AEA Technology E20 Guía del usuario

Step Time Domain Reflectometers

E20/20

TDR and Avionics TDR

Step Time Domain Reflectometers

TDR and Avionics TDR

all models

Proprietary Information

Reproduction, dissemination, or use of information contained herein for purposes other than operation

and/or maintenance is prohibited without the written authorization from AEA Technology, Inc.

written consent from AEA Technology, Inc.

E20/20 TDRTM, Avionics TDRTM, ETDR PC VisionTM and the AEA Logos are trademarks of AEA

Technology, Inc.

Cable data available in this manual, TDR firmware, or ETDR PC Vision software, TDR training and

training aids reflects information published by the respective manufacturers. This information is believed

to be accurate at the time of publication, but can not be guaranteed. Please consult specific cable

manufacturer’s website or catalogs and specification sheets for up-to-date information.

Acknowledgements:

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Microsoft Corp.

WD-40 is a registered trademark of WD-40 Company

409 cleaner is a registered trademark of Clorox Corp.

FTDI Drivers are products of Future Technology Devices International, Ltd.

Popper Clips (Telco Clips) are products of J. S. Popper Company

Alpha, Andrews, Belden, BerkTek, Commscope, Superior-Essex, Times Fiber, and other cable

manufacturer’s names appearing in this manual or TDR firmware and software are trademarks and

property of their respective owners. AEA Technology, Inc. is not sponsored by, and is not affiliated with

any of these companies.

6021-3000 Nov, 2021

Table of Contents

Section 1. Getting Started

Warnings and Operating Precautions………………………………………………… I

Operating Guidance Documents............................................................................ 1

Keypad and LCD Display........................................................................................ 2

Connector Configurations....................................................................................... 3

Measurement Screen............................................................................................. 4

Keypad .................................................................................................................. 4

ON/OFF Key........................................................................................................... 4

Soft Reset............................................................................................................... 4

Hard Power Down.................................................................................................. 5

Arrow, Escape & Enter Keys................................................................................... 5

Menu Keys.............................................................................................................. 6

Help................................................................................................................. 6

Meter.............................................................................................................. 6

Trace............................................................................................................... 7

Memory........................................................................................................... 7

Cable............................................................................................................... 7

Function Keys......................................................................................................... 8

Range.............................................................................................................. 8

Zoom............................................................................................................... 8

Z Scale............................................................................................................. 8

Cursors 1 & 2................................................................................................... 8

Tone................................................................................................................ 9

Alpha-numeric Keys & Backspace key................................................................... 10

Section 2. Setup and Measuring Cables

General.................................................................................................................... 11

Step TDR Operation................................................................................................ 11

Impedance Effects.................................................................................................. 12

Velocity Factor (VF)................................................................................................ 12

Loop Resistance and Dribble up............................................................................ 12

Menu Navigation Guide.......................................................................................... 13

Setup Wizard.......................................................................................................... 13

Manual Setups........................................................................................................ 14

Help................................................................................................................. 14

Meter............................................................................................................... 14

Battery Menu.................................................................................................. 14

Charger Status................................................................................................ 15

Date/Time Menu............................................................................................. 15

Trace............................................................................................................... 16

Z Scale............................................................................................................ 16

Trace Range................................................................................................... 16

Start Distance.................................................................................................. 16

Microfault......................................................................................................... 16

Test Lead Null................................................................................................. 17

Noise Filter....................................................................................................... 18

Cables............................................................................................................. 18

Pick/Edit List................................................................................................... 18

Manual Entry................................................................................................... 18

Velocity Search................................................................................................ 18

Sample a Cable............................................................................................... 19

Distance Units................................................................................................. 19

Selected Cable................................................................................................ 19

Measurement Screen and Controls (Function Keys)............................................. 20

Range.............................................................................................................. 20

Z Scale............................................................................................................ 20

CRSR 1 & CRSR 2.......................................................................................... 21

Tone…………………………………………………………………...................... 21

Example Traces and Faults…………………………………………………............... 22

Section 3. Memory and TDR PC Vision

Saving and Recalling Traces.................................................................................. 25

General................................................................................................................... 25

Saving Traces......................................................................................................... 25

Recall Traces.......................................................................................................... 26

Restore Prior Settings..............................................................................................27

Delete Traces………............................................................................................... 27

ETDR PC Vision Software...................................................................................... 27

Operating Systems................................................................................................. 27

Installation.............................................................................................................. 28

Run ETDR PC Vision............................................................................................. 28

Connection Error Correction................................................................................... 29

Com Port Utilities.................................................................................................... 29

Check List to Establish Communications............................................................... 29

Get Trace Tab........................................................................................................ 30

Stored Traces Tab.................................................................................................. 30

Open Trace Plot..................................................................................................... 31

Plot Controls........................................................................................................... 32

TDR Setup and Cables Tabs................................................................................. 32

Section 4. Maintenance, Service, Warranty & Accessories

Limited Warranty.................................................................................................... 34

User Troubleshooting Guide.................................................................................. 35

Power Troubleshooting Guide................................................................................ 36

Contact Us............................................................................................................. 36

Specifications......................................................................................................... 37

Accessories, Wiring Guide, Resolution Tables, and Cold Weather Operations

References............................................................................................................ 41

WARNING

Explosive atmosphere testing was accomplished on our TDRs to meet MIL-SPEC

810G, Method 511.5, Procedure 1. The E20/20 TDR and Avionics TDR are free of any

internal ignition sources. However, the following ignition sources are a potential spark

hazard and appropriate precautions apply:

DC Charging Port and A/C Adapter

Charging the E20/20 TDR or Avionics TDR or operating while using the A/C or D/C

adapters can create external sparks. Connecting or use of these power sources in an

explosive atmosphere is dangerous and should never be attempted. Always charge the

TDRs away from any explosive atmosphere. Use ONLY internal battery power if the

presence of explosive fumes is a potential hazard.

Coax and RJ-45 Test Ports

The presence of any voltage, from an applied source or static build-up on cables, can

cause an ignition spark when the cable is connected to the TDR. Caution should be

taken to ensure cables are free of any voltages or static charge prior to connecting the

TDR in a potentially explosive atmosphere.

Operating Precautions

1. The TDRs are designed for recharging NiMH or NiCd AA cells only. Do NOT

install and attempt to charge Lion cells as overheating or fire may result. The

resulting damage is not covered under warranty.

2. Alkaline cells may be used safely in the TDR, but when installed go to the Battery

Menu and change the Battery Type to ALKALINE or NONE to turn off the

charger. Attempting to charge alkaline or carbon cells may result in the cells

outgassing. The resulting damage is not covered under warranty.

3. The TDR has input voltage protection and a high voltage detection system which

will warn if connected to more than 50VDC or 1 VAC pk-to-pk. Use caution with

the cable if this detection warning appears in the display as the actual voltage will

be unknown.

4. The TDR is splash resistant and designed to work for relatively long periods in

rain depending on intensity. It is not designed to be immersed in water.

III

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Section 1 Getting Started

The E20/20 Step TDRs and Avionics TDR have three operational guidance documents:

Quick Start Guide – Laminated tri-fold guide designed to be carried in the

belt case and provide quick reminders on how to navigate the menus

and operate functions on the TDR.

Basic Guide – This printed booklet with basic information for setting up and

using the TDR. This booklet contains more information and step-by-step

guidance than the Quick Start Guide, but is not as complete and detailed

as the Operating Manual.

Operating Manual – This book is available on the CD included with the

TDR or at www.aeatechnology.com. It contains complete operating

instructions, testing examples, full specifications, troubleshooting guides,

warranty information, and cleaning instructions. It’s a PDF document

formatted for local printing.

Warning and Operating Precautions

If you have not already done so, please read the Explosive Atmosphere Warning and other

operating precautions on page III right after the Table of Contents.

Basic and Advanced Training for the E20/20 TDR’s and Avionics TDR is available in Microsoft

Power Point

Format on the CD included with the TDR and our web site at

www.aeatechnology.com. Customers are also welcome to call or email us at

techsupport@aeatechnology.com to get assistance with getting started, ask operational

questions, or questions about test results.

Group training via web conference is also available upon request.

Both the E20/20 TDRs and Avionics TDR operate essentially the same. Differences between

these TDRs will be pointed out in all the documents where appropriate. Most differences are

identified in the Appendices.

Keypad and Display (same for both E20/20 TDRs and Avionics TDR

Function Keys with

active LED indication

Directional Control

Keys work with menus

and active functions

Top Connectors - See

Figure 1-2 for all available

connector combinations

Ruggedized

BS Plastic Case

Quarter VG

Backlit LCD

Menu Keys

Alpha-numeric Keypad

and Backspace Key

ON/OFF Key

ENTE Key

to accept

alpha-numeric

entries

Escape Key

Exits menus

Measurement

Screen or one

level up in

menus.

Changes are

saved

Figure 1-1

Top End Connector Configurations

E20/20N TDR

Part Number 6021-5000 – Broadcast Cable List and N-to-BNC adapter included.

E20/20F Network (F and RJ-45 Connectors)

Part Number 6021-5041 – CATV Cable List

Part Number 6021-5042 – Telco Cable List

E20/20B Network (BNC and RJ-45 Connectors)

Part Number 6021-5053 – VDV/RF Cable List

Avionics TDR

Part Number 6021-5054 – TDR with Avionics Cable List

Part Number 6021-5154 – TDR Kit with Avionics Cable List

Figure 1-2

Measurement Screen

Figure 1-3

Keypad

ON/OFF key – Press once to turn the TDR on. This will restore all the previous

settings from the last time it was turned off. Press once to turn the TDR off.

Soft Reset

To perform a Soft Reset se the following instructions:

1. With TDR off, press and hold the ENTER Key through step 3

2. Press the ON/OFF Key for 1 second

3. Wait 2 seconds and release the ENTER Key

Look for the words “Default Settings” in the splash screens and note the Measurement Screen

opens Z Scale = 1KΩ, and “MY CABLE” cable type. This indicate a successful Soft Reset. This

action will perform firmware housekeeping and reset the TDR to factory default settings. To see

more about when to use the Soft Reset refer to the ENTER key instructions or consult the

Operating Manual.

Note: If the TDR’s menu cursors stop responding or the measurement screen does not open

correctly the TDR’s firmware may need to be reset. The Soft Reset (similar to rebooting a PC)

function performs several housekeeping functions and restores the TDR to factory default values.

It will NOT erase saved traces or changes to the Cable List. However, the battery menu’s

remaining operating time will be reset. This will need 2-3 re-charges for the smart charger to

recalculate the battery’s operating time. The low battery icon’s operation is not affected. It will

still appear and blink to warn about a low battery condition. See figure 1-3.

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