technoac TDR-TA3.3T, User Manual

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Cable fault locator
TDR-TA3.3T
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16
CAUTION: it is necessary to be sure that the device security indicator
« » is
blinking (security is on) before connection to the line;
FORBIDDEN: to run the measurements on the lines under electric voltage.
To connect the device to the researched line it is obligatory to:

make sure that the device security indicator
« » is blinking (security is on);

if the device security
indicator « » is not blinking (security is off), the user should
press the SECURITY button. As the result the device security indicator should
start blinking (security will be on);

connect the researched line to the joint LINE using (if necessary) the cable from the
kit with the device;

ATTENTION: if the SECURITY button green indicator is not working, the operation
is prohibited because the researched line is under the electric voltage. It is
required to disconnect the device and to take measures to de-energize the line;

if the SECURITY button green indicator is working, it is required to press the
SECURITY button to switch the device SECURITY
indicator « » off;

CAUTION: it is required to switch on the security before connecting the working
device to another researched line.
6.4 Measurement of the length of the researched line
6.4.1 Set up the probe pulse duration:

choose the “PULSE” selector;

select the pulse duration out of the given row - 10 ns, 20 ns, 30 ns, 50 ns, 100 ns,
200 ns, 500 ns, 1
µs, 1,5 µs, 3 µs, 5 µs, 10 µs – for any measurement subrange
(window).
6.4.2 Set up of a measurement window (subrange):

choose the “WINDOW” selector;

choose the size of the window out of the given row with
« » and « » buttons - 30
m, 60 m, 120 m, 240 m, 480 m, 960 m, 2400 m, 4800 m.
6.4.3 Set up of gain:

choose the “GAIN” selector;