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Copyright ©
Pôle Test et Mesure de CHAUVIN-
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
X02883C00 - Ed. 1 - 06/07
General Instructions
Contents
General instructions
Precautions and safety measures.......................................................4
Symbols used........................................................................................5
Warranty.................................................................................................5
Maintenance and metrological verification ........................................5
Unpacking - Repacking ........................................................................5
Cleaning.................................................................................................5
Description of the instrument
OX 6xxx Views.......................................................................................7
Terminal Boards, stylus .....................................................................10
Front Panel ..........................................................................................11
Network................................................................................................12
Oscilloscope Mode
Display..................................................................................................19
"Trig" Trigger menu .................................33
"Horiz" Horizontal menu .................................39
"Display" Display menu .................................44
"Measure" Measurement menu .................................46
"Memory" menu................................. 51
"Util" Utilities menu .................................54
"?" Help menu » .................................59
Chapter I
Introduction .......................................................................................... 4
Chapter II
Presentation, starting up..................................................................... 6
Chapter III
Keys......................................................................................................14
Menus
"Vert" Vertical menu ................................. 26
Multimeter Mode
Chapter IV
Keys.................................................................................................60
Display.............................................................................................62
Menus..............................................................................................65
"Vert" Vertical menu................................66
"Trig" Trigger menu................................68
"Horiz" Horizontal menu................................68
"Display" Display menu................................68
"Measure" Measurement menu................................69
"Memory" menu................................70
"Util" Utilities menu................................70
"?" Help menu »................................70
…/…
I - 2 2-channel Oscilloscopes
General Instructions
Contents (cont’d)
Applications
Display of the calibration signal........................................................71
Automatic measurements .................................................................. 72
Cursor measurements........................................................................73
Phase offset measurement with cursor............................................73
Automatic phase measurement.........................................................73
Manual phase measurement..............................................................73
Video signal display............................................................................74
Examination of a specific TV line...................................................... 76
“ROLL” Mode display of slow phenomena...................................... 77
Min/Max Acquisition ...........................................................................78
Technical Characteristics
Multimeter mode .................................................................................95
Error messages...................................................................................96
Chapter V
Measurement in “Multimeter” Mode.................................................80
ETHERNET network application examples ......................................82
WEB Server..........................................................................................84
Chapter VI
Oscilloscope mode .............................................................................88
General Specifications - Mechanical Specifications
Supply
Index
Firmware update :
You may use PC software provided on the CD_ROM and consult Internet site
www.chauvin-arnoux.com
Chapter VII
page 97
Chapter VIII
page 98
page 99
2-channel Oscilloscopes I - 3
General Instructions
General Instructions
Introduction
Precautions and
safety measures
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-M
OX 6062-C
OX 6152-C
OX 6202-C
The OX 6062 and OX 6152 models integer also a multimeter mode.
Caution : Measurement ground is connected to earth ground.
It complies with safety standard NF EN 61010-1 (2001), class1, 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.
•
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.
monochrom 2-channel 60 MHz 1 GHz sample
color 2-channel 60 MHz 1 GHz sample
color 2-channel 150 MHz 1 GHz sample
color 2-channel 200 MHz 1 GHz sample
•
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 in relation to
earth and can be powered by a 90 to 264 V mains network.
Definition of
measurement
categories
before use
during use
CAT I
CAT II
• Comply with environmental and storage conditions.
• Power supply : it must be connected to the mains network
(from 90 to 264 VAC). Make sure that it is in good working conditions.
• 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.
• As a safety measure, use only suitable cords and accessories supplied with
the instrument or approved by the manufacturer.
Measurement category I is for measurements performed on circuits
not directly connected to mains.
Example : circuits not derived from mains and specially protected
mains-derived circuits.
Measurement category II is for measurements performed on circuits
connected directly to the low-voltage installation.
Example : power supply for domestic appliances and portable tools
I - 4 2-channel Oscilloscopes
General Instructions
General instructions (cont'd)
Symbols used on
the instrument
Warranty
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.
Earth
This equipment is guaranteed for 2 years against any defect in materials or
workmanship, in accordance with the general terms and conditions of sale, .
During this period, 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.
According to WEEE directive 2002/96/EC
Maintenance and
metrological
verification
Unpacking Repacking
Cleaning
Before the equipment is opened, it must be disconnected from the mains supply
and the measurement circuits, and the operator must not become charged with
any static electricity. This could cause the destruction of internal parts.
Any adjustment, servicing or repair of the unit under power must be undertaken
only by qualified personnel, after reading the instructions in this manual.
A qualified person is a person who is familiar with the installation, its
construction, its use and the hazards that exist. They are authorized to activate
and deactivate the installation and equipment, in compliance with the safety
instructions.
Information and contact details : contact your nearest distributor.
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.
•
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.
2-channel Oscilloscopes I - 5
Description of the instrument
OX 6152
Oscilloscope
PT100 or TCK
Description of the instrument
This manual describes the operation of an OX 6152 oscilloscope.
Presentation
The adjustment of the 2 ways is accessible by the opposite keys.
This instrument is part of our range of portable oscilloscopes.
Its special feature is that it groups 2 instruments into one (OX 6062 and
OX 6152 only) :
FFT
function
OX 6062
OX 6152
•
a digital oscilloscope for laboratory use, intended for the analysis of the
Digital
Multimeter
OX 6062
OX 6202
•
DC voltage measurement
•
AC voltage measurement
(RMS)
•
clamps
•
•
•
•
•
Current measurement for
Resistance measurement
Condenser measurement
Diode test
Continuity test
Temperature measurement
signals encountered in electronics
•
OX 6062 and OX 6152 only : an 4,000-count multimeter.
Caution : “measurement ground is connected to earth ground".
The instrument works with a constant acquisition depth of 2500 counts.
Memory management is organized using a "Windows®"-type file system.
A large colour (or monochrome OX 6062-M) 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.
This instrument is completed by RS232, ETHERNET and CENTRONICS
communication interfaces (option).
Starting up
•
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. 9). 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
II - 6 2-channel Oscilloscopes
(see p. 58).
Description of the instrument
Description of the instrument (cont'd)
OX 6062
OX 6152
OX 6202
Front Panel
2-channel Oscilloscopes II - 7
Description of the instrument
Description of the instrument (cont'd)
OX 6062
OX 6152
OX 6202
Rear panel
Marking
II - 8 2-channel Oscilloscopes
Description of the instrument
Calibration
Description of the instrument (cont'd)
OX 6062
OX 6152
OX 6202
Interface
Marking
RS232/Ethernet
Connector
2-channel Oscilloscopes II - 9
signal
Extern
Trigger
Description of the instrument
OX 6062
Description of the instrument (cont'd)
Terminal board
OX 6152
OX 6202
OX 6062
OX 6152
marking
OX 6202
marking
Stylus
Magnetized base
12
12
1212
II - 10 2-channel Oscilloscopes
Description of the instrument
Description of the instrument (cont'd)
Front (description)
1 On/Standby/Off key
1 touch-sensitive pad
and stylus
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.
long press on this key.
If the instrument is not equipped with a battery, 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.
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.
4 "operating mode"
keys
28 keys only active
when pressed
You can select the operating mode of the instrument by pressing one of these
4 keys:
"oscilloscope"
"multimeter" (*) (not available on OX 6202)
"harmonic analyser" (not available)
"recorder" (not available)
(*) Caution : measurement ground is connected to earth ground
Shortcut access to the most common functions: see chapter on "The Keys" for
the "Oscilloscope", "Multimeter".
2-channel Oscilloscopes II - 11
Description of the instrument (cont'd)
Description of the instrument
Network
General principles of
the ETHERNET
network
Addressing
ETHERNET physical
addresses
IP addresses
Configuration of the "Network" interface (ETHERNET).
This interface uses the same connector (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.
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
010XXXXX XXXXXXXX XXXXXXXX XXXXXXXX
Network ID Host ID
II - 12 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).
FTP (File Transfer Protocol) is used in the oscilloscope for fast file
transfers to or from a PC.
To use it, open the browser on the PC and, in the URL field, type the IP
address of the instrument, preceded by "ftp:"
Example: ftp://192.168.3.1
The oscilloscope is an FTP server.
See §. Applications p. 87 and 82.
HTTP protocol
LPD protocol
With this protocol, the instrument can act as a WEB server and you can
access the most frequent settings and view traces on your PC using your
browser (EXPLORER, NETSCAPE, …)
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 §. Applications p. 84.
To be able to display the traces, you must install on your PC the Java Virtual
Machine JVM SUN 1.4.1 (or higher). This JVM can be dowloaded from the site
http://java.sun.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
(
Example: Jet Admin) 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.
See §. Applications p. 83.
2-channel Oscilloscopes II - 13
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 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 Trace Save" menu.
•
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
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
CHx key (CH1 or CH4), this defines the
III - 14 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 or down ) by successive presses.
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
•
"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 III - 15
Oscilloscope Mode (cont'd)
Oscilloscope Mode - The Keys
3 "MEASURE" keys
activates or deactivates the display of the window for the 19 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).
After a Zoom, the "Z-Pos." setting modifies the position of the screen 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.
III - 16 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
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.
Step 1 Step 2 Step 3
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 channel is not selected
any longer.
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.
The channel is displayed and selected.
2-channel Oscilloscopes III - 17
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
III - 18 2-channel Oscilloscopes
Oscilloscope Mode - Display
4. Menu bar
Oscilloscope Mode (cont'd)
Display
Display
Composition
Cursor1
The oscilloscope display is divided into 4 functional zones.
Direct access to
main settings
3. Display area
2. Control area
1. Status area
Display and
adjustment of
current value
2-channel Oscilloscopes III - 19
Oscilloscope Mode (cont'd)
Trig 1 Pretrig
Position and movement of
manual cursors
T
1
2
Oscilloscope Mode - Display
1. Status area
Bargraph
Cursor measurements
Movement towards left of
screen in acquisition
Permanent settings
memory
Three types of general information appear in this area:
•
The bargraph representing the screen position, the trigger and the
cursors in the acquisition memory.
•
The instrument permanent settings.
•
The measurements, when the cursors are present on the screen.
(1)dt=110,0µs, div=100.0µV
Representation and
movement of the screen in
acquisition memory
Permanent settings
Each element in the bargraph can be moved with the stylus.
This zone refers to the trigger status (mode, edge, source, current status).
Position and movement of
time trigger
Movement towards right of
screen in acquisition
memory
Example: AUTO 1 STOP
When the stylus is placed on this information, the "Trigger Parameters"
menu can be opened by pressing twice.
Cursor
measurements
This zone refers either to:
•
the horizontal (dt) and vertical (dv) differences between 2 cursors in the
case of manual measurements
Example:
•
phase measurement in the case of manual phase measurement (Ph).
Example: (1) Ph = 200.0°
•
the automatic measurements selected using the "Automatic
Measurements" or "Phase measurement" menus
Example: (2) F = 1.0000 kHz, Vpp = 7,500 V
(1) dt = 110.0 µs, div = 100.0 µV
III - 20 2-channel Oscilloscopes
Oscilloscope Mode - Display
Display of ZOOM mode
Oscilloscope Mode (cont'd)
2. Control area
The parameters displayed in this area are:
•
The parameters of each channel and trace: display, sensitivity, coupling,
bandwidth limitation, vertical scale, function, Zoom.
•
The time base value, the presence of a Zoom and a change in the signal
representation domain (FFT).
•
Active adjustment of the last selected element:
trigger level
trigger time position
channel offset value
X & Y position of cursor
• Time display, if no measurement has been selected.
Display of the trace parameters (in the
colour of the trace):
validity, coupling, bandwidth limitation,
sensitivity
Display of ZOOM mode
or
Display of the math function parameters
(in the colour of the trace):
validity, value of one division
Display of ZOOM mode
or
Display of memories (M): validity
Value of time base coefficient (s/div) in
oscilloscope mode or of the frequency
(Hz/div) in FFT mode
Contrast
•
The channels and functions can be validated using the stylus or the keys.
•
The "" symbol indicates whether a channel or function is selected, or
whether FFT mode is selected.
•
The settings of the time base (or the frequency) and the value of the active
parameter can be modified using the UP/DOWN button next to the display of
the current value.
•
After modification of the time base, the corresponding sampling frequency
is indicated in the settings area.
•
Double-tapping with the stylus on the parameters of a channel or on the
value of the time base, directly opens the associated menus:
- Sensitivity/Coupling and Vertical Scale, for the channels
- Vertical scale for the functions
-
Source, trigger mode and RUN/STOP, for the time base.
Change of signal representation domain
(FFT selection)
Indication and adjustment of last setting
selected
2-channel Oscilloscopes III - 21
Oscilloscope Mode (cont'd)
The grouped "Source" and "Trigger Mode" menus can be opened by a
double press with the stylus on the time base area.
RUN/STOP starts and stops acquisition from this menu. The acquisition
status is indicated in the status area on the screen.
The symbol "" indicates the source and trigger mode selected.
Oscilloscope Mode - Display
3. Display area
The graphic elements displayed associated with the traces in this area are:
•
a trigger time position indicator
•
a trigger level indicator
•
a trace number identifier
•
a vertical position indicator for the reference level of each trace
•
cursor position indicators linked to the trace for the automatic
automatic measurements
•
position indicators regarding the cursors linked or not to the trace
for manual measurements
•
selection of a zoom zone
III - 22 2-channel Oscilloscopes
Oscilloscope Mode - Display
9
8
1
3
4
5
2
1
2
6
6
Oscilloscope Mode (cont'd)
Display elements
12
>
10
ϕϕϕϕ
v
v
7
11
Definition of display
Refs. Elements selectable using the touch-sensitive pad
1
Trace displayed
2
3
4
5
6
7
8
9
10
11
Trace displayed
Vertical position indicator of the reference level of the trace
displayed and identification of the trace number
Indication of Trigger time position
Division of graticule
Position indicator of the cursors for the first automatic
measurement
Manual measurement cursor position indicator
Phase measurement cursor position indicator
Trigger level position indicator
Selection of a zoom zone
Indicator of trigger time position overshoot outside the display
window
Indicator of trigger level position overshoot outside the display
window.
12
Indicator of channel level overshoot outside the display
window.
2-channel Oscilloscopes III - 23
Oscilloscope Mode (cont'd)
Oscilloscope Mode - Display
Menu accessible
from display area
By double-tapping with the stylus in the
display area, the menu concerning the
display can be opened directly.
The "Full Screen" and "Zoom Out"
options are directly accessible
(see §. Display Menu).
It is possible to use the stylus to zoom in the display area by pulling a
rectangle.
After zooming in on part of the screen, the sensitivities of the traces and
the time base are recalculated.
•
The symbol "Z" appears in the signal and time base parameters
display.
•
The zoomed section is represented in the bargraph.
•
The "Zoom Out" menu (see §. Display Menu) can be used to return to
the original display, the zoom key de-activates the horizontal zoom.
•
The value of the horizontal zoom is adjusted to assign a calibrated
value to the horizontal scale (zoom factor: x 5 max.)
•
If the vertical selection of the zoom is greater than 6 divisions, no
vertical zoom is performed (zoom factor: x 16 max.).
All the symbols present in the display area:
- trigger indicators,
- trace position indicator,
- manual cursor position indicator,
- etc.
can be moved using the stylus.
The new modified symbol value is indicated in the current settings display
area.
The same applies to the selection of the
automatic and manual measurement
reference signal (see §. Measure Menu).
Calibration of the
touch-sensitive
screen
III - 24 2-channel Oscilloscopes
To optimize selection of the different elements present in the display area
using the stylus, calibration of the touch-sensitive screen may prove
necessary.
Select the "Touch Screen Calibration" option proposed in the display area
menu or in the Util menu.
Oscilloscope Mode - Display
Oscilloscope Mode (cont'd)
Calibration of the
touch-sensitive
screen (cont'd)
Corner of the touch screen
Follow the instructions on the screen
Use the stylus to point at the centre of the 4 patterns displayed on the
screen.
Validation of the input is indicated by modification of the pattern.
The pointing order is not important.
Once the 4 inputs have been recorded, validate the calibration with OK.
The touch-sensitive screen is calibrated and the display returns to normal
mode.
4. Menu bar
All the oscilloscope functions can be accessed via the main menus.
2-channel Oscilloscopes III - 25
Oscilloscope Mode (cont'd)
Oscilloscope Mode - The "Vertical" Menu
The "Vert" Menu
(∗)
(∗)
15MHz
(∗) Functions only accessible in
"Advanced" mode.
See §. Description, page 58.
III - 26 2-channel Oscilloscopes
Oscilloscope Mode - The "Vertical" Menu
Oscilloscope Mode (cont'd)
Display
ch1 ch4
Sensitivity / Coupling
Channel Sensitivity
Coupling
Opens the "Trace display" menu for validating or devalidating the traces.
The "" symbol in front of a trace indicates that it has been validated.
The traces can be validated or devalidated from the control area by using the
stylus.
Modify the parameters of channels ch1 and ch4 independently, as well as the
vertical scale of the trace selected.
Modifies the parameters of the selected channel.
Modification of the channel's sensitivity using the stylus on the scrollbar,
adjustable by sequence: from 2.5 mV to 200 V/div.
The sensitivity is indicated in the channel parameter display area. It takes into
consideration the parameters of the "Vertical scale" menu.
Modification of AC - DC - GND coupling
AC: blocks the DC component of the input signal and attenuates the
signals below 10 Hz
DC: transmits AC and DC components of the input signal
GND: internally, the instrument links the input of the channel selected to a
0 V reference level
The "" symbol indicates the coupling selected. Coupling is indicated in the
modified channel's parameter display area.
bw limit
Vertical scale
Coefficient
Limits to 15 MHz the bandwidth of the channel and its trigger circuit to reduce
display noise and false triggering.
The bandwidth of each channel can be limited to 5 kHz, 1.5 MHz or
15 MHz. The bandwidth limit of a channel is indicated in the control area by
following symbols :
This menu can also be called up by double-pointing with the stylus on the
required channel parameter display area.
Defines the vertical scale of the channel selected on the basis of the current
settings. Readings of the direct measurements of the value analyzed and its
unit are provided.
Assignment of a multiplication coefficient to the selected channel's sensitivity.
This can be modified with the stylus, using the table of usable numbers, after
selecting the "Coefficient" zone.
The
2-channel Oscilloscopes III - 27
Oscilloscope Mode (cont'd)
Oscilloscope Mode - The "Vertical" Menu
Measurement unit
math2 math3
Function definition
Init
Modification of the selected channel's vertical scale unit.
The modification is performed by means of the stylus, using the table of
usable characters after selecting the “measure unit” zone.
The key deletes the character preceding the cursor in this area.
The vertical scale unit will be indicated in the modified channel's parameter
display.
Reinitializes the multiplication coefficient to 1.00 and returns to the V
measurement unit.
Validation of the selections by "OK". Exit from the menu without modification
by "Cancel".
This menu can also be called up by double-pointing with the stylus on the
required channel's parameter display area (ch1 or ch4).
For the math2 math3 traces, definition of a mathematical function and the
vertical scale.
Menus present only in Advanced mode (see §. "Util" Menu).
Defines the mathematical function to be assigned to the selected trace by
means of a vertical keyboard, linking traces ch1and ch4, as well as M1 and
M4 if necessary.
Functions
8 predefined mathematical functions can be linked to the traces:
- Ch1 - Ch4 Ch1 + Ch4 Ch1 - Ch4 Ch4 - Ch1 Ch1 x Ch4 Ch1 / Ch4 Ch4 / Ch1
Validation of the selections by "OK". Exit from the menu without modification by
"Cancel".
If … then …
... the dynamic calculation of the
vertical scale is impossible
... the dynamic calculation of the vertical
scale is possible
Particular cases : Value of the measuring unit
... a message indicates that the
measuring unit on this function will
be vertical division (div).
... it takes into account of the
sensitivities of the channel sources.
Ch1 + Ch4 Sensitivity and measuring unit used on channel 1
Ch1 - Ch4 Sensitivity and measuring unit used on channel 1
In each cases, the measuring unit can be re-defined and a coefficient can be
applied to the measurement results (refer to §. Vertical scale).
Amplitude
Multiplying or dividing coefficients make it possible to optimize the
representation of the result :
/ 5 / 2 x 1 x 2 x 5
III - 28 2-channel Oscilloscopes
Oscilloscope Mode - The "Vertical" Menu
Oscilloscope Mode (cont'd)
Examples
Addition of two
Example 1
traces
Vhigh
Vpp(ch1) = Vpp(ch4) = 6 V
Sensitivity (ch1) = 1 V/div
Sensitivity (ch4) = 1 V/div
Traces ch1 and ch4 are optimised on 6 vertical divisions.
Vamp ch1 = 6 vertical divisions
Vamp ch4 = 6 vertical divisions
- math3 = ch1 + ch4 (Amplitude : x 1)
Vertical scale math3 = 1.00 div
Vpp math3 = 12.00 div
Vhigh math3 = 6.00 div
There is a high and low overshoot, so division by 2 is necessary to
optimize display of the result.
- math3 = (ch1 + ch4) / 2 (Amplitude : / 2)
Vertical scale math3 = 2.00 div
Vpp math3 = 6.00 div = 12.00 V
Vhigh math3 = 3.00 div = 6.00 V
Division by two adjusts the addition to the dynamics of the screen.
Vamp (math3) = 6 vertical divisions
The measuring unit and the sensitivity of ch1 are used during the
display of measurements.
You can then open the menu “Vertical Scale" of math3 (see §.
of the menu from:
math2, math3,
p. 32) to assign a coefficient to the
Opening
result and to modify the measuring unit.
2-channel Oscilloscopes III - 29
Oscilloscope Mode (cont'd)
Oscilloscope Mode - The "Vertical" Menu
Example 2
Multiplication
of two traces
As for the addition of traces, there is an even more significant high and low
overshoot. The overshoot is due to the increase in dynamics of the numbers
after a multiplication; to avoid this and standardize the result, the vertical
scale adapts. With an amplitude x 1, the product is included in the dynamics
of the screen. Moreover, the sensitivity of the math function is:
sensitivity
sensitivity
= sensitivity
math
= sensitivity
math3
x sensitivity
ch1
x sensitivity
ch1
ch4
ch4
x 4
x 4
= 5 x 5 x 4
= 100 VV
Vhigh
= Vhigh
math3
x Vhigh
ch1
ch4
= 10 x 10
=100 VV
(= 1 div)
Vamp(Ch1) = 4 vertical divisions
Vamp(Ch4) = 4 vertical divisions
math3 = (Ch1 * Ch4) (amplitude : x 1)
The result of the multiplication is translated into divisions on the screen.
III - 30 2-channel Oscilloscopes
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