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