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1. Purpose
The cable route locator is intended to define the position and depth of hidden buried utilities (signal and
power cables, pipelines) at a depth up to 6m, to locate the damage points of cable lines and to survey of
areas before construction works commencing.
1.1
Kit Design and Principle of Operation
The сable route locator consists of the electromagnetic emission receiver and the generator
providing the
electromagnetic emission of the examined route.
The receiver sensors convert electromagnetic signal into the electric one. The amplified and filtered signal
is converted and applied to the built-in speaker and to the LED indicator. The operator uses the signal
from the built-in speaker and the readings of the LED indicator to define the route location.
The receiver also has the feature of signal reception from emission sources with industrial frequency
(50/60 Hz) and cathode protection systems (100/120 Hz). These modes are used to detect laying places
of cables and routes energized with appropriate frequency.
The generator in the sine generation mode represents the auto-oscillation system with a transformer
output. The output transformer with adjustable transformation factor is used for matching with the load
in a high range of resistance. The automatic matching allows to issue the specified current to the random
load. The cable or pipeline can serve as the generator load. The generator can be connected to the load
directly (with connecting wires) or through the framework antenna or “transmitting clamp”, providing for
contact-free (inductive) connection to the monitored buried utility.
The framework antenna can be used as a load only at a frequency of 8928 Hz (selected automatically
when the antenna is connected).
Fig.1.
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Содержание IFL-1210
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