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ООО «фирма «АКА», +7(495)621-0481, http://aka.2000.ru [email protected]
Селективный металлодетектор «Сигнум MFT» 7272М. Руководство по эксплуатации.
adaptation procedure one more time (see Search coil Replacement). In this case the
processor of your detector will choose the optimum frequency of the excitation current for
the current temperature conditions.
In saltwater beach operations and other complicated soils with high conductivity we
recommend you use the "Economy Mode" option for better ground balance accuracy.
Sometimes decreasing sensitivity will allow for a more accurate ground balance especially on
beaches.
In rare cases, such as after replacement of the coil or attempting to balance on a
metal object, a situation may arise when you cannot perform an automatic ground balance.
This occurs because the current value of the phase vector moves out of the locked
system acquisition sheet (such as a significant change in ambient temperature).
You can solve the problem by balancing in manual mode. To do this, while
in the automatic balancing press the t o g o t o t he
manual mode and using the buttons and get the vector of the
ground signal moving from left to right in strictly the horizontal direction. After that, the
balancing procedure will operate normally.
DISCRIMINATION SEARCH MODE AND SETUP
Discrimination is the ability of the device to respond to certain types of objects
and ignore the others. For example, you can configure the appliance so that it will
respond only to objects of non-ferrous metals while ignoring everything else. In some
cases, this allows you to increase the comfort of the search. Be aware, however, that the
more discrimination that is used there is an increased risk in missing valuable objects. In
any event, the choice is yours.
The discrimination range is set to the position and width of the search sector.
The metal detector will respond only to those objects that
have travel time curves (Hodographs) which fall between
the left and Right border sector. For example, to search for
non-ferrous objects your sector search screen may
look like that in Fig. 9.
Pressing Button allows the user to
fig.9 quickly switch between modes “All Metal” and
“Discrimination” and then back again.
The sector on the screen indicates that you are in a discriminatory setup. An
Audio response will occur only on those objects that fall in the clear Hodograph area while
targets that fall within the hatched area will not generate an audio response.
