Tektronix TBS1000B Series User manual

TBS1000B and TBS1000B-EDU Series
Digital Storage Oscilloscopes
ZZZ
User Manual
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Getting Started
TBS1000B and TBS1000B-EDU Series Digital Storage Oscilloscopes are small,
lightweight, benchtop instruments, which you can use to take ground-referenced
measurements.
This chapter describes how to do the following tasks:
Install your product
Perform a brief functional check
Perform a probe check and compensate probes
Match your probe attenuation factor
Use the self calibration routine
NOTE. You can select a language to display on the screen after you power on
the oscilloscope. At any time, you can access the Utility ►Language option to
select a language.
General Features
Model Channels Bandwidth Sample rate Display
TBS1052B-EDU 250MHz 1 GS/s Color
TBS1052B 250MHz 1 GS/s Color
TBS1072B-EDU 270MHz 1 GS/s Color
TBS1072B 270MHz 1 GS/s Color
TBS1102B-EDU 2 100 MHz 2 GS/s Color
TBS1102B 2 100 MHz 2 GS/s Color
TBS1152B-EDU 2 150 MHz 2 GS/s Color
TBS1152B 2 150 MHz 2 GS/s Color
TBS1202B-EDU 2 200 MHz 2 GS/s Color
TBS1202B 2 200 MHz 2 GS/s Color
Context-sensitive help system
7-inch color LCD display
Educational courseware integrated in the instrument (EDU models only)
Limit tests, data logging, and trend plots (non-EDU models only)
Dual-channel independent counters
Selectable 20 MHz bandwidth limit
2,500 point record length for each channel
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Getting Started
Autoset
Autoranging
Setup and waveform storage
USB Flash Drive port for file storage
PC communications through the USB Device port with OpenChoice PC
Communications software
Connect to a GPIB controller through an optional TEK-USB-488 adapter
Cursors with readouts
Trigger frequency readout
34 automatic measurements — and measurement gating
Waveform averaging and peak detection
Math functions: +, -, and × operations
Fast Fourier Transform (FFT)
Pulse Width trigger capability
Video trigger capability with line-selectable triggering
External trigger
Variable persistence display
User interface and help topics in 11 languages
Zoom feature
Installation
Power Cord Use only the power cord provided with your oscilloscope. Appendix C:
Accessories lists the standard and the optional accessories.
Power Source Use a power source that delivers 90 to 264 VACRMS,45to66Hz.Ifyouhavea
400 Hz power source, it must deliver 90 to 132 VACRMS, 360 to 440 Hz.
The product's maximum power consumption is 30 W.
Security Loop Use a standard laptop computer security lock, or thread a security cable through
the built-in cable channel to secure your oscilloscope to your location.
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Getting Started
Functional Check
Perform this functional check to verify that your oscilloscope is operating
correctly.
ON/OFF button
1. Power on the oscilloscope.
Push the Default Setup button.
The default Probe option attenuation setting is
10X.
Default Setup button
PROBE COMP
2. Connect the TPP0051, TPP0101, or TP0201
probe to channel 1 on the oscilloscope. To do this,
align the slot in the probe connector with the key
on the channel 1 BNC, push to connect, and twist
to the right to lock the probe in place.
Connect the probe tip and reference lead to the
PROBE COMP terminals.
3. Push the Autoset button. Within a few seconds,
you should see a square wave in the display of
about 5 V peak-to-peak at 1 kHz.
Push the channel 1menu button on the front panel
twice to remove channel 1, push the channel
2menu button to display channel 2, and repeat
steps 2 and 3.
Calibration: PASSED 4. Check that the instruction passed the calibration
tests. Push Utility ►- more - page 1 of 2 (push
more again on EDU models) ►System Status
►Misc.. Look for Calibration PASSED
Security cable channel Security lock hole Power cord
Ventilation NOTE. The oscilloscope cools by convection. Keep two inches clear on the sides
and top of the product to allow adequate air flow.
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Getting Started
Probe Safety
Check and observe probe ratings before using probes.
A guard around the TPP0051, TPP0101, or TPP0201 probe body provides a finger
barrier for protection from electric shock.
Finger guard
WARNING. To avoid electric shock when using the probe, keep fingers behind
the guard on the probe body.
To avoid electric shock while using the probe, do not touch metallic portions of
the probe head while it is connected to a voltage source.
Connect the probe to the oscilloscope, and connect the ground terminal to ground
before you take any measurements.
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Getting Started
Manual Probe Compensation
You can manually perform this adjustment to match your probe to the input
channel.
PROBE COMP Autoset
button
1. Push the 1►Probe ►Voltage ►Attenuation
option and select 10X. Connect the appropriate
TPP0051, TPP0101, or TPP0201 probe to
channel 1 on the oscilloscope. If you use the
probe hook-tip, ensure a proper connection by
firmly inserting the tip onto the probe.
2. Attach the probe tip to the PROBE COMP
~5V@1kHz terminal and the reference lead to
the PROBE COMP chassis terminal. Display the
channel, and then push the Autoset button.
Overcompensated
Undercompensated
Compensated correctly
3. Check the shape of the displayed waveform.
4. If necessary, adjust your probe.
Repeat as necessary.
Probe Attenuation Setting
Probes are available with various attenuation factors which affect the vertical
scale of the signal.
Select the factor that matches the attenuation of your probe. For example, to
match a probe set to 10X connected to CH 1, push the 1►Probe ►Volt age ►
Attenuation option, and select 10X.
NOTE. The default setting for the Attenuation option is 10X.
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Getting Started
If you change the Attenuation switch on a P2220 probe, you also need to change
the oscilloscope Attenuation option to match. Switch settings are 1X and 10X.
Attenuation switch
NOTE. When the Attenuation switch is set to 1X, the P2220 probe limits the
bandwidth of the oscilloscope to 6 MHz. To use the full bandwidth of the
oscilloscope, be sure to set the switch to 10X.
Current Probe Scaling
Current probes provide a voltage signal proportional to the current. You need to
set the oscilloscope to match the scale of your current probe. The default scale is
10 A/V.
For example, to set the scale for a current probe connected to channel 1, push the
1►Probe►Current ►Scale option, and select an appropriate value.
Self Calibration
The self calibration routine lets you optimize the oscilloscope signal path for
maximum measurement accuracy. You can run the routine at any time but you
should always run the routine if the ambient temperature changes by 5 °C (9 °F)
or more. The routine takes about two minutes.
For accurate calibration, power on the oscilloscope and wait twenty minutes to
ensure it is warmed up.
To compensate the signal path, disconnect any probes or cables from the input
connectors. Then, access the Utility ►Do Self Cal option, and follow the
directions on the screen.
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Getting Started
Firmware Updates Through the Internet
Update your TBS1000B’s firmware to take advantage of new features and bug
fixes. You can use the Internet and a USB flash drive to update your oscilloscope.
If you do not have access to the Internet, contact Tektronix for information on
update procedures.
Check the version of your
current firmware
1. Power on the oscilloscope.
2. For the TBDS1000B: Push Utility ►- more - page 1 of 2 ►System Status
►Misc..
For the TBDS1000B-EDU: Push Utility ►- more - page 1 of 3 ►-more-
page 2 of 3 ►System Status ►Misc..
3. The oscilloscope displays the firmware version number.
Check the version of the
latest available firmware
1. Open up a Webbrowserandgotowww.tektronix.com/software.
2. Enter “TBS1000B” in the search box.
3. Scan the list of available software for the latest TBS1000B firmware. Check
the version number.
If the latest available
firmware Is newer than that
on your TBS1000B, update
your product’s firmware
1. Download the latest firmware from www.tektronix.com/software to your PC.
Unzip the files, if needed, and copy the designated firmware file into the root
folder of a USB flash drive.
2. Insert the USB flash drive into the front-panel USB port on your oscilloscope.
3. Push Utility ►-more-page1of2►File Utilities ►-more-page1of2
►Update Firmware ►Update Firmware
It takes several minutes to update the firmware. Your oscilloscope will prompt
you when the update is complete. Do not remove the USB flash drive or power
off the oscilloscope until the firmware update is complete.
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Operating Basics
The front panel is divided into easy-to-use functional areas. This chapter provides
you with a quick overview of the controls and the information displayed on the
screen.
Display Area
In addition to displaying waveforms, the display provides details about the
waveform and the oscilloscope control settings.
NOTE. For details on displaying the FFT function, (See page 53, Displaying
the FFT Spectrum.)
The items shown below may appear in the display. Not all of these items are
visible at any given time. Some readouts move outside the graticule area when
menus are turned off.
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Operating Basics
1. The acquisition readout shows when an acquisition is running or stopped.
Icons are:
Run: Acquisition enabled
Stop: Acquisitions not enabled.
2. The trigger position icon shows the trigger position in the acquisition. Turn
the Horizontal Position knob to adjust the position of the marker.
3. The trigger status readout shows:
Armed: The oscilloscope is acquiring pretrigger data. All triggers are ignored
in this state.
Ready: All pretrigger data has been acquired and the oscilloscope is ready to
accept a trigger.
Trig’d: The oscilloscope has seen a trigger and is acquiring the posttrigger
data.
Stop: The oscilloscope has stopped acquiring waveform data.
Acq. Complete: The oscilloscope has completed a Single Sequence
acquisition.
Auto: The oscilloscope is in auto mode and is acquiring waveforms in the
absence of trigger.
Scan: The oscilloscope is acquiring and displaying waveform data
continuously in scan mode.
4. The center graticule readout shows the time at the center graticule. The
trigger time is zero.
5. The trigger level icon shows the Edge or Pulse Width trigger level on the
waveform. The icon color corresponds to the trigger source color.
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Operating Basics
6. The trigger readout shows the trigger source, level, and frequency. Trigger
readouts for other trigger types show other parameters.
7. The horizontal position/scale readout shows the main time base setting (adjust
with the Horizontal Scale knob).
8. The channel readout shows the vertical scale factor (per division) for each
channel. Adjust with the Vertical Scale knob for each channel.
9. The waveform baseline indicator shows the ground reference points (the
zero-volt level) of a waveform (ignoring the effect of offset). The icon colors
correspond to the waveform colors. If there is no marker, the channel is not
displayed.
Message Area The oscilloscope displays a message area at the bottom of the screen that conveys
the following types of helpful information:
Suggestion of what you might want to do next, such as when you push the
Measure button and then the Ch1 button:
Use multipurpose purpose knob to select measurement type
Information about the action the oscilloscope performed, such as when you
push the Default Setup button:
Default setup recalled
Using the Menu System
When you push a front-panel button, the oscilloscope displays the corresponding
menu on the right side of the screen. The menu shows the options that are available
when you push the unlabeled option buttons directly to the right of the screen.
Vertical Controls
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Operating Basics
Position (1 and 2). Positions a waveform vertically.
1&2Menu. Displays the Vertical menu selections and toggles the display of the
channel waveform on and off.
Scale (1 & 2). Selects vertical scale factors.
Horizontal Controls
Position. Adjusts the horizontal position of all channel and math waveforms. The
resolution of this control varies with the time base setting.
NOTE. To make a large adjustment to the horizontal position, turn the Horizontal
Scale knob to a larger value, change the horizontal position, and then turn the
Horizontal Scale knob back to the previous value.
NOTE.To set the horizontal position to zero, push the horizontal position knob.
Acquire. Displays the acquisition modes — Sample, Peak Detect, and Average.
Scale. Selects the horizontal time/division (scale factor).
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Operating Basics
Trigger Controls
Trigger Menu. When it is pressed once, it displays the Trigger Menu. When it is
kept pressed for more than 1.5 seconds, it will show the trigger view, meaning
it will display the trigger waveform in place of the channel waveform. Use the
trigger view to see how the trigger settings, such as coupling, affect the trigger
signal. Releasing the button will stop the trigger view.
Level. When you use an Edge or Pulse trigger, the Level knob sets the amplitude
level that the signal must cross to acquire a waveform. Push this knob to set
the trigger level to the vertical midpoint between the peaks of the trigger signal
(set to 50%).
Force Trig. Use this to complete the waveform acquisition whether or not the
oscilloscope detects a trigger. This is useful for single sequence acquisitions
and Normal trigger mode. (In Auto trigger mode, the oscilloscope automatically
forces triggers periodically if it does not detect a trigger.)
Menu and Control Buttons
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Operating Basics
Refer to the Reference chapter for detailed information on the menu and button
controls.
Multipurpose Knob. Thefunctionisdeterminedbythedisplayedmenuorselected
menu option. When active, the adjacent LED lights. The next table lists the
functions.
Active menu or option Knob operation Description
Cursor Turn Scroll to position the selected cursor
Help Turn, push Highlights entries in the Index.
Highlights links in a topic. Push to
select the highlighted item.
Math Turn, push Scroll to position and scale the Math
waveform. Scroll and push to select
the operation.
FFT Turn, push Scroll and push to select source,
window type and zoom values
Turn, push Scroll to highlight and push to select
the type of automatic measurement for
each source
Measure
Turn Scroll to position the selected gating
cursors
Save/Recall Turn, push Scroll to highlight and push to select the
action and file format. Scroll through
the list of files.
Trigger Turn, push Scroll to highlight and push to select
the trigger type, source, slope, mode,
coupling, polarity, sync, video standard,
trigger when operation. Turn to set the
trigger holdoff and pulse width values .
Utility Scroll, push Scroll to highlight and push to select
miscellaneous menu items. Turn to set
the backlight value.
Vertical Scroll, push Scroll to highlight and push to select
miscellaneous menu items.
Zoom Scroll Scroll to change the scale and position
of the zoom window.
Save/Recall. Displays the Save/Recall Menu for setups and waveforms.
Measure. Displays the automated measurements menu.
Acquire. Displays the Acquire Menu.
Ref. Displays the Reference Menu to quickly display and hide reference
waveforms stored in the oscilloscope non-volatile memory.
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Operating Basics
Utility. Displays the Utility Menu.
Cursor. Displays the Cursor Menu. Cursors remain visible (unless the Type
option is set to Off) after you leave the Cursor Menu but are not adjustable.
Help. Displays the Help Menu.
Default Setup. Recalls the factory setup.
Autoset. Automatically sets the oscilloscope controls to produce a usable display
of the input signals. When held for more than 1.5 seconds, displays the Autorange
Menu, and activates or deactivates the autoranging function.
Single. (Single sequence) Acquires a single waveform and then stops.
Run/Stop. Continuously acquires waveforms or stops the acquisition.
Save. By default, performs the Save function to the USB flash drive.
Input Connectors
1&2. Input connectors for waveform display.
Ext Trig. Input connector for an external trigger source. Use the Trigger Menu to
select the Ext, or Ext/5 trigger source. Push and hold the Trigger Menu button
to see trigger view, which will show how the trigger settings affect the trigger
signal, such as trigger coupling.
PROBE COMP. Probe compensation output and chassis reference. Use to
electrically match a voltage probe to the oscilloscope input circuit. (See page 6,
Manual Probe Compensation.)
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Other Front-Panel Items
USB Flash Drive port
USB Flash Drive Port. Insert a USB flash drive for data storage or retrieval.
For flash drives with an LED, the LED blinks when saving data to or retrieving
data from the drive. Wait until the LED stops blinking before you remove the
drive.

Understanding Oscilloscope Functions
This chapter contains general information that you need to understand before
you use an oscilloscope. To use your oscilloscope effectively, you need to learn
about the following functions:
Setting up the oscilloscope
Triggering
Acquiring signals (waveforms)
Scaling and positioning waveforms
and their relationships to each other.
Setting Up the Oscilloscope
You should become familiar with several functions that you may use often when
operating your oscilloscope: Autoset, Autorange, saving a setup, and recalling
a setup.
Using Autoset Each time you push the Autoset button, the Autoset function obtains a stable
waveform display for you. It automatically adjusts the vertical scale, horizontal
scale and trigger settings. Autoset also displays several automatic measurements
in the graticule area, depending on the signal type.
Using Autorange Autorange is a continuous function that you can enable or disable. The function
adjusts setup values to track a signal when the signal exhibits large changes or
when you physically move the probe to a different point. To use autorange, push
the Autoset button for more than 1.5 seconds.
Other Front-Panel Items
USB Flash Drive port
flash drive for data storage or retrieval.
For flash drives with an LED, the LED blinks when saving data to or retrieving
data from the drive. Wait until the LED stops blinking before you remove the
drive.
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Understanding Oscilloscope Functions
Saving a Setup The oscilloscope saves the current setup if you wait five seconds after the last
change before you power off the oscilloscope. The oscilloscope recalls this setup
the next time you apply power.
You can use the Save/Recall Menu to save up to ten different setups.
You can also save setups to a USB flash drive. The oscilloscope accommodates
aUSBflash drive for removable data storage and retrieval. (See page 59, USB
Flash Drive Port.)
Recalling a Setup The oscilloscope can recall the last setup before the oscilloscope was powered off,
any saved setups, or the default setup. (See page 92, Save/Recall.)
Default Setup The oscilloscope is set up for normal operation when it is shipped from the
factory. This is the default setup. To recall this setup, push the Default Setup
button. To view the default settings, refer to Appendix D: Default Setup.
Triggering
The trigger determines when the oscilloscope starts to acquire data and to display
a waveform. When a trigger is set up properly, the oscilloscope converts unstable
displays or blank screens into meaningful waveforms.
Triggered waveform Untriggered waveforms
For oscilloscope-specific descriptions, refer to the Operating Basics chapter. (See
page 13, Trigger Controls.) Refer also to the Reference chapter. (See page 96,
Trigger Controls.)
When you push the Run/Stop or Single button to start an acquisition, the
oscilloscope goes through the following steps:
1. Acquires enough data to fill the portion of the waveform record to the left of
the trigger point. This is called the pretrigger.
2. Continues to acquire data while waiting for the trigger condition to occur.
3. Detects the trigger condition.
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Understanding Oscilloscope Functions
4. Continues to acquire data until the waveform record is full.
5. Displays the newly-acquired waveform.
NOTE. For Edge and Pulse triggers, the oscilloscope counts the rate at which
trigger events occur to determine trigger frequency. The oscilloscope displays
the frequency in the lower right corner of the screen.
Source You can use the Trigger Source options to select the signal that the oscilloscope
uses as a trigger. The source can be the AC power line (available only with Edge
triggers), or any signal connected to a channel BNC or to the Ext Trig BNC.
Types The oscilloscope provides three types of triggers: Edge, Video, and Pulse Width.
Modes You can select the Auto or the Normal trigger mode to define how the oscilloscope
acquires data when it does not detect a trigger condition. (See page 97, Mode
Options.)
To perform a single sequence acquisition, push the Single button.
Coupling You can use the Trigger Coupling option to determine which part of the signal
will pass to the trigger circuit. This can help you attain a stable display of the
waveform.
To use trigger coupling, push the Trigger Menu button, select an Edge or Pulse
trigger, and select a Coupling option.
NOTE. Trigger coupling affects only the signal passed to the trigger system. It
does not affect the bandwidth or coupling of the signal displayed on the screen.
To view the conditioned signal being passed to the trigger circuit, enable trigger
view by pushing and holding down the Trigger Menu button for more than
1.5 seconds.
Position The horizontal position control establishes the time between the trigger and the
screen center. Refer to Horizontal Scale and Position; Pretrigger Information
for information on how to use this control to position the trigger. (See page 21,
Horizontal Scale and Position; Pretrigger Information.)
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Understanding Oscilloscope Functions
Slope and Level The Slope and Level controls help to define the trigger. The Slope option (Edge
trigger type only) determines whether the oscilloscope finds the trigger point on
the rising or the falling edge of a signal. The Trigger Level knob controls where
on the edge the trigger point occurs.
Rising edge Falling edge
Trigger level can be adjusted
vertically
Trigger can be rising or falling
Acquiring Signals
When you acquire a signal, the oscilloscope converts it into a digital form and
displays a waveform. The acquisition mode defines how the signal is digitized,
and the time base setting affects the time span and level of detail in the acquisition.
Acquisition Modes There are three acquisition modes: Sample, Peak Detect, and Average.
Sample. In this acquisition mode, the oscilloscope samples the signal in evenly
spaced intervals to construct the waveform. This mode accurately represents
signals most of the time.
However, this mode does not acquire rapid variations in the signal that may occur
between samples. This can result in aliasing, and may cause narrow pulses to be
missed. In these cases, you should use the Peak Detect mode to acquire data.
(Seepage22,Time Domain Aliasing.)
Peak Detect. In this acquisition mode, the oscilloscope finds the highest and
lowest values of the input signal over each sample interval and uses these values
to display the waveform. In this way, the oscilloscope can acquire and display
narrow pulses, which may have otherwise been missed in Sample mode. Noise
will appear to be higher in this mode.
Average. In this acquisition mode, the oscilloscope acquires several waveforms,
averages them, and displays the resulting waveform. You can use this mode to
reduce random noise.
Time Base The oscilloscope digitizes waveforms by acquiring the value of an input signal
at discrete points. The time base allows you to control how often the values are
digitized.
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Understanding Oscilloscope Functions
To adjust the time base to a horizontal scale that suits your purpose, use the
Horizontal Scale knob.
Scaling and Positioning Waveforms
You can change the display of waveforms by adjusting the scale and position.
When you change the scale, the waveform display will increase or decrease in size.
When you change the position, the waveform will move up, down, right, or left.
The channel indicator (located on the left of the graticule) identifies each
waveform on the display. The indicator points to the ground reference level of
the waveform record.
You can view the display area and readouts. (See page 9, Display Area.)
Vertical Scale and Position You can change the vertical position of waveforms by moving them up or down in
the display. To compare data, you can align a waveform above another or you can
align waveforms on top of each other.
You can change the vertical scale of a waveform. The waveform display will
contract or expand relative to the ground reference level.
For oscilloscope-specific descriptions, refer to the Operating Basics chapter. (See
page 11, Vertical Controls.) ReferalsototheReference chapter. (See page 106,
Vertical Controls.)
Horizontal Scale and
Position; Pretrigger
Information
You can adjust the Horizontal Position control to view waveform data before
the trigger, after the trigger, or some of each. When you change the horizontal
position of a waveform, you are actually changing the time between the trigger
and the center of the display. (This appears to move the waveform to the right
or left on the display.)
Forexample,ifyouwanttofind the cause of a glitch in your test circuit, you
might trigger on the glitch and make the pretrigger period large enough to capture
data before the glitch. You can then analyze the pretrigger data and perhaps find
the cause of the glitch.
You change the horizontal scale of all the waveforms by turning the Horizontal
Scale knob. For example, you might want to see just one cycle of a waveform to
measure the overshoot on its rising edge.
The oscilloscope shows the horizontal scale as time per division in the scale
readout. Since all active waveforms use the same time base, the oscilloscope only
displays one value for all the active channels, except when you use zoom feature.
For oscilloscope-specific descriptions, refer to the Operating Basics chapter. (See
page 12, Position.)ReferalsototheReference chapter. (See page 85, Horizontal.)
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