AEMC CA7026 User manual

CA7026

FAULT MAPPER PRO®
GRAPHICAL TDR

FAULT MAPPER PRO®
TDR GRÁFICO
ENGLISH User Manual
ESPAÑOL Manual de Instrucciones
PORTUGUESE
Manual de Usuário

Statement of Compliance
Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
certifies that this instrument has been calibrated
using standards and instruments traceable to
international standards.
We guarantee that at the time of shipping your
instrument has met its published specifications.
The recommended calibration interval for this
instrument is 12 months and begins on the date of
receipt by the customer. For recalibration, please
use our calibration services. Refer to our repair
and calibration section at www.aemc.com.
Serial #: ________________________________
Catalog #: 2127.81
Model #: CA7026
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
Chauvin Arnoux®, Inc.
d.b.a AEMC®Instruments
www.aemc.com

Table of Contents
1. INTRODUCTION............................................................................... 2
1.1 International Electrical Symbols................................................2
1.2 Receiving Your Shipment..........................................................3
1.3 Ordering Information.................................................................3
1.3.1 Accessories and Replacement Parts............................3
2. PRODUCT FEATURES ...................................................................... 4
2.1 Description................................................................................4
2.2 Fault Mapper Pro Features.......................................................5
3. SPECIFICATIONS............................................................................. 6
4. OPERATION .................................................................................... 8
4.1 Principles of Operation .............................................................8
4.2 Accuracy and Velocity of Propagation (Vp) ..............................8
4.3 Getting Started..........................................................................9
4.4 Set-up Mode .............................................................................9
4.5 Backlight .................................................................................10
4.6 Tone Generator.......................................................................10
4.7 Determining and Measuring Vp Values ..................................11
4.8 Adjusting the Vp Value............................................................11
4.9 Attaching a Cable to the Fault Mapper Pro.............................12
4.10 Testing a Cable.......................................................................13
4.11 Single Shot and Continuous Scanning Modes .......................14
5. MAINTENANCE ............................................................................. 15
5.1 Changing the Battery..............................................................15
5.2 Cleaning..................................................................................15
5.3 Storage ...................................................................................15
Repair and Calibration...........................................................................16
Technical and Sales Assistance ............................................................16
Limited Warranty ...................................................................................17
Warranty Repairs...................................................................................17

2 Fault Mapper Pro Model CA7026
CHAPTER 1
INTRODUCTION
Warning
● This instrument meets the safety requirements of IEC61010-
1:1995.
● TheModelCA7026isdesignedforuseonde-energizedcircuits
only.
● Connection to line voltages will damage the instrument and
couldbehazardoustotheoperator.
● This instrument is protected against connection to telecom
networkvoltagesaccordingtoEN61326-1.
● Safetyistheresponsibilityoftheoperator.
1.1 International Electrical Symbols
Thissymbolsigniesthattheinstrumentisprotectedbydoubleor
reinforcedinsulation.Useonlyspeciedreplacementpartswhen
servicing the instrument.
This symbol on the instrument indicates a WARNING and that
the operator must refer to the user manual for instructions before
operating the instrument. In this manual, the symbol preceding
instructions indicates that if the instructions are not followed,
bodily injury, installation/sample and product damage may result.
Riskofelectricshock.Thevoltageatthepartsmarkedwiththis
symbol may be dangerous.

Fault Mapper Pro Model CA7026 3
1.2 Receiving Your Shipment
Upon receiving your shipment, make sure that the contents are consis-
tentwiththepackinglist.Notifyyourdistributorofanymissingitems.If
theequipmentappearstobedamaged,leaclaimimmediatelywiththe
carrier and notify your distributor at once, giving a detailed description of
any damage. Save the damaged packing container to substantiate your
claim.
1.3 Ordering Information
Fault Mapper Pro Model CA7026......................................Cat. #2127.81
Includes carrying case, BNC pigtail with alligator clips, 4x1.5V AA batter-
ies, user manual and product warranty card.
1.3.1 Accessories and Replacement Parts
Tone Receiver / Cable Tracer Model TR03 .........................Cat. #2127.76

4 Fault Mapper Pro Model CA7026
CHAPTER 2
PRODUCT FEATURES
2.1 Description
TheFaultMapperProisahand-heldgraphicalTDR(TimeDomainReec-
tometer)designedforidentifyingandlocatingfaultsonpowerandcom-
munication cables, given access to one end only.
The Fault Mapper Pro measures cable length and indicates the distance
to cable faults to a range of 11700 ft (3500m) on virtually any type of cable.
TheFaultMapperProshowsareectionproleofthecableundertestas
an oscilloscope-like trace on a 128 x 64 pixel Graphical LCD. A movable
cursorcanbealignedwithfaultsandthedistancesreadoff.
TheFaultMapperProhasaselectableimpedancefacilityallowingittobe
matched to the cable under test. This automatically eliminates the trans-
missionpulsefromthedisplay,enablingeasieridenticationofshortrange
faults.
The Velocity of Propagation (Vp) is adjustable between 0% and 99%
enabling accurate calibration to the cable under test.
The Fault Mapper Pro incorporates an oscillating tone tracer, which is
detectablewithastandardtonetracer,foruseinthetracingandidentica-
tion of cable pairs.
Features:
 Hand-heldgraphicalTDR(TimeDomainReectometer)
Measures cable length and indicates distance to faults to a range of
11700 ft (3500m)
Graphical LCD
 Easyidenticationofshortrangefaults
 Emits an audible tone, used to trace and identify the type of fault

Fault Mapper Pro Model CA7026 5
2.2 Fault Mapper Pro Features
2
3
4
5
6
7
8
FAULT MAPPER PRO
MODEL CA7026
TEST / TDR /
Graphical TDR
AEMC Instruments
Fault Mapper Pro Vx.x
Vp=70% Z=100Ω
1
1. BNCinputconnector
2. Graphical LCD
3. Cable select and Vp (Velocity of Propagation) decrement button
4. Test/function select button
5. Backlight button
6. Cable select and Vp (Velocity of Propagation) increment button
7. Mode select button (TDR/Tone tracer)
8. PowerON/OFFbutton

6 Fault Mapper Pro Model CA7026
CHAPTER 3
SPECIFICATIONS
Ranges @ Vp=70%: 100, 220, 440, 870, 1750 & 3500 m
330, 670, 1470, 2900, 5830 & 11,700 ft
Resolution: Approximately1%ofselectedrange
Accuracy*: ±1%ofrange
Range Selection: Automatic range selection against
cursor position
Minimum Cable Length: 50 ft (15m)
Sensitivity: Minimum 3 pixel return on a fault at
6000 ft (2000m)
Vp (Velocity of Propagation): Adjustablefrom0%to99%in
  1%steps
Output Pulse: +5V into an open circuit or +1.5V
into 50Ωload; 25ns min to 2.15µs
dependent on range
Cable Impedance: Selectablebetween50,75&100Ω
Display Resolution: 128 x 64 pixel Graphical LCD
Display Backlight: Electroluminescent
Tone Generator: Oscillatingtone810Hz-1110Hz
Voltage Warning: Triggers @ >10V (AC/DC)
Scan Rate: Single Shot or 6.7 pulses per
second (user selectable)
Power Supply: 4 x 1.5V AA alkaline batteries
*Measurement accuracy of ±1% assumes the instrument setting for velocity of propagation
(Vp) of the cable under test to be accurately set, and homogeneity of the velocity of propaga-
tion (Vp) along the cable length. Accurate positioning of the cursor is also required.

Fault Mapper Pro Model CA7026 7
Auto-off: After 3 minutes
Battery Life: Standby mode >4000 hrs
Continuous scan (6.7/sec) >7.5 hrs
Storage Temperature: -4 to 158°F (-20 to 70°C)
  5to95%RHnon-condensing
Operating Temperature: 32 to 112°F (0 to 40°C)
  5to95%RHnon-condensing
Altitude: 6000 ft (2000m) max
Dimensions: 6.5 x 3.5 x 1.5" (165 x 90 x 37mm)
Weight: 12oz(350g)
Index of Protection: IP54
Safety: IEC61010-1
  EN60950
EMC: EN61326-1
CE: CompliantwithcurrentEUdirectives
*Specications are subject to change without notice.

8 Fault Mapper Pro Model CA7026
CHAPTER 4
OPERATION
4.1 Principles of Operation
TheFaultMapperProworksbymeasuringthetimetakenforasignalto
travel to the far end of the cable under test, or to an intermediate fault and
return.ThevelocityatwhichthesignaltravelsVp(VelocityofPropagation)
willdependonthecharacteristicsofthecable.
Based on the selected Vp and the measured travel time of the test pulse,
the Fault Mapper Pro calculates and displays impedance anomalies and
their distances along the cable.
4.2 Accuracy and Velocity of Propagation (Vp)
The Fault Mapper Pro measures distances to faults and cable lengths to
anaccuracyof±1%.Thismeasurementaccuracyisbaseduponthecor-
rect value of Vp being used for the cable under test, and homogeneity of
the Vp along the cable length.
If the Vp is set incorrectly by the operator, or the Vp varies along the length
ofthecable,thenadditionalerrorswillbeincurredandthemeasurement
accuracywillbeaffected.
See § 4.8 for setting the Vp.
NOTE: The Vp is less well defined with unshielded multi-conductor cable,
including power cable, and is lower when a cable is tightly wound on a drum
than when it is installed in a linear fashion.
Correct measurement of fault distances is also dependent on the cursor being
positioned accurately by the operator. When locating faults with the Fault
Mapper Pro the cursor should be positioned at the beginning of the feature on
thecablewaveformasshownbelow.
Vp=72% Z=100Ω
621ft

Fault Mapper Pro Model CA7026 9
4.3 Getting Started
The instrument is switched on and off using the green power button ,
foundonthelowerrightsideofthefrontpanel.Whentheunitisrstswitched
onitwilldisplaytheopeningscreengivingthesoftwareversion,thecurrently
selected Vp (Velocity of Propagation), cable impedance and battery status
indicator.
AEMC Instruments
Fault Mapper Pro V1.0
Vp=70% Z=100Ω
4.4 Set-up Mode
Hold down the
TDR /
button, then press the
TEST /
button to enter
set-up mode.
Vp=72%
Z=100Ω
Feet
Contrast
>
• Vpcanbesetintherange1%to99%(see§4.8)
• Z,thecableimpedance,canbesetto50,75or100Ω
• MeasurementunitscanbesettoFeetorMeters
• Thedisplaycontrastcanadjusted
Press the
TEST /
button to move the line selector (>)downthescreen.
Press the and buttons to change the setting of the line selected.
Press the
TDR /
button again to save changes and exit set-up mode.
WhentheFaultMapperProisturnedoff,itwillrememberthecur-
rent set-up parameters.
Thisfeatureisusefulinthesituationwheretheoperatorisper-
forming many tests on the same type of cable.

10 Fault Mapper Pro Model CA7026
4.5 Backlight
Thedisplaybacklightisswitchedonandoffwiththe button.
4.6 Tone Generator
The Fault Mapper Pro may also be used as a tone generator, to trace and
identifycablesandwires.Theuserwillneedacabletonetracer,suchas
the AEMC Tone Receiver/Cable Tracer Model TR03 (Cat. #2127.76) or
equivalent.
Pressing the
TDR /
buttonwillinjectawarbling(oscillating)toneintothe
cableorlinkundertest.Whenset,thefollowingwillbedisplayed:
* * * * * * * * * * * * * * * * * * *
* * * * * * * * * * * * * * * * * * *
Warble Tone
Theinjectedsignaloscillatesbetween810Hzand1110Hz,sixtimesper
second.
NOTE: The auto-off function is disabled in Tone Generator mode, so that
thetonecanbeinjectedintoacableforanextendedperiodoftimewhile
tracing takes place.
See §4.10 for attaching a cable to the Fault Mapper Pro

Fault Mapper Pro Model CA7026 11
4.7 Determining and Measuring Vp Values
Vp, or Velocity of Propagation, values are characteristic of each cable
type and brand. The Vp is used to measure the length of a cable and to
measure a fault location. The more accurate the Vp, the more accurate the
measurementresultwillbe.
The cable manufacturer may list the Vp on their specication sheet or
maybeabletoprovideitwhenasked.Sometimesthisvalueisnotreadily
available,ortheusermaywishtodetermineitspecicallytocompensate
forcablebatchvariationsorforspecialcableapplications.Thisisquite
easy:
1. Take a cable sample of exact length increments (ft or m) longer than
60 ft (20m).
2. Measure the exact length of the cable using a tape measure.
3. ConnectoneendofthecabletotheFaultMapperPro(see§4.9).
Leavetheendunterminatedandmakesurethewiresdonotshortto
each other.
4. Measure the length and adjust the Vp until the exact length is displayed.
5. When the exact length is displayed, Vp is established.
4.8 Adjusting the Vp Value
To adjust the Vp, press and hold the
TDR /
button and press the
TEST /
button to enter the setup mode. Release both buttons. Press the
TEST /
button until the pointer (>) is next to Vp.
Nextusethe and buttons to adjust the Vp to the desired percentage.
Press the
TDR /
button to exit the set up mode.

12 Fault Mapper Pro Model CA7026
4.9 Attaching a Cable to the Fault Mapper Pro
1. Makesurethatthereisnopowersupplyorequipmentattachedtothe
cable to be tested.
2. Checkthatthefarendofthecableiseitheropenorshorted(nottted
witharesistivetermination).
3. Attach the Fault Mapper Pro to one end of the cable to be tested.
ThecableattachmentisviaaBNCconnectorlocatedatthetopoftheunit.
For unterminated cables use the alligator clip attachment provided.
Coaxial Cable: Connect the Black clip to the center wire and the
Red clip to the shield/screen.
Shielded Cable: Connect the Black clip to a wire adjacent to the
shield and the Red clip to the shield.
Twisted Pair: Separate out one pair and connect the red and black
clipstothetwowiresofthepair.
Multi-conductor Cable:Connecttheclipstoanytwowires.
Coaxial Cable
Shielded Cable
Twisted Pair
Multi-conductor Cable

Fault Mapper Pro Model CA7026 13
4.10 Testing a Cable
AftersettingtheVpvalueandcableimpedance(Z)tomatchthetested
cable,attachtheFaultMapperProtothecable,asdescribedin§4.9.
Press the
TEST /
button, to get to the test screen.
Vp=72% Z=100Ω
413ft
Thefollowingdisplayshowsacablewithimpedanceanomaliesonit.
Vp=72% Z=100Ω
210ft
The vertical cursor line is moved left and right along the line of the trace by
pressing the and buttons.
To determine the distance to an event, position the cursor at the beginning
oftheeventandreadoffthedistanceasshownbelow.
Vp=72% Z=100Ω
413ft
Onthefaultcurveshownintheprevioustwoscreens,alowimpedance
eventoccursat210ft,shownbyadownwardspikeonthecurve,anda
high impedance event occurs at 413 ft.
TheopenendofthecableisshownasalargepositivespikeThisisused
to determine the end (length) of the cable.

14 Fault Mapper Pro Model CA7026
4.11 Single Shot and Continuous Scanning Modes
WhentheFaultMapperProisrstswitchedon,itissetto“Single Shot”
mode.
Inthismode,theFaultMapperProonlyresapulseintothecableunder
testwheneitherthe and buttons or the
TEST /
button is pressed.
Single Shot Mode: Saves on battery life and also enables
the Fault Mapper Pro to be disconnected from the cable
whilestillleavingthefaultdisplayonthescreen.
To enter “Continuous Scanning”modepressandholddowntheTEST /
button.
The iconwillappearatthetopofthedisplay,whenContinuousScan-
ning mode is active.
Continuous Scanning Mode:respulsesintothecable
under test at the rate of 6.7 pulses per second. In this
mode the Fault Mapper Pro is able to more easily identify
intermittent cable faults.

Fault Mapper Pro Model CA7026 15
CHAPTER 5
MAINTENANCE
Use only factory specied replacement parts. AEMC® will not be held
responsible for any accident, incident, or malfunction following a repair
done other than by its service center or by an approved repair center.
5.1 Changing the Battery
Disconnect the instrument from any cable or network link.
1. Turn the instrument OFF.
2. Loosenthe2screwsandremovethebatterycompartmentcover.
3. Replacethebatterieswith4x1.5VAAalkalinebatteries,observing
the polarities.
4. Reattach the battery compartment cover.
5.2 Cleaning
Disconnect the instrument from any source of electricity.
• Useasoftclothlightlydampenedwithsoapywater.
• Rinsewithadampclothandthendrywithadrycloth.
• Donotsplashwaterdirectlyontheinstrument.
• Donotusealcohol,solventsorhydrocarbons.
5.3 Storage
If the instrument is not used for a period of more than 60 days, it is recom-
mended to remove the batteries and store them separately.

16 Fault Mapper Pro Model CA7026
Repair and Calibration
Toensurethatyourinstrumentmeetsfactoryspecications,werecommend
that it be scheduled back to our factory Service Center at one-year intervals
forrecalibration,orasrequiredbyotherstandardsorinternalprocedures.
For instrument repair and calibration:
You must contactourService Center for aCustomerServiceAuthorization
Number(CSA#).Thiswillensurethatwhenyourinstrumentarrives,itwillbe
trackedandprocessedpromptly.PleasewritetheCSA#ontheoutsideofthe
shipping container.
Ship To: Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
15 Faraday Drive
 Dover,NH03820USA
Phone: [phone] (Ext. 360)
[phone] (Ext. 360)
Fax: [phone] or [phone]
E-mail: [email protected]
(Orcontactyourauthorizeddistributor)
Costs for repair and standard calibration are available.
NOTE: You must obtain a CSA# before returning any instrument.
Technical and Sales Assistance
Ifyouareexperiencinganytechnicalproblems,orrequireanyassistancewith
the proper operation or application of your instrument, please call, mail, fax or
e-mail our technical support team:
Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
200 Foxborough Boulevard
Foxborough, MA 02035 USA
Phone: [phone]
[phone]
Fax: [phone]
E-mail: [email protected]
 www.aemc.com
NOTE: Do not ship Instruments to our Foxborough, MA address.

Fault Mapper Pro Model CA7026 17
Limited Warranty
TheModelCA7026iswarrantedtotheownerforaperiodofoneyearfrom
thedateoforiginalpurchaseagainstdefectsinmanufacture.Thislimitedwar-
ranty is given by AEMC®Instruments,notbythedistributorfromwhomitwas
purchased.Thiswarrantyisvoidiftheunithasbeentamperedwith,abusedor
if the defect is related to service not performed by AEMC®Instruments.
For full and detailed warranty coverage, please read the Warranty
Coverage Information, which is attached to the Warranty Registration
Card (if enclosed) or is available at www.aemc.com. Please keep the
Warranty Coverage Information with your records.
What AEMC®Instruments will do:
Ifamalfunctionoccurswithintheone-yearperiod,youmayreturntheinstrument
tousforrepair,providedwehaveyourwarrantyregistrationinformationonle
or a proof of purchase. AEMC®Instrumentswill,atitsoption,repairorreplace
the faulty material.
REGISTER ONLINE AT:
www.aemc.com
Warranty Repairs
What you must do to return an Instrument for Warranty Repair:
First, request a Customer ServiceAuthorization Number (CSA#) by phone
orbyfaxfromourServiceDepartment(seeaddressbelow),thenreturnthe
instrumentalongwiththesignedCSAForm.PleasewritetheCSA#onthe
outside of the shipping container. Return the instrument, postage or shipment
pre-paid to:
Ship To: Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
 15FaradayDrive•Dover,NH03820USA
Phone: [phone] (Ext. 360)
[phone] (Ext. 360)
Fax: [phone] or [phone]
E-mail: [email protected]
Caution:Toprotectyourselfagainstin-transitloss,werecommendyouinsure
your returned material.
NOTE: You must obtain a CSA# before returning any instrument.

18 Fault Mapper Pro Model CA7026
Notes: