DEVELOPMENT, MANUFACTURING AND SUPPLY OF INSTRUMENTATION
18
5. Search of communications in the mode «Graphic»
The
«Graphic»
mode of is the support mode and intended to locate various communications
(cables, pipelines), both in the passive and active modes with the route locating transmitter. In the
passive mode the cable location is carried out at frequencies
50(60), 100(120)Hz
, in the active
mode -
512,1024, 8192, 32768 Hz.
The
«Graphic»
mode is also intended to determine the number of the near located communications.
The
«Graphic»
mode allows to perform the route location in the conditions of the low signal on the
communication, when the route location in the
«Route»
mode is impossible.
The measurement of the burial depth and current is not available in this mode.
In the
«Graphic»
mode, the receiver screen displays the moving diagram of change in the signal
level depending on the time by the ‘maximum’ method - when located over the communication the
signal is maximum, when deviating from the axis - the signal decreases.
5.1 Setting of the receiver for work in the «Graphic» mode
Turn
on the
power
Press
‘Enter’
button to
open the
menu
To confirm
your
selection
press
‘Enter’
button.
Select
«Modes» in the
menu.
buttons
Select
the mode
«Graphic»
buttons
Press ‘Enter’
again to
return to
main menu.
To confirm
your selection
press ‘Enter’
button.
Select the
«Filter» in the
menu.
buttons
Set the filter
frequency for the
passive search
50(60) or 100(120)
Hz, for active
search 512, 1024,
8192 Hz , 33 kHz in
accordance with the
generator frequency
buttons
At the active search, the signal should be transmitted on the route from the generator with the same
frequency as on the receiver (p.5.3).
Summary of Contents for AP-019.1
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