vitaldrive IFL-1210, Руководство пользователя

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Select the required frequency from the row “50/60 Hz”,
“100/120 Hz”. The first depression of the operation frequency
selection button pos.8 reflects the current operation
frequency, the subsequent ones scan through the operation
frequencies.
After that the receiver is switched to the search mode of
maximum (figure 2.15).
The method of maximum or the method of minimum may be
used to trace the buried utilities. Depress the button pos.7
figure 2.18 to switch between the modes.
Turn on the receiver, keep its body strictly upright and slowly move on the surveyed area
1). Method of maximum
In the mode of maximum (activated automatically when the
receiver is turned on) the signal from the horizontal antenna is
used. This signal is of the maximum value above the route axis.
The screen in this mode looks as shown on figure 2.17 (the
buried utilities is located on the right).
The maximum deviation on the scale will indicate that the
buried utility is below.
This method is most effective for quick tracing of the buried
utilities because it has large operation distance.
Fig.2.16
F - 60
Fig.2.15
Fig.2.17