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15
Селективный металлодетектор «Сигнум MFT» 7272М. Руководство по эксплуатации.
To configure the discrimination, click. Now, by positioning the left and right
edges of the search sector you can set the desired area (level) of discrimination.
At the top left and top right of the screen are the current values of the search
sector. These are in degrees of inclination relative to the vertical axis of the screen.
The currently selected border sector is
highlighted by a rectangular frame (fig. 10).
To change the position of the border sector
use the search buttons and
To set up another border sector
Click.
fig. 10
As already noted in the discrimination mode, due to the influence of the soil, there
is a risk of missing objects if the search sector borders are set too narrow.
To exit discrimination click
SEARCH MODE “All Metal”
Using the search mode "all metal “as opposed to “discrimination” mode you can
detect any metal objects whether they be ferrous or non-ferrous.
Which mode is best to use is a personal preference.
However, it should be noted that searching in the discrimination setup can
miss some of the weaker signals from good targets. This is due to the effect of the soil on
the vector signal of the target and causes the signal to go beyond the search vector
boundary.
The disadvantages of the “all metal “mode can include difficulty working in trashy
areas due to the extreme amount of signals and sounds received. Since the sector
boundaries in the “all metal" mode are fully open, it may be full of signals from so called
“hot rocks”. The detector will issue high-pitched signals from these objects. This is useful for
finding stones of meteorite origin. Identifying these “hot rocks” can be done by noting the
high ratings from the VDI (+86) and the stretching of the signal. If these are bothersome you
may use the discrimination mode and set your sector boundaries at -86 to +86 respectively.
This will act much the same as “all metal” accept with the elimination of the “hot rocks”.
You may also use the algorithm suppression “Disc. of Hot rocks “(see page 15).
