4. Trigger Slope: Selects the edge trigger slope to Positive or Negative slope
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2.6 Input Connectors
CH 1/CH 2: Input connectors for waveform display.
EXT.: Input connector for an external trigger source. Use the Trigger Menu to select the
Ext. source.
Other Connector:
GND.: Ground terminal
USB PORT: Connect the B-Type Plug of USB cable to this port.
CAL.: Probe compensation output.
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Chapter 3 Functions
Set Oscilloscope
Set Vertical System
Set Horizontal System
Set Trigger System
Measure Signal
Utility Function
The Display System
Save/Load
Print
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3.1 Setup the Oscilloscope
Use “AUOSET” to display a signal automatically.
Auto setup functions one time each time you push the “AUTOSET” button. The function
obtains a stable waveform display for you. It automatically adjusts the vertical scale,
horizontal scale and trigger settings. Auto setup also displays several automatic
measurements in the graticule area, depending on the signal type.
Connect a signal to the CH1 input:
1. Connect a signal to the oscilloscope as described above.
2. Click the “Acquire -> Autoset” button.
The oscilloscope will change the current settings to display this signal.
Save Setup
The oscilloscope software saves the current setup before you close the oscilloscope
software. The oscilloscope recalls this setup when you run the software next time. You
can use the “Save Setup” menu to permanently save setting.
Load Setup
The oscilloscope can recall the last setup before the oscilloscope software was running,
any saved setups, or the factory setup. You can use the “Load Setup” menu to
permanently recall setup.
Factory Setup
The oscilloscope software is set up for normal operation when it is shipped from the
factory. This is the factory setup. Push the “Factory Setup” menu to recall this setup.
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3.2 Set Vertical System
Click “Channel” in main menu.
3.2.1 Change CH1/CH2
Click “CH1/CH2”in “Channel” menu.
The CH1 Menu:
The CH2 Menu:
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The CH1/CH2 control panel in sidebar:
The Vertical function:
Turn ON/OFF: Turn on/off the channel
Volt/DIV: Select the channel voltage/div
Coupling: Select the channel coupling
Probe: Select the channel probe attenuation
Filter: Select software filter
Reset: Set the channel vertical position to zero
Invert: Turn on/off the invert function.
Bandwidth Limit: Limit the channel bandwidth to 20MHz to reduce noise.
Change Volt/DIV
You can click “Volt/Div” in “CH1/CH2” to select the voltage.
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You can also change “CH1/CH2” voltage in side bar.
You cam left click and drag the mouse on the green knob or the yellow knob to change the
voltage.
Set Channel Coupling
Click “Coupling” in “Channel” menu.
You can set the coupling to DC, AC or GND. If you set the coupling to DC, it blocks the AC
component of the input signal.
Probe Attenuation Setting
Select the attenuation factor for the probe. To check the probe attenuation setting, toggle
the probe menu to match the attenuation factor of the probe.
This setting remains in effect before you changed again.
Click “Probe” in Vertical Setup window to select the probe attenuation.
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The probe setting window in the sidebar:
Caution: The attenuation factor changes the vertical scale of the oscilloscope so that the
measurement results refect the actual voltage levels at the probe tip.
Invert
The invert function turns the displayed waveform 180 degrees, with respect to the ground
level. When the oscilloscope is triggered on the inverted signal, the trigger is also inverted.
Turn on Invert:
Turn off Invert:
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The following picture shows the waveform before inversion:
The following picture shows the waveform of inversion:
Set the Channel Bandwidth Limit
The oscilloscope is set to full bandwidth and will pass the high frequency component in the
signal if the “BW Limit” was turned off.
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The oscilloscope will reject the frequency component higher than 20MHz if the “BW
Limit” was turned on.
When the “BW Limit” was turned on, a “B” sign will be displayed at the bottom of display
screen.
Filter definition:
None: without the Filter, read out the actual value directly.
Lower: with low limitation filter, the waveform will look more thin than in “None” mode.
Higher: with high limitation Filter, the waveform will look more thin than in “Lower” mode.
3.2.2 Set Math
Click “MATH” in Channel menu to set MATH channel.
The MATH Menu:
Turn On/Off: Turn On/Off the MATH Channel.
Source A/B: Set the sources of the math channel.
Operate: Set operates type of the math channel.
Volt/DIV: Set the resolution of the math channel.
Probe: Set the math channel probe attenuation.
Reset: Set the math channel vertical position to zero.
Invert: Turn on/off the invert function
The mathematic functions include addition, subtract, multiply and division for CH1 and
CH2.
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Source A/B:
Source A and Source B menu:
Operate:
Four Types:
A + B Add source A and source B
A - B Subtract source B from source A
A × B source A Multiply source B
A / B Division source A by source B
In this function, use the addition, subtraction, multiplication and division function to
operate and analyze the waveform.
Select the operate type in the Operate menu. Select source A and B. Then adjust the
vertical scale and offset to view the math channel clearly. The mathematic result can be
measured by the measure and the cursor.
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The Math Function Display:
3.3.3 Set Reference
Click “Reference” in “Channel” menu to set REF channel.
The Reference Channel Function:
Turn On/Off: Turn on/off the reference channel.
Volt/DIV: Channel the resolution of the reference channel.
Reset: Reset the reference channel vertical position to zero.
Load Reference: Load the reference waveform from the “.ref” file from your computer.
Save Reference: Save the current reference waveform to your computer as “.ref” format.
You can change the vertical scale of a waveform. The waveform display will contract or
expand relative to the reference level.
Click “Save Reference” to save the waveform to *.ref file. The saved source window
appears.
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The Reference Waveform Display Window:
Caution: If you turn on the “Reference” channel, the load file window will appear.
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3.3 Set Horizontal System
Click “Horizontal” in main menu.
3.3.1 Change Time/Div
The “Time/Div” Menu:
Select the horizontal Time/Div (scale factor) for the main or the window time base.
The Horizontal Panel
Click the blue knob can change Time/Div.
3.3.2 Change Format
Click “Format” menu.
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In the “Format” item, set the waveform display format (Y-T, X-Y and Roll).
Y -T: Shows the relative relation between vertical voltage and horizontal time.
Roll: In Roll Mode, the waveform display updates from right to left.
X -Y: Show CH1 value at X axis; CH2 value at Y axis.
In Roll mode, the waveform display rolls from right to left. No trigger or horizontal offset
control of waveforms is available during Roll Mode, and it’s only available when set to
1s/div or slower.
Caution: If the time/div bigger than 1s, the format will change to Roll mode automatically.
3.3.3 Change Horizontal Position
The “Zero” menu:
Click “Zero” to set the trigger point to the horizontal center of the screen.
Horizontal position changes the displayed waveform position, relative to the trigger point.
The user can drag
on screen to change the horizontal position.
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3.4 Set Trigger System
3.4.1 Set Edge Trigger
Click “Trigger” in main menu:
The trigger determines when the oscilloscope starts to acquire data and display a
waveform. When a trigger is set up properly, it can convert unstable displays or blank
screens into meaningful waveforms.
If the oscilloscope wants to acquire a waveform, it collects enough data so that it can draw
the waveform to the left of the trigger point. The oscilloscope continues to acquire data
while waiting for the trigger condition to occur. The oscilloscope continues to acquire
enough data so that it can draw the waveform to the right of the trigger point after it
detects a trigger.
The Edge trigger determines whether the scope finds the trigger point on the rising or the
falling edge of the signal. Select Edge trigger mode to trigger on Rising edge or Falling
edge.
Mode: Select the trigger mode.
Sweep: Set the sweep mode to Auto, Normal or Single.
Auto: Acquire waveform even no trigger occurred
Normal: Acquire waveform when trigger occurred.
Single: Acquire waveform when trigger occurred then stop.
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Source: You can use the trigger source options to select the signal that the oscilloscope
uses as a trigger. The source can be any signal connected to a channel BNC, or to the
EXT. BNC.
CH1: Select CH1 as trigger signal
CH2: Select CH2 as trigger signal
ALT: Select CH1 and CH2 as trigger signal
EXT.: Select EXT. as trigger signal
EXT./10: Select attenuated EXT./10 as trigger signal (Only Hantek6082BE)
Slope: Set the slope to Rising (+) or Falling (-).
Rising: Trigger on rising edge
Falling: Trigger on falling edge
50%: Sets the trigger level to the center of the waveform amplitude.
The user can also change the trigger setting on trigger panel in sidebar.
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3.4.2 HF Rejection
Click “HF Rejection” in “Trigger” menu:
The user can turn on “HF Rejection” to eliminate trigger higher-frequency (20M above).
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3.5 Save/Load
Click “File” in main menu to save waveform, setups and screen.
Save:
1. Save CSV
Save waveform data as a CSV file
2. Save Image
Save the software display window as a .bmp or .jpg file
3. Save Setups
Save the current oscilloscope setups to file
4. Save Waveform
Save waveform data as a TEST, WORD or EXCEL file.
Load:
1. Load CSV
Load the waveform that had saved as a CSV file
2. Load Setups
Load the instrument that had saved
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3.6 Utility Function
Click the “Menu -> Utility” to get into the “Utility” menu.
The “Utility” Functions:
FFT
Record
Pass/Fail
Factory Setup
Language
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3.6.1 Fast Fourier Transform Function
You can use the FFT mode to convert a time-domain signal into its frequency components
(spectrum). You can use the FFT mode for the following types of analysis:
To use the FFT mode, you need to click “Menu->Utility->FFT” to open the FFT setup
window.
The FFT setup window:
You can select the Source channel, Window algorithm, FFT number, and FFT Zoom
factor. It displays only one FFT spectrum at a time.
Source
Selects the channel used as the FFT source
Window:
:
Selects the FFT window type
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The windows reduce spectral leakage in the FFT spectrum.
No. of Freq Bins:
Selects the FFT number
Scale:
Selects the vertical scale units
Vertical:
Selects the vertical scale
Horizontal:
Selects the FFT zoom factor
Sets horizontal scale, If the information is more than the quantity displayed to the display
window, more information is displayed by using scroll bar.
You can click the “Start” button to start FFT math, also you can click this button to stop
FFT math.
Click “Save” button if you want to save FFT math result. You can save the data into Word
file, Excel file or Text file.
Harmonic information window shows the information of Harmonics.
Measurement information window shows the information about measurement of FFT.
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The FFT display Windows:
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3.6.2 Record and Play Back
Click “Record” in “Utility” menu.
The Record window will display. The following picture shows the Record Interface.
This function can record input waveform form CH1 or CH2. The maximum record length is
1000 frames.
Record Setup window:
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Source:
Select record source channel. (CH1 or CH2)
End Frame:
Set the number of record times. The max frames are 1000.
Time Interval:
Set the time interval of record waveform.
Record:
Record counter, it shows the record frames.
“Start” button:
Start to record frames. After you start to record waveforms, this button changes to
“Stop” button. It stops recording waveforms.
“Save” button:
Save the record setup to file.
Play back setup window
Time Interval:
Set the time interval of play back.
Start Frame:
Set the start frame of play back.
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End Frame:
Set the end frame of play back.
Current Frame:
Displays the current frame of play back. You can also change this number to watch
the waveform one by one.
Repeat:
If it was checked, the waveform will be played back repeatedly.
“Play” button:
Click this button to start playing back waveform. It can stop playing back if you
started playing back.
“Load” button:
Click this button to load a record setup.
Note: When it plays back waveform, the other channel will be turned off.
3.6.3 Pass/Fail
Click “Pass/Fail” in “Utility” menu.
The Pass/Fail window appears:
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The Pass/Fail function monitors changes of signals and outputs pass or fail signals by
comparing the input signal with the pre-created mask.
Control Setting
Source:
Select the Pass/Fail channel
Output:
Select the Pass/Fail output condition
Stop When Output:
If it was checked, the Pass/Fail will stop when output.
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Mask Setting
Hantek 6052BE/6082BE
Vertical:
Set the vertical limit range
Horizontal:
Set the horizontal limit range
“Create” button:
Click this button to create Pass/Fail area according to the mask
“Save” button:
Click this button to save the setups to file.
“Load” button:
Click this button to load the saved setups fil
e.
Information Display
Fail: Displays the fail waveform number
Pass: Displays the pass waveform number
Total: Displays the l total Pass/Fail waveform number
Operation
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Click “Start” button to start the Pass/Fail test.
Click “Stop” button to stop the Pass/Fail test.
The Pass/Fail function display:
NOTE:Pass/Fall function is unavailable in X-Y mode and Roll mode.
3.6.4 Factory Setup
Click “Factory Setup” in “Utility” menu to load default setups.
When you click the Factory Setup in Utility menu, the oscilloscope displays the CH1
and CH2 waveforms and removes all other waveforms.
The oscilloscope set up for normal operation when it is shipped from the factory and can
be recalled at anytime by user.
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The Factory Setup function does not reset the following settings:
Language option
Date and time
3.6.5 Language
Click “Language” in “Utility” menu.
There are four languages in “Language” menu. The default language is English.
3.7 Measure Signal
3.7.1 Cursor
Click “Cursor” in main menu.
This method allows you to take measurements by moving the cursors.
1. Source
The user can set the source to CH1, CH2, FFT and MATH. But the FFT source can only
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use Trace type.
When you use cursors, be sure to set the Source to the waveform on the display that you
want to measure.
2. Type
There are four types of cursors: Cross, Trace, Vertical and Horizontal.
1) Cross
The Cross cursors appear as cross lines on the display and measure the vertical and
horizontal parameters.
The Cross cursor display window:
The Cross measure result displays on status bar
2) Trace
The Trace cursors appear as vertical lines on the display and measure the waveform
amplitude at the point the waveform crosses the cursor.
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The Trace cursor display window:
The Trace cursor measure result display on status bar
3) Vertical
The Vertical cursors appear as vertical lines on the display and measure the vertical
parameters.
The Vertical cursor display window:
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The Vertical cursor measure result display on status bar:
4) Horizontal
The Horizontal cursors appear as horizontal lines on the display and measure the
horizontal parameters.
The Horizontal cursor display window:
The Horizontal cursor measure result display on status bar:
3.7.2 Measure Menu
Click “Measure” in main menu.
The oscilloscope provides 20 parametric auto measurements (12 voltage and 8 time
measurements).
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1. Source
The user can use the “Source” menu to select a measure source.
2. Vertical
Maximum: Voltage of the absolute maximum level, measured over the entire waveform
Minimum: Voltage of the absolute minimum level, measured over the entire waveform
Peak to Peak: Peak- to-peak=Max-Min, measured over the entire waveform
Top: Voltage of the statistical maximum level, Measured over the entire waveform
Base: Voltage of the statistical maximum level, measured over the entire waveform
Middle: Voltage of the 50%level from base to top
RMS:T he Root Mean Square voltage over the entire waveform
Amplitude: Amp=Base-Top, measured over the entire waveform
Mean: The arithmetic mean over the entire waveform
Cycle Mean: The arithmetic mean over the first cycle in the waveform
Preshoot: Positive Overshoot =(Max-Top)/Amp*100% , measured over the entire
waveform
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3. Horizontal
Period: Time to take for the signal cycle to complete in the waveform
Frequency: Reciprocal of the period of the first cycle in the waveform
Rise Time: Time taken from lower threshold to upper threshold
Fall Time: Time taken from upper threshold to lower threshold
+Duty Cycle: Positive Duty Cycle = (Positive Pulse Width)/Period x 100%,Measured of
+Pulse Width: Measured of the first positive pulse in the waveform. The time between the
50% amplitude points
-Pulse Width: Measured of the first negative pulse in the waveform. The time between the
50% amplitude points
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4. Clear Measure
Clear all measure items on display screen.
The Measure Display Window:
Caution: The results of the automatic measurements will be displayed on the bottom of
the screen. Maximum 8 results could be displayed at the same time. When there is no
room, the next new measurement result will make the previous results moving left, out of
screen.
3.8 The Display System
3.8.1 Display Type
Click “Type” in “Display” menu.
The following figure shows the parameters setting.
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If the Vectors type mode is selected, the waveform will be displayed as following figure.
If the Dots type mode is selected, the waveform will be displayed as following figure.
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3.8.2 Display Grid
Click “Display” in main menu.
The grid shows:
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Without the grid shows:
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3.8.3 Intensity
Click “Display->Intensity” In main menu
The following figure shows the intensity dialog. It shows the display parameters setting.
You can change the grid and waveform color intensity in this dialog.
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3.8.4 Waveform Color
Click “Display->Waveform Color” in main menu.
The following figure shows the waveform color dialog. It shows the waveform color setting.
If you click the color rectangle, the color dialog will be showed.
The waveform color was changed:
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3.9 Zoom In/Out and Drag Waveforms
The software will stop updating waveform after the user clicked “Stop” button, The user
can change the waveform display 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.
Zoom In/Out
The user can click “Zoom In/Out” in Acquire menu, then left or right click the mouse
button on display screen to Zoom in/out the waveform. Also the user can change
Time/Div in Horizontal menu or in Horizontal panel to zoom in/out the waveform.
Drag
The user can modify the waveform position after clicked “Drag” in “Acquire” menu
following the following steps.
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3.10 Interpolation
At the time 40ns/div or faster, user can use the different interpolation mode to get
waveforms of different smoothness.
The Step Interpolation:
The Linear Interpolation:
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The Sin(x)/x Interpolation:
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Caution: The default interpolation mode is Sin(x)/x.
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3.11 Acquisition Modes
Acquisition
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.
There are two acquisition modes: Normal and Average.
Normal: In this acquisition mode, the oscilloscope samples the signal in evenly spaced
intervals to construct waveform.
Average: In this acquisition mode the oscilloscope acquires several waveforms, averages
them, and display the resulting waveform. You can use this mode to reduce random noise.
3.12 Print And Print Preview
Click “Print” in “File” menu to set the printer to print the current waveform.
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1. Click “print” in “File” menu to set the current waveform.
2. Click the “Print Preview” in “File” menu to get into the Preview windows.
Click the “Print Preview” in “File” menu to get into the Preview window.
In “Print Preview” window, use the “Zoom In” button and the “Zoom Out” button to
change the size of the waveform graph. Click the “Close” button to turn this window off
and click the “Print” button to print the report.
The Print report:
Hantek 6052BE/6082BE
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Chapter 4 Application Example
Sample Measurement
Pass/Fail Test
Capturing a Single-Shot Signal
The Application of the X-Y
Taking Cursor Measurement
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4.1 Simple Measurement
To acquire and display a signal, please do the steps as follows:
1. Connect signal to CH1 by using probe
2. Click the button on toolbar or “Acquire” -> “Auto Setup” on menu.
To measure the frequency and “Vpp”, you can do these steps as follows:
1. Click the “Measure”-> “Horizontal”-> “Frequency” button, the frequency of the
signal display on the bottom of the waveform interface.
2. Click the “Measure”-> “Vertical”-> “Peak-to-Peak” button, the “Vpp” of the signal
will also display on the bottom of the waveform interface.
3. To clear the measurement on the waveform interface, click the “Measure”-> “Clear
Measure” button
.
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4.2 Pass/Fail Test
The Pass/Fail function monitors changes of signals and outputs pass or fail signals by
comparing the input signal with the pre-created mask.
Control Setting:
Source:
Select the Pass/Fail channel.
Output:
Select the Pass/Fail output condition.
Stop When Output:
Mask Setting
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Vertical:
Set the vertical limit range.
Horizontal:
Set the horizontal limit range.
“Create” button:
Click this button to create Pass/Fail area according to the mask.
“Save” button:
Click this button to save the setups to file.
“Load” button:
Click this button to load the saved setups file.
Information Display:
Fail: Displays the fail waveform number.
Pass: Displays the pass waveform number.
Total: Displays the total Pass/Fail waveform number.
Operation:
Click “Start” button to start the Pass/Fail test.
Click “Stop” button to start the Pass/Fail test.
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Caution: Pass/Fail function unavailable in X-Y mode and Roll mode.
4.3 Capturing a Single-Shot Signal
To capture a single event, it needs to gather some pre-test knowledge of the signal in
order to set up the trigger level and slope correctly. For example, if the event is derived
from 3.3V COMS logic, a trigger level of 1.2 or higher Volts should work on a rising edge.
Do these steps as follows:
1. Set the probe and the channel attenuations to X 10.
2. Set up the trigger in the Trigger Menu, or in the Trigger Setting window.
(1) Adjust the Trigger Mode to Edge.
(2) Set the Trigger Sweep to Single.
(3) Set the Trigger Source to CH1.
(4) Set the Trigger Slope to “+” which means you select the rising edge.
(5) Adjust the Volts/Div and the time base in a proper range for the signal.
(6) Drag the trigger level sign on the waveform display screen to proper position. It ally
higher a little above the normal level.
(7) Click START button to start capturing. When the trigger conditions are met, data
appears on the display representing the data points that the oscilloscope obtained with
one acquisition.
This function helps to capture the signal occurrence easily, such as the noise with large
amplitude; set the trigger level higher a little above the normal level and press and wait.
When noise occurs, the instrument will record the waveform before and after the trigger.
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4.4 The Application of the X-Y Operation
X-Y Plot acts to analyze correlation of data of two channels. Lissajous diagram is
displayed in the screen when you use X-Y Plot, which enables to compare frequencies,
amplitudes and phases of counterpart waveform against the reference waveform. This
makes it possible to compare and analyze frequency, amplitude and phase between input
and output.
Do these steps as follows:
1. Set the probe attenuation to “x10”. Set the switch to “x10” on the probes.
2. Connect the CH1 probe to the input of the circuit, and connect the CH2 probe to the
output of the circuit.
3. Click
4. Adjust the vertical scale and offset to display approximately the same amplitude
signals on each channel.
5. Select X-Y format at Horizontal window. The oscilloscope will displays a Lissajous
pattern representing the input and the output characteristics of the circuit.
6. Adjust the scale and offset of the horizontal and vertical to a desirable waveform
display. The following picture shows a typical example.
7. Apply the Ellipse Method to observe the phase difference between the two channels.
Signal in X-Y Format:
button.
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Instruction of the Ellipse Method:
Sinθ = A/B or C/D, where θ = phase shift (in degrees) between the two signals.
From the formula above:
θ = ±arcsine (A/B) or ±arcsine (C/D)θ must be in the range of (0~π/2) or (3π/2~2π) if the main axis of the ellipse is between I
and III quadrant .If the main axis is at II and IV quadrant, θ must be in the range of (π/2~π)
or (π~3π/2).
4.5 Taking Cursor Measurements
Use cursors to make time and amplitude measurements on a waveform quickly.
Measure the Frequency or Time of the Sine Waveform
Do these steps:
1. Click “Cursor”-> “Source”, select CH1 (select CH2 if you want measure CH2).
2. Click “Cursor”-> “Type”, select Vertical.
3. Push left mouse button, and the vertical lines appear.
4. Drag the mouse button to the point you want to measure.
5. Release the left mouse button, the frequency difference and time difference will be
shown at the status bar.
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Measure the Frequency and Time:
Read the details showing in the status bar.
Measure the Amplitude of the First Waveform Peak of the Waveform
Do these steps:
1. Click “Cursor”-> “Source” select CH1 (select CH2 if you want measure CH2).
2. Click “Cursor”-> “Type”, select Horizontal.
3. Push left mouse button, and the Horizontal lines appear.
4. Drag the mouse button to the point you want to measure.
5. Release the left mouse button, the voltage difference will be shown at the status bar.
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Measure the Amplitude:
Read the details showing in the status bar.
Trace the Amplitude of a fixed position on X-axis in a Waveform
Do these steps:
1. Click “Cursor->Source”, select CH1 (select CH2 if you want trace CH2).
2. Click “Cursor->Type”, select Trace.
3. Click the cursor at the position that you want traced of the wave in the waveform
window.
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Trace the Amplitude:
Read the details showing in the status bar.
Caution: Click “Cursor->Type” to select “Cross”, you can measure time and amplitude
at one time.
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Chapter 5 Appendix
Appendix A: Specifications
Appendix B: General Maintenance
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Appendix A: Specifications
Specifications Table:
Input
Real-time sampling:
Max. sample rate
Channels 2
Bandwidth
Vertical resolution
Gain range 10mV ~5V/div @ x1 p
150MS/s using one channel(Hantek6
250MS/s using one channel(Hantek6082BE)
50 MHz analog bandwidth(Ha
80MHz analog bandwidth(Hantek6082BE)
8 bits/chann
500mV, 1V, 2V, 5V/div, 1,2,5 sequence)
100mV ~ 50V/div @ x10 probe
1V ~ 500V/div @ x100 probe
10V ~ 5KV/div @ x1000 probe
el
Hantek 60
052BE)
ntek6052BE)
robe(10mV, 20mV, 50mV, 100mV, 200mV,
52BE/6082BE
e 8
Rang
Offset level +/-4 divisions
Couplin
Offset increments 0.02 div
Impedance 1M
DC accuracy +/-3%
Input protection 35Vpk (DC + peak AC < 10 kHz, without external attenuation)