AEMC CA7024 TDR Manual de usuario
CA7024
FAULT MAPPER
CABLE LENGTH METER
AND FAULT LOCATOR
ENGLISH User Manual
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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.
Serial #: ________________________________
Catalog #: 2127.80
Model #: CA7024
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
Chauvin Arnoux®, Inc.
d.b.a AEMC®Instruments
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Fault Mapper Model CA7024
1
Table of Contents
1. INTRODUCTION............................................................................... 3
1.1 International Electrical Symbols................................................3
1.2 Receiving Your Shipment..........................................................4
1.3 Ordering Information.................................................................4
1.3.1 Accessories and Replacement Parts............................4
2. PRODUCT FEATURES ...................................................................... 5
2.1 Description................................................................................5
2.2 Fault Mapper Features .............................................................6
3. SPECIFICATIONS............................................................................. 7
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 Programming a Custom Library Location ...............................10
4.6 Backlight .................................................................................11
4.7 Tone Generator.......................................................................11
4.8 Voltage Safety Warning (Live Sample) ...................................12
4.9 Determining and Measuring Vp Values ..................................13
4.10 Selecting a Library Cable or Setting Vp..................................14
4.10.1 Cable Library ..............................................................14
4.11 Attaching a Cable to the Fault Mapper ...................................16
4.12 Measuring Cable Length or Fault Distance ............................17
5. MAINTENANCE ............................................................................. 18
5.1 Changing the Battery ..............................................................18
5.2 Cleaning..................................................................................18
5.3 Storage ...................................................................................18
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Fault Mapper Model CA7024
Limited Warranty ...................................................................................20
Warranty Repairs...................................................................................20
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Fault Mapper Model CA7024
3
CHAPTER 1
INTRODUCTION
WARNING
● This instrument meets the safety requirements of IEC61010-
1:1995.
● TheModelCA7024isdesignedforuseonde-energizedcircuits
only.
● Connection to line voltages will damage the instrument and
couldbehazardoustotheoperator.
● This instrument is protected against connection to telecom
networkvoltagesaccordingtoEN61326-1.
● Safetyistheresponsibilityoftheoperator.
1.1 International Electrical Symbols
Thissymbolsigniesthattheinstrumentisprotectedbydoubleor
reinforced insulation.
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.
Riskofelectricshock.Thevoltageatthepartsmarkedwiththis
symbol may be dangerous.
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Fault Mapper Model CA7024
1.2 Receiving Your Shipment
Upon receiving your shipment, make sure that the contents are consis-
tentwiththepackinglist.Notifyyourdistributorofanymissingitems.If
theequipmentappearstobedamaged,leaclaimimmediatelywiththe
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 Model CA7024.............................................Cat. #2127.80
Includes meter, carrying case, BNC pigtail with alligator clips, 4 x 1.5V AA batteries, user
manual and product warranty card.
1.3.1 Accessories and Replacement Parts
Tone Receiver / Cable Tracer Model TR03 ......................... Cat. #2127.76
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Fault Mapper Model CA7024
5
CHAPTER 2
PRODUCT FEATURES
2.1 Description
TheFaultMapperisahandheld,Alpha-Numeric,TDR(TimeDomainReec-
tometer)CableLengthMeterandFaultLocator,whichisdesignedtomeasure
thelengthofpowerandcommunicationcablesortoindicatethedistancetoa
fault on the cable, given access to only one end.
By incorporating Fast-edge Step TDR Technology, the Fault Mapper measures
cable length and indicates the distance to open or short circuit faults, to a range
of6000ft(2000m)onatleasttwoconductors.
The Fault Mapper indicates the cable length or fault distance and description
alpha-numerically on a 128x64 Graphical LCD.
An internal library of standard cable types enables accurate measurement
withoutthenecessityofenteringVelocityofPropagation(Vp)information,and
the Fault Mapper automatically compensates for different cable impedances.
TheFaultMapperincorporatesanoscillatingtonegenerator,whichisdetect-
ablewithastandardcabletonetracer,foruseinthetracingandidentication
of cable pairs.
Theunitalsodisplaysa“VoltageDetected”warningandsoundsanalarmwhen
connectedtoacableenergizedbymorethan10V,whichprohibitstesting.
Features:
Hand-held cable length meter and fault locator
Measures cable length and indicates distance to open or short circuit
faults to a range of 6000 ft (2000m)
Indicates cable length, fault distance and description,
alpha-numerically
Emits an audible tone used to trace a cable and identify the type of
fault
Displays “Voltage Detected” and warning sound when >10V is
present on the tested sample
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Fault Mapper Model CA7024
2.2 Fault Mapper Features
1
2
3
4
5
6
7
8
Alpha-Numeric TDR
FAULT MAPPER
®
MODEL CA7024
TEST /
Vp Vp
TDR /
AEMC Instruments
Fault Mapper V3.1B
Appletalk
Vp=66%
1. BNC input connector
2. Alpha-Numeric LCD
3. Vp (Velocity of Propagation) decrement button
4. Test/function select button
5. Backlight button
6. Vp (Velocity of Propagation) increment button
7. Mode select button (TDR or Tone Tracer)
8. PowerON/OFFbutton
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Fault Mapper Model CA7024
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CHAPTER 3
SPECIFICATIONS
Range @ Vp=70%: 6000 ft (2000m)
Resolution (m): 0.1 m up to 100 m, then 1 m
Resolution (ft): 0.1 ft up to 100 ft, then 1 ft
Accuracy*: ±2% of Reading
Minimum Cable Length: 12 ft (4m)
Cable Library: Built-in
Vp (Velocity of Propagation): Adjustable from 0 to 99%
Output Pulse: 5V peak-to-peak into open circuit
Output Impedance: Automatic compensation
Output Pulse: Nanosecond rise Step Function
Display Resolution: 128 x 64 pixel graphical LCD
Display Backlight: Electroluminescent
Tone Generator: Oscillatingtone810Hz-1110Hz
Voltage Warning: Triggers@>10V(AC/DC)
Power Source: 4 x 1.5V AA alkaline batteries
Auto-off: After 3 minutes
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)
Safety: IEC61010-1
EN 60950
Index of Protection: IP54
EMC: EN 61326-1
CE: CompliancewithcurrentEUdirectives
*Measurement accuracy of ±2% 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.
Specications are subject to change without notice.
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Fault Mapper Model CA7024
CHAPTER 4
OPERATION
4.1 Principles of Operation
TheFaultMapperworksbymeasuringthetimetakenforasignaltotravel
to the far end of the cable under test, or to an intermediate fault and return.
Thevelocityatwhichthesignaltravels,orVelocityofPropagation(Vp),
willdependonthecharacteristicsofthecable.
Based on the selected Vp and the measured travel time of the test pulse,
the Fault Mapper calculates and displays distance.
4.2 Accuracy and Velocity of Propagation (Vp)
The Fault Mapper measures distances to faults and cable lengths to an
accuracy of ±2%.
This measurement accuracy is based upon the correct 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
ofthecable,thenadditionalerrorswillbeincurredandthemeasurement
accuracywillbeaffected.
See § 4.9 for setting the Vp.
NOTE:TheVpislesswelldenedwithunshieldedmulti-conductor
cable,includingpowercable,andislowerwhenacableistightly
woundonadrumthanwhenitisinstalledinalinearfashion.
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