Extech Extech MS6060 Manual

User Manual
Digital Storage Oscilloscope
MS6000 Series
99 Washington Street Melrose, MA 02176
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Chapter 1 – Contents
CHAPTER 1 - CONTENTS........................................................................................2
1.1 GENERAL SAFETY SUMMARY...............................................................................5
1.2 SAFETY TERMS AND SYMBOLS.............................................................................6
1.3 TERMS ON PRODUCT ............................................................................................6
1.4 SYMBOLS ON PRODUCT........................................................................................6
1.5 PRODUCT AND BATTERY DISPOSAL......................................................................7
CHAPTER 2 - OVERVIEW ........................................................................................8
2.1 BRIEF INTRODUCTION ON MS6000 SERIES ..........................................................8
CHAPTER 3 - GETTING STARTED GUIDE...........................................................9
3.1 INSTALLATION ......................................................................................................9
3.2 FUNCTIONAL CHECK............................................................................................9
3.3 POWER ON THE OSCILLOSCOPE............................................................................9
3.4 CONNECT THE PROBE TO THE OSCILLOSCOPE.......................................................9
3.5 OBSERVING A WAVEFORM...................................................................................10
3.6 PROBE EXAMINATION......................................................................................... 10
3.7 SAFETY ..............................................................................................................10
3.8 MANUAL PROBE COMPENSATION.......................................................................11
3.9 PROBE ATTENUATION SETTING...........................................................................12
3.10SELF CALIBRATION ............................................................................................12
3.11MULTIFUNCTION CONTROL................................................................................12
- MAIN FEATURES...........................................................................................................13
3.12OSCILLOSCOPE SETUP ........................................................................................13
3.13TRIGGER ............................................................................................................13
3.14DATA ACQUISITION ............................................................................................15
3.15WAVEFO R M SCALING AND POSITIONING ............................................................16
3.16WAVEFO R M MEASUREMENT...............................................................................17
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CHAPTER 4 - BASIC OPERATION.......................................................................19
4.1 DISPLAY AREA...................................................................................................20
4.1.1 XY Format ...............................................................................................22
4.2 HORIZONTAL CONTROLS....................................................................................23
4.2.1 Scan Mode Display (Roll Mode)...........................................................26
4.3 VERTICAL CONTROLS.........................................................................................26
4.3.1 Math FFT.................................................................................................29
4.3.1.1 Setting Time-domain W aveform....................................................................... 29
4.3.1.2 Displaying FFT Spectrum................................................................................. 31
4.3.1.3 Selecting FFT Window..................................................................................... 32
4.3.1.4 FFT Aliasing..................................................................................................... 34
4.3.1.5 Eliminating Aliases...........................................................................................34
4.3.1.6 Magnifying and Positioning FFT Spectrum................................................. 35
4.3.1.7 Using Cursors to Measure FFT Spectrum......................................................... 35
4.4 TRIGGER CONTROLS ..........................................................................................37
4.5 MENU AND OPTION BUTTONS ............................................................................46
4.5.1 SAVE/RECALL.......................................................................................46
4.5.2 MEASURE...............................................................................................48
4.5.3 CURSOR.................................................................................................50
4.5.4 UTILITY....................................................................................................51
4.5.5 DISPLAY..................................................................................................55
4.5.6 ACQUIRE................................................................................................56
4.5.7 Fast Action Buttons................................................................................58
4.5.8 AUTOSET................................................................................................58
CHAPTER 5 - MULTIMETER OPERATI ON..........................................................60
CHAPTER 6 - TROUBLESHOOTING ................................................................... 73
6.1 PROBLEM SOLVING ............................................................................................73
CHAPTER 7 - SPECIFICATIONS...........................................................................74
7.1 TECHNICAL SPECIFICATIONS ..............................................................................74
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CHAPTER 8 - GENERAL CARE AND CLEANING.............................................87
8.1 GENERAL CARE..................................................................................................87
8.2 CLEANING..........................................................................................................87
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- Safety Tips
1.1 General Safety Summary
Read the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To evade potential hazards, use this product only as specified.
Only qualified personnel should perform maintenance.
Avoid fire or personal injury.
Use suitable power cord. Use only the power cord specified for this product and certified for the
country of use. Connect and disconnect properly. Connect a probe with the oscilloscope before it is connected to measured circuits; disconnect the probe from the oscilloscope after it is disconnected from measured circuits. Ground the product. This product is grounded through the grounding conductor of the power cord. To avoid electric shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output terminals of the product, ensure that the product is properly grounded. Connect the probe in a right way. The probe ground lead is at ground potential. Do not connect the ground lead to an elevated voltage. Check all terminal ratings. T o avoid fire or shock hazard, check all ratings and markings on the product. Refer to the product manual for detailed information about ratings before making connections to the product.
Do not operate without covers. Do not operate this product with covers or panels removed. Avoid exposed circuitry. Do not touch exposed connections and components when power is present. Do not operate with suspected failures. If damage to this product is suspected, have it inspected by
qualified service personnel.
Assure good ventilation. Do not operate in wet/damp environments. Do not operate in an explosive atmosphere. Keep product surfaces clean and dry.
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1.2 Safety Terms and Symbols
The following terms may appear in this manual:
WARNING W arning statements point out conditions or practices that could result in injury or
loss of life.
CAUTION Caution statements identify conditions or practices that could result in damage to
this product or other property.
1.3 Terms on Product
The following terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as the marking is read. WARNING indicates an injury hazard not immediately accessible as the marking is read. CAUTION indicates a possible hazard to this product or other property.
1.4 Symbols on Product
The following symbols may appear on the product:
Protective
Ground
(Earth)
Terminal
Mains
Disconnected
OFF (Power)
Measurement
Ground
Terminal
Mains
Connected
ON (Power)
CAUTION
Refer to Manual
High Voltage
Measurement Input Terminal
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1.5 Product and Battery Disposal
Battery Recycling and Disposal
You, as the end user, are legally bound (EU Battery ordinance) to return all used batteries, disposal in the household garbage is prohibited! You can hand over your used batteries / accumulators at collection points in your community or wherever batteries / accumulators
are sold! Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle
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Chapter 2 - Overview
2.1 Brief Introduction on MS6000 Series
Model Channels Bandwidth Sample Rate LCD
MS6060 2 60MHz 1GS/s 5.6 inch color MS6100 2 100MHz 1GS/s 5.6 inch color MS6200 2 200MHz 1GS/s 5.6 inch color
Table 2-1 Model List of MS6000 Series
MS6000 Series oscilloscopes bandwidths range from 60MHz to 200MHz, and provide real-time and equivalent sample rates respectively up to 1GSa/s and 25GSa/s. In addition, they have maximum 1MB memory depth for better observation of the waveform details, and 5.6 inch color TFT LCD as well as WINDOWS-style interfaces and menus for easy operation.
Additionally, the generous menu information and the easy-to-operate buttons maximize the information available for each measurement; the multifunctional and powerful shortcut keys save time and maximize efficiency; the Autoset (AUTO) function allows the user to detect sine and square waves automatically.
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Chapter 3 - Getting Started Guide
3.1 Installation
T o keep proper ventilation of the oscilloscope in operation, leave a space of more than 5 cm (2”) from the top and the two sides of the product.
3.2 Functional Check
Follow the steps below to perform a quick functional check to your oscilloscope.
3.3 Power ON the oscilloscope
Press the ON/OFF button. The start-up sequence will take up to 15 seconds to complete.
NOTE: The AC Charger is intended for battery charging only. Use of charger during measurements is not recommended.
The default probe parameter
3.4 Connect the Probe to the oscilloscope
Set the switch on the probe to 10X and connect the probe to the Channel 1 BNC on the oscilloscope. Connect the probe tip to the 1 KHz Probe Compensation connector and the reference lead to t he Ground connector. The CH1 default Probe option attenuation setting is 1X, change this to 10X.
Channel 1 Probe Connection
Ground connection for reference lead when compensating
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Connect Probe tip to 1-KHz signal when compensating
3.5 Observing a waveform
Press the AUTO button and a 1 KHz square wave of approx. 5V peak-to-peak will appear in the display. Press the CH1 button and remove Channel 1. Move the Probe to the CH2 BNC, push the CH2 button and repeat these steps to observe the test signal on Channel 2.
3.6 Probe Examination
3.7 Safety
When using the probe, keep fingers behind the guard on the probe body to avoid electric shock. Do not touch metallic portions of the probe head while it is connected to a voltage source. Connect the probe to the oscilloscope and connect the ground terminal to ground before starting any measurements.
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3.8 Manual Probe Compensation
Upon the first connection of a probe to an input channel, manually perform this adjustment to match the probe to the input channel. Uncompensated probes may lead to errors or faults in measurement.
To adjust the probe compensation, follow the steps below.
1. Set the switch on the probe to 10X and connect the probe to Channel 1 on the oscilloscope. Attach
the probe tip to the PROBE COMP ~5V@1KHz connector and the reference lead to the PROBE COMP Ground connector. Press CH1 button and set the Probe attenuation to 10X. Press the AUTO button and you should see the 1 KHz reference signal.
2. Check the shape of the displayed waveform.
Compensated correctly
Overcompensated
Undercompensated
3. If necessary, use a nonmet allic screwdriver to adjust the variable probe capacitor until the shape of
the waveform appears to be the same as shown in the above figure. Repeat this step as necessary for additional probes. Refer to the figure below for adjustment illustration.
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3.9 Probe Attenuation Setting
Probes are of various attenuation factors which affect the vertical scale of the signal. Ensure that the attenuation switch on the probe matches the CH probe option in the oscilloscope. Switch settings are 1X and 10X. T o set the probe attenuation to match the probe setting, push the vertical menu button (such as the CH1 button) and select the probe option that matches the attenuation factor of the probe in use.
When the attenuation switch is set to 1X, the probe limits the bandwidth of the oscilloscope to 6MHz. To use the full bandwidth of the oscilloscope, be sure to set the switch to 10X.
3.10 Self Calibration
The self calibration routine helps optimize the oscilloscope signal path for maximum measurement accuracy. The routine can be run at any time but should always be run if the ambient temperature changes by 5°C or more. For an accurate calibration, please power on the oscilloscope and wait 20 minutes before performing the Self calibration. To compensate the signal path, disconnect any probes or cables from the front-panel input connectors.
3.11 Multifunction Control
The Multifunction Control arrows are used to move the cursors and change menu item settings.
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- Main Features
This chapter provides some general information the user should be aware of before using this oscilloscope. It contains:
4.1 Oscilloscope setup
4.2 Trigger
4.3 Data Acquisition
4.4 Waveform scaling and positioning
4.5 Waveform measurement
3.12 Oscilloscope Setup
While operating the oscilloscope, the AUTOSET feature will, in most cases, be used. Autoset: This function can be used to adjust the horizontal and vertical scales of the oscilloscope automatically and set the trigger coupling, type, position, slope, level and mode, etc., to acquire a stable waveform display. Press the AUTO button to engage Autoset.
3.13 Trigger
The trigger determines when the oscilloscope begins to acquire data and display a waveform. Once a trigger is properly set up, the oscilloscope can convert unstable displays or blank screens to meaningful waveforms. Basic information regarding triggering is provided below.
Trigger Source: The trigger can be generated from either CH1 or CH2. The input channel can trigger normally whether or not the input signal is displayed.
Trigger Type: The oscilloscope has six types of triggers: Edge, Video, Pulse Width, Slope, Overtime, and Alter. Press the TRIG button to engage this feature.
Edge Trigger Triggering occurs when the input trigger source crosses a specified level in a
specified direction.
Video Trigger performs a field or line trigger through standard video signals.
Pulse Width Trigger can trigger normal or abnormal pulses that meet trigger conditions.
Slope Trigger uses the rise and fall times on the edge of a signal for triggering.
Overtime Trigger occurs after the edge of a signal reaches the set time.
Alter Trigger uses a specific frequency to switch between two analog channels (CH1 and
CH2), so that the channels will generate swap trigger signals.
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g
j
y
Slope and Level: (Set Trig Type to Edge or Slope) The Slope and Level controls help to define the trigger. The Slope option determines whether the trigger point is on the rising or falling edge of a signal. To perform the trigger slope control, press the TRIG button and then select Edge trigger (F1), and use the Slope button (F3) to select rising or falling. The LEVEL button controls where the trigger point is on the edge.
Trigger level can be
usted verticall
ad
Rising Edge
Trigger slope can be rising or fallin
Trigger Mode: (Auto, Normal, Single) Select the Auto or Normal mode to define how the oscilloscope acquires data when it does not detect a trigger condition. Aut o M od e performs the acquisition freely in absence of valid trigger. It allows the generation of untriggered waveforms with the time base set to 80ms/div or slower. Normal Mode updates the displayed waveforms only when the oscilloscope detects a valid trigger condition. Before this update, the oscilloscope continues to display the older waveforms. This mode should be used when it is desired to only view the effectively triggered waveforms. In this mode, the oscilloscope displays waveforms only after the first trigger.
Single mode will allow you to view a Single sweep of a waveform.
Trigger Coupling: (AC, DC, Noise Reject, HF Reject, LF Reject) Trigger Coupling determines which
part of the signal will be delivered to the trigger circuit. This can help to obtain a stable display of the waveform. T o use trigger coupling, push the TRIG button, select Edge, Pulse, Slope, or O.T . trigger, and then press F5 for page 2 and select a Coupling option. Trigger Position: The horizontal position control establishes the time between the trigger position and the screen center.
Falling Edge
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3.14 Data Acquisition
When an analog signal is acquired, the oscilloscope will convert it to a digital one. There are two kinds of acquisitions: Real-time acquisition and Equivalent acquisition. The real-time acquisition has three modes: Normal, Peak Detect, and Average. The acquisition rate is affected by the time base.
Real-Time Acquisition: Normal: In this mode, the oscilloscope samples the signal in evenly spaced intervals to establish the
waveform. This mode accurately represents signals in most instances. However, it does not acquire rapid variations in the analog signal that may occur between two samples, which can result in aliasing and may cause narrow pulses to be missed. In such cases, use the Peak Detect mode to acquire data. Peak Detect: In this mode, the oscilloscope obtains the maximum and minimum values of the input signal over each sample interval and uses these values to display the waveform. In this way, the oscilloscope can acquire and display narrow pulses that may have otherwise been missed in Normal mode. However, noise will appear to be higher in this mode. Average: In this mode, the oscilloscope acquires several waveforms, averages them, and displays the resulting waveform. Use this mode to reduce random noise.
Equivalent Acquisition:
This type of acquisition can be utilized for periodic signals. In case the acquisition rate is too low when using the real-time acquisition, the oscilloscope will use a fixed rate to acquire data with a stationary (very small) delay after each acquisition of a frame of data. After repeating this acquisition for N times, the oscilloscope will arrange the acquired N frames of data by time to make up a new frame of data; and then the waveform can be recovered. The number of times (N) is related to the equivalent acquisition rate.
Time Base: The oscilloscope digitizes waveforms by acquiring the value of an input signal at discrete points. The time base helps to control how often the values are digitized. Use the TIME/DIV button to adjust the time base to a horizontal scale that suits your requirements.
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3.15 Waveform Scaling and Positioning
The display of waveforms on the screen can be changed by adjusting their scale and position. Once the scale changes, the waveform display will increase or decrease in size. Once the position changes, the waveform will move up, down, right, or left. The channel reference indicator (located on the left of the graticule) identifies each waveform on the screen. It points to the ground level of the waveform record.
Vertical Scale and Position: The vertical position of a waveform can be changed by moving it up or down on the screen. To compare data, align one waveform over another.
Horizontal Scale and Position: Pretrigger Information The HORIZONTAL POSITION control can be adjusted to view waveform data before the trigger, after the trigger, or some of each. When the horizontal position of a waveform is changed, the time between the trigger position and the screen center is being changed.
For example, to find the cause of a glitch in a test circuit, trigger on the glitch and make the pre-trigger period long enough to capture data before the glitch. Then analyze the pre-trigger data and perhaps find the cause. Change the horizontal scale of all the waveforms by clicking the TIME/DIV button; for example, to see just one cycle of a waveform to measure the overshoot on its rising edge. The oscilloscope shows the horizontal scale as time per division in the scale readout. Since all active waveforms use the same time base, the oscilloscope only displays one value for all of the active channels.
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3.16 Waveform Measurement
The oscilloscope displays graphs of voltage versus time (YT) and can help to measure the displayed waveform. There are several ways to take measurements, using the graticule, the cursors or performing an automatic measurement.
Graticule: This method allows a quick, visual estimate and takes a simple measurement through the graticule divisions and the scale factor. For example, the user can take simple measurements by counting the major and minor graticule divisions involved and multiplying by the scale factor. If 6 major vertical graticule divisions are counted between the minimum and maximum values of a waveform and a scale factor of 50mV/division is selected, the peak-to-peak voltage can be calculated as follows: 6 divisions x 50mV/division = 300mV.
Cursor: This method allows the user to take measurements by moving the cursors. Cursors always appear in pairs and the displayed readouts are just their measured values. There are two types of cursors: Amplitude Cursor and Time Cursor. The amplitude cursor appears as a horizontal broken line, measuring the vertical parameters. The time cursor appears as a vertical broken line, measuring the horizontal parameters. When using the cursors please set the Source parameter to the desired waveform. To use cursors, push the CURSOR button.
Cursor
Cursor
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Automatic Measurement: The oscilloscope performs all of the calculations automatically in this mode. As this measurement uses the waveform record points, it is more precise than the graticule and cursor measurements. Automatic measurements show the measurement results by readouts which are periodically updated with the new data acquired by the oscilloscope. To use the Measurement mode push the MEAS button.
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Chapter 4 - Basic Operation
The front panel of the oscilloscope is divided into several functional areas. A quick overview of all control buttons on the front panel as well as the displayed information on the screen and relative testing operations is provided in this chapter. The figure below illustrates the front panel of the MS6000 series digital oscilloscope.
Front Panel of the MS6000 Series
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4.1 Display Area
1. Display Format:
: YT
: Vectors
:
Gray indicates auto persistence; Green indicates persistence display is enabled. When the icon is set to green, the time for persistence display will be shown behind it.
: XY : Dots
2. Acquisition Mode: Normal, Peak Detect or Average
3. Trigger Status:
The oscilloscope is acquiring pre-triggered data. All pre-triggered data have been acquired and the oscilloscope is ready to accept a trigger.
T The oscilloscope has detected a trigger and is acquiring the post-trigger information.
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The oscilloscope is in auto mode and is acquiring waveforms in the absence of triggers.
The oscilloscope is acquiring and displaying waveform data continuously in scan mode.
The oscilloscope has stopped acquiring waveform data. S The oscilloscope has finished a single sequence acquisition.
4. Tool Icon:
: If this icon appears, it indicates that the keyboard of the oscilloscope is locked by the host
computer via USB control.
: If this icon appears, it indicates that the USB disk has been connected.
: This icon lights up only when the USB slave interface is connected with the computer.
5. Readout shows the main time base setting.
6. Main Time Base Window
7. Display of window’s position in data memory and data length.
8. Window Time Base
9. Operating Menu shows information for the function keys.
10. Icon indicates channel coupling.
11. Level Range.
12. Icon indicates whether or not the waveform is inverted.
13. 20MB Bandwidth Limit. If this icon appears, it indicates that the bandwidth limit is enabled,
(otherwise the bandwidth limit is disabled).
14. Trigger Type:
: Edge trigger on the rising edge.
: Edge trigger on the falling edge.
: Video trigger with line synchronization.
: Video trigger with field synchronization.
: Pulse Width trigger, positive polarity.
: Pulse Width trigger, negative polarity.
15. Trigger Level.
16. Channel Marker
17. Window displays waveform.
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4.1.1 XY Format
The XY format is used to analyze phase differences, such as those represented by Lissajous patterns. This format plots the voltage on CH1 against the voltage on CH2, where CH1 is the horizontal axis and CH2 is the vertical axis. The oscilloscope uses the untriggered Normal acquisition mode and displays data as dots. The sampling rate is fixed at 1 MS/s. The oscilloscope can acquire waveforms in normal operation mode (YT format) at any sampling rate. The same waveform can be displayed in XY format. To perform this operation, stop the acquisition and change the display format to XY.
The table below covers several controls in XY format. Controls Capability of XY format
CH1 VOLTS and VERTICAL POSITION controls Set the horizontal scale and position CH2 VOLTS and VERTICAL POSITION controls Reference or Math Unusable
Cursors Unusable Auto (display format reset to normal operation - YT) Unusable Time base controls Unusable Trigger controls Unusable
Continuously set the vertical scale and position
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4.2 Horizontal Controls
Use the horizontal controls to change the horizontal scale and position of waveforms. The horizontal position readout shows the time represented by the center of the screen, using the trigger time as zero. When the horizontal scale is changed, the waveform will expand or contract to the screen center. The readout near the upper right of the screen shows the current horizontal position in seconds. M represents ‘Main Time Base’, and W indicates ‘Window Time Base’. The oscilloscope also has an arrow icon at the top of the graticule to indicate the horizontal position.
1. HORIZONTAL POSITION BAR: Used to control the trigger position against the screen center.
2. TIME/DIV: Used to change the horizontal time scale so as to magnify or compress the waveform
horizontally . If the waveform acquisition is stopped (using the RUN/STOP button) the TIME /DIV control will expand or compress the waveform. In dual-window mode, push button F1 to select major or minor window. When the major window is selected, the F1 button provides the same functions as it provides in single-mode window. When the minor window is selected, press TIME/DIV button to scale the waveform (magnification can be set up to 1000x).
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3. Each option in HORI MENU is described as follows:
Options Settings Comments
Window Control (F1) (Menu page 1)
Window Selection (F2) (menu page 1)
Holdoff (F3) (menu page 1)
Reset (F4) (menu page 1)
Page (F5) Change Menu pages 1 to 3 when Window Control is set to
Double Window Single Window
Major Window Minor Window
Select this menu and click the up and down Arrow keys to
Selects either Single or Double window mode (see figures below table). Press this option button in single-window mode to enter the dual-window mode. Selects the major (upper) or minor (lower) window in dual-window mode. The window is highlighted once selected.
adjust the trigger hold-off time within the range of 100ns-10s.
Double Window
Pre Mark (F2) (menu page 2)
Next Mark (F3) (menu page 2)
Set/Clear (F4) (menu page 2)
Clear All (F2) (menu page 3)
Play/Stop (F3) (menu page 3)
Used when Marks are set in place. This button will position
the display to view the signal at any marks to the Left of your present view.
Used when Marks are set in place. This button will position
the display to view the signal at any marks to the Right of your present view.
Sets a mark or Clears the indicated mark. To place a Mark
on the signal, place that portion of the signal to be observed at the center verticle line (Bottom window) using the Horizontal Position button. Press the Set button to add or remove that mark.
Clear all Marks
Push this button to auto move the signal from left to right.
Set the signal window to the left most position using the Horizontal position button. Press Play to start the signal moving across the screen. Press Stop to halt the movement.
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Single-window Mode
Dual-window Mode
Location of expanded window data
Major Window
Minor Window
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4.2.1 Scan Mode Display (Roll Mode)
With the TIME/DIV control set to 80ms/div or slower and the trigger mode set to Auto, the oscilloscope works in the scan acquisition mode. In this mode, the waveform display is updated from left to right without any trigger or horizontal position control.
4.3 Vertical Controls
Vertical controls can be used to display and remove waveforms, adjust vertical size and position of the signal, set input parameters and perform math calculations. Each channel has a separate vertical menu. See below for menu description.
1. VERTICAL POSITION Bar: Move the channel waveform up and down on the screen. In dual-window mode, move the waveforms in both windows at the same time in the same direction.
2. Menu (CH1, CH2): Display vertical menu options; turn ON or OFF the display of channel waveforms. Press the MENU button to turn on the Menu. Press the CH1 or CH2 button to select the channel you want to adjust. Press the F5 key to switch from Menu page 1 to page 2.
Options Settings Comments
DC passes both DC and AC components of the input signal.
Coupling (F1) (menu page 1)
20MHz Bandwidth Limit (F2) (menu page 1)
VOLTS/Div (F3) (menu page 1)
Probe Attenuation (F4) (menu page 1)
DC
AC
Ground
OFF
ON
Coarse
Fine
1X
10X
100X
1000X
AC blocks the DC component of the input signal and attenuates signals below 10Hz. Ground disconnects the input signal and applies a zero volt input. Limits the bandwidth to reduce display noise; filters the signal to eliminate noise and other unnecessary HF components. Selects the resolution of the VOLTS bar. ‘Coarse’ defines a 1-2-5 sequence. ‘Fine’ changes the resolution in smaller steps between the Coarse settings.
Select a value to match the probe attenuation factor so as to ensure correct vertical readouts. Reduce bandwidth to 6MHz when using a 1X probe.
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Invert (F2) (menu page 2)
Reset (F3) (menu page 2)
Ground Coupling
Ground Coupling is used to display a zero-volt waveform. Internally, the channel input is connected with a zero-volt reference level.
Remove Waveform Display
T o remove a waveform from the screen, first push the menu button to display the vertical menu, and then push the appropriate Channel button to remove the waveform. A channel waveform which is unnecessary to display can be used as a trigger source or for math operations.
3. VOLTS
Control the oscilloscope to magnify or attenuate the source signal of the channel waveform. The vertical size of the display on the screen will change (increase or decrease). The key F3 may be used to switch between Coarse and Fine. In the Fine resolution setting, the vertical scale readout displays the actual VOLTS setting. The vertical scale changes only when the control is set to Course and the VOL TS control is adjusted.
Off On
Resets Vertical settings to default
Inverts the waveform relative to the reference level.
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