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DSO5000P Series

Digital Storage Oscilloscope

User Manual

（Version 1.1）

Contents

Contents

Safety Tips

Chapter 1 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. To 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 you suspect there is damage to this product, 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.

Safety Tips

1.2.2 Safety Terms and Symbols Safety Terms and Symbols

The following terms may appear in this manual:The following terms may appear in this manual:

WARNING. Warning statements point out conditions or practices that could result in injury or loss of life.

WARNING. Warning 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.

CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.

1.31.3 Terms on Product Terms on Product

The following terms may appear on the product:The following terms may appear on the product:

DANGERDANGER indicates an injury hazard immediately accessible as you read the marking.indicates an injury hazard immediately accessible as you read the marking.

WARNINGWARNING indicates an injury hazard not immediately accessible as you read the marking.indicates an injury hazard not immediately accessible as you read the marking.

CAUTIONCAUTION indicates a possible hazard to this product or other property.indicates a possible hazard to this product or other property.

1.41.4 Symbols on Product Symbols on Product

The following symbols may appear on the product:The following symbols may appear on the product:

Measurement Input Terminal

CAUTION Refer to Manual

Measurement Ground Terminal

Protective Ground (Earth) Terminal

Mains Disconnected OFF (Power)

Mains High Voltage Connected ON (Power)

1.51.5 Product Scrapping Product Scrapping

Device RecyclingDevice Recycling

We need extract and utilize natural resources to produce this device. If you do not reclaim the device in a proper way, some substances it contains may become harmful or poisonous to environments or human bodies. To avoid them being released outside and to minimize the waste of natural resources, we suggest you reasonably call back this device to ensure proper recovery and recycling of most materials within it.

We need extract and utilize natural resources to produce this device. If you do not reclaim the device in a proper way, some substances it contains may become harmful or poisonous to environments or human bodies. To avoid them being released outside and to minimize the waste of natural resources, we suggest you reasonably call back this device to ensure proper recovery and recycling of most materials within it.

Overview

knob indicate the alternative function of the knob. If a topic uses more than one page, turn the HELP SCROLL knob to move from page to page within the topic.

‹ Hyperlinks

Most of the help topics contain phrases marked with angle brackets, such as . They are links to other topics. Turn the HELP SCROLL knob to move the highlight from one link to another. Push the Show Topic option button to display the topic corresponding to the highlighted link. Press the Back option button to return to the previous topic.

‹ Index

Push the front-panel HELP button, and then press the Index option button. Push the Page Up or Page Down option button until you find the index page which contains the topic you want to view. Turn the HELP SCROLL knob to highlight a help topic. Press the Show Topic option button to display the topic.

NOTE: Press the Exit option button or any menu button to remove the Help text from the screen and return to displaying waveforms.

Getting Started Guide

Chapter 3 Getting Started Guide

3.1 Installation

To keep proper ventilation of the oscilloscope in operation, leave a space of more than 5cm away from the top and the two sides of the product.

3.1.1Power Supply

Use a power supply that delivers 90 to 240 VRMS, 45 to 440 Hz.

3.1.2Power Cord

Use only power cords designed for this product. Refer to 8.2 Accessories for specific standards.

3.2 Functional Check

Follow the steps below to perform a quick functional check to your oscilloscope.

3.2.1Power on the oscilloscope

Plug in the oscilloscope and press the ON/OFF button. Then push the DEFAULT SETUP button. The default Probe option attenuation setting is 10X.

The Default Setup button

3.2.2Connect the oscilloscope

Set the switch on the probe to 10X and connect the probe to Channel 1 on the oscilloscope. First, align the slot in the probe connector with the protuberance on the CH1 BNC and push to connect; then, turn to right to lock the probe in place; after that, connect the probe tip and reference lead to the PROBE COMP connectors. There is a mark on the panel: Probe COMP ~5V@1KHz.

Getting Started Guide

3.3.2Use of Probe Check Wizard

Every time you connect a probe to an input channel, you should use the probe check wizard to verify that this probe is operating correctly. There are two ways to do this:

1 ） Use the vertical menu (for example, push the CH1 MENU button) to set the Probe option attenuation factor.

2 ） Press the PROBE CHECK button to use the Probe Check Wizard and configure the probe option attenuation factor properly following menu prompts.

3.4 Manual Probe Compensation

Upon the first connection of a probe and an input channel, you should manually perform this adjustment to match the probe to the input channel. Uncompensated or miscompensated probes may lead to errors or faults in measurement. To adjust the probe compensation, follow the steps below.

1. Set the Probe option attenuation in the channel menu to 10X. Set the switch on the probe to 10X and connect the probe to Channel 1 on the oscilloscope. If you use the probe hook-tip, ensure it is firmly inserted onto the probe. Attach the probe tip to the PROBE COMP ~5V@1KHz connector and the reference lead to the PROBE COMP Ground connector. Display the channel and then press the AUTOSET button.
2. Check the shape of the displayed waveform.
3. If necessary, use a nonmetallic screwdriver to adjust the variable capacity of your probe until the shape of the waveform turns to be the same as the above figure. Repeat this step as necessary. See the figure below for the way of adjustment.

Compensated correctly

Overcompensated

Undercompensated

Getting Started Guide

3.5 Probe Attenuation Setting

Probes are of various attenuation factors which affect the vertical scale of the signal. The Probe Check function is used to verify if the Probe attenuation option matches the attenuation of the probe.

As an alternative method to Probe Check, you can push a vertical menu button (such as the CH 1 MENU button) and select the Probe option that matches the attenuation factor of your probe.

Make sure that the Attenuation switch on the probe matches the Probe option in the oscilloscope. Switch settings are 1X and 10X.

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.

3.6 Self Calibration

The self calibration routine helps optimize the oscilloscope signal path for maximum measurement accuracy. You can run the routine at any time but should always run it if the ambient temperature changes by 5℃ or more. For a more accurate calibration, please power on the oscilloscope and wait for 20 minutes until it has adequately warmed up.

To compensate the signal path, disconnect any probes or cables from the front-panel input connectors. Then, push the UTILITY button, select the Do Self Cal option and follow the directions on the screen.

.

Main Feature Description

trigger channel or the AC power line (only for Edge triggers). The source with the AC power line shows the frequency relationship between the signal and the AC commercial power.

Trigger Type: The oscilloscope has six types of triggers: Edge, Video, Pulse Width, Slope, Overtime and Swap.

¾ Edge Trigger uses the analog or digital test circuits for triggering. It happens when the input trigger source crosses a specified level in a specified direction. ¾ Video Trigger performs a field or line trigger through standard video signals. ¾ Pulse Width Trigger can trigger normal or abnormal pulses that meet trigger conditions. ¾ Slope Trigger uses the rise and fall times on the edge of signal for triggering. ¾ Overtime Trigger happens after the edge of signal reaches the set time. ¾ Swap Trigger , as a feature of analog oscilloscopes, gives stable displays of signals at two different frequencies. Mainly it uses a specific frequency to switch between two analog channels CH1 and CH2 so that the channels will generate swap trigger signals through the trigger circuitry.

Trigger Mode: You can select the Auto or Normal mode to define how the oscilloscope acquires data when it does not detect a trigger condition. Auto Mode 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 still displays the old waveforms. This mode shall be used when you want to only view the effectively triggered waveforms. In this mode, the oscilloscope displays waveforms only after the first trigger. To perform a single sequence acquisition , push the SINGLE SEQ button.

Trigger Coupling: 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. To use trigger coupling, push the TRIG MENU button, select an Edge or Pulse trigger, and then select a Coupling option.

Trigger Position: The horizontal position control establishes the time between the trigger position and the screen center.

Slope and Level: 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 MENU button, select an Edge trigger, and use the Slope button to select rising or falling. The TRIGGER LEVEL knob controls the trigger point is on which position of the edge.

Rising Edge (^) Falling Edge

Trigger level can be adjusted vertically

Trigger slope can be rising or falling

Main Feature Description

4.3 Data Acquisition

When you acquire an analog signal, the oscilloscope will convert it into a digital one. There are two kinds of acquisition: 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 setting of time base.

Normal: In this acquisition mode, the oscilloscope samples the signal in evenly spaced intervals to establish the waveform. This mode accurately represents signals in most time. 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, you should use the Peak Detect mode to acquire data.

Peak Detect: In this acquisition mode, the oscilloscope gets 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 those narrow pulses that may have otherwise been missed in Normal mode. However, noise will appear to be higher in this mode.

Average: In this acquisition mode, the oscilloscope acquires several waveforms, averages them, and displays the resulting waveform. You can use this mode to reduce random noise.

Equivalent Acquisition: This kind 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 tiny 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. 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 SEC/DIV knob to adjust the time base to a horizontal scale that suits your purpose.

4.4 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 and down on the screen. To compare data, you may align a waveform over another. When you push the VOLTS/DIV button to change the vertical scale of a waveform, the waveform display will contract or expand vertically to the ground level.

Main Feature Description

Cursor

Cursor

Automatic Measurement: The oscilloscope performs all 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

Basic Operation

Chapter 5 Basic Operation

The front panel of the oscilloscope is divided into several functional areas. In this chapter we will give a quick overview of all control buttons and knobs on the front panel as well as the displayed information on the screen and relative testing operations. The figure below illustrates the front panel of the DSO5000P series digital oscilloscope.

Front Panel of DSO5000P Series

5.1 Display Area

Basic Operation

: Pulse Width trigger, positive polarity.

: Pulse Width trigger, negative polarity.

13. Pop-up Prompt
14. Readout tells trigger level.
15. Icon indicates whether the waveform is inverted or not.
16. 20M Bandwidth Limit. If this icon lights up, it means the bandwidth limit is enabled, otherwise disabled.
17. Icon indicates channel coupling.
18. Channel Marker
19. Window displays waveform.

5.1.1XY Format

The XY format is used to analyze phase differences, such as those represented by Lissajous patterns. The 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 YT format at any sampling rate. You may view the same waveform in XY format. To perform this operation, stop the acquisition and change the display format to XY.

The table below shows how to operate some controls in XY format.

Controls Usable or not in XY format CH1 VOLTS/DIV and VERTICAL POSITION controls Set the horizontal scale and position CH2 VOLTS/DIV and VERTICAL POSITION controls Continuously set the vertical scale and position Reference or Math Unusable Cursors Unusable Autoset (display format reset to YT) Unusable Time base controls Unusable Trigger controls Unusable

5.2 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 you change the horizontal scale, 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 second. M represents ‘Main Time Base’, and W indicates ‘Window Time Base’. The

Basic Operation

oscilloscope also has an arrow icon at the top of the graticule to indicate the horizontal position.

1. HORIZONTAL POSITION Knob: Used to control the trigger position against the screen center. Push this button to reset the trigger point back to the screen center.

AN: Used to set the horizontal position as zero.

2. Each option in HORIZ MENU is described as follows.

Options Settings Comments

Window Control

Major Window Minor Window

Selects the major or minor window in dual-window mode. The window is highlighted once selected. Press this option button in single-window mode to enter the daul-window mode.

Mark

Right arrow Left arrow Set/Clear Clear All

This function is usable only in dual-window mode. It sets marks at some waveform record locations that users are interested in, and searches for these marks by right and left arrows. Then it positions the window to this mark for further observation.

Holdoff None

Select this menu and turn the multi-functional knob to adjust the trigger holdoff time within the range of 100ns-10s. Select this menu and push the multi-functional knob to reset the holdoff time with the starting value 100ns.

Autoplay None

This function is usable in dual-window mode. Push this menu button and auto move it from left to right at a specified speed. In the expanded window will display corresponding waveforms until it stops once reaching the rightmost side of the major scan window