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DSO Four-Channel Series
Digital Storage Oscilloscopes
User Manual
General Warranty
We warrants that the product will be free from defects in materials and workmanship for a period of 3 years from the date of purchase of the product by the original purchaser from our company. The warranty period for accessories such as probes, battery is 12 months.
This warranty only applies to the original purchaser and is not transferable to a third party.
If the product proves defective during the warranty period, we will either repair the defective product without charge for parts and labour, or will provide a replacement in exchange for the defective product. Parts, modules and replacement products used by our company for warranty work may be new or reconditioned like new. All replaced parts, modules and products become the property of our company.
In order to obtain service under this warranty, the customer must notify our company of the defect before the expiration of the warranty period. Customer shall be responsible for packaging and shipping the defective product to the designated service centre, a copy of the customers proof of purchase is also required.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. We shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than our company representatives to install, repair or service the product; b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction caused by the use of not our supplies; or d) to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product.
Please contact the nearest Sales and Service Offices for services or a complete copy of the warranty statement.
Excepting the after-sales services provided in this summary or the applicable warranty statements, we will not offer any guarantee for maintenance definitely declared or hinted, including but not limited to the implied guarantee for marketability and special-purpose acceptability. We should not take any responsibilities for any indirect, special or consequent damages.
Table of Contents
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1.General Safety Requirements
1.
General Safety Requirements
Before use, please read the following safety precautions to avoid any possible bodily injury and to prevent this product or any other connected products from damage. In order to avoid any contingent danger, ensure this product is only used within the range specified.
Only the qualified technicians can implement the maintenance.
To avoid Fire or Personal Injury:
Connect the probe correctly.
The grounding end of the probe corresponds to the grounding phase. Please don't connect the grounding end to the positive phase.
Use Proper Power Cord. Use only the power cord supplied with the product and certified to use in your country.
Connect or Disconnect Correctly. When the probe or test lead is connected to a voltage source, please do not connect and disconnect the probe or test lead at random.
Product Grounded. This instrument is grounded through the power cord grounding conductor. To avoid electric shock, the grounding conductor must be grounded. The product must be grounded properly before any connection with its input or output terminal.
When powered by AC power, it is not allowed to measure AC power source directly, because the testing ground and power cord ground conductor are connected together, otherwise, it will cause short circuit.
When powered by battery, the product must ground connection. To avoid electric shock, there must be a ground wire connect between ground and the ground port
(on the back of product panel).
Check all Terminal Ratings. To avoid fire or shock hazard, check all ratings and markers of this product. Refer to the user's manual for more information about ratings before connecting to the instrument.
Do not operate without covers . Do not operate the instrument with covers or panels removed.
Use Proper Fuse. Use only the specified type and rating fuse for this instrument.
Avoid exposed circuit . Do not touch exposed junctions and components when the instrument is powered.
Do not operate if in any doubt. If you suspect damage occurs to the instrument, have it inspected by qualified service personnel before further operations.
Use your Oscilloscope in a well-ventilated area. Make sure the instrument installed with proper ventilation, refer to the user manual for more details.
Do not operate in wet conditions.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
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2.Safety Terms and Symbols
2.
Safety Terms and Symbols
Safety Terms
Terms in this manual. The following terms may appear in this manual:
Warning: Warning indicates the conditions or practices that could result in injury or loss of life.
Caution: Caution indicates the conditions or practices that could result in damage to this product or other property.
Terms on the product. The following terms may appear on this product:
Danger: It indicates an injury or hazard may immediately happen.
Warning: It indicates an injury or hazard may be accessible potentially.
Caution: It indicates a potential damage to the instrument or other property might occur.
Safety Symbols
Symbols on the product . The following symbol may appear on the product:
Hazardous Voltage Refer to Manual
Protective Earth Terminal Chassis Ground
Test Ground
To avoid body damage and prevent product and connected equipment damage, carefully read the following safety information before using the test tool. This product can only be used in the specified applications.
Warning
:
The four channels of the oscilloscope are not electrically isolated. The channels should adopt a common ground during measuring. To prevent short circuits, the 2 probe grounds must not be connected to 2 different non-isolated DC levels.
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2.Safety Terms and Symbols
The diagram of the oscilloscope ground wire connection:
Probe Oscilloscope Electrical Outlet
Signal Input
Power Cord
Ground Clip
The diagram of the ground wire connection when the battery-powered oscilloscope is connected to the AC-powered PC through the ports:
Probe
Oscilloscope
(Battery-power)
PC Electrical Outlet
Signal Input
USB/VGA/COM/
LAN Cable
Ground Clip
It is not allowed to measure AC power when the oscilloscope is AC powered, or when the battery-powered oscilloscope is connected to the AC-powered PC through the ports.
Warning:
To avoid fire or electrical shock, when the oscilloscope input signal connected is more than 42V peak (30Vrms) or on circuits of more than
4800VA, please take note of below items:
Only use accessory insulated voltage probes and test lead.
Check the accessories such as probe before use and replace it if there are any damages.
Remove probes, test leads and other accessories immediately after use.
Remove USB cable which connects oscilloscope and computer.
Do not apply input voltages above the rating of the instrument because the probe tip voltage will directly transmit to the oscilloscope. Use with caution when the probe is set as 1:1.
Do not use exposed metal BNC or banana plug connectors.
Do not insert metal objects into connectors.
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3.Junior User Guidebook
3.
Junior User Guidebook
This chapter deals with the following topics mainly:
Introduction to the structure of the oscilloscope
Introduction to the user interface
How to implement the general inspection
How to implement the function inspection
How to make a probe compensation
How to set the probe attenuation coefficient
How to use the probe safely
How to implement an self-calibration
Introduction to the vertical system
Introduction to the horizontal system
Introduction to the trigger system
Touchscreen Controls
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3.Junior User Guidebook
Introduction to the Structure of the Oscilloscope
This chapter makes a simple description of the operation and function of the front panel of the oscilloscope, enabling you to be familiar with the use of the oscilloscope in the shortest time.
Front Panel
The front panel has knobs and function buttons. The 5 buttons in the column on the right side of the display screen or in the row under the display screen are menu selection buttons, through which, you can set the different options for the current menu. The other buttons are function buttons, through which, you can enter different function menus or obtain a specific function application directly.
1 2 3
10 9 8 7 6 5 4
Figure 3-1 Front panel
1.
Display area
2.
Select the right menu item
3.
Control (button and knob) area
4.
Probe Compensation: Measurement signal (
≈ 3.3V/1kHz) output.
5.
Input connectors of four channels
6.
Remove the left and right menu
7.
Select the bottom menu item
8.
Copy button: You can save the waveform by just pressing this button in any user
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3.Junior User Guidebook interface.
9.
USB Host port: It is used to transfer data when external USB equipment connects to the oscilloscope regarded as "host device".
For example: Saving the waveform to
USB flash disk needs to use this port.
10.
Power on/off
Rear Panel
1 2
10
9
3
4
5
8 7 6
Figure 3-2 Rear Panel
1.
Handle
2.
Air vents
3.
AC power input jack
4.
Fuse
5.
Foot stool : Adjust the tilt angle of the oscilloscope.
6.
LAN port : the network port which can be used to connect with PC.
7.
USB Device port: It is used to transfer data when external USB equipment connects to the oscilloscope regarded as "slave device". For example: to use this port when connect PC to the oscilloscope by USB.
8.
Lock Hole : You can lock the oscilloscope to a fixed location using the security lock
(please buy it yourself) to secure the oscilloscope.
9.
Trig Out(P/F) port: Trigger signal output or Pass/Fail output, also can be used as the port of CH2 Output of optional dual-channel waveform generator. The output type can be set on the menu (Utility menu → Output → Output).
10.
Out 1 port: Output (single-channel) or CH1 Output (dual-channel) of optional waveform generator.
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Control Area
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7
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2
3
5 4
Figure 3-3 Control Area Overview
1.
Function button area : Total 11 buttons
2.
Waveform generator controls (optional) or
DAQ: This function is not available.
P/F:
Pass/Fail (see " Pass/Fail " on P74)
W.REC:
Waveform Record (see " How to Record/Playback Waveforms " on P64)
3.
Trigger control area with 2 buttons and 1 knob.
The Trigger Level knob is to adjust trigger voltage. Other 2 buttons refer to trigger system setting.
4.
Horizontal control area with 1 button and 2 knobs.
"HOR" button refer to horizontal system setting menu, "Horizontal Position" knob control trigger position, "Horizontal Scale" control time base.
5.
Vertical control area with 5 buttons and 2 knobs.
CH1 - CH4 buttons correspond to setting menu in CH1 - CH4. "Math" button provides access to math waveform functions (+, -, ×, /, FFT, user function, digital filter). The "Vertical Position" knob control the vertical position of current channel, and the "Scale" knob control voltage scale of current channel.
6.
Default : Call out the factory settings.
Print : Print an image of what appears on the instrument screen.
Decode : Turn on/off Decode function.
Snap: Shortcut button for measurement snapshot.
7.
Direction key: Move the cursor of the focused parameter.
8.
M knob (Multipurpose knob): when a symbol appears on the menu, it indicates you can turn the M knob to select the menu or set the value. You can push it to close
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the menu on the left and right.
3.Junior User Guidebook
User Interface Introduction
1 2 3 4 5 6 7 5 8 9 10 11
30
12
13
14
15 29
28
27
26
25
24
16
17
18
19
20
23 22 21
Figure 3-4 Illustrative Drawing of Display Interfaces
1.
Waveform Display Area.
2.
Run/Stop (touchable) (see " How to Use Executive Buttons " on P87)
3.
The state of trigger, including:
Auto: Automatic mode and acquire waveform without triggering.
Trig: Trigger detected and acquire waveform.
Ready: Pre-triggered data captured and ready for a trigger.
Scan: Capture and display the waveform continuously.
Stop: Data acquisition stopped.
4.
Click to auto set.
5.
The two blue dotted lines indicates the vertical position of cursor measurement.
6.
The pointer indicates the trigger position in the record length.
7.
The T pointer indicates the horizontal position for the trigger.
8.
It shows present triggering value and displays the site of present window in internal memory.
9.
Touchable icon is to enable ( ) or disable ( ) the touchscreen controls.
10.
It shows setting time (see " Config " on P73).
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3.Junior User Guidebook
11.
It indicates that there is a USB disk connecting with the oscilloscope.
12.
The waveform of CH1.
13.
The pointer shows the trigger level position of the source in trigger menu.
14.
The two blue dotted lines indicate the horizontal position of cursor measurement.
15.
The waveform of CH2.
16.
The waveform of CH3.
17.
The waveform of CH4.
18.
The frequency of the trigger signal.
19.
The icon shows the selected trigger type, e.g. represents triggering on the rising edge for an Edge trigger. The reading shows the trigger level value of the corresponding channel.
20.
Click to show/hide the touchable shortcut menu.
21.
It indicates the measured type and value of the corresponding channel. " T " means period, " F " means frequency, " V " means the average value, " Vp " the peak-peak value, " Vr " the root-mean-square value, " Ma " the maximum amplitude value,
" Mi " the minimum amplitude value, " Vt " the Voltage value of the waveform's flat top value, " Vb " the Voltage value of the waveform's flat base, " Va " the amplitude value, " Os " the overshoot value, " Ps " the Preshoot value, " RT " the rise time value, " FT " the fall time value, " PW " the +width value, " NW " the -Width value, " +D " the +Duty value, " -D " the -Duty value, " PD " the Delay
A->B value, " ND " the Delay A->B value, " TR " the Cycle RMS, " CR " the Cursor
RMS, " WP " the Screen Duty, " RP " the Phase
A->B
, " FP " the Phase
A->B
,
" +PC " the +Pulse count, " -PC " the - Pulse count, " +E " the Rise edge count, " -E " the Fall edge count, " AR " the Area, " CA " the Cycle area.
22.
The readings show the record length.
23.
The readings show current sample rate.
24.
The readings indicate the corresponding Voltage Division of the channels.
"BW" indicates bandwidth limit.
The icon shows the coupling mode of the channel.
"—" indicates direct current coupling
" ～ " indicates AC coupling
" " indicates GND coupling
25.
The reading shows the setting of main time base.
26.
The green pointer indicates the grounding datum point (zero point position) of the waveform of the CH1 channel.
27.
The orange pointer indicates the grounding datum point (zero point position) of the waveform of the CH1 channel.
28.
It is cursor measure window, showing the absolute values and the readings of the cursors.
29.
The blue pointer indicates the grounding datum point (zero point position) of the waveform of the CH1 channel.
30.
The yellow pointer indicates the grounding datum point (zero point position) of
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3.Junior User Guidebook the waveform of the CH1 channel.
How to Implement the General Inspection
After you get a new oscilloscope, it is recommended that you should make a check on the instrument according to the following steps:
1. Check whether there is any damage caused by transportation.
If it is found that the packaging carton or the foamed plastic protection cushion has suffered serious damage, do not throw it away first till the complete device and its accessories succeed in the electrical and mechanical property tests.
2. Check the Accessories
The supplied accessories have been already described in the " Appendix A: Enclosure " of
this Manual. You can check whether there is any loss of accessories with reference to this description. If it is found that there is any accessory lost or damaged, please get in touch with our distributor responsible for this service or our local offices.
3. Check the Complete Instrument
If it is found that there is damage to the appearance of the instrument, or the instrument can not work normally, or fails in the performance test, please get in touch with our distributor responsible for this business or our local offices. If there is damage to the instrument caused by the transportation, please keep the package. With the transportation department or our distributor responsible for this business informed about it, a repairing or replacement of the instrument will be arranged by us.
How to Implement the Function Inspection
Make a fast function check to verify the normal operation of the instrument, according to the following steps:
1. Connect the power cord to a power source. Long press the bottom left of the instrument. button on the
The instrument carries out all self-check items and shows the Boot Logo. Push the
Utility button, select Function in the bottom menu. Select Adjust in the left menu, select Default in the bottom menu. The default attenuation coefficient set value of the probe on the menu is 10X.
2. Set the Switch in the Oscilloscope Probe as 10X and Connect the Oscilloscope with CH1 Channel.
Align the slot in the probe with the plug in the CH1 connector BNC, and then tighten the probe with rotating it to the right side.
Connect the probe tip and the ground clamp to the connector of the probe compensator.
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3.
Push the Autoset Button on the front panel.
The square wave of 1 KHz frequency and 3.3V peak-peak value will be displayed in
several seconds (see Figure 3-5 ).
Figure 3-5 Auto set
Check CH2, CH3 and CH4 by repeating Step 2 and Step 3.
How to Implement the Probe Compensation
When connect the probe with any input channel for the first time, make this adjustment to match the probe with the input channel. The probe which is not compensated or presents a compensation deviation will result in the measuring error or mistake. For adjusting the probe compensation, please carry out the following steps:
1.
Set the attenuation coefficient of the probe on the menu as 10X and that of the switch in the probe as 10X
ensure that it keeps in close touch with the probe. Connect the probe tip with the signal connector of the probe compensator and connect the reference wire clamp with the ground wire connector of the probe connector, and then push the
Autoset button on the front panel.
2.
Check the displayed waveforms and regulate the probe till a correct
compensation is achieved (see Figure 3-6 and Figure 3-7 ).
Overcompensated Compensated correctly Under compensated
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3.Junior User Guidebook
Figure 3-6 Displayed Waveforms of the Probe Compensation
3.
Repeat the steps mentioned if needed.
Figure 3-7 Adjust Probe
How to Set the Probe Attenuation Coefficient
The probe has several attenuation coefficients, which will influence the vertical scale factor of the oscilloscope.
To change or check the probe attenuation coefficient on the menu of oscilloscope:
(1) Push the function menu button of the used channels ( CH1 - CH4 button).
(2) Select Probe in the bottom menu; select Attenu in the right menu, turn the M knob to select the proper value corresponding to the probe.
This setting will be valid all the time before it is changed again.
Caution:
The default attenuation coefficient of the probe on the instrument is preset to
10X.
Make sure that the set value of the attenuation switch in the probe is the same as the menu selection of the probe attenuation coefficient in the oscilloscope.
The set values of the probe switch are 1X and 10X (see Figure 3-8 ).
Figure 3-8 Attenuation Switch
Caution:
When the attenuation switch is set to 1X, the probe will limit the bandwidth of the oscilloscope in 5MHz. To use the full bandwidth of the oscilloscope, the switch must be set to 10X.
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Identify the Probe Attenuation Coefficient Automatically
The oscilloscope can identify the probe attenuation coefficient of the 100:1
(impedance 5K ± 20%) or 10:1 (impedance 10K ± 20%) probe with the identifying pin. When you attach the probe, the oscilloscope set the attenuation automatically on the oscilloscope vertical menu for the channel to match the probe.
For example, if you attach a 10:1 probe with the identifying pin, the screen will prompt "The probe attenuation factor is X10", and set the attenuation to 10X automatically on the oscilloscope vertical menu for the channel.
How to Use the Probe Safely
The safety guard ring around the probe body protects your finger against any electric
Figure 3-9 Finger Guard
Warning:
To avoid electric shock, always keep your finger behind the safety guard ring of the probe during the operation.
To protect you from suffering from the electric shock, do not touch any metal part of the probe tip when it is connected to the power supply.
Before making any measurements, always connect the probe to the instrument and connect the ground terminal to the earth.
How to Implement Self-calibration
The self-calibration application can make the oscilloscope reach the optimum condition rapidly to obtain the most accurate measurement value. You can carry out this application program at any time. This program must be executed whenever the change of ambient temperature is 5 ℃ or over.
Before performing a self-calibration, disconnect all probes or wires from the input connector. Push the Utility button, select Function in the bottom menu, select Adjust . in the left menu, select Self Cal in the bottom menu; run the program after everything is ready.
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3.Junior User Guidebook
Introduction to the Vertical System
As shown in Figure 3-10 , there are a few of buttons and knobs in
Vertical Controls .
The 4 channels are marked by different colors which are also used to mark both the corresponding waveforms on the screen and the channel input connectors. Press one of the channel buttons to open the corresponding channel menu, and press again to turn off the channel.
Press the Math button to display the math menu in the bottom. The pink M waveform appears on the screen. Press again to turn off the math waveform.
The 4 channels use the same Vertical Position and Vertical Scale knobs. If you want to set the vertical scale and vertical position of a channel, please press CH1, CH2,
CH3 or CH4 at first to select the desired channel. Then turn the Vertical Position and
Vertical Scale knobs to set the values.
Figure 3-10 Vertical Control Zone
The following practices will gradually direct you to be familiar with the using of the vertical setting.
1.
Press CH1, CH2, CH3 or CH4 to select the desired channel.
2.
Use the Vertical Position knob to show the selected channel waveform in the center of the waveform window. The Vertical Position knob functions the regulating of the vertical display position of the selected channel waveform. Thus, when the Vertical
Position knob is rotated, the pointer of the earth datum point of the selected channel is directed to move up and down following the waveform, and the position message at the center of the screen would change accordingly.
Measuring Skill
If the channel is under the DC coupling mode, you can rapidly measure the DC component of the signal through the observation of the difference between the wave form and the signal ground.
If the channel is under the AC mode, the DC component would be filtered out. This mode helps you display the AC component of the signal with a higher sensitivity.
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3.Junior User Guidebook
Vertical offset back to 0 shortcut key
Turn the Vertical Position knob to change the vertical display position of the selected channel, and push the position knob to set the vertical display position back to 0 as a shortcut key, this is especially helpful when the trace position is far out of the screen and want it to get back to the screen center immediately.
3.
Change the Vertical Setting and Observe the Consequent State Information Change.
With the information displayed in the status bar at the bottom of the waveform window, you can determine any changes in the channel vertical scale factor.
Turn the Vertical Scale knob and change the "Vertical Scale Factor (Voltage
Division)" of the selected channel, it can be found that the scale factor of the selected channel in the status bar has been changed accordingly.
Introduction to the Horizontal System
Shown as Figure 3-11 , there are a button and two knobs in the
Horizontal Controls .
The following practices will gradually direct you to be familiar with the setting of horizontal time base.
Figure 3-11 Horizontal Control Zone
1.
Turn the Horizontal Scale knob to change the horizontal time base setting and observe the consequent status information change. Turn the Horizontal Scale knob to change the horizontal time base, and it can be found that the Horizontal
Time Base displayed in the status bar changes accordingly.
2.
Use the Horizontal Position knob to adjust the horizontal position of the signal in the waveform window. The Horizontal Position knob is used to control the triggering displacement of the signal or for other special applications. If it is applied to triggering the displacement, it can be observed that the waveform moves horizontally with the knob when you rotate the Horizontal Position knob.
Triggering displacement back to 0 shortcut key
Turn the Horizontal Position knob to change the horizontal position of channel
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3.Junior User Guidebook and push the Horizontal Position knob to set the triggering displacement back to 0 as a shortcut key.
3.
Push the Horizontal HOR button to switch between the normal mode and the wave zoom mode.
Introduction to the Trigger System
As shown in Figure 3-12 , there are one knob and three buttons make up
Trigger
Controls . The following practices will direct you to be familiar with the setting of the trigger system gradually.
Figure 3-12 Trigger Control Zone
1.
Push the Trigger Menu button and call out the trigger menu. With the operations of the menu selection buttons, the trigger setting can be changed.
2.
Use the Trigger Level knob to change the trigger level setting.
By turning the Trigger Level knob, the trigger indicator in the screen will move up and down. With the movement of the trigger indicator, it can be observed that the trigger level value displayed in the screen changes accordingly.
Note : Turning the Trigger Level knob can change trigger level value and it is also the hotkey to set trigger level as the vertical mid point values of the amplitude of the trigger signal.
3.
Push the Force button to force a trigger signal, which is mainly applied to the
"Normal" and "Single" trigger modes.
Touchscreen Controls
You can control the oscilloscope by different gestures. The touchable icon at the top right of the screen is used to enable (
) or disable ( ) the touchscreen controls.
The instruction of touchscreen controls is as below.
Run/Stop : Click the or on the left top of the display area to run or stop the waveform sampling.
Autoset: Click the on the left top of the display area to auto set.
Select a menu item: Touch the menu items in the bottom menu, or in the right menu,
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3.Junior User Guidebook or in the left menu.
Switch menu items: If there are options that can be switched on the menu, you can repeatedly touch the area of the menu item to switch, or push the corresponding button to switch. See figure below:
Press repeatedly to switch the options
Adjust value on the menu item:
Click to increase the value of cursor position
Click to show the soft keyboard
Move the cursor
Click to decrease the value of cursor position
Scroll the list: If there is a scroll bar in the left menu or in the file system window, you can swipe up and down to scroll the list.
Touchable menu pane: Click the icon on the right bottom of the display area, a shortcut menu will be shown. Click to enter the corresponding function menu.
Turn off the function
Enter the function menu
Next page
Set the channel status: Click the channel on the left bottom of the display area, you can turn on, select or turn off the channel. You can also touch the channel pointer on the left side of the display area to make it in selected state.
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Channel is on and selected
3.Junior User Guidebook
Channel pointer
Selected Unselected
Channel is off Channel is on
Set the horizontal and vertical position
Click in the area as shown in the figure below, the P icon will appear. Click anywhere outside the icon to hide it.
Note: Swipe up/down or left/right in this area, you can make the icon appear and control it.
When the P icon appears, in the full screen, swipe left/right to control the horizontal position, swipe up/down to control the vertical position of the selected channel.
Control the horizontal position Control the vertical position of the selected channel
Click the P icon to fine-turn, long-press to adjust continuously.
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3.Junior User Guidebook
Set the trigger level
Click in the area as shown in the figure below, the L icon will appear. Click anywhere outside the icon to hide it.
Note: Swipe up/down in this area, you can make the icon appear and control it.
When the L icon appears, in the full screen, swipe up/down to control the trigger level of the source in the trigger menu.
Click the L icon to fine-turn, long-press to adjust continuously.
Control the trigger level of the source in the trigger menu
Set the time base and the voltage division
Click in the area as shown in the figure below, the M and V icons will appear. Click anywhere outside the icon to hide it.
Note: Swipe up/down or left/right in this area, you can make the icon appear and control it.
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When the M and V icons appear, in the full screen, swipe left/right to change the time base, swipe up/down to change the voltage division of the selected channel.
Click the icons to fine-turn, long-press to adjust continuously.
Control the time base
Control the voltage division
In the full screen, pinch and spread horizontally to change the time base; pinch and spread vertically to change the voltage division of the selected channel.
Measure with Cursors
Click nearby a cursor line as shown in the figure below, the line will be selected, and the C icon will appear. Click anywhere outside the icon to hide it.
Note: Swipe in this area, you can make the icon appear and control it.
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3.Junior User Guidebook
When the C icon appears, in the full screen, swipe left/right to move the selected line.
Click the direction buttons of the C icon to fine-turn, long-press to move continuously.
Click the center "ab" button to select a, b, or a&b.
Control the vertical cursor line
Switch to select the lines
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4.Advanced User Guidebook
4.
Advanced User Guidebook
Up till now, you have already been familiar with the basic operations of the function areas, buttons and knobs in the front panel of the oscilloscope. Based the introduction of the previous Chapter, the user should have an initial knowledge of the determination of the change of the oscilloscope setting through observing the status bar. If you have not been familiar with the above-mentioned operations and methods yet, we advise you to read the section of Chapter 3 "Junior User Guidebook".
This chapter will deal with the following topics mainly:
How to Set the Vertical System
How to Set the Horizontal System
How to Set the Trigger/Decoding System
How to Implement the Sampling Setup
How to Set the Display System
How to Save and Recall Waveform
How to Record/Playback Waveforms
How to Clone and Recall a waveform
How to Implement the Auxiliary System Function Setting
How to Update your Instrument Firmware
How to Measure Automatically
How to Measure with Cursors
How to Use Autoscale
How to Use Built-in Help
How to Use Executive Buttons
How to Print the Screen Image
It is recommended that you read this chapter carefully to get acquainted the various measurement functions and other operation methods of the oscilloscope.
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4.Advanced User Guidebook
How to Set the Vertical System
The VERTICAL CONTROLS includes three menu buttons such as CH1 , CH2 , CH3 ,
CH4 and Math , and two knobs such as Vertical Position , Vertical Scale .
Setting of CH1 - CH4
Each channel has an independent vertical menu and each item is set respectively based on the channel.
To turn waveforms on or off (channel, math)
Pushing the CH1, CH2, CH3, CH4 , or Math buttons have the following effect:
• If the waveform is off, the waveform is turned on and its menu is displayed.
• If the waveform is on and its menu is not displayed, its menu will be displayed.
• If the waveform is on and its menu is displayed, the waveform is turned off and its menu goes away.
The description of the Channel Menu is shown as the following list:
Function
Menu
Setting
Coupling
Inverted
Description
DC
AC
GROUND
ON
OFF
Attenu
Pass both AC and DC components of the input signal.
Block the DC component of the input signal.
Disconnect the input signal.
Display inverted waveform.
Display original waveform.
0.001X to
1000X
Step by 1 – 2 – 5. Match this to the probe attenuation factor to have an accurate reading of vertical scale.
Probe
Limit
MeasCurr
YES
NO
A/V (mA/V)
V/A (mV/A)
Full band
20M
If you are measuring current by probing the voltage drop across a resistor, choose YES .
Turn the M knob to set the Amps/Volts ratio. The range is 100 mA/V - 1 KA/V.
Amps/Volts ratio = 1/Resistor value
Volts/Amp ratio is automatically calculated.
Get full bandwidth.
Limit the channel bandwidth to 20MHz to reduce display noise.
1.
To set channel coupling
Taking the Channel 1 for example, the measured signal is a square wave signal containing the direct current bias. The operation steps are shown as below:
(1) Push the CH1 button to show the CH1 SETUP menu.
(2) Select Coupling in the bottom menu.
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4.Advanced User Guidebook
(3) Select DC in the right menu. Both DC and AC components of the signal are passed.
(4) Select AC in the right menu. The direct current component of the signal is blocked.
2.
To adjust the probe attenuation
For correct measurements, the attenuation coefficient settings in the operating menu of
the Channel should always match what is on the probe (see " How to Set the Probe
Attenuation Coefficient " on P12). If the attenuation coefficient of the probe is 1:1, the
menu setting of the input channel should be set to X1.
Take the Channel 1 as an example, the attenuation coefficient of the probe is 10:1, the operation steps are shown as follows:
(1) Push the CH1 button to show the CH1 SETUP menu.
(2) Select Probe in the bottom menu. Select Attenu in the right menu, turn the M knob to set it as 10× .
3.
To measure current by probing the voltage drop across a resistor
Take the Channel 1 as an example, if you are measuring current by probing the voltage drop across a 1
Ω resistor, the operation steps are shown as follows:
(1) Push the CH1 button to show CH1 SETUP menu.
(2) Select Probe in the bottom menu. In the right menu, set MeasCurr as YES , the
A/V radio menu will appear below. Select it; turn the M knob to set the Amps/Volts ratio. Amps/Volts ratio = 1/Resistor value. Here the A/V radio should be set to 1.
4.
To invert a waveform
Waveform inverted: the displayed signal is turned 180 degrees against the phase of the earth potential.
Taking the Channel 1 for example, the operation steps are shown as follows:
(1) Push the CH1 button to show the CH1 SETUP menu.
(2) Select Inverted in the bottom menu, switch to ON. the waveform is inverted. Push again to switch to OFF, the waveform goes back to its original one.
5.
To set bandwidth limit
When high frequency components of a waveform are not important to its analysis, the bandwidth limit control can be used to reject frequencies above 20 MHz.
Taking the Channel 1 for example, the operation steps are shown as below:
(1) Push the CH1 button to show CH1 SETUP menu.
(2) Select Limit in the bottom menu.
(3) Select Full band in the right menu. The high frequency of the signal will be allowed to pass.
(4) Select 20M in the right menu. The bandwidth is limited to 20 MHz. The frequencies above 20MHz will be rejected.
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4.Advanced User Guidebook
Use Mathematical Manipulation Function
The Mathematical Manipulation function is used to show the results of the addition, multiplication, division and subtraction operations between two channels, the FFT operation for a channel, advanced math feature including Intg, Diff, Sqrt, user defined function, and digital filter. Press the Math button to display the menu on the bottom.
The Waveform Calculation menu:
Function Menu
Waveform
Math
FFT
Factor1
Sign
Factor2
Setting
CH1
CH2
CH3
CH4
Description
Select the signal source of the factor1
+ - * /
Select the sign of mathematical manipulation
CH1
CH2
CH3
CH4
Select the signal source of the factor2
Turn the M knob to adjust the vertical position of the Math waveform
Vertical
(div)
Vertical
(V/div)
Source
Window
Format
Hori (Hz)
Vertical
Turn the M knob to adjust the vertical division of the Math waveform
CH1
CH2
CH3
CH4
Select the FFT source.
Hamming
Rectangle
Blackman
Hanning
Kaiser
Bartlett
V RMS
Decibels
Radian
Degrees
Position value
Select window for FFT.
V RMS and Decibels are
Time base value/
Position value
Division value/
Switch to select the horizontal position or time base of the FFT waveform, turn the
M knob to adjust it
Switch to select the vertical position or voltage division of the FFT waveform, turn the M knob to adjust it
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4.Advanced User Guidebook
User
Function
Intg, Diff, Sqrt, and user defined function channel
CH1
CH2
Select channel
DIR type low-pass high-pass band-pass band-reject
Only the signals whose frequencies are lower than the current cut-off frequency can pass the filter.
Only the signals whose frequencies are greater than the current cutoff frequency can pass the filter.
Only the signals whose frequencies are greater than the cutoff frequency down and lower than the current cutoff frequency upper can pass the filter.
Only the signals whose frequencies are lower than the current cutoff frequency down or greater than the current cutoff frequency upper can pass the filter. window
Retangular
Tapered
Triangular
Hanning
Hamming
Blackman
Select window for digital filter
FFT Peak cut-off fre or upper down
Vertical
(div)
ON
OFF
Turn the
Turn the
M
M
knob to set cut-off frequency
knob to adjust the vertical position of Math waveform
Enable or disable FFT peak search.
Dynamic marker ▽ marks the FFT peak.
Waveform math
Taking the additive operation between Channel 1 and Channels 2 for example, the operation steps are as follows:
1.
Press the Math button to display the math menu in the bottom. The pink M waveform appears on the screen.
2.
Select Waveform Math in the bottom menu.
3.
In the right menu, select Factor1 as CH1 .
4.
Select Sign as + in the right menu.
5.
In the right menu, select Factor2 as CH2 .
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4.Advanced User Guidebook
6.
Select Vertical (div) in the right menu, turn the M knob to adjust the vertical position of
Math waveform.
7.
Select Vertical (V/div) in the right menu, turn the M knob to adjust the vertical division of Math waveform.
User defined function
1.
Press the Math button to display the math menu in the bottom.
2.
Select User Function in the bottom menu, an expression input keyboard pops up.
Expression
Operators
Clear
Channel
Confirm
Integral Differential Square root
3.
Create an expression. When done, choose in the keyboard to confirm. The division of Math waveform is displayed at the left bottom of screen.
Digital Filter
Digital filter provides 4 types of filters (low pass, high pass, band pass and band reject).
The specified frequencies can be filtered by setting the cut-off frequency. Digital filter can only apply to CH1 or CH2.
1.
Press the Math button to display the math menu in the bottom.
2.
Select DIR in the bottom menu.
3.
In the right menu, select channel as CH1 or CH2 .
4.
In the right menu, select type , select the desired filter type.
5.
In the right menu, select window , select the desired window.
6.
When low-pass or high-pass type is selected, select cut-off fre in the right menu.
When band-pass or band-reject type is selected, select upper or down in the right menu. Turn M knob to adjust the frequency.
7.
In the right menu, select Vertical (div) , turn M knob to adjust the vertical position of
Math waveform. The voltage division of Math waveform is the same as the selected channel.
Note : On the Scan format, digital filter is disabled.
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4.Advanced User Guidebook
Using FFT function
The FFT (fast Fourier transform) math function mathematically converts a time-domain waveform into its frequency components. It is very useful for analyzing the input signal on
Oscilloscope. You can match these frequencies with known system frequencies, such as system clocks, oscillators, or power supplies.
FFT function in this oscilloscope transforms 8192 data points of the time-domain signal into its frequency components mathematically (the record length should be 10K or above).
The final frequency contains 4096 points ranging from 0Hz to Nyquist frequency.
Taking the FFT operation for example, the operation steps are as follows:
1.
Press the Math button to display the math menu in the bottom.
2.
Select FFT in the bottom menu.
3.
In the right menu, select Source as CH1 .
4.
In the right menu, select Window . In the left menu, turn the M knob to select the proper window type.
5.
In the right menu, select Format . In the left menu, turn the M knob to select amplitude unit ( V RMS , Decibels ) or phase unit ( Radian , Degrees ).
6.
Select Hori (Hz) in the right menu; select repeatedly to make the symbol in front of the horizontal position value (the upper one), turn the M knob to adjust the horizontal position of FFT waveform; then select to make the symbol in front of the time base value below, turn the M knob to adjust the time base of FFT waveform.
7.
Select Vertical in the right menu; do the same operations as above to set the vertical position and vertical division.
To select the FFT window
■ There are 6 FFT windows. Each one has trade-offs between frequency resolution and magnitude accuracy. What you want to measure and your source signal characteristics help you to determine which window to use. Use the following guidelines to select the best window.
Type Characteristics Window
Hamming
Better solution for magnitude than Rectangle, and good for frequency as well. It has slightly better frequency resolution than Hanning.
Recommend to use for:
Sine, periodic and narrow band random noise.
Transients or bursts where the signal levels before and after the event are significantly different.
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Rectangle
Blackman
Hanning
Kaiser
Bartlett
4.Advanced User Guidebook
Best solution for frequency, worst for magnitude.
Best type for measuring the frequency spectrum of nonrepetitive signals and measuring frequency components near DC.
Recommend to use for:
Transients or bursts, the signal level before and after the event are nearly equal.
Equal-amplitude sine waves with frequencies those are very close.
Broadband random noise with a relatively slow varying spectrum.
Best solution for magnitude, worst for frequency.
Recommend to use for:
Single frequency waveforms, to find higher order harmonics.
Good for magnitude, but poorer frequency resolution than Hamming.
Recommend to use for:
Sine, periodic and narrow band random noise.
Transients or bursts where the signal levels before and after the event are significantly different.
The frequency resolution when using the Kaiser window is fair; the spectral leakage and amplitude accuracy are both good.
The Kaiser window is best used when frequencies are very close to the same value but have widely differing amplitudes (the side lobe level and shape factor are closest to the traditional Gaussian RBW).
This window is also good for random signals.
The Bartlett window is a slightly narrower variant of the triangular window, with zero weight at both ends.
Notes for using FFT
Use the default dB scale for details of multiple frequencies, even if they have very different amplitudes. Use the Vrms scale to compare frequencies.
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4.Advanced User Guidebook
DC component or offset can cause incorrect magnitude values of FFT waveform. To minimize the DC component, choose AC Coupling on the source signal.
To reduce random noise and aliased components in repetitive or single-shot events, set the oscilloscope acquisition mode to average.
What is Nyquist frequency?
The Nyquist frequency is the highest frequency that any real-time digitizing oscilloscope can acquire without aliasing. This frequency is half of the sample rate. Frequencies above the Nyquist frequency will be under sampled, which causes aliasing. So pay more attention to the relation between the frequency being sampled and measured.
Use Vertical Position and Scale Knobs
The 4 channels use the same Vertical Position and Vertical Scale knobs. If you want to set the vertical scale and vertical position of a channel, press CH1, CH2, CH3 or CH4 at first to select the desired channel. Then turn the Vertical Position and Vertical Scale knobs to set the values.
1.
The Vertical Position knob is used to adjust the vertical positions of the selected waveforms.
The analytic resolution of this control knob changes with the vertical division. When the Vertical Position knob is rotated, the pointer of the earth datum point of the selected channel is directed to move up and down following the waveform, and the
position message at the center of the screen would change accordingly (see Figure
2.
The Vertical Scale knob is used to regulate the vertical resolution of the selected wave forms.
The sensitivity of the vertical division steps as 1-2-5. The vertical scale is displayed at
the left bottom corner of the screen (see Figure 4-1 ).
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4.Advanced User Guidebook
Figure 4-1 Information about Vertical Scale
How to Set the Horizontal System
The HORIZONTAL CONTROLS includes the Horizontal HOR button and such knobs as Horizontal Position and Horizontal Scale .
1.
Horizontal Position knob: this knob is used to adjust the horizontal positions of all channels (include those obtained from the mathematical manipulation), the analytic resolution of which changes with the time base.
2.
Horizontal Scale knob: it is used to set the horizontal scale factor for setting the main time base or the window.
3.
Horizontal HOR button: push it to switch between the normal mode and the wave zoom mode. For more detailed operations, see the introductions below.
Zoom the Waveform
Push the Horizontal HOR button to enter wave zoom mode. The top half of the display shows the Main window and the bottom half displays the Zoom window. The
Zoom window is a magnified portion of the Main window.
Figure 4-2 Wave Zoom Mode
In normal mode, the Horizontal Position and Horizontal Scale knobs are used to adjust the horizontal position and time base of the Main window.
In wave zoom mode, the Horizontal Position and Horizontal Scale knobs are used to adjust the horizontal position and time base of the Zoom window.
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4.Advanced User Guidebook
How to Set the Trigger/Decoding System
Trigger determines when DSO starts to acquire data and display waveform. Once trigger is set correctly, it can convert the unstable display to meaningful waveform.
When DSO starts to acquire data, it will collect enough data to draw waveform on left of trigger point. DSO continues to acquire data while waiting for trigger condition to occur. Once it detects a trigger it will acquire enough data continuously to draw the waveform on right of trigger point.
Trigger control area consists of 1 knob and 2 menu buttons.
Trigger Level : The knob that set the trigger level; push the knob and the level will be set as the vertical mid point values of the amplitude of the trigger signal.
Force: Force to create a trigger signal and the function is mainly used in
"Normal" and "Single" mode.
Trigger Menu: The button that activates the trigger control menu.
Trigger Control
The oscilloscope provides three trigger types: single trigger, logic trigger and bus trigger. Each type of trigger has different sub menus.
Press Trigger Menu panel button, then bottom menu Trigger Type, select Single,
Logic or Bus Trigger on the popup right menus, turn the M knob to choose different trigger types.
Single trigger : Use a trigger level to capture stable waveforms in two channels simultaneously.
Logic trigger : Trigger the signal according to the condition of logic relationship.
Bus trigger : Set bus timing trigger.
The Single Trigger, Logic Trigger and Bus Trigger menus are described respectively as follows:
Single Trigger
Single trigger has eight types: edge trigger, video trigger, pulse trigger, slope trigger, runt trigger, windows trigger, timeout trigger and Nth edge trigger.
Edge Trigger : It occurs when the trigger input passes through a specified voltage level with the specified slope.
Video Trigger : Trigger on fields or lines for standard video signal.
Pulse Trigger : Find pulses with certain widths.
Slope Trigger : The oscilloscope begins to trigger according to the signal rising or
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4.Advanced User Guidebook falling speed.
Runt Trigger : Trigger pulses that pass through one trigger level but fail to pass through the other trigger level.
Windows Trigger : Provide a high trigger level and low trigger level, the oscilloscope triggers when the input signal passes through the high trigger level or the low trigger level.
Timeout Trigger : The oscilloscope triggers when the time interval from when the rising edge (or the falling edge) passes through the trigger level to when the neighbouring falling edge (or the rising edge) passes through the trigger level is greater than the timeout time set.
Nth Edge Trigger : The oscilloscope triggers on the Nth edge that appears on the specified idle time.
The eight trigger modes in Single Trigger are described respectively as follows:
1. Edge Trigger
An edge trigger occurs on trigger level value of the specified edge of input signal.
Select Edge trigger mode to trigger on rising edge or falling edge.
In Edge Trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, ， indicates that trigger type is edge, trigger source is CH1, coupling is DC, and trigger level is 0.00mV.
Edge menu list:
Menu Settings Instruction
Set vertical channel trigger type as edge trigger. Single Mode Edge
CH1
CH2
Source CH3
CH4
AC Line
Channel 1 as trigger signal.
Channel 2 as trigger signal.
Channel 3 as trigger signal.
Channel 4 as trigger signal.
AC power line as trigger signal.
Coupling
Slope
AC
DC
HF
Block the direct current component.
Allow all component pass.
Block the high-frequency signal, only low-frequency component pass.
Trigger on rising edge
Trigger on falling edge
Mode
Holdoff
Auto
Normal
Single
Holdoff
Acquire waveform even no trigger occurs
Acquire waveform when trigger occurs
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, turn the M knob or click to set time interval before another trigger occur, press
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4.Advanced User Guidebook
Reset panel button or click to move cursor to choose which digit to be set.
Set Holdoff time as default value (100 ns).
Trigger Level : trigger level indicates vertical trig position of the channel, turn the trig level knob or slide on the touch screen upward and downward to move trigger level, during setting, an orange red dotted line displays to show trig position, and the value of trigger level changes at the right corner, after setting, dotted line disappears.
2. Video Trigger
Choose video trigger to trigger on fields or lines of NTSC, PAL or SECAM standard video signals.
In Video Trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, ， indicates that trigger type is Video, trigger source is CH1, and Sync type is Even.
Video Trigger menu list:
MENU SETTING INSTRUCTION
Single Mode Video Set vertical channel trigger type as video trigger
CH1
CH2
Select CH1 as the trigger source
Select CH2 as the trigger source
Source
CH3
CH4
NTSC
Select CH3 as the trigger source
Select CH4 as the trigger source
Modu Select video modulation
Sync
PAL
SECAM
Line
Field
Odd
Even
Line NO.
Synchronic trigger in video line
Synchronic trigger in video field
Synchronic trigger in video odd filed
Synchronic trigger in video even field
Synchronic trigger in designed video line, turn the M knob or click to set the line number
Mode
Holdoff
Auto Acquire waveform even no trigger occurred
3. Pulse Width Trigger
Pulse trigger occurs according to the width of pulse. The abnormal signals can be detected through setting up the pulse width condition.
In Pulse Width Trigger mode, the trigger setting information is displayed on bottom
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4.Advanced User Guidebook right of the screen, for example, ， indicates that trigger type is pulse width, trigger source is CH1, coupling is DC, polarity is positive, and trigger level is 0.00mV.
Pulse Width Trigger menu list:
MENU SETTING INSTRUCTION
Single Mode
Source
Coupling
Pulse
CH1
CH2
CH3
CH4
AC
DC
Polarity
Set vertical channel trigger type as pulse trigger.
Select CH1 as the trigger source
Select CH2 as the trigger source
Select CH3 as the trigger source
Select CH4 as the trigger source
Not allow DC portion to pass.
Allow all portion pass.
Choose the polarity
Select pulse width condition and adjust the M knob when or click to set time, press panel button or click to move cursor to choose which digit to be set.
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
Mode
Holdoff
Auto
Normal
Single
Holdoff
Reset
100 ns - 10 s, adjust interval before another trigger occur, press panel button or click
M knob or click choose which digit to be set.
Set Holdoff time as 100 ns
to set time
to move cursor to
4. Slope Trigger
Slope trigger sets the oscilloscope as the positive/negative slope trigger within the specified time.
In Slope Trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, ， indicates that trigger type is slope, trigger source is CH1, slope is rising, 0.00mV is the differential between up level and low level threshold.
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4.Advanced User Guidebook
Slope trigger menu list:
SETTING MENU
Single
Mode
Slope
Source
CH1
CH2
CH3
CH4 slope
When
Threshold
&SlewRate
Mode
Holdoff
INSTRUCTION
Set vertical channel trigger type as slope trigger.
Select CH1 as the trigger source
Select CH2 as the trigger source
Select CH3 as the trigger source
Select CH4 as the trigger source
Slope selecting
High level
Low level
Slew rate
Auto
Normal
Single
Holdoff
Reset
Set slope condition; turn the M knob or click to set slope time, press panel button or click
to move cursor to choose which digit to be set.
Adjust M knob to set the High level upper limit.
Adjust M knob to set Low level lower limit.
Slew rate = (High level - Low level) / Settings
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns – 10 s, turn the M knob or click time interval before another trigger occur, press panel button or click choose which digit to be set.
Set Holdoff time as 100 ns
to set
to move cursor to
5.Runt Trigger
Trigger pulses that pass through one trigger level but fail to pass through the other trigger level. Shown as below figure,
In Runt Trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, ， indicates that trigger type is runt, trigger source is CH1, polarity is positive, 0.00mV is the differential between up level and low level threshold.
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4.Advanced User Guidebook
Runt Trigger
Runt Trigger menu list:
SETTING INSTRUCTION MENU
Single
Mode
Runt Set vertical channel trigger type as runt trigger.
Source
Threshold
CH1
CH2
CH3
CH4
Up Level
Low Level
Select CH1 as the trigger source
Select CH2 as the trigger source
Select CH3 as the trigger source
Select CH4 as the trigger source
Adjust the threshold.
Adjust the
M
M
knob or click
knob or click
to set the up level
to set the low level
Polarity threshold.
Positive Polarity, the oscilloscope triggers on the positive runt pulse.
Negative Polarity, the oscilloscope triggers on the negative runt pulse.
Condition
Adjust the M knob or click to set pulse width, press panel button or click to move cursor to choose which digit to be set.
Trigger when runt pulse is greater than the set pulse width.
Trigger when runt pulse equals to the set pulse width.
Trigger when runt pulse is lower than the set pulse width.
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Mode
Holdoff
Auto
Normal
Single
Holdoff
4.Advanced User Guidebook
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob or click interval before another trigger occur ，
to set time
press
Reset panel button or click which digit to be set.
Set Holdoff time as 100 ns
to move cursor to choose
6.Windows Trigger
Provide a high trigger level and low trigger level, the oscilloscope triggers when the input signal passes through the high trigger level or the low trigger level.
In Windows Trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, ， indicates that trigger type is windows, trigger source is CH1, polarity is positive, 0.00mV the differential between up level and low level threshold.
Windows Trigger menu list:
MENU
Single
Mode
SETTING INSTRUCTION
Windows Set vertical channel trigger type as Windows trigger.
Source
Threshold
CH1
CH2
CH3
CH4
Up Level
Low Level
Select CH1 as the trigger source
Select CH2 as the trigger source
Select CH3 as the trigger source
Select CH4 as the trigger source
Adjust the threshold.
Adjust the
M
M
knob or click
knob or click
to set the up level
to set the low level
Condition
Polarity threshold.
Positive Polarity, the oscilloscope triggers on the positive Windows pulse.
Negative Polarity, the oscilloscope triggers on the negative Windows pulse.
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4.Advanced User Guidebook
Mode
Holdoff
Auto
Normal
Single
Holdoff
Reset
Enter: Triggers when the trigger signal enters the specified trigger level range.
Exit: Triggers when the trigger signal exits the specified trigger level range.
Time: Specify the hold time of the input signal after entering the specified trigger level. The oscilloscope triggers when the accumulated hold time is greater than the windows time. Available range is 30ns-10s, default
100ns.
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob or click to set time interval before another trigger occur, press panel button or click which digit to be set.
Set Holdoff time as 100 ns
to move cursor to choose
7.Timeout Trigger
The oscilloscope triggers when the time interval from when the rising edge (or the falling edge) passes through the trigger level to when the neighbouring falling edge
(or the rising edge) passes through the trigger level is greater than the timeout time set.
In Timeout Trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, trigger source is CH1, edge is positive, 0.00mV is up level or low level threshold.
Timeout Trigger menu list:
MENU
Single
Mode
SETTING INSTRUCTION
Timeout Set vertical channel trigger type as Timeout trigger.
Source
CH1
CH2
CH3
CH4
Select CH1 as the trigger source
Select CH2 as the trigger source
Select CH3 as the trigger source
Select CH4 as the trigger source
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4.Advanced User Guidebook
Edge
Configure
Mode
Holdoff
Idle Time
Auto
Normal
Single
Holdoff
Reset
Edge Start timing when the rising edge of the input signal passes through the trigger level.
Start timing when the falling edge of the input signal passes through the trigger level.
Set idle time. Idle time means the minimum time of idle clock before searching data that can meet trigger conditions. Available range is 30ns-10s, default 100ns.
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob or click to set time interval before another trigger occur, press panel button or click which digit to be set.
Set Holdoff time as 100 ns
move cursor to choose
8.Nth Edge trigger
The oscilloscope triggers on the Nth edge that appears on the specified idle time. As figure shown below, the oscilloscope should trigger on the second falling edge after the specified idle time and the idle time should be set to P1/P2/P3/P4 < Idle Time < M.
Wherein, M, P1, P2, P3 and P4 are positive or negative pulse width participating in the counting.
In Nth Edge Trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, ， indicates that trigger type is Nth
Edge, trigger source is CH1, -150V is up level or low level threshold.
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4.Advanced User Guidebook
Nth Edge Trigger
Nth Edge Trigger menu list:
MENU
Single
Mode
SETTING INSTRUCTION
Nth Edge Set vertical channel trigger type as Nth Edge trigger.
Source
Edge
CH1
CH2
CH3
CH4
Edge
Select CH1 as the trigger source
Select CH2 as the trigger source
Select CH3 as the trigger source
Select CH4 as the trigger source
Trigger on the rising edge of the input signal when voltage level meets the specified trigger level.
Trigger on the falling edge of the input signal when voltage level meets the specified trigger level.
Set idle time before the edge counting in Nth Edge
Configure
Mode
Holdoff
Idle Time
Trigger. Adjust M knob or click to set idle time press panel button or click to move cursor to choose which digit to be set. Available range is 30ns-10s, default 100ns.
Edge Num Set the edge number value of
“
N
”
in Nth Edge trigger.
Auto
Normal
Single
Holdoff
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob or click to set time interval before another trigger occur, press
Reset panel button or click which digit to be set.
Set Holdoff time as 100 ns
move cursor to choose
Logic Trigger
Trigger according to logic relation.
In Logic Trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, ， indicates that trigger type is Logic, logic mode is AND, CH1 high level and trigger level is 0.00mV.
Logic Trigger menu list:
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4.Advanced User Guidebook
MENU
Mode
Logic
Mode
Input Mode
Out Mod
Mode
Holdoff
SETTING INSTRUCTION
Logic Set vertical channel trigger type as Logic trigger.
AND
OR
XNOR
XOR
Set logic mode as AND.
Set logic mode as OR.
Set logic mode as XNOR.
Set logic mode as XOR.
CH1
CH2
CH3
CH4
Set CH1 as High Level, Low level, high or low level,
Rise and Fall.
Set CH2 as High Level, Low level, high or low level,
Rise and Fall.
Set CH3 as High Level, Low level, high or low level,
Rise and Fall.
Set CH4 as High Level, Low level, high or low level,
Rise and Fall.
Note
：
When input mode of one channel is set as Rise or
Fall, the other channel could not be set as Rise and Fall at the same time.
Goes True Trigger when condition turns True from False.
Goes False Trigger when condition turns False from True.
Is True >
Trigger when the time of true condition is greater than the set time
Is True =
Is True <
Auto
Normal
Single
Holdoff
Trigger when the time of true condition is equal to the set time
Trigger when the time of true condition is lower than the set time
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob or click to set time interval before another trigger occur, press panel button or click move cursor to choose
Reset which digit to be set.
Set Holdoff time as 100 ns
Bus Trigger
1.
RS232 Trigger
RS232 is a serial communication mode used in the data transmission between PCs or between PC and Terminal. A character is transmitted as a frame of data which consist of 1bit start bit, 5-8bits data bits, 1bit check bit and 1-2 stop bits.
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4.Advanced User Guidebook
In RS232 bus trigger mode, the trigger setting information is displayed on bottom
， indicates that trigger type right of the screen, for example, is RS232, CH1 trigger level is 0.00mV.
Format as shown in the figure below,
RS232 Trigger
RS232 Trigger menu list:
MENU SETTING INSTRUCTION
Bus Type RS232 Set vertical channel bus type as RS232 trigger.
Input
When
Configure
Sour ce
Pola rity
Start
Error
CH1
CH2
CH3
CH4
Nor mal
Inve rted
Select CH1 as the trigger source.
Select CH2 as the trigger source.
Select CH3 as the trigger source.
Select CH4 as the trigger source.
Select polarity of data transmission as Normal. Select polarity of data transmission as Inverted.
Chk Error
Data
Start
Error
Trigger on the start frame of position. After choosing this condition, press Configure to enter detailed settings.
Trigger when error frame is detected. After choosing this condition, press Configure to enter detailed settings.
Trigger when Chk Error is detected. After choosing this condition, press Configure to enter detailed settings.
Trigger on the last bit of the preset data. After choosing this condition, press Configure to enter detailed settings.
Common Baud: adjust M knob to choose common baud.
Custom Baud: adjust M knob to choose baud , ranges from 50 to 10,000,000.
Stop Bit ： Select “1”or ”2”.
Parity: “NO””EVEN””ODD”
Common Baud: adjust M knob to choose common baud.
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4.Advanced User Guidebook
Mode
Holdoff
Chk Error
Data
Auto
Normal
Single
Custom Baud: adjust M knob to choose baud , ranges from 50 to 10,000,000.
Even-Odd
：
Select Even or Odd.
Common Baud: adjust M knob to choose common baud.
Custom Baud: adjust M knob to choose baud , ranges from 50 to 10,000,000.
Data Bits ： Set as 5 、 6 、 7 、 8 bits.
Data ：
0-63, 0-127 or 0-255.
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
2.
I2C Trigger
The I2C serial bus consists of SCL and SDA. The transmission rate is determined by
SCL, and the transmission data is determined by SDA. As shown in below figure, oscilloscope can trigger on the start, restart, stop, ack lost, specific device address or data value, also device address and data value at the same time.
In I2C bus trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, ， indicates that trigger type is I2C, CH1 trigger level is 0.00mV, CH2 trigger level is 0.00mV.
I2C Trigger menu list:
MENU SETTING INSTRUCTION
Bus Type
Source
When
I2C Set vertical channel bus type as I2C trigger.
SCL
SDA
Start
Set SCL.
Set SDA.
Trigger when SDA data transitions from high to low while SCL is high.
Restart When another start condition occurs before a stop
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4.Advanced User Guidebook
Mode
Holdoff
Ack Lost
Address
Adr
For
Stop mat
Addr
Bits
Addr ess
Dire ction
Data condition.
Trigger when SDA data transitions from low to high while SCL is high.
Trigger when SDA data is high during any acknowledgement of SCL clock position.
Trigger on the read or write bit when the preset address is met.
Set Address Bits to be “7” 、 “8”or“10”.
Set address according to the preset address bits, address range is 0-127, 0-255, 0-1023 respectively.
Set Data Direction to be Read or Write.
Note: The set is not available when Address bits is set to “8”.
Search for the preset data value on SDA and trigger on the dump edge of SCL of the last bit of the data area.
DatF orma t
Byte lengt h
Curr entB it
Data
All
Bits
Set data byte length, available range 1-5 bytes. Adjust
M knob or click to set byte length.
Select the data bit, ranges from 0 to (byte length*8 -1).
Set data to be H, L or X (H or L)
Set all the data bits to be the specified value in Data
Addr / Data
Auto
Normal
Single
Trigger when Address and Data conditions are met at the same time .
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
3.
SPI Trigger
Trigger on the specified data when the timeout condition is meet. When using SPI trigger, you need to specify the SCL and SDA data sources.
In SPI bus trigger mode, the trigger setting information is displayed on bottom right of the screen, for example,
， indicates that trigger type is SPI, CH1 trigger level is 0.00mV, CH2 trigger level is 0.00mV.
SPI Trigger menu list:
MENU SETTING INSTRUCTION
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4.Advanced User Guidebook
Bus Type
Source
SPI
SCL
SDA
Set vertical channel bus type as SPI trigger.
Set SCL.
Set SDA.
Set the minimum time that SCL must be idle, that is a period of SCL, available range 100ns-10s. Time out means SCL keeps idle for a specified time before oscilloscope starts to search for the data(SDA) on
Time Out Time out which to trigger. adjust M knob or click to set time out, press panel button or click
ClockEdg e&Data
Mode
Holdoff
move cursor to choose which digit to be set.
Clock Edge
Data Bits
Current Bit
Data
All Bits
Auto
Normal
Single
Set Edge Clock as Rising edge or Falling edge. Means sample the SDA data on the rising edge or falling edge of the clock.
Set the number of bits of the serial data character string. It can be set to any integer between 4-32. adjust
M knob or click to set Data Bits.
Set the number of the data bits, ranges from 0-31, adjust M knob or click to set Current Bit.
Set the value of the current data bit as H,L or X (H or
L).
Set all the data bits to be the specified value in Data.
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
4.
CAN Trigger
CAN (Controller Area Network) is a serial communication protocol of the ISO international standardization.
By using the CAN bus trigger, you can trigger on Start of Frame , Type of Frame ,
Identifier , Data , ID & Data , End of Frame , Missing Ack , or Bit Stuffing Error .
You need to specify the signal source, trigger signal type, sample point, and signal rate of the CAN signal.
In CAN bus trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, ， indicates that trigger
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4.Advanced User Guidebook type is CAN, CH1 trigger level is -126 mV.
CAN Trigger menu list:
MENU SETTING INSTRUCTION
Bus Type CAN
Source
Type
Set vertical channel bus type as CAN trigger.
CH1
CH2
CH3
CH4
CAN_H
CAN_L
TX
RX
Select CH1 as the trigger source.
Select CH2 as the trigger source.
Select CH3 as the trigger source.
Select CH4 as the trigger source.
Actual CAN_H bus signal.
Actual CAN_L bus signal.
Transmission signal on the CAN signal line.
Received signal on the CAN signal line.
Input
Sample
Point
Turn the M knob (or tap on in touchscreen) to set the Sample point, which is a point within a bit’s time. The oscilloscope samples the bit level at this point. “Sample point” is represented by the percentage of “the time from the start of the bit’s time to the sample point time” in the
“bit’s time”. The range is 5% to 95%.
Common
Baud
Turn the M knob to select from the Baud list on the left.
Condition
Custom
Baud
Start
Type
ID
Data
Turn the M knob (or tap on in touchscreen) to set the Baud. The range is 10,000 to 1,000,000.
Tip : You can select the nearest value in Common Baud, and then adjust it in this menu.
Trigger on the start frame of the data frame.
Type
(Bottom menu)
Data
Remote
Error
Trigger on the selected frame.
Overload
Configure
(Bottom menu)
Configure
(Bottom menu)
Format Select Standard or Extended.
Use the M knob and Direction
ID key on the front panel to set.
Byte
Length
Set the number of bytes with the
M knob. The range is 1 to 8.
Set the data with the M knob
Data and Direction key on the front panel.
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4.Advanced User Guidebook
ID&Data
Configure
(Bottom menu)
Format Select Standard or Extended.
Use the M knob and Direction
ID key on the front panel to set.
Byte
Length
Set the number of bytes with the
M knob. The range is 1 to 8.
Set the data with the M knob
Data and Direction key on the front panel.
Trigger on the end frame of the data frame.
Trigger on Missing Ack.
Mode
Holdoff
End
Missing
Ack
Bit
Stuffing
Auto
Normal
Single
Bus Decoding
Trigger on Bit Stuffing Error.
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
1.
RS232 Decoding
To decode RS232 signal:
(1) Connect the RS232 signal to the Signal Input Channel of the oscilloscope.
(2) Adjust to the proper time base and voltage division.
(3) In trigger menu, select Bus trigger, and select bus type as RS232, set parameters based on the characteristics of the signal, trigger the signal correctly and obtain
stable display. Refer to " RS232 Trigger " on page 42.
(4) Push the Decode button on the front panel. Select bus type as RS232. set parameters based on the characteristics of the signal. When the parameters are set correctly, the information carried by the signal will be displayed.
Tip: If there are repetitive menu items in both trigger menu and decoding menu, you can set anyone of them, the other will be changed synchronously.
Note :
Use the Trigger Level knob to adjust the thresholds of bus trigger and bus decoding.
When decoding, if "Parity" is not set to "None", and the check bit error is detected, two red error marks will be displayed in the corresponding position in the waveform.
RS232 Decoding menu list:
MENU SETTING INSTRUCTION
Bus Type RS232 Set bus type of decoding as RS232.
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4.Advanced User Guidebook
Common
Baud
Turn the M knob to select from the Baud list on the left.
Configure
Display
Turn the M knob (or tap on in touchscreen) to set
Custom
Baud
Data Bits
Parity the Baud. The range is 50 to 10,000,000.
Tip : You can select the nearest value in Common Baud, and then adjust it in this menu.
Set the data width of each frame to match the signal. It can be set to 5, 6, 7 or 8. set the even-odd check mode to match the polarity used by the signal.
Format
Binary
Decimal
Hex
ASCII
EventTable
ON
OFF
Set the display format of the bus.
Select "ON" to display the event table.
Save
EventTable
If a USB storage device is currently connected to the instrument, save the event table data in a .csv
(spreadsheet) formatted file on the external USB storage device.
ASCII
Table
ON
OFF
Select "ON" to display the ASCII table.
2.
I2C Decoding
To decode I2C signal:
(1) Connect the clock line (SCLK) and the data line (SDA) of the I2C signal to the
Signal Input Channels of the oscilloscope.
(2) Adjust to the proper time base and voltage division.
(3) In trigger menu, select Bus trigger, and select bus type as I2C, set parameters based on the characteristics of the signal, trigger the signal correctly and obtain
stable display. Refer to " I2C Trigger " on page 44.
(4) Push the Decode button on the front panel. Select bus type as I2C. set parameters based on the characteristics of the signal. When the parameters are set correctly, the information carried by the signal will be displayed.
Tip: If there are repetitive menu items in both trigger menu and decoding menu, you can set anyone of them, the other will be changed synchronously.
Decoded information interpretation:
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4.Advanced User Guidebook
Information Abbreviation Background
Read Address R, Read, or do not display Green
Write Address W, Write, or do not display Green
Data D, Data, or do not display Black
Note :
Use the Trigger Level knob to adjust the thresholds of bus trigger and bus decoding.
When the ACK (ACKnowledge Character) is not met, two red error marks will be displayed in the corresponding position in the waveform.
I2C Decoding menu list:
MENU SETTING INSTRUCTION
Bus Type I2C Set bus type of decoding as I2C.
Display
Format
Binary
Decimal
Hex
ASCII
EventTable
ON
OFF
Set the display format of the bus.
Select "ON" to display the event table.
Save
EventTable
If a USB storage device is currently connected to the instrument, save the event table data in a .csv
(spreadsheet) formatted file on the external USB storage device.
ASCII
Table
ON
OFF
Select "ON" to display the ASCII table.
3.
SPI Decoding
To decode SPI signal:
(1) Connect the clock line (SCLK) and the data line (SDA) of the SPI signal to the
Signal Input Channels of the oscilloscope.
(2) Adjust to the proper time base and voltage division.
(3) In trigger menu, select Bus trigger, and select bus type as SPI, set parameters based on the characteristics of the signal, trigger the signal correctly and obtain
stable display. Refer to " SPI Trigger " on page 45.
(4) Push the Decode button on the front panel. Select bus type as SPI. set parameters based on the characteristics of the signal. When the parameters are set correctly, the information carried by the signal will be displayed.
Tip: If there are repetitive menu items in both trigger menu and decoding menu, you can set anyone of them, the other will be changed synchronously.
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4.Advanced User Guidebook
Note :
Use the Trigger Level knob to adjust the thresholds of bus trigger and bus decoding.
LS First in Bit Order menu item (Least Significant Bit First) means that the least significant bit will arrive first: hence e.g. the hexadecimal number 0x12, will arrive as the sequence 01001000 in binary representation, will be decoded as the reversed sequence 00010010.
SPI Decoding menu list:
MENU SETTING INSTRUCTION
Bus Type SPI Set bus type of decoding as SPI.
Configure
Display
SCLK
Time Out
Data Bits
Select the clock edge to match the signal, sample the
SDA data on the rising or falling edge of the clock.
Set the minimum time that the clock (SCL) signal must be idle before the oscilloscope starts to search for the data
(SDA) on which to trigger. The range is 30 ns to 10 s.
Set the data width of each frame to match the signal. It can be set to any integer between 4 and 32.
Bit Order Select LS First or MS First to match the signal.
Binary
Format
Decimal
Hex
ASCII
Set the display format of the bus.
EventTable
ON
OFF
Select "ON" to display the event table.
Save
EventTable
If a USB storage device is currently connected to the instrument, save the event table data in a .csv
(spreadsheet) formatted file on the external USB storage device.
ASCII
Table
ON
OFF
Select "ON" to display the ASCII table.
4.
CAN Decoding
To decode CAN signal:
(1) Connect the CAN signal to the Signal Input Channel of the oscilloscope.
(2) Adjust to the proper time base and voltage division.
(3) In trigger menu, select Bus trigger, and select bus type as CAN, set parameters based on the characteristics of the signal, trigger the signal correctly and obtain
stable display. Refer to " CAN Trigger " on page 46.
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4.Advanced User Guidebook
(4) Push the Decode button on the front panel. Select bus type as CAN. set parameters based on the characteristics of the signal. When the parameters are set correctly, the information carried by the signal will be displayed.
Tip: If there are repetitive menu items in both trigger menu and decoding menu, you can set anyone of them, the other will be changed synchronously.
Decoded information interpretation:
Information
Identifier
Overload Frame
Error Frame
Data Length code
Data
Abbreviation
I, ID, or do not display
OF
EF
L, DLC, or do not display
D, Data, or do not display
Cyclic Redundancy Check C, CRC, or do not display
Background
Green
Green
Green
Blue
Black
Valid: Purple
Error: Red
Note :
Use the Trigger Level knob to adjust the thresholds of bus trigger and bus decoding.
When the ACK (ACKnowledge Character) of Data Frame or Remote Frame is not met, two red error marks will be displayed in the corresponding position in the waveform.
Error Frame, Remote Frame, and Overload Frame will be identified in the "Data" column in the event table (Data Frame will not be identified).
CAN Decoding menu list:
MENU SETTING INSTRUCTION
Bus Type CAN Set bus type of decoding as CAN.
Display
Format
EventTable
Save
EventTable
ASCII
Table
Binary
Decimal
Hex
ASCII
Set the display format of the bus.
ON
OFF
Select "ON" to display the event table.
If a USB storage device is currently connected to the instrument, save the event table data in a .csv
(spreadsheet) formatted file on the external USB storage device.
ON
OFF
Select "ON" to display the ASCII table.
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4.Advanced User Guidebook
How to Operate the Function Menu
The function menu control zone includes 8 function menu buttons: Measure, Acquire,
Utility, Cursor, Autoscale, Save, Display, Help and 3 immediate-execution buttons:
Autoset, Run/Stop, Single.
How to Implement Sampling Setup
Push the Acquire button, Acqu Mode , Length and Intrpl is shown in the bottom menu.
The description of the Acqu Mode menu is shown as follows:
Function Menu
Sample
Acqu
Mode
Peak Detect
Setting Description
Normal sampling mode.
Use to capture maximal and minimal samples. Finding highest and lowest points over adjacent intervals. It is used for the detection of the jamming burr and the possibility of reducing the confusion.
Average 4, 16, 64, 128
It is used to reduce the random and don't-care noises, with the optional number of averages.
The description of the Record Length menu is shown as follows:
Function Menu
Length
Setting
1000
10K
100K
1M
10M
20M
40M
Description
Choose the record length
Note: When four channels are turned on, the max record length is 10M; and max 20M for two channels; max 40M for one channel.
The description of the Intrpl menu is shown as follows:
Function Menu
Intrpl
Setting
Sinx/x x
Description
Use sine(x)/x interpolation
Use linear interpolation
Interpolation method is a processing method to connect the sampled points, using some points to calculate the whole appearance of the waveform. Select the appropriate interpolation method according to the actual signal.
Sine(x)/x interpolation : Connect the sampled points with curved lines.
Linear interpolation : Connect the sampled points with straight lines.
This method is
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4.Advanced User Guidebook suitable to rebuild the straight-edged signals, such as square or pulse wave.
Figure 4-3 Sine(x)/x interpolation
Figure 4-4 Linear interpolation
How to Set the Display System
Push the Display button and the Display menu is shown as follows:
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4.Advanced User Guidebook
Function Menu
Type
Persist
&Color
Persist
Setting
Dots
Vect
OFF
1 Second
2 Seconds
5 Seconds
Infinity
XY Mode
Counter
Color
Enable
ON
OFF
ON
OFF
Full
Screen
ON
OFF
ON
OFF
Clear
Description
Only the sampling points are displayed.
The space between the adjacent sampling points in the display is filled with the vector form.
Set the persistence time
Turn on/off the color temperature function
Turn on/off XY display function
Turn on/off the full screen view in XY mode
Turn on/off counter
Erase the results of previous acquisitions from the display. The oscilloscope will start to accumulate acquisitions again.
Persist
When the Persist function is used, the persistence display effect of the picture tube oscilloscope can be simulated. The reserved original data is displayed in fade color and the new data is in bright color.
(1) Push the Display button.
(2) Select Persist&Color in the bottom menu.
(3) Select Persist in the right menu.
(4) In the Time menu, select the persist time, including OFF , 1 Second , 2 Seconds,
5 Seconds and Infinity .
When the " Infinity " option is set for Persist Time , the measuring points will be stored till the controlling value is changed. Select OFF to turn off persistence and clear the display.
(5) Select Clear in the bottom menu to erase the results of previous acquisitions from the display. The oscilloscope will start to accumulate acquisitions again.
Color
Color temperature function uses color-grading to indicate frequency of occurrence.
The hot colors like red/yellow indicate frequently occurring events, and the colder colors like blue/green indicate rarely occurring events.
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4.Advanced User Guidebook
Cold
(1) Push the Display button.
(2) Select Persist&Color in the bottom menu.
(3) Select Color in the right menu, choose between ON / OFF .
Hot
Figure 4-5 The color temperature function is on
XY Format
This format is only applicable to Channel 1 and Channel 2. After the XY display format is selected, Channel 1 is displayed in the horizontal axis and Channel 2 in the vertical axis; the oscilloscope is set in the un-triggered sample mode: the data are displayed as bright spots.
The operations of all control knobs are as follows:
The Horizontal Scale and the Horizontal Position knobs are used to set the horizontal scale and position.
The Vertical Scale and the Vertical Position knobs are used to set the vertical scale and position.
The following functions can not work in the XY Format:
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4.Advanced User Guidebook
Reference or digital wave form
Cursor
Trigger control
FFT
Operation steps:
1.
Push the Display button.
2.
Select XY Mode in the bottom menu. Select Enable as ON in the right menu.
3.
To make the XY view full screen, select Full Screen as ON in the right menu.
Counter
It is a 6-digit single-channel counter. The counter can only measure the frequency of the triggering channel. The frequency range is from 2Hz to the full bandwidth. Only if the measured channel is in Edge mode of Single trigger type, the counter can be enabled. The counter is displayed at the right bottom of the screen.
Operation steps:
1.
Push Trigger Menu button, set the trigger type to Single , set the trigger mode to
Edge , select the signal source.
2.
Push the Display button.
3.
Select Counter as ON or OFF in the bottom menu.
How to Save and Recall a Waveform
Push the Save button, you can save the waveforms, configures, screen images, record or clone the waveform.
The description of the Save Function Menu is shown as the following table:
Function Menu
Type
Setting Description
Wave
Configure
Choose the saving type.
Image
Record
About the Record
Record/Playback Waveforms " on P64.
About the Clone
Clone
and Recall a waveform ” on P68.
When the type is Wave , the menu shows as following:
Type
Wave
Format
(Right menu)
For internal storage, only BIN can be selected. For external storage, the format can be BIN, TXT or CSV.
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4.Advanced User Guidebook
Source
Object & Show
Save
Object
Show
CH1
CH2
CH3
CH4
Math
(or MathFFT)
Check the waveform to be saved. (If certain channel is off, the corresponding menu item will be disabled.)
Wave0 to
Wave99
ON
OFF
Close All
Choose the address which the waveform is saved to or recall from.
Recall or close the waveform stored in the current object address. When the show is
ON, if the current object address has been used, the stored waveform will be shown, the address number and relevant information will be displayed at the top left of the screen; if the address is empty, it will prompt "None is saved".
Close all the waveforms stored in the object address.
Save the waveform of the source to the selected address. Whatever the Type of save menu is set, you can save the waveform by just pressing the Copy panel button in any user interface.
Select Type in the bottom menu, in the right Format menu, you can select the storage format.
Storage
Internal
External
Save to internal storage or USB storage.
When External is selected, save the waveform according to the current record
length (see " Record Length menu " on P53);
the file name is editable. The BIN waveform file could be open by waveform analysis software (on the supplied CD).
When the type is Configure , the menu shows as following:
Setting0
Configure
…..
Setting19
The setting address
Save
Load
Save the current oscilloscope configure to the internal storage
Recall the configure from the selected address
When the type is Image , the menu shows as following:
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4.Advanced User Guidebook
Save
Save the current display screen. The file can be only stored in a USB storage, so a
USB storage must be connected first. The file name is editable. The file is stored in
BMP format.
Save and Recall the Waveform
The oscilloscope can store 100 waveforms, which can be displayed with the current waveform at the same time. The stored waveform called out can not be adjusted.
In order to save the waveform of CH1, CH2 and Math into the address 1, the operation steps should be followed:
1.
Turn on CH1, CH2 and Math channels.
2.
Push the Save button.
3.
Saving : Select Type in the bottom menu, select Wave in the left menu.
4.
Select Storage in the bottom menu, select Internal in the right menu.
5.
Select Source in the bottom menu, check CH1 , CH2 , Math in the right menu for
Source.
6.
Select Object & Show in the bottom menu, select Wave1 as object address in the left menu.
7.
Select Save in the bottom menu to save the waveform.
8.
Recalling : Select Object & Show in the bottom menu, select Wave1 in the left menu. In the right menu, select Show as ON , the waveform stored in the address will be shown, the address number and relevant information will be displayed at the top left of the screen.
In order to save the waveform of CH1 and CH2 into the USB storage as a BIN file, the operation steps should be followed:
1.
Turn on CH1 and CH2 channels.
2.
Push the Save button.
3.
Saving : Select Type in the bottom menu, select Wave in the left menu.
4.
Select Storage in the bottom menu, select External in the right menu.
5.
Select Type in the bottom menu, select BIN in the right menu as the storage format.
6.
Select Source in the bottom menu, check CH1 , CH2 in the right menu for
Source.
7.
Select Save in the bottom menu, an input keyboard used to edit the file name will
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4.Advanced User Guidebook pop up. The default name is current system date and time. Select the the keyboard to confirm.
key in
8.
Recalling : The BIN waveform file could be open by waveform analysis software
(on the supplied CD).
Tip:
Whatever the Type of save menu is set, you can save the waveform by just pressing the Copy panel button in any user interface. If the Storage of the save menu is set as
" External ", you should install the USB disk. Please refer to the contents below to install the USB disk and name the file to be saved.
Save the current screen image:
The screen image can only be stored in USB disk, so you should connect a USB disk with the instrument.
1.
Install the USB disk : Insert the USB disk into the " USB Host port
appears on the top right of the screen, the USB disk is installed successfully. If the USB disk cannot be recognized, format the
USB disk according to the methods in " USB disk Requirements " on P60.
2.
After the USB disk is installed, push the Save panel button, the save menu is displayed at the bottom of the screen.
3.
Select Type in the bottom menu, select Image in the left menu.
4.
Select Save in the bottom menu, an input keyboard used to edit the file name will pop up. The default name is current system date and time. Select the key in the keyboard to confirm.
USB disk Requirements
The supported format of the USB disk: FAT32 file system, the allocation unit size cannot exceed 4K, mass storage USB disk is also supported. If the USB disk doesn't work properly, format it into the supported format and try again. Follow any of the following two methods to format the USB disk: using system-provided function and using the formatting tools. (The USB disk of 8 G or 8 G above can only be formatted using the second method – using the formatting tools.)
Use system-provided function to format the USB disk
1.
Connect the USB disk to the computer.
2.
Right click Computer -
Manage to enter Computer Management interface.
3.
Click Disk Management menu, and information about the USB disk will display on the right side with red mark 1 and 2.
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4.Advanced User Guidebook
Figure 4-6: Disk Management of computer
4.
Right click 1 or 2 red mark area, choose Format . And system will pop up a warning message, click Yes .
Figure 4-7: Format the USB disk warning
5.
Set File System as FAT32, Allocation unit size 4096. Check " Perform a quick format " to execute a quick format. Click OK , and then click Yes on the warning message.
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4.Advanced User Guidebook
Figure 4-8: Formatting the USB disk setting
6.
Formatting process.
Figure 4-9: Formatting the USB disk
7.
Check whether the USB disk is FAT32 with allocation unit size 4096 after formatting.
Use Minitool Partition Wizard to format
Download URL: http://www.partitionwizard.com/free-partition-manager.html
Tip: There are many tools for the USB disk formatting on the market, just take
Minitool Partition Wizard for example here.
1.
Connect the USB disk to the computer.
2.
Open the software Minitool Partition Wizard.
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4.Advanced User Guidebook
3.
Click Reload Disk on the pull-down menu at the top left or push keyboard F5, and information about the USB disk will display on the right side with red mark 1 and 2.
Figure 4-10: Reload Disk
4.
Right click 1 or 2 red mark area, choose Format .
Figure 4-11: Choose format
5.
Set File System FAT32, Cluster size 4096. Click OK .
Figure 4-12: Format setting
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4.Advanced User Guidebook
6.
Click Apply at the top left of the menu. Then click Yes on the pop-up warning to begin formatting.
7.
Formatting process
Figure 4-13: Apply setting
Figure 4-14: Format process
8.
Format the USB disk successfully
Figure 4-15: Format successfully
How to Record/Playback Waveforms
Push Save button. Select Type in the bottom menu, in the left menu, turn the M knob to select Record .
Wave Record function can record the input current wave. You can set the interval between recorded frames in the range of 10 ms - 10 s. The max frame number reaches
1000, and you can get better analysis effect with playback and storage function. The
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4.Advanced User Guidebook storage medium contains two kinds: Internal and External.
When the storage medium is Internal, Wave Record contains four modes: OFF ,
Record , Playback and Storage .
When storage medium is External, Wave Record contains two modes: OFF, Record.
Record : To record wave according to the interval until it reaches the end frame set.
Record menu (Internal Storage) shows as follows:
Menu
Mode
Record mode
FrameSet
Setting
OFF
Record
Playback
Storage
End frame
Set record menu
Set playback menu
Set storage menu
Instruction
Close wave record function
Turn the M knob to select the number of frames to record (1 - 1000)
Refresh
Operate
Interval
ON
OFF
Play
Stop
Turn the M knob to select the interval between recorded frames (10ms - 10s)
Refresh wave during recording
Stop refreshing
Begin to record
Stop recording
Note :
Both of the waveforms of Channel 1 and Channel 2 will be recorded. If a Channel is turned off while recording, the waveform of the channel is invalid in the playback mode.
Playback : Play back the wave recorded or saved.
Playback menu shows as follows:
Menu
Playback Mode
FrameSet
Setting
Start frame
End frame
Cur frame
Interval
Instruction
Turn the M knob to select the number of start frame to playback (1 - 1000)
Turn the M knob to select the number of end frame to playback (1 - 1000)
Turn the M knob to select the number of current frame to playback (1 - 1000)
Turn the M knob to select the interval between played back frames (10ms - 10s)
Play mode
Operate
Loop
Once
Play
Stop
Play back the wave continuously
Play back the wave just one time
Begin to record
Stop recording
Storage : Save the current wave according to the start frame and end frame set.
Storage menu shows as follows:
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4.Advanced User Guidebook
Menu
Storage
Mode
Frame Set
Setting
Start frame
End frame
Instruction
Turn the M knob to select the number of start frame to store (1 - 1000)
Turn the M knob to select the number of end frame to store (1 - 1000)
Save
Load
Save the waveform record file to the internal memory
Load the waveform record file from the memory
To use wave record function, do as follows:
(1) Push Save button.
(2) Select Type in the bottom menu, in the left menu, turn the M knob to select
Record .
(3) Select Mode in the bottom menu, select OFF in the right menu.
(4) In the bottom menu, select Storage as Internal .
(5) Select Mode in the bottom menu, select Record in the right menu.
(6) Select FrameSet in the bottom menu, set End frame and Interval in the right menu.
(7) In the bottom menu, set Refresh .
(8) In the bottom menu, select Operate as Play .
(9) Select Mode in the bottom menu, select Playback in the right menu. Set
FrameSet and Playmode , select Operate as Play .
(10) To save the wave recorded, select Mode in the bottom menu, select Storage in the right menu. Select FrameSet in the bottom menu to set the range of frames to store, select Save in the bottom menu.
(11) To load the waveform from the internal memory, select Load in the bottom menu, then enter the Playback of the Mode to analyze the wave.
Note: When playbacking the waveform, the sampling, trigger, or display function is not available.
When storage medium is External, Wave Record contains two modes: OFF,
Record.
Record menu (External Storage) shows as follows:
Menu
Mode
Record mode
FrameSet
Refresh
Setting
OFF
Record
End frame
Instruction
Close wave record function
Set record menu
Turn the M knob to select the number of frames to record (1 – 900,000)
Interval
Turn the M knob to select the interval between recorded frames (10ms - 10s)
Infinity Record infinitely until the storage medium is full
ON Refresh wave during recording
OFF Stop refreshing
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4.Advanced User Guidebook
Operate
Play
Stop
Begin to record
Stop recording
Note :
Both of the waveforms of Channel 1 and Channel 2 will be recorded. If a Channel is turned off while recording, the waveform of the channel is invalid in the playback mode.
To use wave record to external, do as follows:
1.
Push Save button.
2.
Select Type in the bottom menu, in the left menu, turn the M knob to select
Record .
3.
Select Mode in the bottom menu, select OFF in the right menu.
4.
In the bottom menu, select Storage as External .
5.
Select Mode in the bottom menu, select Record in the right menu.
6.
Select FrameSet in the bottom menu, set End frame and Interval in the right menu. If you want to record wave to external infinitely, select Infinity in the right menu, the End frame will display “-”.
7.
In the bottom menu, set Refresh .
8.
In the bottom menu, select Operate as Play .
Connect external device to the computer, and wave_record_0.bin is the recorded file. Open the software, and do as follows to play back the waveform.
1.
Choose Communications
Auto Player.
2.
Transform recording waveform from machine.
3.
Add the well transformed files.
4.
Set play mode and time delay.
5.
Click the green button on the left corner to begin playing back the waveform.
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4.Advanced User Guidebook
Figure 4-16: Play back waveform by software
How to Clone and Recall a waveform
Push Save button. Select Type in the bottom menu, in the left menu, turn the M knob to select Clone .
You can clone one or two channel waveforms between two cursors, and save it as a cloned waveform into the internal memory or a USB memory device. You can save four cloned waveforms in the instrument internal memory. The cloned waveform files saved to a USB memory device are saved with the extension "ota".
If the optional Arbitrary Function Generator is available in your instrument, you can output the stored waveform from a file in the internal memory or in a USB memory device; and the waveform between two cursors can be output directly without save operation.
Clone Wave menu shows as follows:
Menu
Type
Setting Instruction
Clone Select the clone function.
Mode
Out1
Out2
Select the source mode.
The cloned waveform includes one waveform, which will be used for AG Out1
The cloned waveform includes one waveform, which will be used for AG Out2
The cloned waveform includes two waveforms, which will be used for AG Out1 and AG Out2
Source
Out1&Out2
AG Output
Out1
CH1 CH2
CH3 CH4
Select the source, which will be used for AG Out1
AG Output
Out2
CH1 CH2
CH3 CH4
Select the source, which will be used for AG Out2
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Line
Clone
(When the generator is available)
Save
4.Advanced User Guidebook a b ab x
Clone
Turn the M knob to move line a.
Turn the M knob to move line b.
Two cursors are linked. Turn the M knob to move the pair of cursors.
Set the cursors to select the entire screen automatically.
The waveform information is displayed at the left bottom corner of the screen.
Time
Frequency
Length
Note : If " Out Of Limits " appears in the information or a message " Waveform points beyond the limit.
" appears on the screen, that means the length of the cloned waveform exceeds the limit. When the source mode is
Out1 or Out2, the maximum length is 2M; When the source mode is Out1&Out2, the maximum length is 1M.
Push the Acquire button, select Length in the bottom menu, and set the record length to a smaller value.
Clone the waveform between two cursors, and output it through the built-in generator.
Save Save the waveform between two cursors
You can select one of the four objects in the left list. When selecting a object, a message will appear in the screen center, show the information of the selected object.
"Current object: Out1 have no output,
Out2 have no output" means no waveform is stored in this object.
Storage Internal
"Current object: Out1 have output, Out2 have no output" means one waveform is stored in this object, its source mode is Out1.
"Current object: Out1 have no output,
Out2 have output" means one waveform is stored in this object, its source mode is Out2.
"Current object: Out1 have output, Out2 have output" means t wo waveforms are stored in this object, its source mode is Out1&Out2.
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Output
Save the waveform onto a USB memory device
Insert a USB memory device into the port on the front panel. If the icon appears on the top right of the screen, the USB memory
External device is installed successfully. If the USB memory device cannot be recognized, format the USB memory device according to the
methods in " USB disk Requirements " on P60.
The name is default as current system date and time. The cloned waveform will be saved onto the USB memory device as a OTA file.
(Generator is available and internal storage is selected)
Output the waveform stored in the selected object.
The following steps take the oscilloscope with dual-channel AG for instance.
To save the CH1 waveform and save to the internal/USB memory:
(1) Push Save button.
(2) Select Type in the bottom menu, turn the M knob to select Clone in the left menu.
(3) Select Source in the bottom menu, select Mode as Out1 . in the right menu.
(4) Select AG Output Out1 as CH1 . in the right menu.
(5) Select Line in the bottom menu. If a or b is selected, turn the M knob to move the cursor. If ab is selected, turn the M knob to move the pair of cursors. If x is selected, the entire screen will be selected automatically.
(6) Select Save in the bottom menu.
To save the waveform to internal memory , select Storage in the right menu as Internal . Turn the M knob to select an object in the left menu, select Save in the right menu.
To save the waveform onto a USB memory device , select Storage in the right menu as External . Select Save in the right menu. An input keyboard used to edit the file name will pop up. Turn the M knob to select the keys, push the knob to input. Select the key in the keyboard to confirm. The cloned waveform will be saved onto the USB memory device as a OTA file.
To output the waveform stored in the internal memory through the generator:
(The generator is optional.)
(1) Push Save button.
(2) Select Type in the bottom menu, turn the M knob to select Clone in the left menu.
(3) Select Save in the bottom menu, select Storage as Internal in the right menu.
(4) Turn the M knob to select an object in the left menu.
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(5) Select Output in the right menu.
To output the waveform stored in the USB memory device through the generator:
(The generator is optional.)
(1) Push button to set the output channel of the generator.
(2) Select Arb in the bottom menu, select Others in the right menu, and select File
Browse .
(3) select Memory in the right menu as USB . The instrument lists a directory of the folders and files on the USB memory device. Select a folder or file using the M knob to scroll up and down the list. To enter the current folder, select Change Dir in the right menu, select it again to return to the upper directory.
(4) Select the desired ota file, select Read in the right menu.
To output the CH1 and CH2 waveforms through the generator directly:
(The generator is optional.)
(1) Push Save button.
(2) Select Type in the bottom menu, turn the M knob to select Clone in the left menu.
(3) Select Source in the bottom menu, select Mode as Out1&Out2 in the right menu.
(4) In the right menu, select AG Output Out1 as CH1 ; select AG Output Out2 as
CH2 .
(5) Select Line in the bottom menu. Select the cursor and move it to select the desired waveform.
(6) Select Clone in the bottom menu. The generator will output the waveform between two cursors.
Data format description of OTA waveform file
If the source mode is set to Out1 or Out2, OTA file consists of two parts: the file header and the channel data. If the source mode is set to Out1&Out2, OTA file consists of three parts: file header, the first channel data, and the second channel data. The file header represents the parameter of file data, which is expressed in "parameter name + value". Each parameter name is a case-sensitive string of 4 bytes. The parameter value is at least 4 bytes.
1.Format description of the file header:
1) HEAD
Parameter name Meaning
HEAD Header size
2) TYPE
Parameter name Meaning
TYPE
3) BYTE
Model
Value
4 bytes int
Comment
Value
12 bytes char
Comment
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4.Advanced User Guidebook
Parameter name Meaning
BYTE Data length in bit
4) SIZE
Parameter name Meaning
SIZE File size
Value
4 bytes int
Value
4 bytes int
Comment
Comment
Used to check the file integrity
5) VOLT
Parameter name Meaning
VOLT Voltage division, divided by 400 is
ADC resolution.
(When the source mode is Out1&Out2, it is the first channel voltage division.)
6) SAMP
Parameter name Meaning
SAMP Sample rate
7) ADCB
Parameter name Meaning
ADCB ADC bit, ADC resolution
Value
4 bytes float
Value
4 bytes float
Value
4 bytes int
8) CHAN
Parameter name Meaning
CHAN
Value
Number of channels 4 bytes int
9) VOL2
Parameter name Meaning
VOL2 Voltage division, divided by 400 is
ADC resolution.
(When the source mode is Out1&Out2, it is the second channel voltage division.)
Value
4 bytes float
2.Data
Comment
The value indicates voltage
(the unit is mV), such as 200 mV.
Comment
The unit is Sa/s.
Comment
8-bit or 12-bit
Comment
1 or 2
Comment
The value indicates voltage
(the unit is mV), such as 200 mV.
The data type is signed integer. You can determine the data type ( char , short int or int) based on the BYTE parameter. The valid range is determined by the ADCB parameter, e.g. the valid range for 8-bit ADC is -127 to +127.
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4.Advanced User Guidebook
How to Implement the Auxiliary System Function Setting
●
Config
Push the Utility button, select Function in the bottom menu, select Configure in the left menu.
The description of Configure Menu is shown as the follows:
Function Menu
Language
Set Time
KeyLock
About
Setting Description
Choose the display language of the operating system.
Display
ON
OFF
On/Off the date display
Hour Min Setting Hour/Minute
Day Month Setting Date/Month
Year Setting Year
Lock all keys. Unlock method: push Trigger
Menu button in trigger control area, then push
Force button, repeat 3 times.
Version number and serial number showing
●Display
Push the Utility button, select Function in the bottom menu, select Display in the left menu.
The description of Display Menu is shown as the follows:
Function Menu
BackLight
Setting Description
0% - 100% Turn the M knob to adjust the backlight.
Graticule Select the grid type
Battery
ON
OFF
Turn on or off the battery display
OFF, 5s - 30s Set the disappear time of menu Menu Time
●
Adjust
Push the Utility button, select Function in the bottom menu, select Adjust in the left menu.
The description of Adjust Menu is shown as the follows:
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4.Advanced User Guidebook
Function Menu Description
Self Cal Carry out the self-calibration procedure.
Default
ProbeCh.
Call out the factory settings.
Check whether probe attenuation is good.
Do Self Cal (Self-Calibration)
The self-calibration procedure can improve the accuracy of the oscilloscope under the ambient temperature to the greatest extent. If the change of the ambient temperature is up to or exceeds 5 ℃ , the self-calibration procedure should be executed to obtain the highest level of accuracy.
Before executing the self-calibration procedure, disconnect all probes or wires from the input connector. Push the Utility button, select Function in the bottom menu, the function menu will display at the left, select Adjust . If everything is ready, select Self Cal in the bottom menu to enter the self-calibration procedure of the instrument.
Probe checking
To check whether probe attenuation is good. The results contain three circumstances:
Overflow compensation, Good compensation, Inadequate compensation. According to the checking result, users can adjust probe attenuation to the best. Operation steps are as follows:
1.
Connect the probe to CH1, adjust the probe attenuation to the maximum.
2.
Push the Utility button, select Function in the bottom menu, select Adjust in the left menu.
3.
Select ProbeCh. in the bottom menu, tips about probe checking shows on the screen.
4.
Select ProbeCh.
again to begin probe checking and the checking result will occur after 3s; push any other key to quit.
●
Pass/Fail
The Pass/Fail function monitors changes of signals and output pass or fail signals by comparing the input signal that is within the pre-defined mask.
Push the Utility button, select Function in the bottom menu, select Pass/fail in the left menu.
Function Menu Setting Description operate
Enable
Operate
Pass
Control enable switch
Control operate switch
Signal tested corresponds with the rule
Output
Fail
Beep
Stop
Info
Signal tested not correspond with the rule
Beep when it satisfies the rule
Stop once satisfying the rule
Control the display status of info frame
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4.Advanced User Guidebook
Rule
Source
Horizontal
Vertical
Create
Select the source as CH1, CH2, CH3 or CH4
Change the Horizontal tolerance value by turning the
M knob
Change the Vertical tolerance value by turning the M knob
Use the rule set as testing rule
SaveRule
Number
Save
Load
Select any one from Rule1 - Rule8 as your rule name
Select Save to save the rule
Load some rule as the testing rule
The description of Pass/fail Menu is shown as the follows:
Pass/Fail test:
Detect whether the input signal is within the limits of the rule, if it exceeds limits of the rule, it is "Fail"; otherwise it is "Pass". Also it can output fail or pass signal by built-in and configurable output port. To run the test, read the following steps:
1.
Push the Utility button, select Function in the bottom menu, select Pass/fail in the left menu.
2.
Enable switch on : Select Operate in the bottom menu, select Enable in the right menu as ON .
3.
Create rule : Select Rule in the bottom menu. Select Source in the right menu, select the source in the left menu. Set Horizontal tolerance and Vertical tolerance in the right menu. Select Create in the right menu to create the rule.
4.
Set output type : Select Output in the bottom menu to enter output option setting.
Choose any one or two of the options " Pass ", " Fail " or " Beep ". " Pass " and " Fail " are mutually exclusive options, which could not be chosen simultaneously. " Stop " means stop once the condition satisfies your setting.
5.
Begin to test: Select Operate in the bottom menu, select Operate in the right menu as Start , the test will begin.
6.
Save rule: Select SaveRule in the bottom menu. Select the save location in the left menu, and then select Save in the right menu to save the rules, which could be called up at once when need. Select Load to call up the rule saved.
Note:
1.
When Pass/Fail is ON, if XY or FFT is ready to run, then Pass/Fail will be closed; under the mode of XY or FFT, Pass/Fail is unable.
2.
Under the mode of Factory, Auto Scale and Auto Set, Pass/Fail will be closed.
3.
When no save setting left in the rule save, tip will be given to show "NO RULE
SAVED".
4.
Under the status of stop, data comparing will stop, and when it goes on running, the number of Pass/Fail will increase from the former number, not from zero.
5.
When the waveform playback mode is on, Pass/Fail is used to test the played-back waveform specially.
●
Output
Push the Utility button, select Function in the bottom menu, select Output in the left menu.
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4.Advanced User Guidebook
Output menu item in the bottom menu sets the output type of Trig Out(P/F) port on
Rear Panel . In the bottom menu, select
Output . The description of Output menu is shown as the follows:
Function
Menu
Setting Description
Type
Trig level Output trig signal synchronously
Pass/fail Output High Level when Pass , and Low Level when Fail
AG
Output
CH2 Output of dual-channel waveform generator
(optional)
Device and Print Setup
menu items set the print output, refer to " How to Print the
●
LAN Set
Using the LAN port, the oscilloscope can be connected with a computer.
●
Update
Use the front-panel USB port to update your instrument firmware using a USB
memory device. Refer to " How to Update your Instrument Firmware " on page 76.
●
FRA (Frequency Response Analysis)
If there is a built-in arbitrary function generator (optional), you can use the frequency
response analysis. Refer to " Frequency Response Analysis " on page 97.
How to Update your Instrument Firmware
Use the front-panel USB port to update your instrument firmware using a USB memory device.
USB memory device requirements : Insert a USB memory device into the USB port on the front panel. If the icon appears on the top right of the screen, the USB memory device is installed successfully. If the USB memory device cannot be
detected, format the USB memory device according to the methods in " USB disk
Caution : Updating your instrument firmware is a sensitive operation, to prevent damage to the instrument, do not power off the instrument or remove the USB memory device during the update process.
To update your instrument firmware, do the following:
1.
Push the Utility button, select Function in the bottom menu, select Configure in the left menu, select About in the bottom menu. View the model and the currently
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4.Advanced User Guidebook installed firmware version.
2.
From a PC, visit the website and check if the website offers a newer firmware version. Download the firmware file. The file name must be *.update. The file name can be up to 15 characters long (including the suffix). Copy the firmware file onto your USB memory device.
3.
Insert the USB memory device into the front-panel USB port on your instrument.
4.
Push the Utility button, select Function in the bottom menu, select Update in the left menu.
5.
Select Open in the bottom menu, the instrument lists a directory of the folders on the USB memory device. Turn the M knob to select a folder, select Open in the bottom menu to enter the folder. Navigate to the folder where the firmware file is, and select the file with the .update suffix.
6.
In the bottom menu, select Open , the messages below will be shown.
7.
In the bottom menu, select Start again, the interfaces below will be displayed in sequence. The update process will take up to three minutes. After completion, the instrument will be shut down automatically.
8.
Long press the button to power on the instrument.
How to Measure Automatically
Push the Measure button to display the menu for the settings of the Automatic
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4.Advanced User Guidebook
Measurements. At most 8 types of measurements could be displayed on the bottom left of the screen.
The oscilloscopes provide 31 parameters for auto measurement, including Period,
Frequency, Mean, PK-PK, RMS, Max, Min, Top, Base, Amplitude, Overshoot,
Preshoot, Rise Time, Fall Time, +PulseWidth, -PulseWidth, +Duty Cycle, -Duty
Cycle,
Delay A→B , Delay A→B , Cycle RMS, Cursor RMS, Screen Duty,
Phase
A→B
, Phase
A→B
, +PulseCount, -PulseCount, RiseEdgeCnt,
FallEdgeCnt, Area, and Cycle Area.
The "Automatic Measurements" menu is described as the following table:
Function Menu
Meas Type
(left menu)
Add
Source
CH1 CH2
CH3 CH4
Description
Select the measure types
Select the source
Remove
Add
Meas Type
(left menu)
Add the selected measure types (shown at the left bottom, you could only add 8 types at most)
Select the types need to be deleted.
The selected type and source are shown in the
Remove menu on the right.
Remove Remove the selected measure type
Snapshot
Source
Remove All Remove all the measures
ON
OFF
CH1
Show all the measures of the snapshot source
Turn off the snapshot
CH2
CH3
CH4
Select the snapshot source
Measure
Only if the waveform channel is in the ON state, the measurement can be performed.
The automatic measurement can not be performed in the following situation: 1) On the saved waveform. 2) On Waveform Math waveform. 3) On the Video trigger mode.
On the Scan format, period and frequency can not be measured.
Measure the period, the frequency of the CH1, following the steps below:
1. Push the Measure front panel button to show the Measure menu.
2. Select Add in the bottom menu.
3. In the left Type menu, turn the M knob to select Period .
4. In the right menu, select CH1 in the Source menu item.
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4.Advanced User Guidebook
5. In the right menu, select Add . The period type is added.
6. In the left Type menu, turn the M knob to select Frequency .
7. In the right menu, select CH1 in the Source menu item.
8. In the right menu, select Add . The frequency type is added.
The measured value will be displayed at the bottom left of the screen automatically
Figure 4-17 Automatic measurement
The automatic measurement of voltage parameters
The oscilloscopes provide automatic voltage measurements including Mean, PK-PK,
RMS, Max, Min, Vtop, Vbase, Vamp, OverShoot, PreShoot, Cycle RMS, and
Cursor RMS. Figure 4-18 below shows a pulse with some of the voltage
measurement points.
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4.Advanced User Guidebook
Figure 4-18
Mean: The arithmetic mean over the entire waveform.
PK-PK: Peak-to-Peak Voltage.
RMS: The true Root Mean Square voltage over the entire waveform.
Max: The maximum amplitude. The most positive peak voltage measured over the entire waveform.
Min: The minimum amplitude. The most negative peak voltage measured over the entire waveform.
Vtop: Voltage of the waveform's flat top, useful for square/pulse waveforms.
Vbase: Voltage of the waveform's flat base, useful for square/pulse waveforms.
Vamp: Voltage between Vtop and Vbase of a waveform.
OverShoot: Defined as (Vmax-Vtop)/Vamp, useful for square and pulse waveforms.
PreShoot: Defined as (Vmin-Vbase)/Vamp, useful for square and pulse waveforms.
Cycle RMS: The true Root Mean Square voltage over the first entire period of the waveform.
Cursor RMS: The true Root Mean Square voltage over the range of two cursors.
The automatic measurement of time parameters
The oscilloscopes provide time parameters auto-measurements include Period,
Frequency, Rise Time, Fall Time, +D width, -D width, +Duty, -Duty, Delay
A→B , Delay A→B , Screen Duty , Phase A→B , and Phase A→B .
Figure 4-19 shows a pulse with some of the time measurement points.
Figure 4-19
Rise Time: Time that the leading edge of the first pulse in the waveform takes to rise from 10% to 90% of its amplitude.
Fall Time: Time that the falling edge of the first pulse in the waveform takes to fall from 90% to 10% of its amplitude.
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4.Advanced User Guidebook
+D width: The width of the first positive pulse in 50% amplitude points.
-D width: The width of the first negative pulse in the 50% amplitude points.
+Duty: +Duty Cycle, defined as +Width/Period.
-Duty: -Duty Cycle, defined as -Width/Period.
Delay
A→B
: The delay between the two channels at the rising edge.
Delay
A→B
: The delay between the two channels at the falling edge.
Screen Duty: Defines as (the width of the positive pulse)/(Entire period)
Phase
A→B
: Phase difference calculated according to " Delay
A→B " and the period of source A, expressed in degree. The calculation formula is as shown below:
Phase
A→B = (Delay A→B ÷ Period of source A) × 360 °
Phase
A→B
: Phase difference calculated according to " Delay
A→B " and the period of source A, expressed in degree. The calculation formula is as shown below:
Phase
A→B = (Delay A→B ÷ Period of source A) × 360 °
Other measurements
+PulseCount : The number of positive pulses that rise above the mid reference crossing in the waveform.
-PulseCount : The number of negative pulses that fall below the mid reference crossing in the waveform.
RiseEdgeCnt : The number of positive transitions from the low reference value to the high reference value in the waveform.
FallEdgeCnt
: The number of negative transitions from the high reference value to the low reference value in the waveform.
Area : The area of the whole waveform within the screen and the unit is voltage-second. The area measured above the zero reference (namely the vertical offset) is positive; the area measured below the zero reference is negative. The area measured is the algebraic sum of the area of the whole waveform within the screen.
Cycle Area : The area of the first period of waveform on the screen and the unit is voltage-second. The area above the zero reference (namely the vertical offset) is positive and the area below the zero reference is negative. The area measured is the algebraic sum of the area of the whole period waveform.
Note: When the waveform on the screen is less than a period, the period area measured is 0.
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How to Measure with Cursors
Push the Cursor button to turn cursors on and display the cursor menu. Push it again to turn cursors off.
The Cursor Measurement for normal mode:
The description of the cursor menu is shown as the following table:
Function
Menu
Setting Description
Type
Voltage
Time
Time&Voltage
AutoCursr
Display the voltage measurement cursor and menu.
Display the time measurement cursor and menu.
Display the time and voltage measurement cursor and menu.
The horizontal cursors are set as the intersections of the vertical cursors and the waveform
Line Type
(Time&Vol tage type)
Window
(Wave zoom mode)
Time
Voltage
Main
Extension
Makes the vertical cursors active.
Makes the horizontal cursors active.
Measure in the main window.
Measure in the extension window.
Line
Source a b ab
CH1 to CH4
Turn the M knob to move line a.
Turn the M knob to move line b.
Two cursors are linked. Turn the M knob to move the pair of cursors.
Display the channel to which the cursor measurement will be applied.
Perform the following operation steps for the time and voltage cursor measurement of the channel CH1:
1.
Push Cursor to display the cursor menu.
2.
Select Source in the bottom menu, select CH1 in the right menu.
3.
Select the first menu item in the bottom menu, the Type menu will display at the right of the screen. In the right menu, select Time&Voltage for Type, two blue dotted lines displayed along the horizontal direction of the screen, two blue dotted lines displayed along the vertical direction of the screen.
Cursor measure window at the left bottom of the screen shows the cursor readout.
4.
In the bottom menu, select Line Type as Time to make the vertical cursors active. If the Line in the bottom menu is select as a , turn the M knob to move line a to the right or left. If b is selected, turn the M knob to move line b.
5.
In the bottom menu, select Line Type as Voltage to make the horizontal cursors active. Select Line in the bottom menu as a or b , turn the M knob to
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4.Advanced User Guidebook move it.
6.
Push the Horizontal HOR button to enter wave zoom mode. In the bottom cursor menu, select Window as Main or Extension to make the cursors shown in the main window or zoom window.
Figure 4-20 Time&Voltage Cursor Measurement
Auto Cursor
For the AutoCursr type, the horizontal cursors are set as the intersections of the vertical cursors and the waveform.
Figure 4-21 Auto Cursor
The Cursor Measurement for FFT mode
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4.Advanced User Guidebook
In FFT mode, push the Cursor button to turn cursors on and display the cursor menu.
The description of the cursor menu in FFT mode is shown as the following table:
Function
Menu
Setting Description
Vamp (or Phase)
Display the Vamp (or Phase) measurement cursor and menu.
Display the Freq measurement cursor and menu. Freq
Type
Freq&Vamp
(or Freq&Phase)
AutoCursr
Display the corresponding measurement cursor and menu.
The horizontal cursors are set as the intersections of the vertical cursors and the waveform
Line Type
(Freq&Vamp or
Freq&Phase type)
Window
(Wave zoom mode)
Freq
Vamp (or Phase) Makes the horizontal cursors active.
Main
Extension
Makes the vertical cursors active.
Measure in the main window.
Measure in the FFT extension window.
Line
Source a b ab
Math FFT
Turn the M knob to move line a.
Turn the M knob to move line b.
Two cursors are linked. Turn the M knob to move the pair of cursors.
Display the channel to which the cursor measurement will be applied.
Perform the following operation steps for the amplitude and frequency cursor measurement of math FFT:
1.
Press the Math button to display the math menu in the bottom. Select FFT .
In the right menu, select Format . In the left menu, turn the M knob to select amplitude unit ( V RMS or Decibels ).
2.
Push Cursor to display the cursor menu.
3.
In the bottom menu, select Window as Extension .
4.
Select the first menu item in the bottom menu, the Type menu will display at the right of the screen. In the right menu, select Freq&Vamp for Type, two blue dotted lines displayed along the horizontal direction of the screen, two blue dotted lines displayed along the vertical direction of the screen. Cursor measure window at the left bottom of the screen shows the cursor readout.
5.
In the bottom menu, select Line Type as Freq to make the vertical cursors active. If the Line in the bottom menu is select as a , turn the M knob to move line a to the right or left. If b is selected, turn the M knob to move line b.
6.
In the bottom menu, select Line Type as Vamp to make the horizontal
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4.Advanced User Guidebook cursors active. Select Line in the bottom menu as a or b , turn the M knob to move it.
7.
In the bottom cursor menu, you can select Window as Main to make the cursors shown in the main window.
How to Use Autoscale
This is a very useful function for first time users to carry out a simple and quick test on the input signal. The function is applied to follow-up signals automatically even if the signals change at any time. Autoscale enables the instrument to set up trigger mode, voltage division and time scale automatically according to the type, amplitude and frequency of the signals.
The menu is as follows:
Function Menu Setting Instruction
Autoscale
ON
OFF
Turn on
Turn off
Autoscale.
Autoscale.
Follow-up and adjust both vertical and horizontal settings.
Mode Follow-up and only adjust horizontal scale.
Follow-up and only adjust vertical scale.
Wave
Show Multi-period waveforms.
Only show one or two periods.
To measure the signal using autoscale, you can do as the follows:
1.
Push the Autoscale button, the function menu will appear.
2.
In the bottom menu, select ON in the Autoscale menu item.
3.
In the bottom menu, Select Mode . In the right menu, select
4.
In the bottom menu, Select Wave . In the right menu, select
Then the wave is displayed in the screen, shown as Figure 4-22 .
.
.
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4.Advanced User Guidebook
Figure 4-22 Autoscale Horizontal-Vertical multi-period waveforms
Note :
1.
When entering into Autoscale function, a autoscale indicator will be flickering on the top left of the screen.
2.
In the mode of Autoscale, the oscilloscope can self-estimate Trigger Mode (Edge,
Video). At this point, the trigger menu is not available.
3.
When the input signal contains the DC component, the coupling will be set to AC, the amplitude of the input signal should be greater than 5mV, and the frequency should be greater than 20Hz.
4.
At the mode of Autoscale, DSO is always set as DC coupling with AUTO triggering, the holdoff is set to 100ns.
5.
At the mode of Autoscale, if adjust the vertical position, voltage division, trigger level or time scale, the oscilloscope will pause the Autoscale function. To resume
Autoscale, push the Autoset front panel button.
6.
When video triggering, the horizontal time scale is 50us.
7.
While the Autoscale is working, the settings below will be made forcibly:
The DSO will switch from the wave zoom mode to the normal mode.
In the decoding, pass/fail or XY mode, when entering into Autoscale, these modes will be turned off.
In the STOP status, when entering into Autoscale, the status will be set to RUN.
How to Use Built-in Help
1.
Push Help button, the catalog will display in the screen.
2.
In the bottom menu, press Prev Page or Next Page to choose help topic, or just turn the M knob to choose.
3.
Press OK to view the details about the topic, or just push the M knob.
4.
Press Quit to exit the help, or just do other operations.
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4.Advanced User Guidebook
How to Use Executive Buttons
Executive Buttons include Autoset, Run/Stop, Single, Copy .
Autoset
It's a very useful and quick way to apply a set of pre-set functions to the incoming signal, and display the best possible viewing waveform of the signal.
The details of functions applied to the signal when using Autoset are shown as the following table:
Function Items Setting
Channel Coupling DC
Vertical Scale Adjust to the proper division.
Vertical Position Adjust to the proper position.
Bandwidth Full
Horizontal Level Middle
Horizontal Sale
Trigger Type
Trigger Source
Adjust to the proper division
Slope or Video
The previous source before autoseting.
When the previous source has no input signal, the source will be set to the minimum channel which has input signal.
When all the channels have no input signal, the source will be set to CH1.
Trigger Coupling DC
Trigger Slope Rising edge
Trigger Level
Trigger Mode
3/5 of the Vpk-pk
Auto
Display Format
Force
YT
Stop
Help
Pass/Fail
Inverted
Zoom Mode
Exit
Off
Off
Exit
Record Length
Waveform Math or
If greater than 10M, it will be set to 10M
Off
FFT
Waveform Record Off
Slow-scan
Persist
Off
Off
Note: When the autoscale is turned on and running, the Autoset button is invalid.
Judge waveform type by Autoset
Five kinds of types: Sine, Square, video signal, DC level, Unknown signal.
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4.Advanced User Guidebook
Menu as follow:
Sine: ( Multi-period, Single-period, FFT, Cancel Autoset )
Square: ( Multi-period, Single-period, Rising Edge, Falling Edge, Cancel Autoset )
Video signal:
DC level, Unknown signal:
Description for some icons:
Multi-period ： To display multiple periods
Single-period
：
To display single period
FFT ： Switch to FFT mode
Rising Edge ： Display the rising edge of square waveform
Falling Edge ： Display the falling edge of square waveform
Cancel Autoset ： Go back to display the upper menu and waveform information
Note : The Autoset function requires that the frequency of signal should be no lower than 20Hz, and the amplitude should be no less than 5mv. Otherwise, the Autoset function may be invalid.
Run/Stop:
Enable or disable sampling on input signals.
Notice: When there is no sampling at STOP state, the vertical division and the horizontal time base of the waveform still can be adjusted within a certain range, in other words, the signal can be expanded in the horizontal or vertical direction.
When the horizontal time base is ≤ 50ms, the horizontal time base can be expanded for 4 divisions downwards.
Single:
Push this button you can set the trigger mode as single directly, so when trigger occurs, acquire one waveform then stop.
Copy:
You can save the waveform by just pushing the Copy panel button in any user interface. The source wave and the storage location are according to
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4.Advanced User Guidebook the settings of the Save function menu when the Type is Wave . For more
details, please see " Save Function Menu " on P57.
How to Print the Screen Image
To print an image of what appears on the oscilloscope screen, do as the follows:
(1) Connect the printer to the USB Device port on the rear panel of the oscilloscope.
Note: The USB Device port supports PictBridge compatible printers.
(2) Push the Utility button, select Function in the bottom menu, select Output in the left menu.
(3) In the bottom menu, select Device as PICT . (When PC is selected, you can get an image by Oscilloscope software.)
(4) In the bottom menu, select Print Setup . In the right menu, set up print parameters.
The On selection of Ink Saver will print out a copy with a white background.
(5) Once you have connected a printer to your oscilloscope and set up print parameters, you can print current screen images with a single push of the Print button on the front panel.
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5.Use the Arbitrary Function Generator (Optional)
5.
Use the Arbitrary Function Generator
(Optional)
The function generator provides 4 basic waveforms (sine, square, ramp, and pulse) and 46 built-in arbitrary waveforms (Noise, Exponential rise, Exponential fall, Sin(x)/x, Staircase, etc.). You can create a user-definable waveform and save it to internal storage or USB device.
Output Connection
Push the Utility button, select Function in the bottom menu, select Output in the left menu. In the bottom menu, select Output , in the right menu, select AG Output .
Single-channel:
Connect the BNC cable to the port marked Out in the back of the oscilloscope.
Dual-channel:
Connect the BNC cable to the port marked Out 1 or Out 2 in the back of the oscilloscope.
Out 1 is the output of CH1, Out 2 is the output of CH2, also can be used as the port of trigger signal output & Pass/Fail output.
To see the output of the generator, connect the other end of the BNC cable to one of the input channels on the front of the oscilloscope.
To Set Channels
Single-channel:
Push to turn on/off the channel output. The indicator will be lighted when the corresponding channel is tuned on.
Dual-channel:
To Switch Channels in Menu Settings
Push button to switch between CH1 menu, CH2 menu, and Channel Copy menu.
To Turn On/Off Output of Channels
Push or to turn on/off output of the corresponding channel. The indicator will be lighted when the corresponding channel is tuned on.
Channel Copy menu
Push button to switch to Channel Copy menu.
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5.Use the Arbitrary Function Generator (Optional)
Copy Channel
Select CH2 To CH1 in the bottom menu to copy parameters of CH2 to CH1.
Select CH1 To CH2 in the bottom menu to copy parameters of CH1 to CH2.
Frequency Lock
Select Freq Lock in the bottom menu as On , the frequency of the two channels can be adjusted synchronously.
Amplitude Lock
Select Ampl Lock in the bottom menu as On , the amplitude of the two channels can be adjusted synchronously.
Align Phase
Select Align Phase in the bottom menu to align the initial phase of two channel signals.
To Set Signals
(1) Push (single-channel) or (dual-channel) button to show the bottom menu of generator.
(2) Select the desired waveform in the bottom menu, the corresponding menu is displayed on the right.
(3) The parameters can be set in the right menu.
To Output Sine Signals
The parameters of Sine waveform in the right menu are: Frequency/Period, Start Phase,
Amplitude/High Level, Offset/Low Level.
To Set the Frequency
Select Frequency in the right menu (if Frequency is not displayed, select Period and push it again to switch to Frequency ). Set the parameter in the right menu, see below.
Three methods to change the chosen parameter:
Turn the M knob to change the value of cursor position. Press / direction key to move the cursor.
Use the input keyboard : Push the M knob, an input keyboard will pop up. Turn the
M knob to move between the keys. Push the M knob to input the chosen key.
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5.Use the Arbitrary Function Generator (Optional)
Clear OK
Use the touchscreen :
Units
Click to increase the value of cursor position
Move the cursor
Click to decrease the value of cursor position
To Set the Period
Select Period in the right menu (if Period is not displayed, select Frequency and select it again to switch to Period ). Set the parameter in the right menu.
To Set the Start Phase
Select StartPhase in the right menu. Set the parameter in the right menu.
To Set the Amplitude
Select Amplitude in the right menu (if Amplitude is not displayed, select High Level and select it again to switch to Amplitude ). Set the parameter in the right menu.
To Set the Offset
Select Offset in the right menu (if Offset is not displayed, select Low Level and select it again to switch to Offset ). Set the parameter in the right menu.
To Set the High Level
Select High Level in the right menu (if High Level is not displayed, select Amplitude
92
5.Use the Arbitrary Function Generator (Optional) and select it again to switch to High Level ). Set the parameter in the right menu.
To Set the Low Level
Select Low Level in the right menu (if Low Level is not displayed, select Offset and select it again to switch to Low Level ). Set the parameter in the right menu.
To Output Square Signals
The parameters of Square waveform are: Frequency/Period, Start Phase, Amplitude/High
Level, Offset/Low Level.
To set the Frequency/Period, Start Phase, Amplitude/High Level, Offset/Low Level, please
refer to To Output Sine Signals on page 91.
To Output Ramp Signals
The parameters of Ramp waveform are: Frequency/Period, Start Phase, Amplitude/High
Level, Offset/Low Level, Symmetry.
To set the Frequency/Period, Start Phase, Amplitude/High Level, Offset/Low Level, please
refer to To Output Sine Signals on page 91.
To Set the Symmetry of Ramp
Select Symmetry in the right menu of Ramp. Set the parameter in the right menu.
To Output Pulse Signals
The parameters of Pulse waveform are: Frequency/Period, Start Phase, Amplitude/High
Level, Offset/Low Level, Width/Duty Cycle.
To set the Frequency/Period, Start Phase, Amplitude/High Level, Offset/Low Level, please
refer to To Output Sine Signals on page 91.
To Set the Pulse Width of Pulse
Select Width in the right menu (if Width is not displayed, select Duty Cycle and select it again to switch to Width ). Set the parameter in the right menu.
To Set the Duty Cycle of Pulse
Select Duty Cycle in the right menu (if Duty Cycle is not displayed, select Width and select it again to switch to Duty Cycle ). Set the parameter in the right menu.
To Output Arbitrary Signals
The menu items of Arbitrary waveform are: Frequency/Period, Start Phase,
Amplitude/High Level, Offset/Low Level, New, File Browse, Built-in. You can operate the menu by using the menu selection buttons on the right.
To set the Frequency/Period, Start Phase, Amplitude/High Level, Offset/Low Level, please
refer to To Output Sine Signals on page 91.
The Arbitrary signal consists of two types: the user-definable waveform and the system built-in waveform.
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5.Use the Arbitrary Function Generator (Optional)
Create a New Waveform
(1) Enter the operation menu: Push (single-channel) or (dual-channel) button. Select Arb in the bottom menu, select Others in the right menu, and select
New .
(2) Set the number of waveform points: Select Points in the right menu, turn the M knob to change the value, or use the input keyboard (push the M knob to show it) to input the value and choose the unit. X1 , X1000 , Xle6 , Xle9 in the keyboard respectively represent 1, 1000, 1000000, 1000000000. The waveform points range is
2 - 8192.
(3) Set the interpolation: Select Intrpl in the right menu, choose between On / Off . If you choose On , the points will be connected with beelines; otherwise, the voltages between two consecutive points will not change, and the waveform looks like a step-up one.
(4) Edit the waveform points : Select Edit Points in the right menu.
Select
Select
Point , input the number of the point to be edited.
Voltage , input the voltage for the current point.
Repeat the step above, set all the points to your needs.
Select Save , enter the file system.
If you want to save the waveform to internal memory, select Memory in the right menu as Internal . Turn the M knob to select a file from USER0 through USER31.
Select Save in the right menu.
Last modification time
File size
Waveform graph
If a USB device is connected, and you want to save the waveform to it, select
Memory in the right menu as USB . The instrument lists a directory of the folders and files on the USB memory device. Select a folder or file using the M knob to scroll up and down the list. To enter the current folder, select Change Dir in the right menu, select it again to return to the upper directory.
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5.Use the Arbitrary Function Generator (Optional)
Enter the desired storage path, select Save in the right menu, an input keyboard pops up, input the file name, choose in the keyboard to confirm. The waveform is saved as BIN file in the folder.
Note: The input length can have up to 35 characters.
Clear
Switch the case
Switch to symbol keyboard
Confirm
File Browse
To read a waveform stored in internal storage or USB device:
(1) Push (single-channel) or (dual-channel) button. Select Arb in the bottom menu, select Others in the right menu, and select File Browse .
(2) Select the desired waveform file in internal storage (FLASH) or USB device
(USBDEVICE).
(3) Select Read in the right menu.
Built-in Waveform
There are 46 built-in Arbitrary waveforms.
Steps for selecting the built-in waveform:
(1) Push (single-channel) or (dual-channel) button to show the bottom menu of generator.
(2) Select Arb in the bottom menu, select Others in the right menu, and select Built-in .
(3) Select Common , Math , Window or Others in the right menu. E.g. select Others to enter the following interface.
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5.Use the Arbitrary Function Generator (Optional)
(4) Turn the M knob to select the desired waveform (or touch). E.g. select Noise . Select
Select to output the noise waveform.
Note : For single-channel, you can push on the front panel to output DC.
Built-in Waveform Table
Name
Common
StairD
StairU
StairUD
Trapezia
RoundHalf
AbsSine
AbsSineHalf
SineTra
SineVer
NegRamp
AttALT
AmpALT
CPulse
PPulse
NPulse
Maths
ExpRise
ExpFall
Sinc
Tan
Cot
Sqrt
XX
HaverSine
Lorentz
Explanation
Stair-down waveform
Stair-up waveform
Stair-up and stair-down waveform
Trapezoid waveform
RoundHalf wave
Absolute value of a Sine
Absolute value of half a Sine
Sine transverse cut
Sine vertical cut
Negative ramp
Gain oscillation curve
Attenuation oscillation curve
Coded pulse
Positive pulse
Negative pulse
Exponential rise function
Exponential fall function
Sinc function
Tangent
Cotangent
Square root
Square function
HaverSine function
Lorentz function
96
ln
Cubic
Cauchy
Besselj
Bessely
Erf
Airy
Windows
Rectangle
Gauss
Hamming
Hann
Bartlett
Blackman
Laylight
Triang
Others
DC
Heart
Round
LFMPulse
Rhombus
Cardiac
Noise
5.Use the Arbitrary Function Generator (Optional)
Natural logarithm function
Cubic function
Cauchy distribution
BesselI function
BesselII function
Error function
Airy function
Rectangle window
Gauss distribution
Hamming window
Hanning window
Bartlett window
Blackman window
Laylight window
Triangle window (Fejer window)
DC signal
Heart signal
Round signal
Linear FM pulse
Rhombus signal
Cardiac signal
Noise signal
Frequency Response Analysis
The Frequency Response Analysis (FRA) feature controls the built-in waveform generator to sweep a sine wave across a range of frequencies while measuring the input to and output from a device under test. At each frequency, gain and phase are measured and plotted on a frequency response Bode chart. When the frequency response analysis completes, you can move a marker across the chart to see the measured gain and phase values at each frequency point. You can also adjust the chart's scale and offset settings for the gain and phase plots.
Note : If the signal is disturbed seriously, it is recommended to select Average in Acquire
Mode before running the analysis, the averages can only be set as 4 or 16, and then run the analysis.
Push the Utility button, select Function in the bottom menu, select FRA in the left menu.
The description of FRA Menu is shown as the follows:
Function
Menu
Setting Description
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5.Use the Arbitrary Function Generator (Optional)
FRA
Setup
Chart
Analysis
FRA
Check to enable FRA function and show FRA scale line and chart.
Transparent
Marker
When unchecked, FRA information is shown on the
FRA window.
When checked, FRA information is shown on the waveform display area.
Turn Multipurpose knob to move the marker, view measured gain and phase values.
Sweep Step
Fine
Input V
CH1
Output V
CH2
Min Freq
Fine
Max Freq
Fine
When unchecked, the sweep step is 0.1dB.
When checked, the sweep step is 0.01dB.
Input V is input from CH1.
Output V is input from CH2.
(Note: The menus are not for selecting menu items, only for showing information.)
Turn Multipurpose knob to set frequency sweep min value. Check to enable fine-tuning.
Turn Multipurpose knob to set frequency sweep max value. Check to enable fine-tuning.
Amplitude
Fine
Turn Multipurpose knob to set waveform generator amplitude. Check to enable fine-tuning.
Note: The amplitude range is 2 mVpp to 6 Vpp.
Gain Scale Adjust scale of gain plot, range from 5dB to 500dB.
Gain Offset
Adjust offset of gain plot, range from -250dB to
250dB.
Phase Scale Adjust scale of phase plot, range from 5° to 180°.
Phase Offset Adjust offset of phase plot, range from -180° to 180°.
Autoscale Autoscale gain and phase plots.
Run/stop the analysis.
F: Frequency; G: Gain; P: Phase.
To run the frequency response analysis, do the following:
1.
The waveform generator output is connected to a device under test. The input to the device is probed by CH1of the oscilloscope. The output from the device is probed by
CH2of the oscilloscope.
2.
Push the Utility button, select Function in the bottom menu, select FRA in the left menu
3.
In the bottom menu, select FRA . In the right menu, check FRA , and set other menu items.
4.
In the bottom menu, select Setup or Chart . In the right menu, set the menu items.
5.
In the bottom menu, check Analysis to run the analysis.
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6.Communication with PC
6.
Communication with PC
The oscilloscope supports communications with a PC through USB or LAN port. You can use the Oscilloscope communication software to store, analyze, display the data and remote control.
To learn about how to operate the software, you can push F1 in the software to open the help document.
Here is how to connect with PC. First, install the Oscilloscope communication software on the supplied CD. Then there are several ways of connection to choose from.
Using USB Port
(1) Connection: Use a USB data cable to connect the USB Device port in the right panel of the Oscilloscope to the USB port of a PC.
(2) Install the driver: Run the Oscilloscope communication software on PC, push F1 to open the help document. Follow the steps of title " I. Device connection " in the document to install the driver.
(3) Port setting of the software: Run the Oscilloscope software; click
"Communications" on the menu bar, choose "Ports-Settings", in the setting dialog, choose "Connect using" as "USB". After connect successfully, the connection information in the bottom right corner of the software will turn green.
Figure 6-1 Connect with PC through USB port
99
6.Communication with PC
Using LAN Port
Connect directly
(1) Connection . Plug in the LAN cable to the LAN port in the back of the oscilloscope; plug the other end into the LAN interface of the computer.
(2) Set the network parameters of the computer . Since the oscilloscope can not support obtaining an IP address automatically, you should assign a static IP address.
Here we set the IP address to 192.168.1.71.
Figure 6-2 Set the network parameters of the computer
(3) Set the network parameters of the Oscilloscope Software. Run the software on the computer; choose the "Ports-settings" of the "Communications" menu item. Set
"Connect using" to LAN. About the IP, the first three bytes is same as the IP in the step (2), the last byte should be different. Here, we set it to 192.168.1.72. The range of the port value is 0 - 4000, but the port which under 2000 is always used, so it is suggested to set it to the value above 2000. Here, we set it to 3000.
100
6.Communication with PC
Figure 6-3 Set the network parameters of the Oscilloscope Software
(4) Set the network parameters of the oscilloscope . In the oscilloscope, push the Utility button. Select Function in the bottom menu. Select LAN Set in the left menu. In the bottom menu, set the Type item as LAN , and select Set . In the right menu, set IP and
Port to the same value as the "Ports-settings" in the software in step (3). Select Save set in the bottom menu, it prompts "Reset to update the config". After resetting the oscilloscope, if you can get data normally in the oscilloscope software, the connection is successful.
Figure 6-4 Set the network parameters of the oscilloscope
Connect through a router
(1) Connection . Use a LAN cable to connect the oscilloscope with a router, the LAN port of the oscilloscope is in the right side panel; the computer should be connected to the router too.
(2) Set the network parameters of the computer . Since the oscilloscope can not support obtaining an IP address automatically, you should assign a static IP address.
The Default gateway and Subnet mask should be set according to the router. Here we
101
6.Communication with PC set the IP address to 192.168.1.71, Subnet mask is 255.255.255.0, Default gateway is
192.168.1.1.
Figure 6-5 Set the network parameters of the computer
(3) Set the network parameters of the Oscilloscope Software. Run the software on the computer; choose the "Ports-settings" of the "Communications" menu item. Set
"Connect using" to LAN. About the IP, the first three bytes is same as the IP in the step (2), the last byte should be different. Here, we set it to 192.168.1.72. The range of the port value is 0 - 4000, but the port which under 2000 is always used, so it is suggested to set it to the value above 2000. Here, we set it to 3000.
Figure 6-6 Set the network parameters of the Oscilloscope Software
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6.Communication with PC
(4) Set the network parameters of the oscilloscope . In the oscilloscope, push the Utility button. Select Function in the bottom menu. Select LAN Set in the left menu. In the bottom menu, set the Type item as LAN , and select Set . In the right menu, set IP and
Port to the same value as the "Ports-settings" in the software in step (3). The Netgate and Net mask should be set according to the router. Select Save set in the bottom menu, it prompts "Reset to update the config". After resetting the oscilloscope, if you can get data normally in the oscilloscope software, the connection is successful.
Figure 6-7 Set the network parameters of the oscilloscope
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7.
Demonstration
7.Demonstration
Example 1: Measurement a Simple Signal
The purpose of this example is to display an unknown signal in the circuit, and measure the frequency and peak-to-peak voltage of the signal.
1. Carry out the following operation steps for the rapid display of this signal:
(1) Set the probe menu attenuation coefficient as 10X and that of the switch in the probe switch as 10X
(see " How to Set the Probe Attenuation Coefficient " on P12).
(2) Connect the probe of Channel 1 to the measured point of the circuit.
(3) Push the Autoset button.
The oscilloscope will implement the Autoset to make the waveform optimized, based on which, you can further regulate the vertical and horizontal divisions till the waveform meets your requirement.
2. Perform Automatic Measurement
The oscilloscope can measure most of the displayed signals automatically. To measure the period, the frequency of the CH1, following the steps below:
(1) Push the Measure front panel button to show the Measure menu.
(2) Select Add in the bottom menu.
(3) In the left Type menu, turn the M knob to select Period .
(4) In the right menu, select CH1 in the Source menu item.
(5) In the right menu, select Add . The period type is added.
(6) In the left Type menu, turn the M knob to select Frequency .
(7) In the right menu, select CH1 in the Source menu item.
(8) In the right menu, select Add . The frequency type is added.
The measured value will be displayed at the bottom left of the screen automatically
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7.Demonstration
Figure 7-1 Measure period and frequency value for a given signal
Example 2: Gain of a Amplifier in a Metering Circuit
The purpose of this example is to work out the Gain of an Amplifier in a Metering
Circuit. First we use Oscilloscope to measure the amplitude of input signal and output signal from the circuit, then to work out the Gain by using given formulas.
Set the probe menu attenuation coefficient as 10X and that of the switch in the probe as 10X
(see " How to Set the Probe Attenuation Coefficient " on P12).
Connect the oscilloscope CH1 channel with the circuit signal input end and the CH2 channel to the output end.
Operation Steps:
(1) Push the Autoset button and the oscilloscope will automatically adjust the waveforms of the two channels into the proper display state.
(2) Push the Measure button to show the Measure menu.
(3) Select Add in the bottom menu.
(4) In the left Type menu, turn the M knob to select PK-PK .
(5) In the right menu, select CH1 in the Source menu item.
(6) In the right menu, select Add . The peak-to-peak type of CH1 is added.
(7) In the left Type menu, turn the M knob to select PK-PK .
(8) In the right menu, select CH2 in the Source menu item.
(9) In the right menu, select Add . The peak-to-peak type of CH2 is added.
(10) Read the peak-to-peak voltages of Channel 1 and Channel 2 from the bottom left
of the screen (see Figure 7-2 ).
(11) Calculate the amplifier gain with the following formulas.
105
7.Demonstration
Gain = Output Signal / Input signal
Gain (db) = 20×log (gain)
Figure 7-2 Waveform of Gain Measurement
Example 3: Capturing a Single Signal
It's quite easy to use Digital Oscilloscope to capture non-periodic signal, such as a pulse and burr etc. But the common problem is how to set up a trigger if you have no knowledge of the signal? For example, if the pulse is the logic signal of a TTL level, the trigger level should be set to 2 volts and the trigger edge be set as the rising edge trigger. With various functions supported by our Oscilloscope, user can solve this problem by taking an easy approach. First to run your test using auto trigger to find out the closest trigger level and trigger type, this helps user to make few small adjustments to achieve a proper trigger level and mode. Here is how we achieve this.
The operation steps are as follows:
(1) Set the probe menu attenuation coefficient to 10X and that of the switch in the probe to 10X
(see " How to Set the Probe Attenuation Coefficient " on P12).
(2) Push CH1 button to select CH1, adjust the Vertical Scale and Horizontal Scale knobs to set up a proper vertical and horizontal ranges for the signal to be observed.
(3) Push the Acquire button to display the Acquire menu.
(4) Select Acqu Mode in the bottom menu. Select Peak Detect in the right menu.
(5) Push the Trigger Menu button to display the Trigger menu.
(6) Select the first menu item in the bottom menu. Select Single in the right menu.
(7) In the left menu, select Edge as the mode.
106
7.Demonstration
(8) Select Source in the bottom menu. Select CH1 in the right menu.
(9) Select Coupling in the bottom menu. Select DC in the right menu.
(10) In the bottom menu, select Slope as (rising ) .
(11) Turn the Trigger Level knob and adjust the trigger level to the roughly 50% of the signal to be measured.
(12) Check the Trigger State Indicator on the top of the screen, if it is not Ready, push down the Run/Stop button and start acquiring , wait for trigger to happen. If a signal reaches to the set trigger level, one sampling will be made and then displayed in the screen. By using this approach, a random pulse can be captured easily. For instance, if we want to find a burst burr of high amplitude, set the trigger level to a slightly higher value of the average signal level, push the
Run/Stop button and wait a trigger. Once there is a burr occurring, the instrument will trigger automatically and record the waveform during the period around the trigger time. By turning the Horizontal Position knob in the horizontal control area in the panel, you can change the horizontal triggering position to obtain the negative delay, making an easy observation of the waveform before the burr
Figure 7-3 Capturing a Single Signal
Example 4: Analyze the Details of a Signal
Noise is very common inside most of the electronic signal. To find out what's inside the noise and reduce the level of noise is very important function our oscilloscope is capable to offer.
Noise Analysis
The level of noise sometime indicates a failure of electronic circuit. The Peak Detect
107
7.Demonstration
functions acts an important role to help you to find out the details of these noise. Here is how we do it:
(1) Push the Acquire button to display the Acquire menu.
(2) Select Acqu Mode in the bottom menu.
(3) Select Peak Detect in the right menu.
The signal displayed on the screen containing some noise, by turning on Peak Detect function and changing time base to slow down the incoming signal, any peaks or burr
would be detected by the function (see Figure 7-4 ).
Figure 7-4 Signal with Noises
Separate Noises from the Signal
When focusing on signal itself, the important thing is to reduce the noise level as lower as possible, this would enable user to have more details about the signal. The
Average function offered by our Oscilloscope can help you to achieve this.
Here are the steps for how to enable Average function.
(1) Push the Acquire button to display the Acquire menu.
(2) Select Acqu Mode in the bottom menu.
(3) Select Average in the right menu, turn the M knob and observe the waveform obtained from averaging the waveforms of different average number.
User would see a much reduced random noise level and make it easy to see more details of the signal itself. After applying Average, user can easily identify the burrs
on the rising and falling edges of some part of the signal (see Figure 7-5 ).
108
7.Demonstration
Figure 7-5 Reduce Noise level by using Average function
Example 5: Application of X-Y Function
Examine the Phase Difference between Signals of two Channels
Example: Test the phase change of the signal after it passes through a circuit network.
X-Y mode is a very useful when examining the Phase shift of two related signals.
This example takes you step by step to check out the phase change of the signal after it passes a specified circuit. Input signal to the circuit and output signal from circuit are used as source signals.
For the examination of the input and output of the circuit in the form of X-Y coordinate graph, please operate according to the following steps:
(1) Set the probe menu attenuation coefficient for 10X and that of the switch in the probe for 10X
(see " How to Set the Probe Attenuation Coefficient " on P12).
(2) Connect the probe of channel 1 to the input of the network and that of Channel 2 to the output of the network.
(3) Push the CH1 to CH4 button to turn on CH1 and CH2, turn off CH3 and CH4.
(4) Push the Autoset button, with the oscilloscope turning on the signals of the two channels and displaying them in the screen.
(5) Push CH1 button to select CH1, turn the Vertical Scale knob, and then push
CH2 button to select CH2, turn the Vertical Scale knob, making the amplitudes of two signals equal in the rough.
(6) Push the Display button and recall the Display menu.
(7) Select XY Mode in the bottom menu. Select Enable as ON in the right menu.
The oscilloscope will display the input and terminal characteristics of the network
109
in the Lissajous graph form.
7.Demonstration
(8) Turn the Vertical Scale and Vertical Position knobs, optimizing the waveform.
(9) With the elliptical oscillogram method adopted, observe and calculate the phase
The signal must be centered and kept in the horizontal direction.
Figure 7-6 Lissajous Graph
Based on the expression sin (q) =A/B or C/D , thereinto, q is the phase difference angle, and the definitions of A, B, C, and D are shown as the graph above. As a result, the phase difference angle can be obtained, namely, q =± arcsin (A/B) or ± arcsin
(C/D) . If the principal axis of the ellipse is in the I and III quadrants, the determined phase difference angel should be in the I and IV quadrants, that is, in the range of
(0 -
π /2) or (3π / 2 - 2π). If the principal axis of the ellipse is in the II and IV quadrants, the determined phase difference angle is in the II and III quadrants, that is, within the range of (π / 2 - π) or (π - 3π /2).
Example 6: Video Signal Trigger
Observe the video circuit of a television, apply the video trigger and obtain the stable video output signal display.
Video Field Trigger
For the trigger in the video field, carry out operations according to the following steps:
110
7.Demonstration
(1) Push the Trigger Menu button to display the trigger menu.
(2) Select the first menu item in the bottom menu. Select Single in the right menu.
(3) In the left menu, select Video as the mode.
(4) Select Source in the bottom menu. Select CH1 in the right menu.
(5) Select Modu in the bottom menu. Select NTSC in the right menu.
(6) Select Sync in the bottom menu. Select Field in the right menu.
(7) Turn the Vertical Scale , Vertical Position and Horizontal Scale knobs to obtain
a proper waveform display (see Figure 7-7 ).
Figure 7-7 Waveform Captured from Video Field Trigger
111
8.Troubleshooting
8.
Troubleshooting
1.
Oscilloscope is powered on but no Display.
Check whether the power connection is connected properly.
Check whether the fuse which is beside the AC power input jack is blew (the cover can be pried open with a straight screwdriver).
Restart the instrument after completing the checks above.
If the problem persists, please contact us and we will be under your service.
2.
After acquiring the signal, the waveform of the signal is not displayed in the screen.
Check whether the probe is properly connected to the signal connecting wire.
Check whether the signal connecting wire is correctly connected to the BNC
(namely, the channel connector).
Check whether the probe is properly connected with the object to be measured.
Check whether there is any signal generated from the object to be measured (the trouble can be shot by the connection of the channel from which there is a signal generated with the channel in fault).
Make the signal acquisition operation again.
3.
The measured voltage amplitude value is 10 times or 1/10 of the actual value.
Look at the attenuation coefficient for the input channel and the attenuation ration of the probe, to make sure they are match
(see " How to Set the Probe Attenuation
4.
There is a waveform displayed, but it is not stable.
Check whether the Source item in the TRIG MODE menu is in conformity with the signal channel used in the practical application.
Check on the trigger Type item: The common signal chooses the Edge trigger mode for Type and the video signal the Video . Only if a proper trigger mode is applied, the waveform can be displayed steadily.
Try to change the trigger coupling into the high frequency suppress to smooth the high frequency noise triggered by the interference.
5.
No Display Responses to the Push-down of Run/Stop.
Check whether Normal or Single is chosen for Polarity in the TRIG MODE menu and the trigger level exceeds the waveform range.
If it is, make the trigger level is centered in the screen or set the trigger mode as Auto.
In addition, with the Autoset button pressed, the setting above can be completed automatically.
6.
The displaying of waveform seems getting slow after increasing AVERAGE value in Acqu Mode
(see " How to Implement Sampling Setup " on P53 )
, or a longer duration is set in the Persist in Display
.
It's normal as the Oscilloscope is working hard on many more data points.
112
9.Technical Specifications
9.
Technical Specifications
Unless otherwise specified, the technical specifications applied are for DSO four-channel series only, and Probes attenuation set as 10X. Only if the oscilloscope fulfills the following two conditions at first, these specification standards can be reached.
This instrument should run for at least 30 minutes continuously under the specified operating temperature.
If change of the operating temperature is up to or exceeds 5 ℃ , do a
"Self-calibration" procedure (see " How to Implement Self-calibration " on P13).
All specification standards can be fulfilled, except one(s) marked with the word
"Typical".
Oscilloscope
Input
Performance Characteristics
Bandwidth
Vertical Resolution (A/D)
Channel
Waveform Capture Rate
Multi-level Gray Scale Display &
Color Temperature Display
(Use gray scale to indicate frequency of occurrence, where frequently occurring waveform are bright.)
Mode
Acquisition Sample rate
(real time)
Input coupling
Input impedance
Input coupling
Max input voltage
Bandwidth limit
Instruction
DSO-6084 80 MHz
DSO-6104 100 MHz
DSO-6204 200 MHz
8 bits
4
DSO-6084
DSO-6104
45,000 wfms/s
DSO-6204 70,000 wfms/s
Support
Normal, Peak detect, Averaging
Four CH 250 MSa/s
DSO-6084
DSO-6104
Dual CH* 500 MSa/s
Single CH 1 GSa/s
Four CH 500 MSa/s
DSO-6204 Dual CH* 1 GSa/s
Single CH 1 GSa/s
DC, AC , Ground
1 MΩ±2%, in parallel with 15 pF±5 pF
0.001X - 1000X, step by 1 – 2 - 5
400 V (DC + AC Peak)
20 MHz, full bandwidth
113
9.Technical Specifications
System
Performance Characteristics
Channel to channel isolation
Time delay between channel (typical)
Horizontal
Vertical system
50Hz: 100 : 1
10MHz: 40 : 1
150ps
Instruction
Sampling rate range
Interpolation
Record length
Scanning speed (S/div)
DSO-6084
DSO-6104
DSO-6204
Four CH 0.05 Sa/s - 250 MSa/s
Dual CH* 0.05 Sa/s - 500 MSa/s
Single CH 0.05 Sa/s - 1 GSa/s
Four CH 0.05 Sa/s - 500 MSa/s
Dual CH* 0.05 Sa/s - 1 GSa/s
Single CH 0.05 Sa/s - 1 GSa/s
(Sinx)/x, x
4 channels ON: max 10M;
2 channels ON: max 20M;
1 channel ON: max 40M.
DSO-6084
DSO-6104
DSO-6204
2ns/div - 1000s/div, step by 1 – 2 - 5
1ns/div - 1000s/div, step by 1 – 2 - 5
Sampling rate / relay time accuracy
± 2.5 ppm max (Ta = +25 ℃ )
Interval(
Rise time (at input,
Typical)
△
(DC - 100MHz)
Sensitivity
T) accuracy
Displacement
Analog bandwidth
Single bandwidth
Low Frequency
Single ：
± (1 interval time+1 ppm×reading+0.6 ns);
Average>16 ：
± (1 interval time +1 ppm×reading+0.4 ns)
1 mV/div - 10 V/div
DSO-6084
DSO-6104
±2 V (1 mV/div – 50 mV/div) ；
±2 0 V (100 mV/div – 1 V/div) ；
±200 V (2 V/div – 10 V/div)
±2 V (1 mV/div – 100 mV/div) ；
DSO-6204 ±20 V (200 mV/div – 1 V/div) ；
±200 V (2 V/div – 10 V/div)
DSO-6084 80 MHz
DSO-6104 100 MHz
DSO-6204 200 MHz
DSO-6084 DC to 80 MHz
DSO-6104 DC to 100 MHz
DSO-6204 DC to 200 MHz
≥ 10 Hz (at input, AC coupling, -3 dB)
DSO-6084 ≤ 4.375 ns
DSO-6104 ≤ 3.5 ns
DSO-6204 ≤ 1.75 ns
114
9.Technical Specifications
Performance Characteristics
DC gain accuracy
DC accuracy (average)
DSO-6084
DSO-6104
1 mV
Instruction
≥2 mV
±4%
±3%
DSO-6204
1 mV
≥2 mV
± 3 %
± 2 %
Delta Volts between any two averages of
≥16 waveforms acquired with the same scope setup and ambient conditions ( △ V):
±(3% rdg + 0.05 div)
Waveform inverted ON/OFF
Measurement
Cursor
Automatic
Waveform Math
Decoding Type
△ V, △ T, △ T& △ V between cursors, auto cursor
Period, Frequency, Mean, PK-PK, RMS,
Max, Min, Top, Base, Amplitude,
Overshoot, Preshoot, Rise Time, Fall Time,
+Pulse Width, -Pulse Width, +Duty Cycle,
-
Duty Cycle, Delay A→B
, Delay
A→B , Cycle RMS, Cursor RMS, Screen
Duty, Phase
A→B , Phase A→B , +Pulse
Count, -Pulse Count, Rise Edge Count, Fall
Edge Count, Area, and Cycle Area.
＋ , － , *, / ,FFT, FFTrms, Intg, Diff, Sqrt,
User Defined Function, digital filter (low pass, high pass, band pass, band reject)
RS232, I
2
C, SPI, CAN
Waveform storage 100 waveforms
Bandwidth
Full bandwidth
Lissajous figure
Phase difference
±3 degrees
Communication port
Printer
Compatibility
Counter
USB Host, USB Device; Trig Out(Pass/Fail); LAN port
PictBridge
Support
* For DSO-6084 and DSO-6104, Max Sample rate (real time) for Dual CH should meet either following condition:
1. CH1&CH2 on, CH3&CH4 off;
2. CH1&CH2 off, CH3&CH4 on.
For DSO-6204, Max Sample rate (real time) for Dual CH should meet the following condition:
CH1 and CH2 can not be turned on simultaneously, CH3 and CH4 can not be turned on simultaneously.
115
9.Technical Specifications
Trigger
Performance Characteristics
Trigger level range Internal
Instruction
±5 div from the screen center
Trigger level
Accuracy (typical)
Internal
Trigger displacement
Trigger Holdoff range
100 ns – 10 s
±0.3 div
According to Record length and time base
50% level setting
(typical)
Input signal frequency ≥ 50 Hz
Edge trigger
Video Trigger
Pulse trigger
Slope Trigger
Runt Trigger
Windows Trigger
Timeout Trigger
Nth Edge Trigger
Logic Trigger
RS232 Trigger slope Rising, Falling
Modulation
Support standard NTSC, PAL and
SECAM broadcast systems
Line number range 1-525 (NTSC) and 1-625 (PAL/SECAM)
Trigger condition
Positive pulse ：＞ , ＜ , ＝
Negative pulse ：＞ , ＜ , ＝
Pulse Width range 30 ns to 10 s
Trigger condition
Time setting
Positive pulse ：＞ , ＜ , ＝
Negative pulse
：＞
,
＜
,
＝
30 ns to 10 s
Polarity Positive, Negative
Pulse Width
Condition
>, =, <
Pulse Width Range 30 ns to 10 s
Polarity
Trigger Position
Windows Time
Edge Type
Idle Time
Edge Type
Positive, Negative
Enter, Exit, Time
30 ns to 10 s
Rising, Falling
30 ns to 10 s
Rising, Falling
Idle Time
Edge Number
Logic Mode
30 ns to 10 s
1 to 128
AND, OR, XNOR, XOR
Input Mode
Output Mode
Polarity
H, L, X, Rising, Falling
Goes True, Goes False, Is True >,
Is True <, Is True =
Normal, Inverted
Trigger Condition Start, Error, Check Error, Data
Baud Rate Common, Custom
116
I2C Trigger
SPI Trigger
CAN Trigger
9.Technical Specifications
Data Bits
Trigger Condition
Address Bits
Address Range
5 bit, 6 bit, 7 bit, 8 bit
Start, Restart, Stop, ACK Lost, Address,
Data, Addr/Data
7 bit, 8 bit, 10 bit
0 to 127, 0 to 255, 0 to 1023
Byte Length 1 to 5
Trigger Condition Timeout
Timeout Value 30 ns to 10 s
Data Bits 4 bit to 32 bit
Data Line Setting H, L, X
Signal Type
Trigger Condition
Baud Rate
CAN_H, CAN_L, TX, RX
Start of Frame, Type of Frame, Identifier,
Data, ID & Data, End of Frame, Missing
Ack, Bit Stuffing Error
Common, Custom
Sample Point
Frame Type
5% to 95%
Data, Remote, Error, Overload
Waveform Generator (optional)
Performance
Characteristics
Max Frequency Output 25 MHz
Sample Rate
Channel
Vertical Resolution
Amplitude Range
Waveform length
Standard Waveforms
Arbitrary Waveforms
125 MSa/s
1 or 2
14 bits
2 mVpp - 6 Vpp
8K
Instruction
Sine, Square, Ramp, and Pulse
Exponential Rise, Exponential Fall, Sin(x)/x, Step Wave,
Noise, and others, total 46 built-in waveforms, and user-defined arbitrary waveform
117
9.Technical Specifications
General Technical Specifications
Display
Display Type
Display Resolution
Display Colors
8" Colored LCD (Liquid Crystal Display)
800 (Horizontal) × 600 (Vertical) Pixels
65536 colors, TFT screen
Output of the Probe Compensator
Output Voltage
(Typical)
About 3.3 V, with the Peak-to-Peak voltage
Frequency (Typical) Square wave of 1 KHz
≥ 1
MΩ.
Power
Mains Voltage
Power Consumption
Power Fuse
Battery (optional)
100V – 240 VACRMS, 50/60 Hz, CAT Ⅱ
DSO-6084
＜ 15 W
DSO-6104
DSO-6204 ＜ 24 W
2 A, T class, 250 V
, Φ5 x 20 mm
3.7V, 13200mAh
Environment
Temperature
Relative Humidity
Height
Cooling Method
Working temperature: 0
℃
- 40
℃
Storage temperature: -20 ℃ - 60 ℃
≤ 90%
Operating: 3,000 m
Non-operating: 15,000 m
Fan cooling
Mechanical Specifications
Dimension 340 mm × 177 mm × 90 mm (L*H*W)
Weight Approx. 2.6 kg (without accessories)
Interval Period of Adjustment:
One year is recommended for the calibration interval period.
118
10.Appendix
10.
Appendix
Appendix A: Enclosure
(The accessories subject to final delivery.)
Standard Accessories:
Power Cord CD Rom Quick Guide USB Cable Probe
Probe Adjust
Options:
Q9 Battery
(B/N 1611425)
Appendix B: General Care and Cleaning
General Care
Do not store or leave the instrument where the liquid crystal display will be exposed to direct sunlight for long periods of time.
Caution: To avoid any damage to the instrument or probe, do not exposed it to any sprays, liquids, or solvents.
Cleaning
Inspect the instrument and probes as often as operating conditions require.
To clean the instrument exterior, perform the following steps:
1.
Wipe the dust from the instrument and probe surface with a soft cloth. Do not make any scuffing on the transparent LCD protection screen when clean the LCD screen.
119
10.Appendix
2.
Disconnect power before cleaning your Oscilloscope. Clean the instrument with a wet soft cloth not dripping water. It is recommended to scrub with soft detergent or fresh water. To avoid damage to the instrument or probe, do not use any corrosive chemical cleaning agent.
Warning: Before power on again for operation, it is required to confirm that the instrument has already been dried completely, avoiding any electrical short circuit or bodily injury resulting form the moisture.
Appendix C: Optional Battery Using Guide
Battery level indicator
Figure 10-1 Battery level indicator
Charging the oscilloscope
There will have battery power indication show on the top of panel when oscilloscope
power supplied by the battery (if no indication has appeared, see " Display " on P73 ).
indicates the battery is nearly used up.
Note:
To avoid overheat of battery during charging, the ambient temperature is not allowed to exceed the permissible value given in technical specification.
Replacing the Lithium Battery Unit
It is usually not required to replace the battery unit. But when it is required to replace it, only qualified personnel can carry out this operation, and only use the same specification lithium battery.
120
10.Appendix
Appendix D: Line Fuse Replacement
The line fuse is in the plastic fuse box below the power line input on the rear panel.
Warning:
Disconnect the line cord at the rear panel and remove all test leads connected to the instrument before replacing the line fuse. Failure to do so could expose the operator to hazardous voltages that could result in personal injury or death.
The rating of replaceable fuse is 2 A, T class, 250 V, Φ 5 x 20 mm. Use only the correct fuse type. Failure to do so could result in personal injury or instrument damage.
To perform the line fuse replacement, follow these steps:
1.
2.
Remove the power cord.
Use a screwdriver to remove the fuse box.
3. Replace the fuse with a new one, which should match with the rating; install it into the fuse box and then push the fuse box back on to the rear panel.
121
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