e2020 general step tdr training
TRANSCRIPT
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E20/20 Step TDR
Operator Training
January 24, 2012
Revised 11/20/12
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Subject SlidesE20/20 Step TDR and Accessories 1-7About the E20/20 TDR & models 8-10Batteries, primary and alternative 11How TDR’s work and Cable Construction 12-18Power on, LCD Display & Eexample Traces 19-23Keypad & Menu Keys 24-31Function Keys 32-37Advanced Features 38-43ETDR PC Vision 44-51Cleaning E20/20 TDR 52Warranty, Maintenance & Contact Into 53Questions & Acknowledgements 54
Table of Contents
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E20/20 TDR with Soft Carrying Case
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Our Soft CarryingCase is now Standard with allE20/20 TDRModels
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USB CableA-to-Mini B Not Pictured:
CD-ROMQuick Start GuideBasic Guide
N-to-BNC adapter& BNC-to-Alligator Leads
Belt Case
E20/20 TDR & Included Accessories
E20/20N TDR
AC and DC PowerAdapters
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CD-ROMCD FoldersETDR PC VisionTM Software - - MS Windows XP®, Win 7® or Vista® TDR Application Notes - - - - - - 20+ Detailed Notes on TDR uses
Operation Manual - - - - - - - - - Electronic Copy OnlyBasic Guide - - - - - - - - - - - - - Backup to Printed CopyQuick Start Guide - - - - - - - - - Backup to Printed Copy Training PPTs - - - - - - - - - - - - General/Broadcast Training CATV Technician
Telephone TechnicianAlso available at: www.aeatechnology.com
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AC or DC Power and Recharging
12.5 VDC @ 500 mAVehicle running is preferredDC power permits operationOR recharging, but not both
100-240 VAC 50/60 HzAC power permits operation AND Recharging
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Optional AccessoriesN Model Adapters
N-to-TNC N-to-SO239
N-to-SMA Kit
BNC Coax Lead 6 ft (2m)
Test Leads
F Test Lead4ft (1.2m) Quick Connect
DC Power Cord Ext.USB Cable Ext.
Hard Carrying Case
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Shown with BNC & RJ-45 connectorOther connector combinations are:
N onlyF and RJ-45
E20/20 Instrument Layout
Quarter VGA backlit display
High tactile feel & weather resistantkeypad with Function Key LEDs
Rugged ABS plastic case withprop stand on the back
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E20/20B Network Top End
BNC Connector
USB-2 Mini Port
DC Input power jack
ChargingIndicator LED
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RJ-45 Port
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E20/20F Network Model
E20/20N Model
Field ReplaceableF connector
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Battery Installation
CAUTIONNO mixing cells
Same Type & mAhr
BATTERY MENU
Select Alkaline or NiMH/NiCd andenter rated mAhrs
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Meter
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How Does a TDR Work?The same as RADAR
Time
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Cable Velocity and DistanceVelocity is designed in a cable at the time of its manufacture
Velocity is expressed as a fraction of the speed of light
Examples: .66c or 66.7c
Time 2
X Velocity = Distance
20 n Sec 2
X .66c (648,172,800ft/sec) = 6.48 feet
VF or
VPBeware of VF Uncertainty
VoP or
NVP
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Impedance “Z”
Z = 50 OhmsZ = 100 Ohms
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Cable Impedance (Z) and ReflectionsImpedance is a factor of both the conductor and the dielectric of the insulation between the conductor & shield or twisted pairs
Any deviation from the manufactured Z will cause reflections
OpenZo=50 or 100
Z = ∞Ω Open
Z = 0
Zo=50 or 100Short
Short
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Pulse TDR
Pulse TDR
Longer and Longer Dead Zones
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Step TDR = No Dead Zones – Any Range Fault readings in Ohms
Step TDR
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Example Step TDR Reflections
Good Splice
Poor Splice
Mixed Impedances Bridged Tap
Water Split Pair ThatResplits
Pinched Coax
Poor QualityCoax
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910
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What a “Pulse TDR” Cannot See
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ON cycle runs Self Test, Calibration, and Restores last use settings
Input Voltage Detect Warning (>1VAC pk-to-pk or 50VDCOFF cycle saves all settings
Battery Saver shuts down saves all settings
Powering Up/Down
Input over-voltage protection to 250 VAC or DC
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Soft Reset & Hard Power Down Perform Soft Reset if: 1. TDR menu cursors are unresponsive
2. Measurement Screen disorganized 3. Other performance issues
Perform a Hard Power Down if TDR will not turn off normally
Press and hold for 10 secondsThen power on with a Soft Reset
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ENTER Then
“Default Settings” will flashin the splash screen andMeasurement Screen willopen to 0-1KΩ Z Scale
ENTERThen
1 SecPress & Hold 2 Sec Release
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Measurement ScreenCable Type,Impedance, &Velocity
ImpedanceScale
Plot Range
Cursor Data – Feet, Inches or meters and Impedance
1 of 2 Cursors
Blinking LowBattery indicator(~20 minutes power remaining)
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Example E20/20 TDR Traces
Pinched Coax Wet Cable
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Open Coax Shorted Coax
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Coax Shield Fault
Good Splice Bad Splice
Example E20/20 TDR Traces
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Series Resistive Fault
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Menu keysBy name
LED’s indicatesactive Function keys Cable ID tones
for coax &twisted pair
Cell style alpha-numeric entrypad
Keypad
Exits menu andsaves changes
Enters A/N changes,distance marks, &Soft Reset
ON/OFF
Cursors, & dataselectioncontrol
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ENTER
Used to confirm or accept alpha-numeric entries, highlightedlist selections and cursor marked entries for certain features
Soft Reset - Press 5 times fast after pressing ON key to activate.
EscReturn to Measurement Screen from menu or back up one menu level. Saves all menu changes
Keypad Controls
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HELP OVERVIEW
SETUP WIZARDMENU OPERATIONTHE CABLETHE TEST LEADSKEY FUNCTIONS
‘ ‘,’ ‘: SELECT A TOPIC ‘ENTER’:VIEW TOPIC HELP
Help
Step-by-step set up guidance
How the menus work
Cable menu options guide
Test Lead Null guide
Action keys’ LEDs guide
With NO action keys or other menu key selected
Help Key
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Context sensitive help workswith active Function keysor menu keys and cursor selected features and functions
Help
Context Sensitive Help Example
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RANGE CONTROL : INCREASE RANGE : DECREASE RANGE
ADJUSTS THE TOTAL DISTANCEDISPLAYED ON THE TRACE
Range
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METER SETTINGS
BACKLIGHT : HIGHCONTRAST : 9INPUT CHANNEL : COAX INPUTKEYPAD BEEP : ONBATTERY MENU : ABOUT 5.5HRSDATE/TIME :
22 DEC 2011 12:10PM
Meter
Off, Low, Med, & High
Raise for cold, lower for hot
Coax or RJ45 A thru D
Sub menu to change
ON or OFF
Meter Menu
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to open full menu
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TRACE OPTIONS
Z SCALE (OHMS) : 200TRACE RANGE : 50START DISTANCE : 0MICRO FAULT : OFFTEST LEAD NULL : OFFNOISE FILTER : OFF
Trace
20, 50, 100, 200, 500, & 999
10ft – 20Kft (2m – 5Km)
Offsets display range by entry. 0 = TDR connector or Test Lead end if Test Lead Null is ON
ON or OFF (slide 39 for details)ON or OFF
OFF, KINKS ONLY or ALL FAULTS (slides 37 & 38 for details)
Trace Menu
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Memory MenuMemory
MEMORY OPERATIONS
SAVERECALLPRIOR SETTINGS
ENTER MEMORY NAME‘0’ TO ‘9’: DIGIT OR CHARACTER : MOVE EDIT CURSOR : ERASE/START OVER‘ENTER’ : ACCEPT AND CONTINUE
**ENTER NAME* *
1 2 3
4 5 6
7 8 9
Bcksp 0
. , A B C D E F
G H I J K L M N O
PQRS T U V WXYZ
% & =
MEMORY RECALL OPERATION
* * * START OF LIST* * *LMR-400 ANT-2 Z50 VF 85.0RG-58 XMIT-6 Z50 VF 83.5RG-58 XMIT-8 Z50 VF 83.5CAT5 CONTL LINE Z100 VF 72.3LMR-400 ANT-1 Z50 VF 85.0* EMPTY SLOT*SAVED 30 AUG 2011 10:31AMENTER:SELECT SLOT, ESC:QUIT
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Cables Menu
CABLE SELECTION
PICK/EDIT LISTMANUAL ENTRYVELOCITY SRCH.SAMPLE A CABLEDISTANCE UNITS: FEET
SELECTED CABLE:COMSCOPE .625 ZO 75 VF 87.0
Cables
Compute a cable’s VFby testing a sample ofknown length – guidedprocess
ENTER THE CABLE MANUALLY
DESCRIPTION : SAMPLEDCABLE Z0 : 50VELOCITY FACT. : 67.6
Find a cable’s VF from knownpoints – guided process
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CABLES LIST***START OF LIST***GENERIC RG8/U Z0 52 VF 66.0TIMES RG6/U Z0 75 VF 66.0IW-CAT 3 24AWG Z0 100 VF 67.0IW-CAT 5 24AWG Z0 100 VF 70.0IW-CAT 5E 24AWG Z0 100 VF 72.0
‘ENTER’:SELECT THIS CABLE‘BCKSP’: EDIT CABLE ‘ESC’: QUIT
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Range
Minimum 10 ft or 2m
Maximum 20Kft or 5Km
Increase/decrease display range
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Zoom
Zoom Limits: Minimum 10ft (2m) to Maximum Set Range
Zooms on active cursor
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Z Scale
Scales: 20, 50, 100, 200, 500, & 1KΩ
On lower Scale settings cable Z0 will stay centered
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Single active cursor has LED litRules when both cursors are on screen:1. Both LEDs are lit2. Last cursor key touched is active3. Last cursor key touched appears on
LCD with differential readings to othercursor’s – distance and Ohms
Crsr 1 Crsr 2Crsr 2
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Tone
Tones generated on coax orselected twisted pair
Most standard inductiveamplifiers (probes) will pickup the tonesTDR trace is not availableWhile toning the cable.Battery Saver is suspended
Meter INPUT CHANNEL:
TONE GENERATOR‘ ‘,’ ‘: SELECT A DIFFERENT TONE‘BCKSP’: VIEW THE LIST OF TONES‘TONE’: EXIT TO TDR MODE
INJECTING A WARBLE TONE ONTO:RJ45 CH A
WARBLEPRESENT VALUE: 900/1100HZ Press for a menu of
TonesBcksp
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TONE GENERATOR LIST900/1100 HZ WARBLE977.5 HZ STEADY977.5 HZ PULSED850 HZ STEADY850 HZ PULSED577 HZ STEADY577 HZ PULSEDPOCKET STEADYPOCKET PULSED
Future models will accommodatePocket Toners
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E20/20 TDR Advanced Features
TraceMICRO FAULT – Locate minute defects in coaxTEST LEAD NULL – Remove unknown test lead length from measurement
CablesVELOCITY SEARCH – Pin-Point an installed cable’s
true VF based on cable’s known length or known distance to an event.
SAMPLE A CABLE – Find the VF for a cable sample to apply to all the cable in that box, reel or lot number.
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Micro Fault
Trace MICRO FAULT – KINKS ONLY
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For small kinks and crushesin coax cablesTDR’s normal display will
shift to an amplified reflectiondisplay with Z0 as base line . In this example a fault barelyseen in the normal impedance display shows up clearly.
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Micro FaultTrace MICRO FAULT – ALL FAULTS
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Mainly for coax or highquality twisted pairsTDR’s normal display will
shift to an amplified reflectionDisplay Z0 centered, no dribble-up & reduced Z Scale. In this example a fault barelySeen in the normal impedance display shows up clearly.
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Test Lead Null
Trace
TRACE OPTIONS
Z SCALE (OHMS) : 200TRACE RANGE : 50START DISTANCE : 0MICRO FAULT : OFFTEST LEAD NULL : OFFNOISE FILTER : OFF‘ ‘=OFF, ‘ ‘=ON,”ENTER”=SET NULL
Use a cursor to mark theEnd of the test lead and Press to set the length
ENTER
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Velocity SearchWhen to use – If you have an installed cable with known lengths either to the end or an event on the cable. E20/20 willcompute the cable’s VF based on marking the distance with acursor, then use the to adjust the cable end or event tothat distance.
Press when end ofcable and cursor are alignedto use the modified VF andreturn to Measurement Screen
ENTER
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Sample a CableWhen to use – If you have a cable sample 10-50ft (3-15m)with an accurately measured length, and plan to install or test cable’s from it’s same reel or box.
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Mark the end of the sample.Press and enter ft then in.Press TDR computes VFENTER
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Questions on E20/20 TDR?
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ETDR PC VisionTM SoftwareOperates on: Windows XP®, Windows 7® or Vista® Platforms
Upload saved or current traces to the PC
Archive the traces on the PC or other memory media
No platform license – Load on any number of PC’s
Upload and Download Cable Lists to the E20/20 TDR
Upload and Download instrument setups to the E20/20 TDR
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Getting Started with ETDR PC Vision1. Locate ETDR PC Vision folder on the enclosed CD-ROM
or download it from www.aeatechnology.com
2. Turn on the E20/20 TDR and wait for the MeasurementScreen (will not communicate if off or in menus).
3. Connect the TDR and PC using the supplied USB Cable
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4. Double-click the icon on the desktop to open application
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User Friendly Communications SetupETDR PC Vision automatically scans for the E20/20 TDR when it opens
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FTDI DriversMay need to beinstalled. Driversare located on enclosed CDand instructionsare in the Operator Manual.
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Get Trace Tab
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Stored Traces Tab
ANTENNA 2 50 78.6 12/30/11 11:58ANTENNA 5 50 78.6 12/30/11 12:26CON. 401 100 67.7 1/3/12 07:39CON. 331 100 67.7 1/3/12 08:38SENSOR 6-1 100 72.3 1/5/12 09:11SENSOR 6-2 100 72.3 1/5/12 09:15FLIR 1 75 74.8 1/10/12 10:27
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Press first toupload a listof stored traces
Direct save TDRmemory to PCfolderCaution – There is NO UNDELETE
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Graphic Plot Screen
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Setup Tab
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Press eitherto obtainvalid data(gray text is not valid)
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Cables TabRead the CableList from TDRor from a stored list on thePC
Use these keys and “Select Cable Values” to edit the list
Write the CableList to the TDRor to a stored liston the PC
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Cleaning Your 20/20 TDR1. Always spray cleaners and rinse water on a soft cloth, do NOT
spray directly on the TDR
Soft CasesThe soft case should be cleaned the same as the instrument. Usea soft bush to remove tough dirt. Do NOT immerse in water or dryin a dryer. Wash and Dry separately, both instrument and case shouldbe dry before enclosing the instrument in the case.
2. Typical Grime – Use a mild non-abrasive detergent like 409® in water or glass cleaner (non-ammonia) and rinse water to clean3. Cable Gel – User liquid “citrus” cleaner to remove4. Tar, creosote or adhesives – Use WD40® followed with mild
detergent and water
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Maintenance, Service and WarrantyBasic Guide or Operator Manual, Maintenance, Service & Warranty.
Warranty – One year against material & workmanship defects
Questions, By all means – Contact us:
AEA Technology, Inc.5933 Sea Lion Place, Ste 112Carlsbad, CA 92010Tel: 800-258-7805 or +1-760-931-8979Fax: +1-760-931-8969
www.aeatechnology.co
mEmail
Application Notes
Operating Manuals
TDR PC Vision
Data Sheets
See “User Troubleshooting Guide”
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Questionson
E20/20 Step TDR ETDR PC Vision software?
Windows 7, Vista, and Windows XP are registered trademarks of Microsoft® Corp.409 is a registered trademark of Clorox® Corp.WD-40 is a registered trademark of WD-40® company
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