4
Fault Mapper Pro
®
Model CA7027
CHAPTER 2
PRODUCT FEATURES
2.1 Description
The Fault Mapper Pro
®
is a hand-held graphical TDR (Time Domain
Reflectometer) designed for identifying and locating faults on power and
communication cables, given access to one end only.
The Fault Mapper Pro
®
measures cable length and indicates the length
and distance to cable faults to a range of 9 ft (3 m) to 19,000 ft (6000m) on
virtually any type of cable. It injects a series of pulses into the cable under
test. The velocity at which the pulses travel is determined by the type of
cable, which is known as the velocity of propagation (Vp) of the cable. The
Velocity of Propagation (Vp) is adjustable between 1% and 99% enabling
accurate calibration to the cable under test.
The Vp value is expressed as a percentage of the speed of light (e.g.
67% or ft/mtrs/micro-second), this value will vary according to the type
of cable under test. The Fault Mapper Pro
®
can accept user selectable
values between 1 and 99% (or the equivalent value in feet or meters per
micro-second).
Based on the selected Vp and the time taken for the pulses to travel
through the cable, a reflection profile of the cable under test is displayed.
An adjustable cursor assists in locating faults and termination.
The Fault Mapper Pro
®
incorporates an oscillating tone tracer, which is
detectable with a standard tone tracer, for use in the tracing and identifica
-
tion of cable pairs.
2.2
Key Features:
Hand-held graphical TDR (Time Domain Reflectometer)
Measures cable length and indicates distance to faults to a range of
19,000 ft (6000m)
Graphical LCD
Easy identification of short range faults
Emits an audible tone, used to trace and identify the type of fault
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