
Earth terminal
USB
Fuse
European conformity
Hazardous voltage switch
Alternating current
LAN
Warranty
This device is warranted against defects of materials and workmanship for a
period of 3 years, as stated in the general terms of sale.
During this period, only the manufacturer may repair the device. The
manufacturer reserves the right to repair or replace the device or any part
thereof. If the device is sent back to the manufacturer, the costs of carriage will
be borne by the customer. This warranty does not apply in the following cases:
improper use of the device or use in conjunction with incompatible
equipment
modification of the device without the explicit permission of the
manufacturer's technical staff
use by a person not authorized by the manufacturer
adaptation to a particular use not anticipated in the design of the device or in
the instructions for use
shocks, falls, or floods.
Servicing
For all repairs before or after expiry of warranty, please return the device to your
distributor.
Maintenance
Power down the instrument.
Clean it with a damp cloth and soap.
Never use abrasive products or solvents.
Dry it before using it again.

Description of the instrument
6Two-channel digital Oscilloscopes
Description of the instrument
Front panel
Back
Menu
keys
Adjust
knob
Common
functions
Horizontal
controls
Start/Stop
Menu
Host
USB
Print
key in BMP
extension
on USB key
only
Vertical
controls
Input
terminals
Security
locking
Kensington
Key
Connector
LAN RJ45
PC
Communication
ON/OFF key
AUTO-SET
key
Trigger
Controls
Calibration
signal
Run
controls
BNC
INPUT
USB Device
Connector
PC Communication

Description of the instrument
Two-channel digital Oscilloscopes 7
Description of the instrument (cont'd)
Display interface
1.
Trigger status:
Set: The oscilloscope is in pre-trigger data acquisition. All triggers are
ignored in this status.
Ready: All pre-trigger data have been acquired and the oscilloscope is ready
to accept a trigger.
Trig’d: The oscilloscope has detected a trigger and is in post-trigger data
acquisition.
Stop: The oscilloscope stops the acquisition.
Auto: The oscilloscope is in "Auto" mode and triggers acquisitions even in
the absence of a triggering event.
Scan: The oscilloscope acquires and displays data continuously in Roll
mode.
2.
USB key detected
3.
Displays the position in the internal memory of the window displayed.
4.
Indicates the horizontal position of the trigger, to change it turn the horizontal
position button
5.
Indicates that the LAN interface (rear panel) is active or not
6.
Displays the trigger level icon
7.
Displays the channel icon
8.
Displays the input coupling icon
9.
Displays the vertical scale of the track
10.
Indicates the status of the bandwidth limitation filter. The letter "B" indicates
that the bandwidth is limited to 20MHz.
11.
The display shows the calibration of the main time base
12.
Displays the trigger type
13.
Indicates the horizontal position of the Trigger relative to the center of the
screen
14.
Indicates the trigger level in Volts
15.
Indicates the frequency of the trigger source signal
6
7
15
14
8 9 10 11 13 12
1 2 3 4 5

Description of the instrument
8Two-channel digital Oscilloscopes
Description of the instrument (cont'd)
Menu and command
buttons and keys
Channel keys (CH1,
CH2)
Press one of the channel keys, CH1 or CH2, to activate it (ON) or deactivate
it (OFF) and access the menu used to configure the channel. When the
channel is active, the corresponding channel button is lit.
MATH
Displays the Math menu.
REF
Displays the "REF trace" menu. You can use this menu to save and recall
four or two reference traces in internal memory.
HORI MENU
Displays the Horizontal menu used to choose the Delayed or Normal
operating mode and select the acquisition memory depth.
TRIG MENU
Displays the Trigger menu. You can use the Trigger menu to choose the
type of trigger (Edge, Pulse, Video, Slope, Alternate) and parameterize the
triggering.
SET TO 50%
Press to stabilize the signal rapidly. The oscilloscope defines the trigger
level automatically half-way between the minimum and maximum levels of
the source signal. This function is especially useful when the trigger source
is a signal that is not displayed, such as EXT TRIG
FORCE
Forces an acquisition whether or not a triggering event is present.
SAVE/RECALL
Displays the Save/Recall menu used to save and retrieve up to 20
configurations of the oscilloscope or up to 20 traces in internal memory, or
on a USB key (in which case the capacity depends on the USB key).
You can also retrieve the Factory configuration, save traces to a CSV file,
and save or print a screen grab.

Description of the instrument
Two-channel digital Oscilloscopes 9
Description of the instrument (cont'd)
ACQUIRE
Displays the Acquisition menu. You can use the Acquisition menu to
parameterize the Sampling mode (sample, peak detection, mean).
MEASURE
Displays the Measurement menu.
CURSORS
Displays the Cursor menu. The "Adjust" knob is used to set the position of
the active cursor. The cursors remain displayed (unless the "Type" option is
"Off") after you exit from the Cursor menu, but they can no longer be set.
DISPLAY
Opens the Display menu. The Display menu is used to configure the
graticule and the shapes representing the traces, the persistence, and the
intensity.
UTILITY
Gives access to the Utility menu. The Utility menu is used to configure such
oscilloscope options as the sound, the language, the counter, etc. It also
serves to look up the status of the system and to update the software.
DEFAULT SETUP
Loads the "Default Setup" of the oscilloscope.
HELP
Gives access to the internal help function.
AUTO
Automatically configures the oscilloscope in order to produce a display
appropriate to the signals present on the inputs.
RUN/STOP
Acquisition of signals continuously, or stop acquisition.
Note: If acquisition of the signal is stopped (using the "RUN/STOP" button
or "SINGLE"), the S/div knob stretches or compresses the signal.
SINGLE
Enables a single acquisition and then STOPs.
BNC connectors
of the inputs and
Probe compensation
output
Channel connector
(CH1, CH2)
Input connectors for the display of signals.
EXT TRIG
Input connector for an external trigger source. Choose the "Ext" or "Ext/5"
trigger source in the Trigger menu.
Calibration signal
Connections of the internal generator used for probe compensation.
Adjust knob
This can be used with many functions, for example to adjust
the Hold-Off, move the cursors, set the pulse width, define
the video line, set the high and low frequency limits of the
filters, set the X and Y masks with the Pass/Fail function, etc.
The "Adjust" knob is used to select the location of the setup,
trace, and image files during a save/recall, and to choose
menu options.

Getting started
10 Two-channel digital Oscilloscopes
Getting started
Check of
operation
In order to check the proper operation of the oscilloscope, perform the
following operations:
Steps
1. Power up the oscilloscope.
Press "Default Setup" to load the default configuration of the oscilloscope.
The default attenuation of the probe is 1X.
2. Set the switch of the probe to 1X and connect the probe to channel CH1.
Turn to the right to lock. Connect the end of the probe and the crocodile clip
of the earthing cable to the 1kHz probe compensation signal output
terminals.
3. Press "AUTO" to display the 1kHz square wave with a peak-to-peak
amplitude of approximately 3V.
4. Press the "CH1" key to unselect channel CH1. Press the "CH2" key to
activate channel CH2 and repeat steps 2 and 3 to display the square-wave
probe compensation signal on channel CH2.

Getting started
Two-channel digital Oscilloscopes 11
Getting started (cont'd)
Probe
A guard around the probe body protects your fingers from electric shocks.
Connect the probe to the oscilloscope, then connect the crocodile clip of the
earthing cable of the probe to the earth reference potential of the circuit to be
tested before making a measurement.
Attenuation
of the probe
The probes can have different attenuation factors that modify the vertical
scale of the oscilloscope. Press the corresponding channel key (CH 1 or
CH2) and select the coefficient that corresponds to the attenuation factor of
your probe.
Make sure that the attenuation switch of the probe is set to the same
attenuation factor as the oscilloscope. The probes supplied with the
oscilloscope have two attenuation coefficients: 1X and 10X.
Note:
● In order to avoid an electric shock while using the probe, keep
your fingers behind the guard on the probe body.
● In order to avoid an electric shock while using the probe, do
not touch the metallic parts of the probe head when the probe is
connected on a voltage source. Connect the probe to the
oscilloscope, then connect the ground cable to the earth of the
circuit to be tested before making a measurement.
Note: The default probe coefficient is 1X.
Note:
When the attenuation switch is set to 1X, the probe limits the
bandwidth of the oscilloscope to approximately 6MHz
(depending on the characteristics of the probe). To use the full
bandwidth of the oscilloscope, be sure to set the switch of the
probe to 10X.

Getting started
12 Two-channel digital Oscilloscopes
Getting started (cont'd)
Compensation
of the probe
Method used to compensate the probe (in the X10 position) manually to
couple it to the input channel:
Steps
1. Set the probe factor in the channel CH1 menu to 10X. Set the switch of the
probe to 10X and connect the probe to channel CH1 of the oscilloscope.
2. Connect the probe tip to "PROBE COMP 3V" and the crocodile clip of the
earthing cable of the probe to the "PROBE COMP" earth.
Activate channel CH1 and then press the "AUTO" button.
3. Check the shape of the signal displayed.
Overcompensated Correct compensation Undercompensated
4. As the case may be, adjust your probe by acting on the variable capacitor,
using the screwdriver provided, so as to obtain "Correct Compensation".
Repeat the operation as many times as necessary or when you change
probes.
Note : For more details, refer to the directions for use of the
probes provided with the oscilloscope

Functional description
Two-channel digital Oscilloscopes 13
Functional description
AUTOSET
AUTOSET
The DOX2000B digital oscilloscope has an "AUTOSET" function that is used
to automatically configure the device to produce a display appropriate to the
signals present on the inputs.
After starting an AUTOSET, if necessary, select the desired signal waveform
from among the 4 available:
Autoset
function menu
Option
Description
Multi cycles
Autoset and display of the signal for
several cycles.
Monocycle
Autoset and display of a single cycle
of the signal.
Rising edge
Autoset and display of the rising edge.
Falling edge
Autoset and display of the falling
edge.
Cancel config.
Restores the previous configuration of
the oscilloscope.
The Autoset defines the triggering source and the display of the channels to
satisfy the following conditions:
● If the signals on the inputs are of different frequencies, the priority
channel is the one in which the signal has the lower frequency.
● If no signal is detected, it is the channel having the lower index (CH1) that
is displayed.
● If no signal is found and no channel is activated, the oscilloscope displays
and uses channel CH1.

Functional description
14 Two-channel digital Oscilloscopes
Functional description
AUTOSET (cont'd)
Autoset
function
Function menu
Values
Acquisition
mode
Sample
Display format
Y-T
Type of display
Dots for a video signal; Vectors for an FFT spectrum;
otherwise unchanged
Vertical
coupling
DC or AC depending on the input signal
Bandwidth limit
Bandwidth limiter inactive (full band)
V/div
Adjusted
VOLTS/DIV
adjustment
Coarse (in hops, 1 2 5 staging)
Signal inverted
Inactive
Horizontal
position
Centre
S/div
Adjusted
Type of trigger
Edge
Source of
trigger
Autodetection of the input channel signal
Trigger edge
Rising
Trigger mode
Auto
Trigger
coupling
DC
Hold-Off
Minimum
Trigger level
Adjusted to 50%
Factory
configuration
When it leaves the factory, the oscilloscope is configured for normal use; this
is the "default configuration". To restore this configuration, press the
"DEFAULT SETUP" button. The parameterizing of the options, buttons, and
commands may be modified when you use the "DEFAULT SETUP" button;
see appendix B.
The DEFAULT SETUP button does not modify the following parameters:
● Language option
● Saved reference signal files
● Saved configuration files
● The display contrast
● The calibration data

Functional description
Two-channel digital Oscilloscopes 15
Functional description
I - VERTICAL System
The buttons, knobs, and keys of the vertical keypad are used to display the
signals and to adjust the vertical sensitivity and position.
1. Channels CH1 CH2
page 1
Option
Values
Instructions
Coupling
DC
AC
GND
DC passes the AC and DC components of
the input signal.
AC blocks the DC component of the input
signal and attenuates the AC components
below 10Hz.
GND disconnects the input signal.
BW limit
ON
OFF
Limits the bandwidth to reduce high
frequency noise <20MHz
Volts/Div
Coarse
Fine
Selects the resolution of the Volts/Div knob
Coarse adjustment in hops, 1-2-5 staging.
Continuous fine adjustment of the sensitivity.
Probe
0.1x,0.2x, 0.5x,1x,2x,
5x,10x,20x,50x,100x,
200x, 500x,1000x,
2000x,5000x,10000x
To be adjusted to the attenuation coefficient
of the probe used, to incorporate it in the
vertical sensitivity.
Next page
Page 1/3
Access to the second page of the menu.
page 2
Option
Values
Instructions
Inversion
ON
OFF
Activates inversion.
Deactivates inversion.
Digital filter
Press this button to access the "Digital Filter
Menu" (cf. table 2-5)
Next page
Page 2/3
Access to the second page of the menu.
Digital filter
Option
Values
Instruction
Digital filter
Act.
Deact.
Activates the digital filter.
Deactivates the digital filter.
Type
Config. as LPF (Low Pass Filter).
Config. as HPF (High Pass Filter).
Config. as BPF (Band Pass Filter).
Config. as BSF (Band Stop Filter).
Upper limit
Turn the "Adjust" knob to adjust the upper limit.
Lower limit
Turn the "Adjust" knob to adjust the lower limit.
Return
Return to the main digital filter menu.
CH2 Volt/div knob
CH2 vertical
position knob
CH2 key
CH1 key
REF key
MATH Key
CH1 Volt/div knob
CH1 vertical
position knob

Functional description
16 Two-channel digital Oscilloscopes
Functional description
I - VERTICAL system (cont'd)
Configuration of
channels CH1, CH2
Each channel has its own menu.
1. Selection of the
input coupling
● Pressing "CH1"→"Coupling"→"AC" selects AC input coupling.
The DC component of the signal is blocked.
● Pressing "CH1"→"Coupling"→"DC" selects DC coupling.
The DC and AC components pass.
● Pressing "CH1"→"Coupling"→"GND" selects GROUND coupling.
The input signal is disconnected.
The CH1 input signal is a positive square wave displayed with DC input
coupling:
2. Bandwidth
limitation,
DOX2025B
DOX2070B
DOX2100B
● Pressing "CH1"→"BW Limit"→ "On" activates the "Bandwidth Limiter".
The sinusoidal signal > 20MHz is attenuated.
● Pressing "CH1"→"BW Limit"→ "Off" deactivates the "Bandwidth limiter".
The sinusoidal signal > 20MHz is not attenuated.
The image shows a sinusoidal signal at 20MHz (yellow trace) displayed with
theBP band limiter (BW) "On" (the blue trace is obtained with the BW "Off"):
DC
coupling
DC status
BW
≈20MHz
BW Limit symbol

Functional description
Two-channel digital Oscilloscopes 17
Functional description
I - VERTICAL system (cont'd)
3. Adjustment of the
vertical sensitivity
The vertical scale can be adjusted in Coarse and Fine mode; the vertical
sensitivity band is from 2mV/div to 10V/div.
For example, for CH1:
● Pressing "CH1"→"Volts/ Div"→"Coarse" Volts/div, the default value.
The vertical sensitivity can be adjusted in hops in a 1-2-5 staging from
2mV/div, 5mV/div, and 10mV/div up to 10V/div.
● Pressing "CH1"→"Volts/Div"→"Fine" Volts/div. This parameter allows
continuous adjustment of the vertical sensitivity.
4. Parameterizing
the probe
attenuation
From the Channel menu, select the probe coefficient corresponding to the
attenuation factor of the probe. To compensate a probe attenuation factor of
10:1, the probe coefficient must be set to 10X, in order to incorporate the
attenuation factor of the probe in the vertical sensitivity.
Coarse
Probe
attenuation
factor

Functional description
18 Two-channel digital Oscilloscopes
Functional description
I - VERTICAL system (cont'd)
5. Invert the
signals
For example, on CH1:
● Press "CH1"→ "Next Page" "page 1/3" →"Invert" →"On":
6. Using the digital
filter
● Press "CH1" →"Next Page page 1/3" →"Filter", to access the Digital Filter
menu. Choose "Filter Type", then select "Upp. Limit " or "Low. Limit " and turn
the "Adjust" knob to adjust it.
● Press "CH1" →"Next Page page1/3" → "Filter" →"Off", to deactivate the
Digital Filter function.
“Off ”
“On”
7. Choosing the
unit, V or A
● Press "CH1"→ "Next Page page3/3"→ "Unit" → Then Select the vertical
unit, Volt or Ampere.

Functional description
Two-channel digital Oscilloscopes 19
Functional description
I - VERTICAL system (cont'd)
2. Buttons of the
vertical mode
Vertical position
knobs
1. Use the "Vertical position" knobs to move the traces up or down on the
screen.
2. While you adjust the vertical position of the trace, the value "Volts Pos = " is
displayed at bottom left on the screen.
3. Press the "Vertical position" knob to reset the vertical position to zero.
Volts/div knobs
1. Use the "Volts/div" knobs to adjust the vertical sensitivity. If you turn the
"Volts/div" knob clockwise or anticlockwise, the oscilloscope increases or
reduces the sensitivity.
2. You can press the "Volt/div" to alternate between "Coarse" and "Fine"
adjustments. In the "Coarse" mode the vertical sensitivity varies in 1-2-5-
staged hops. In the "Fine" mode the vertical sensitivity varies continuously.
3. Using REF
The reference command stores the traces. The reference function is available
once a source trace has been stored.
REF function menu
Option
Values
Instruction
Source
CH1 CH2
Choice of trace to be stored.
REFA
REFB
Choice of the location of storage or
restoration of a trace.
Save
Stores a source trace at the chosen location.
REFA/REFB
On
Off
Recalls the reference trace to the screen.
Deactivates the reference trace.
REF A “On” REF A “Off ”
Steps
1.Press the "REF" button to access the REFerence menu.
2.Press the "Source" button to choose the source channel, CH1 or CH2.
3.Turn the vertical "POSITION" and "Volt/div" knobs to adjust the vertical
position and sensitivity to suitable values.
4.Press the "REF A" (or REF B) button to choose the storage location.
5.Press the "Save" button.
6.Select REF A (or REF B) "ON" to display the reference trace on screen.

Functional description
20 Two-channel digital Oscilloscopes
Functional description
I - VERTICAL system / MATHematics function
4. MATH menu
MATH displays the results of +, -, *, /, and FFT operations on channels CH1
and CH2.
Press the MATH key to access the MATHematics menu.
Menu
Function
Values
Description
Operation
+, -, *, FFT
Choice of the MATHematics function.
Invert
On
Off
Invert the MATH trace.
Deactivate the inversion of the MATH trace.
Turn the adjust knob to adjust the vertical
position of the MATH trace
Turn the adjust knob to adjust the vertical scale
of the MATH channel.
Instruction
Operation
Values
Description
+
CH1+CH2
CH1 is added to CH2.
-
CH1-CH2
CH2 is subtracted from CH1.
CH2-CH1
CH1 is subtracted from CH2.
*
CH1*CH2
CH2 is multiplied by CH1.
/
CH1/CH2
CH1 is divided by CH2.
CH2/CH1
CH2 is divided by CH1.
FFT
Fast Fourier Transform.