ENDEAVOUR ET8744 Manuale utente

ET8744 Dual-Channel

Tablet Oscilloscope

User Manual

Sep 2020 edition V1.0.1

This product is under the protection of the patent rights, including ones which have

already obtained the patent rights and those which are applied for. The information in this

manual will replace all materials published.

The information in this manual was correct at the time of printing. However, Endeavour

Tools will continue to improve products and reserves the rights to change specification

at any time without notice.

Endeavour Tools

50 Jellico Drive

Scoresby VIC 3179

Tel: +61 3 9753 3800

Web: www.endeavourtools.com.au

Fax: +61 3 9753 3933

E-mail: [email protected]

General Warranty

Wewarrant that the product will be free from defects in materials and

workmanship for aperiod of 3years from the date of purchase of the product by

the original purchaser from the our Company. The warranty period for accessories

such as probes, adapter 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

1. General Safety Requirements...........................................................................1

2. Safety Terms and Symbols ...............................................................................2

3. Junior User Guidebook.....................................................................................4

Introduction to the Structure of the Oscilloscope ............................................................. 5

Front Panel...............................................................................................................................5

Side Panel ................................................................................................................................6

Top Panel .................................................................................................................................7

User Interface Introduction ...............................................................................................7

How to Implement the General Inspection.......................................................................9

How to Implement the Function Inspection....................................................................10

How to Implement the Probe Compensation .................................................................10

How to Set the Probe Attenuation Coefficient................................................................11

How to Use the Probe Safely ......................................................................................... 12

How to Implement Self-calibration.................................................................................. 13

Introduction to the Vertical System.................................................................................13

Introduction to the Horizontal System ............................................................................14

Introduction to the Trigger System .................................................................................15

Touchscreen Controls..................................................................................................... 16

4. Advanced User Guidebook .............................................................................22

How to Set the Vertical System......................................................................................23

How to Set the Horizontal System..................................................................................25

Waveform Horizontal Zooming ...............................................................................................26

Magnifier（For specific models）...........................................................................................26

How to Operate the Function Menu ...............................................................................28

Set the Trigger/Decoding System...........................................................................................28

Single Trigger..........................................................................................................................................................29

Logic Trigger...........................................................................................................................................................37

Bus Trigger..............................................................................................................................................................38

Bus Decoding (Optional).......................................................................................................................................44

Implement Sampling Setup.....................................................................................................48

Implement the Auxiliary System Function Setting...................................................................50

Set the Display System...........................................................................................................53

Save and Recall a Waveform .................................................................................................55

Record/Playback Waveforms..................................................................................................62

Clone and Recall a waveform.................................................................................................66

Update your Instrument Firmware ..........................................................................................69

Measure Automatically............................................................................................................71

Customize an Automatic Measurement..................................................................................75

Measure with Cursors.............................................................................................................76

Use Mathematical Manipulation Function...............................................................................79

Waveform math......................................................................................................................................................80

User defined function............................................................................................................................................81

Digital Filter..............................................................................................................................................................81

Use Autoscale function...........................................................................................................82

Use HOR function...................................................................................................................83

Use FFT function ....................................................................................................................83

Use XY Format .......................................................................................................................90

Use Pass/Fail function............................................................................................................91

Use Executive Buttons............................................................................................................92

Print the Screen Image ...........................................................................................................94

5. Use the Multimeter..........................................................................................95

Input Terminals ...............................................................................................................95

DMM Menu...................................................................................................................... 95

DMM Information Window ..............................................................................................96

Making Multimeter Measurements .................................................................................97

Measuring AC or DC Current..................................................................................................97

Measuring AC or DC Voltage..................................................................................................97

Measuring Resistance ............................................................................................................97

Testing Diodes........................................................................................................................97

Testing for Continuity..............................................................................................................98

Measuring Capacitance..........................................................................................................98

Multimeter Features........................................................................................................98

Data Hold Mode......................................................................................................................98

Making Relative Measurements..............................................................................................98

Information Display.................................................................................................................99

Auto or Manual Range............................................................................................................99

Multimeter Recorder.......................................................................................................99

6. Communication with PC................................................................................102

Using USB Port.............................................................................................................102

Using LAN Port.............................................................................................................103

Connect directly....................................................................................................................103

Connect through a router......................................................................................................104

Using Wi-Fi to Connect with PC...................................................................................106

Connect with PC as Wi-Fi Access Point...............................................................................106

Connect with PC as Wi-Fi Station.........................................................................................108

7. Communication with Android Device via Wi-Fi (Optional).............................. 110

How to Connect ............................................................................................................110

Connect with APP as Wi-Fi Access Point.............................................................................110

Connect with APP as Wi-Fi Station.......................................................................................112

User Interface................................................................................................................114

iii

Gestures Control...........................................................................................................116

8. Demonstration .............................................................................................. 117

Example 1: Measurement a Simple Signal ..................................................................117

Example 2: Gain of a Amplifier in a Metering Circuit ...................................................118

Example 3: Capturing a Single Signal..........................................................................119

Example 4: Analyze the Details of a Signal .................................................................121

Example 5: Application of X-Y Function.......................................................................122

Example 6: Video Signal Trigger..................................................................................124

9. Troubleshooting ............................................................................................125

10. Technical Specifications..............................................................................126

Oscilloscope..................................................................................................................126

Trigger...........................................................................................................................129

Multimeter .....................................................................................................................131

General Technical Specifications.................................................................................131

11. Appendix..................................................................................................... 133

Appendix A: Enclosure .................................................................................................133

Appendix B: General Care and Cleaning.....................................................................133

Appendix C: Battery Using Guide.................................................................................134

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.

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.

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.

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 two channels of the oscilloscope are not electrically isolated. The

channels should adopt a common ground during measuring. To prevent

2.Safety Terms and Symbols

short circuits, the 2 probe grounds must not be connected to 2 different

non-isolated DC levels.

The diagram of the oscilloscope ground wire connection:

Ground Clip

Signal Input

Electrical Outlet

Probe Oscilloscope AC Adapter

The diagram of the ground wire connection when the battery-powered

oscilloscope is connected to the AC-powered PC through the ports:

Ground Clip

Signal Input

Oscilloscope

(Battery-power) PC Electrical OutletProbe

USB/LAN Cable

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.

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 a self-calibration

Introduction to the vertical system

Introduction to the horizontal system

Introduction to the trigger system

Touchscreen controls

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