Tracing Modes Summary - Leica Geosystems LASER ALIGNMENT DIGICAT 100 Manual De Empleo

Tracing Modes Summary

The DIGICAT operates in the follow-
ing modes -
Power.
Frequency range (50-60Hz).
This is a passive mode – the signal,
which the DIGICAT detects, is already
present on the service.
Used to trace live (energised) electri-
cal Power cables. Other services may
emit power signals due to currents
flowing in them, such as metallic
water pipes.
Radio.
Frequency range (15-30KHz).
This is a passive mode – the signal,
which the DIGICAT detects, is already
present on the underground service.
Used to trace metallic services, which
may or may not have a power signal
present. The radio signal originates
from powerful transmitters, operating
at frequencies detectable by the
DIGICAT.
Tracing Modes Summary
Generator 8 kHz.
This is an active mode – the signal,
which the DIGICAT detects, must be
impressed onto the service by a sig-
nal generator or transmitter, such as
the DIGITEX 8/33.
Used to trace metallic services, by
impressing a distinct signal onto the
service, allowing it to be traced above
ground. The 8KHz signal provides
minimum cross coupling (leakage of
signal from one service to another),
when tracing in areas where many
services are present.
Generator 33 kHz.
This is an active mode – the signal,
which the DIGICAT detects, must be
impressed onto the service by a sig-
nal generator or transmitter, such as
the DIGITEX 8/33.
Used to trace metallic services, by
impressing a distinct signal onto the
service, allowing it to be traced above
ground. The 33KHz signal provides a
greater locating range than 8 kHz, but
with increased cross coupling (leak-
age of signal from one service to
another).
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TM
DIGICAT 100 - 1.0.0en
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