The Meter is a handheld and
battery operated instrument capable of measuring
cable lengths and finding distance to an open or a short using TDR(Time Domain
Reflectometry) techniques, given access to one end only.
The Meter can be used for any cable consisting of at least two insulated metallic
elements, one of which may be the sheath or shield of the cable. The Meter has
automatic internal matching networks to allow testing of 25 , 50
, 75
, 100 ,
125 , or 150 cables, which correspond to power, telephony, CATV, and LAN,
etc. cables.
The Meter can be closely matched to the cable under test using the menu selection
keys. The V.O.P(Velocity of Propagation) value can be similarly adjusted to match
the cable under test; thus ensuring an accurate distance measurement.
The Meter incorporates an oscillating tone generator, tha
t
is detectable with
a
standard tone probe (not supplied) available in
t
he marke
t
places, for use
in
the
tracing and identification of pairs within a cable .
The Meter displays “
” message and stops operation i
f
line vol
t
age
of the cable
under t est exceeds 6.5 V when the Meter is
t
urned on. The
B
NC terminal is
protected up to 250 V RMS in order to prevent it from being
demaged by its
misconnection to live circuits of networking.
You can
s tore up to 20 cable test results for custom cable types in internal
nonvolatile memory and the stored cable library provides quick and easy access to
39 standard c able types, which enables ac curate measurement without the
necessity of entering V.O.P (Velocity of Propagation).
The on-site measurement scale changing feature enables the Meter to be globally
used for both Metric measurement and English measurement without changing the
measurement scale at factory.
The Meter comes with an Alligator Clip adaptor, a user’s manual and a soft carrying
case.
2. The TDR Cable Length Meter
A
lthough this manual describes the operation of the Meter for bo
t
h Metric
measurement and English measurement, all illustrations and examples assume use
of the Meter for English measurement.
( 1 )
( 3 )
( 4 )
( 7 )
( 5 )
( 6 )
( 2 )
3. Controls, Indicators, and Buttons Overview
54
To Next Page
Loading...
