Cable fault locator
TDR-TA3.3T
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5
1
Device application area and its distinction from a previous
model TDR-TA3.3T
1.1 The device TDR-TA3.3T is significantly improved in contradistinction to TDR-
TA3.3T in the following issues:
the device memory maintains an option of saving one waveform due to compare
it with the next waveform.
the device input bandwidth is significantly expanded, that allows to work in
narrow areas and to distinguish closely located faults on a 1,5
– 2 meter
distance between them.
1.2 The TDR-TA3.3T is intended for the following measurements on symmetric and
asymmetric cables with wave impedance from 30 to 400 Ohm:
measuring the cable length;
measuring the distance to wave impedance irregularities or defects;
measuring the coefficient of a line shortening at its known length;
definition of nature of damage;
display of the measurement results on LED-screen with 320*240 pcs definition;
results saving;
1.3 The TDR-TA3.3T is a compact device, intended to operate in field and stationary
conditions.
Climatic performance type TDR-TA3.3T group 4 GOST 22261
operational range of temperature from
– 20 to +40 °С;
relative humidity 98% at
25 °С above zero;
transportation and storage terms from
– 50 to + 50 °С.
1.4
The TDR-TA3.3T is durable and resistant to sinusoidal vibration exposure according
to a group 4 GOST 22261 in the frequency range from 10 to 55 Hz.
The TDR-TA3.3T power is supplied from four AA-batteries of 2700 mA*Hr capacity.
The TDR-TA3.3T design provides a battery discharge control and automatic
disconnection of the device after 10 minutes down time (not-pressed buttons).
1.5
TDR-TA3.3T produces no noise.
