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Copyright ©
Pôle Test et Mesure de CHAUVIN-ARNOUX
Parc des Glaisins
6, avenue du Pré de Challes
F - 74940 ANNECY-LE-VIEUX
Tél. +33 (0)4.50.64.22.22 - Fax +33 (0)4.50.64.22.00
X03799B02 - Ed. 1 - 05/14
General Instructions
Contents
General instructions
Chapter I
Introduction .......................................................................................... 4
Update the instrument’s software ....................................................... 7
Description of the instrument Chapter II
Presentation, starting up ...................................................................... 9
OX 6xx2 Views ..................................................................................... 10
Terminal Boards, stylus ..................................................................... 13
Getting started .................................................................................... 14
Front Panel .......................................................................................... 14
Network ................................................................................................ 17
Micro Memory « SD Card » Chapitre III
Introduction ......................................................................................... 21
Installation ........................................................................................... 21
Operation ............................................................................................. 21
File formatting ................................. 22
File recording ................................. 21
Oscilloscope Mode Chapter IV
Keys ...................................................................................................... 26
Display ................................................................................................. 31
Menus
" Vertical" menu ................................. 38
" Trigger" menu ................................. 50
" Horizontal" menu ................................. 61
"Display" menu ................................. 66
" Measurement" menu ................................. 68
"Memory" menu ................................. 73
" Utilities" menu ................................. 76
" Help" menu ................................ 84
Multimeter Mode Chapter V
Keys ............................................................................................... 86
Display ........................................................................................... 88
Menus ............................................................................................ 91
" Vertical " menu ............................... 92
" Trigger " menu ............................... 94
" Horizontal " menu ............................... 95
"Display" menu ............................... 95
" Measurement " menu ............................... 97
"Memory" menu ............................... 98
" Utilities " menu ............................... 99
" Help " menu .............................. 99
Harmonic Analysis Mode Chapter VI
Display ............................................................................................... 101
Menus
"Vertical" menu ............................... 104
"Horizontal" menu ............................... 106
"Display" menu ............................... 107
"Memory" menu ............................... 107
"Utilities" menu ............................... 107
"Help" menu ............................... 107
I - 2 2-channel Oscilloscopes
General Instructions
Recorder Mode Chapter VII
Keys .................................................................................................... 109
Display ............................................................................................... 112
Menus
"Vertical" menu ............................... 120
"Trigger" menu ............................... 121
"Horizontal" menu ............................... 126
"Display" menu ............................... 127
"Measurement" menu ............................... 129
"Memory" menu ............................... 130
" Utilities" menu ............................... 134
"Help" menu ............................... 136
HTTP and FTP Server Chapitre VI
General ............................................................................................... 138
ScopeNet ............................................................................................ 139
ScopeAdmin ...................................................................................... 149
PolicyTool .......................................................................................... 152
FTP Server ......................................................................................... 153
Applications Chapter VI
Display of the calibration signal ...................................................... 154
Automatic measurements ................................................................ 156
Cursor measurements ...................................................................... 157
Phase offset measurement with cursor ......................................... 157
Automatic phase measurement ...................................................... 157
Manual phase measurement ............................................................ 158
Video signal display .......................................................................... 158
Examination of a specific TV line .................................................... 160
“ROLL” Mode display of slow phenomena .................................... 161
Min/Max Acquisition ......................................................................... 163
Measurement in “Multimeter” Mode ............................................... 164
ETHERNET network application examples .................................... 166
WEB Server ........................................................................................ 168
File transfer ....................................................................................... 168
Hardcopy on network printer ............................................................. 169
Installation of a FTP server ............................................................... 170
”Virtual Printers” ................................................................................ 174
Technical Characteristics Chapter VII
Oscilloscope mode ................................................................ 180 to 191
General Specifications - Mechanical Specifications Chapter VIII
page 193
Supply Chapter IX
page 194
Index
ADDENDUM
“Line Monitoring” Mode ................................................................... A-1
The
• Windows and Internet Explorer are registered trademarks of Microsoft Corporation.
• Other company and product names used herein may also be trademarks of others.
2-channel Oscilloscopes I - 3
logo is a registered trademark.
General Instructions
General Instructions
Introduction
You have just purchased a 2-channel oscilloscope.
Congratulations on your choice and thank you for your trust in the quality of
our products.
This range of oscilloscopes offers the following models:
OX 6062-C
OX 6202-C
This oscilloscope also offers the following modes:
• Multimeter mode : Measurement ground is connected to earth ground !
• Harmonic Analyser mode (option)
• Recorder mode (option)
• Other possible options, see p. 7 Æ Check our website regularly.
It complies with safety standard NF EN 61010-1 + NF EN 61010-2-030,
relative to electronic measuring instruments.
For optimum service, read this manual carefully and comply with the
operating precautions.
Non-compliance with the warnings and/or operating instructions might
damage the instrument and/or its components and could prove dangerous
for the user.
color 2-channel 60 MHz 1 GHz sample
color 2-channel 200 MHz 1 GHz sample
Precautions and safety measures
• This instrument has been designed for use:
- indoors
- in an environment with pollution level 2
- at an altitude of less than 2000 m
- at a temperature between 0°C and 40°C
- with relative humidity of less than 80% up to 31°C.
• The safety of any system integrating the apparatus concerns the
responsibility of the assembler of the system.
• It can be used for measurements on circuits 300 V, CAT II (measurement
ground is connected to earth ground) and can be powered by a 90 to
264 V
However, some accessories can lead you to use this instrument on
circuits of lower voltage and category.
AC mains network (300 V – CAT II).
I - 4 2-channel Oscilloscopes
General Instructions
General instructions (cont'd)
Precautions and
safety measures
(cont’d)
before use
during use
Definition of
measurement
categories
• Comply with environmental and storage conditions.
• Check the integrity of the protections and insulation of the accessories.
Any item of which the insulation is deteriorated (even partially) must be
taken out of service and scrapped. A change in the colour of the
insulation is a sign of deterioration.
• Power supply : it must be connected to the mains network
(from 90 to 264 V
AC, 300 V – CAT II). Make sure that it is in good
working conditions.
• Removable line/power cords must not be replaced by cords having
unsuitable rated characteristics.
• Read carefully all the notes preceded by the symbol
.
• The instrument power supply is equipped with an electronic protection
system which is reset automatically when the fault is eliminated.
• Be sure not to obstruct the ventilation holes.
• As a safety measure, use only suitable cords and accessories supplied
with the instrument or approved by the manufacturer.
Overvoltage category ll is for equipment intended to be supplied from the
building wiring. It applies both to plug-connected equipment and to
permanently connected equipment.
E.g.: Measurements on the network circuits of household appliances,
portable tools and other similar appliances.
Overvoltage category lll is for equipment intended to form part of a
building wiring installation. Such equipment includes socket outlets, fuse
panels, and some mains installation control equipment.
E.g. Measurements on distribution panels (including secondary meters),
circuit breakers, cabling including cables, busbars, junction boxes,
disconnecting switches, power outlets in the fixed installation, and
industrial appliances and other equipment, such as motors permanently
connected to the fixed installation.
Overvoltage category lV is for equipment installed at or near the origin of
the electrical supply to a building, between the building entrance and the
main distribution board. Such equipment may include electricity tariff
meters and primary overcurrent protection devices.
E.g.: Measurements on systems installed before the main fuse or the
circuit breaker of the building's installation.
*
Using a measuring device, a lead, or an accessory of a lower
measurement category or voltage reduces the whole system
(device + leads + accessories) to the lowest measurement category
and/or service voltage.
2-channel Oscilloscopes I - 5
General Instructions
General instructions (cont'd)
Symbols used on the instrument
Warranty
Warning: Risk of danger.
Refer to the operating manual.
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
The CE marking indicates compliance with EC Directives
"Low Voltage", "EMC", "DEE" and "RoHS".
This equipment is guaranteed against any defect in materials or
workmanship, in accordance with the general terms and conditions of sale, .
During the period of guarantee, the equipment can only be repaired by the
manufacturer. The manufacturer reserves the right to carry out repair or
replacement of all or part of the equipment. If the equipment is returned to
the manufacturer, initial transport costs shall be borne by the customer.
The warranty does not apply following:
• unsuitable use of the equipment or use with other incompatible equipment
• modification of the equipment without explicit authorization from the
manufacturer’s technical services
• repair carried out by a person not certified by the manufacturer
• adaptation to a specific application, not provided for in the definition of the
equipment or by the operating manual
• an impact, a fall or a flooding.
Maintenance and
metrology checks
Unpacking Repacking
As for all measurement or test instruments, regular checking is necessary.
We recommend annual check of this instruments.
For checks, calibration, please return the device to your reseller.
All the equipment was verified mechanically and electrically before shipping.
When you receive it, carry out a quick check to detect any damage that may
have occurred during transport. If necessary, contact our sales department
immediately and register any legal reservations with the carrier.
In the event of reshipping, it is preferable to use the original package.
Indicate the reasons for the return as clearly as possible in a note attached
to the equipment.
I - 6 2-channel Oscilloscopes
General Instructions
General instructions (cont'd)
Repairs under warranty and outside the warranty
Cleaning
For repairs outside continental France, both with and without warranty,
return the appliance to your local Chauvin Arnoux branch or to your
reseller.
• Turn the instrument off.
• Clean it with a damp cloth and soap.
• Never use abrasive products or solvents.
• Allow to dry before any further use.
Verifying the proper operation of equipment
A self-test operation is performed by the instrument when starting. If a
problem is detected, an error message with a numeric code is displayed on
the screen (see the meaning of these codes p. 191).
The result of this self-test is also available in the menu "Util Æ system."
We recommend an annual check of your instrument by an accredited
metrology service (refer to your nearest distributor).
Update of the instrument's firmware
Log on to the site http://www.chauvin-arnoux.com
•
• In the "Support" section, select "Download Center".
• Download the "firmware" corresponding to the model you have
purchased.
• Also download the firmware installation instructions.
• Consult this installation note to update your instrument.
2-channel Oscilloscopes I - 7
General Instructions
I - 8 2-channel Oscilloscopes
Description of the instrument
Description of the instrument
Presentation
The adjustment of the 2 ways is accessible by the opposite keys.
The OX 6062 and OX 6202 instrument group 4 instruments into one :
FFT
Function
Digital
Oscilloscope
Multimeter
OX 6062
OX 6202
Harmonic
Analyser
(option)
• a digital oscilloscope for laboratory use, intended for the analysis of the
Recorder
(option)
• DC voltage measurement
• AC voltage measurement
(RMS)
• Current measurement for
clamps
• Resistance measurement
• Condenser measurement
• Diode test
• Continuity test
• Temperature measurement
PT100 or TCK
signals encountered in electronics
• an 4,000-count multimeter.
Caution : “measurement ground is connected to earth ground".
• a "harmonic" analyzer, for breaking down 4 signals (or 2) (option)
• a recorder, designed to capture single or slow signals (option)
- The instrument works with a constant acquisition depth of 2500 counts
(or 50 000, option)
- Memory management is organized using a "Windows®"-type file system.
- A large LCD screen is used to view the signals applied, along with all the
settings.
- The main control functions are directly accessible using the keys on the
front panel and can be modified using a touch-sensitive pad with the
stylus supplied.
- A graphical interface similar to a PC's is used to:
• select the advanced functions by means of drop-down menus and the
touch-sensitive pad
• act directly on the objects (curves, cursors, etc.) displayed on the screen.
This means that the settings can be modified.
- The oscilloscope is fitted with a port for micro SD memory card, used
for storage and transfer of removable data (configurations, screen
captures, traces, etc…). See chapter III, p. 21.
- Communication interfaces :
USB via HX0084 adapter
ETHERNET
CENTRONICS (option)
RS232 via HX0042 cable (option)
2-channel Oscilloscopes II - 9
Description of the instrument
Description of the instrument (cont'd)
OX 6062
OX 6202
Front Panel
II - 10 2-channel Oscilloscopes
Description of the instrument
Description of the instrumentDescription of the instrument
(cont'd)
OX 6062
OX 6202
Rear panel
Marking
2-channel Oscilloscopes II - 11
Description of the instrument
Description of the instrumentDescription of the instrument
(cont'd)
OX 6062
OX 6202
Power
supply
Interface
Marking
RS232/Ethernet
slot
Calibration
signal
Socket
Micro SD Card
II - 12 2-channel Oscilloscopes
Extern
Trigger
Description of the instrument
Description of the instrumentDescription of the instrument
(cont'd)
Terminal board
OX 6062
OX 6152
marking
Stylus
Magnetized base
2-channel Oscilloscopes II - 13
Description of the instrument
Description of the instrument (cont'd)
Starting up
Front (description)
1 On/Standby/Off key
• The oscilloscopes are designed to operate on a power source delivering 90
to 264 V (ACrms) at 50 to 60 Hz.
• Take the power cord which is in the trunk (p. 12). The power supply can
remain in the trunk.
• Connect the power cord to the mains.
• Press the instrument's ON switch: it lights on and then a clock is displayed
on the screen during the start-up sequence.
The message "Instrument start-up" is displayed.
The oscilloscope is then ready for use.
By default, the "Advanced" mode is not active (see p. 82).
The main functions of the instrument are accessible on the front panel and can
be modified using the touch-sensitive pad (with its stylus) or the menu bar.
• Power on by a short press.
• Switch the instrument to standby (yellow LED flashing inside the key) by one
short press. A second press on the key reactivates the instrument.
• power off by a long press (> 3 s):
the recording time of the files and configuration is < 15 s.
Never disconnect the instrument from the mains while the message
"System shut down : Please wait before switch off power" is displayed
on the screen. Otherwise, the current file and all the files previously
saved will be lost.
1 touch-sensitive
pad and stylus
These can be used for:
selection of menus,
validation of functions,
movement of symbols appearing on the LCD screen.
• The menus at the top of the screen and the submenus selected by the
pointer open and are validated with the stylus.
• The menus in the curve display area,
the command area
the status area
can be opened with the stylus.
• The stylus can move the symbols displayed in:
1. the main display area:
trigger position
position of cursors
reference of the traces displayed
2. the bargraph:
trigger position
position of cursors
position of zoomed area in the acquisition memory
Place the pointer on the symbol to be moved and keep the stylus pressing
down while you move it to the required position.
• It is possible to use the stylus to zoom in the display area: drag to create a
rectangle.
II - 14 2-channel Oscilloscopes
Description of the instrument
Description of the instrument (cont'd)
4 "operating mode"
28 keys only active
when pressed
keys
You can select the operating mode of the instrument by pressing one of these
4 keys:
"oscilloscope"
"multimeter" (*)
"harmonic analyser" (option)
"recorder" (option)
(*) Measurement ground is connected to earth ground.
Shortcut access to the most common functions: see chapter on "The Keys" for
the "Oscilloscope" p. 26, "Multimeter" p. 86.
2-channel Oscilloscopes II - 15
Description of the instrument
II - 16 2-channel Oscilloscopes
Description of the instrument
Description of the instrument (cont'd)
Using the menus
The various instrument parameters can be accessed via menus.
The rules for using, selecting and modifying an option are identical to those
defined by Microsoft Windows.
To input a numerical value (time base, alignment, etc.), a double click on the
numerical field brings up a virtual keyboard:
The window title indicates the adjustment
in process and the measurement unit
Numerical value being input
Erase
key
Pressing on one of these keys initialises
the input field with the min. or max. value
of the parameter
Use the E key followed by an exponent
to indicate a power of 10
Network
General principles of
the ETHERNET
network
Addressing
ETHERNET
physical addresses
Exit the window, validating
(or cancelling) the value
entered
Configuration of the "Network" interface (ETHERNET).
This interface uses the same connector (USB/RS232/ETHERNET), located on
the right-hand side of the instrument, and requires a specific ETHERNET / RJ
45 cable.
ETHERNET and TCP/IP (Transmission Protocol/Internet Protocol) are used to
communicate on a company's network.
Each piece of equipment under TCP/IP has a physical address (ETHERNET)
and an Internet address (IP).
A physical or ETHERNET address, stored in ROM or PAL, identifies each item
of equipment on the network. The physical address enables the equipment to
determine the source of data "packet" transmission.
The physical address is a number coded over 6 bytes represented in
hexadecimal form. Hardware manufacturers procure physical addresses and
allocate them incrementally when the product is manufactured. The physical
addresses cannot be modified.
2-channel Oscilloscopes II - 17
Description of the instrument (cont'd)
Description of the instrument
IP addresses
An IP address is coded over 4 bytes, displayed in decimal format.
# Example: 132.147.250.10). Each field may be coded between 0 and 255
(
and is separated by a decimal point.
Unlike the physical address, the IP address can be modified by the user.
You must ensure that the IP address is unique on your network. If an address
is duplicated, network operation becomes random.
The IP address is made up of two parts:
the network identifier (Network ID) identifying a given physical network
•
• the host identifier (Host ID) identifying a specific item of equipment on the
same network.
There are 5 addressing classes. Only classes A, B and C are used to identify
the equipment.
See below:
Class A
0XXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
Network ID Host ID
Class B
10XXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
Network ID Host ID
Class C
110XXXXX XXXXXXXX XXXXXXXX XXXXXXXX
Network ID Host ID
II - 18 2-channel Oscilloscopes
Description of the instrument
Description of the instrument (cont'd)
SUBNET mask
and GATEWAY
DHCP Protocol
FTP protocol
If the result of the operation ' ET LOGIQUE ' between IP address of the
recipient of the message and the value of subnet mask is different from the
address of the recipient of the message, this message is sent to the gateway
which will be given the responsibility to forward it to destination.
The programming of the mask and the address of the gateway is possible on
the instrument, in the Advanced mode.
This protocol is used to automatically assign an IP address to the instrument
when it connects up to the network.
A DHCP (Dynamic Host Configuration protocol) server must be accessible on
this network (contact your network administrator to make sure that this server
is present).
A file can be transferred quickly between a PC and the instrument using FTP
(File Transfer Protocol).
To use the "FTP Server" function, open your favourite browser on the PC
(Firefox, Explorer 7, Chrome, ...) and type in the URL field:
"ftp://192.168.3.1/RAM:" to access the internal file system of instrument
IP address 192.168.3.1
"ftp://192.168.3.1/CARD:" to access the file system of instrument SDCARD
IP address 192.168.3.1
The oscilloscope is can also be used as an FTP client.
See §. Applications p. 168.
HTTP protocol
LPD protocol
The instrument integrating the 'HTTP server' protocol functions like a WEB
server and can be accessed from a PC using a standard browser (EXPLORER,
NETSCAPE, FIREFOX …). You can then reach the most current adjustments
and visualize traces on your PC.
To use it, open the browser on the PC and, in the URL field, type the IP
address of the instrument, preceded by "http:"
# Example: http://192.168.3.1
See p. 138.
To be able to display the traces, you must install on your PC the
Java Virtual Machine JVM Oracle 1.4.2 (or higher).
(This JVM can be dowloaded from the site http://www.java.com).
This protocol (Line Printer Daemon) is used by most of the printers connected
to an ETHERNET network, but also by the printing server units which handle
conversion between ETHERNET and CENTRONICS (
and UNIX and LINUX workstations.
An LPD server can also be installed on a PC (available as an option with
WINDOWS 2000 or XP).
In all cases, the instrument is an LPD client which has to be configured to
indicate to it the IP address of the LPD server (the workstation PC or directly
the printer) and the logical name of the printer managed by the server.
# Example: Jet Admin)
See §. Applications p. 169.
2-channel Oscilloscopes II - 19
Description of the instrument
II - 20 2-channel Oscilloscopes
Micro SD Memory Card
Micro SD Memory Card
Introduction
Installation
Location
Insertion/Extraction
The internal memory of the oscilloscope (2 MB) may be extended by using an
SD Card (128 MB - 2 GB).
The oscilloscope accepts the Micro-SD format (but not Micro-SDHC).
The File system supported is FAT12 and FAT16.
FAT32 format is not compatible with the oscilloscope.
The SD Card compartment is located on the right-hand side of the oscilloscope
near the communications interface connector.
- Insert the SD Card, in the card compartment, with the contact surface facing
you and the notches facing down. The printed surface is not visible.
- Push to the click Æ the card is in position.
Operation
Recording
a file
- To remove the card, press slightly on the card itself and support it while
removing.
• The filename is limited to a maximum of 20 characters + extension.
If this rule is not observed, the message: 'Filename too long’ is displayed.
• If the name already exists or is incompatible, an error message
‘Impossible! File already exists' will be displayed.
• By moving the pointer
onto the names of the files, you will see their
characteristics displayed (date and time saved and size).
2-channel Oscilloscopes III - 21
Micro SD Memory Card (cont’d)
Micro SD Memory Card
Special folder
"Hot Plugging"
A specific folder on the SD Card, called "metrix", is used for recording files
by the oscilloscope.
From within the oscilloscope, the user can only act in this file:
• File creation,
• File saving,
• File deletion.
The oscilloscope sees only the files from this folder.
If, at the moment of file saving, the "metrix" folder does not exist, it is
automatically created.
This type of behaviour is similar to that of digital cameras and is easy to
understand.
It is possible to insert or remove an SD Card from its compartment, even
when the oscilloscope is running. Never remove a card while a file is being
written on it. Doing so can cause the file save operation to fail, and even
damage the memory card.
If a window displaying the memory was open during card insertion/removal,
it is recommended to close it, then to open it again to update the display.
Formatting the
SD Card
The SD Card is formatted using a PC. It cannot be formatted via the
oscilloscope.
Two options:
- either using Windows software
- or using a specialised software
See next page.
directly
application.
III - 22 2- channel Oscilloscopes
Micro SD Memory Card
Micro SD Memory Card (cont’d)
with Windows
Formatting
1.
2.
(French Windows XP example shown)
Insert the SD Card into the SD Card slot of your PC, or using the special
USB adapter.
Access the workstation window by clicking on:
Here, the
SD Card is
represented
by disk "E:"
By a right click on the disk, representing the SD Card, select the option
3.
"Format..."
2-channel Oscilloscopes III - 23
Micro SD Memory Card (cont’d)
The "Format disk…" window appears:
Micro SD Memory Card
4.
5.
Formatting using
specialised
software
In the "File System" block, select option FAT (not FAT32, which is not
compatible with the oscilloscope).
Click on: "Start".
A message appears, warning that the formatting will delete all data
memorised on the SD Card.
If you really wish to continue, click on "OK". Formatting will begin.
It is possible to download a free software called "SDFormatter" on this
website: www.sdcard.org
.
This software is specifically designed to format SD Cards.
FAT16 format, compatible with the oscilloscope, is selected by default.
III - 24 2- channel Oscilloscopes
Micro SD Memory Card
2-channel Oscilloscopes III - 25
Oscilloscope Mode
Oscilloscope Mode - The Keys
The Keys
5 "UTILITY" keys or
key pad
By pressing this key, you can select the "oscilloscope" mode.
Direct access to LCD contrast adjustment.
When this key is pressed, the display mode switches from normal to
"full screen" display (and vice versa).
The screen is organized in such a way as to leave an optimum trace plotting
surface area: removal of: the menu bar,
the parameters of the traces of the time base,
the bargraph.
Only the permanent settings and the measurements will remain.
The curves displayed in full screen mode are obtained by linear interpolation.
The controls on the front panel remain active.
Triggers a hardcopy in accordance with the configuration chosen in the "Util"
and "Hardcopy" menus.
A second press before the end of the process will interrupt the current printout.
If printing is impossible, a "Printing error" message will be sent.
1 "AUTOSET" key
Selective
"AUTOSET"
+
The "
printing is in progress.
The first press will freeze the traces on the screen. They will be displayed in a
lighter colour as a reference to be compared with another acquisition.
A second press will erase them: they will then be lost.
• Traces will be saved only through the "Memory
• The reference memories will be accompanied by their reference number.
Automatic optimum adjustment by Autoset on the channels where the signal is
applied.
This concerns the following parameters: the coupling, the vertical sensitivity,
the time base, the gradient, the framing and the trigger.
The lowest frequency signal is used as the trigger source.
If no trace is detected on the inputs, the autoset will be aborted.
When pressed at the same time as a CHx key (CH1 or CH4), this defines the
corresponding channel as the trigger source. It initiates an autoset which will
take this selection into account. Channel CHx then becomes active for
adjustment using the keys:
" symbol is displayed in front of the settings display zone when
Trace Save" menu.
IV - 26 2-channel Oscilloscopes
Oscilloscope Mode - The Keys
Oscilloscope Mode (cont’d)
4 "Trigger" keys
Sets the trigger level to the average value of the signal (50 %) without
modifying the trigger coupling.
When pressed in combination with a CHx key, this activates the same the
same function, after first selecting the corresponding channel as the trigger
source.
selects the trigger gradient (up
The gradient is indicated in the status area.
Successive presses can be used select one of the following acquisition
modes:
Single shot (Mono) = SINGLE
Triggered Trig
Automatic (Auto) = REFRESH
or down ) by successive presses.
• "SINGLE" mode:
A single acquisition is authorized, triggered by pressing the RUN HOLD
key.
For any further acquisition, the trigger circuit must be reset by pressing
the RUN HOLD key.
• "TRIGGERED" mode:
The screen's content is only refreshed when there is a trigger event
linked to the signals present on the oscilloscope's inputs (CH1, CH4,
EXT).
If there is no trigger event linked to the signals present on the inputs (or
if there is no signal on the inputs), the trace is not refreshed.
• "AUTOMATIC" mode:
The screen's content is refreshed even if the trigger level is not detected
on the signals present on the inputs.
When there is a trigger event, screen refreshing is managed as in the
"Triggered" mode.
• allows acquisition to be started and stopped in "TRIGGERED" and
"AUTOMATIC" modes.
• resets the trigger circuit in "SINGLE" mode.
Acquisition is initiated according to the conditions defined by the acquisition
mode (SGLE REFR key).
The acquisition status is indicated in the status area:
RUN = started
STOP = stopped
PRETRIG = acquisition
2-channel Oscilloscopes IV - 27
Oscilloscope Mode (cont'd)
Oscilloscope Mode - The Keys
3 "MEASURE" keys
activates or deactivates the display of the window for the 20 automatic
measurements on the reference trace.
When pressed in combination with a CHx key, it displays the
measurements concerning the corresponding channel.
By means of successive presses, this selects one of the displayed traces as
the reference trace for the automatic and manual measurements.
It appears in the "Measure" menu Reference.
Activates or deactivates the cursor display for manual measurements.
The cursors can be moved directly on the touch -sensitive pad using the
stylus.
• The "dt" measurements (time difference between the two cursors)
and "dv" measurements (voltage difference between the 2 cursors) are
indicated in the status area.
• The absolute value of the cursor selected is indicated in the "Current
Settings” area.
3 "HORIZONTAL" keys
or key pads
Adjustment of the time base coefficient (T/DIV).
If the zoom is off, setting of the trigger position in the acquisition memory.
If the zoom is on, setting of the screen position in the acquisition memory.
Activates or deactivates the "Zoom" function.
By default, the zoom is performed around the samples located in the
middle of the screen.
A zone can be zoomed by tracing a rectangle around the area to be
enlarged using the stylus on the touch-sensitive pad. The sensitivity, time
base and horizontal and vertical alignment values are recalculated
automatically.
IV - 28 2-channel Oscilloscopes
Oscilloscope Mode - The Keys
Oscilloscope Mode (cont'd)
Definition of terms
5 "VERTICAL" keys
or key pads
used
Validated channel: Display enabled, trace displayed after RUN
Displayed channel: Channel validated, trace present on the screen
Selected channel: The parameters of this channel can be set with the keys:
and
Step 1 Step 2 Step 3
Before pressing one of the
following keys :
The channel concerned is
not displayed.
The channel concerned is
displayed, but not selected.
The channel concerned is
displayed and selected.
Press
After pressing one of the
preceding keys:
The channel is displayed and
selected.
On CH1 and CH4, the vertical
sensitivity and the vertical
position are assigned to the
channel selected.
The channel is selected.
The signal is erased after a
double press.
A long press on one of the keys CHx causes a vertical autoset:
• This modifies the sensitivity and vertical positioning of the channel in
question.
• It optimizes the display on the screen by activating and selecting the
channel.
• It does not modify the time base.
2-channel Oscilloscopes IV - 29
Oscilloscope Mode (cont'd)
Oscilloscope Mode - The Keys
5 "VERTICAL" keys
or key pads
(cont’d)
Activates or deactivates horizontal splitting of the display zone.
When activated, the "Full Trace" function is indicated by:
- the presence of a continuous horizontal line in the middle of the display
area
- horizontal splitting of the graticule.
After activation of the function:
- traces 1 and 3 are assigned to the upper part of the display,
- traces 2 and 4 are assigned to the lower part in order to prevent overlays.
The traces can then be moved vertically in the two zones.
This function can also be used in "full screen" mode.
Successive presses allow selection of the input coupling (AC, DC or GND)
for the last channel selected.
The coupling is indicated in the channel parameters area:
AC :
DC :
GND :
Adjustment of the vertical sensitivity of the last channel selected:
increases the vertical sensitivity
reduces the vertical sensitivity
Adjustment of the vertical position of the last channel selected:
moves it upwards
moves it downwards
IV - 30 2-channel Oscilloscopes
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