Ака Signum 7272M MFT version 1.00 [19/34] Parameter menu

Ака Signum 7272M MFT version 1.00 [19/34] Parameter menu
ООО «фирма «АКА», +7(495)621-0481, http://aka.2000.ru aka_md@mail.ru
19
Селективный металлодетектор «Сигнум MFT» 7272М. Руководство по эксплуатации.
PARAMETER MENU
By pressing the button you have access to a number of additional
parameters, which are divided into 3 groups (Fig. 13). Navigating the menu
Fig. 13
By using the buttons , and
The value in the upper-right corner of the screen indicates the user program
number that you are currently editing.
SEARCH OPTIONS
Conv. Search. [Normal. (Normal), MM (metal trash), AF1 (Filtering algorithm),
AF2, AF3]
These options are designed to optimize the operation of the device under
normal conditions, under various degrees of trash within the search area, as well as under
various amounts of electromagnetic interference.
Trashy is defined as an area where the distance between small metal objects (nails)
is 1/2 the diameter of the coil.
To work in these areas use the MM. Otherwise, we recommend you use the mode
"Normal.
Mode MM is characterized by a fast algorithm for the signal processing, although
there is a nominal loss in sensitivity (30%).
When searching in areas of tall vegetation or in plowed fields with an uneven
surface it is inevitable that bumping of the coil will occur. In these situations, it is
recommended that you use the search modes "AF1, AF2, AF3", where "AF" indicates the
presence of an additional filtering algorithm of the signal. These modes can also be useful
in areas with high levels of electromagnetic interference (EMI). However, it should be
remembered that such filters may slow down the detector process speed. Which AF mode
is best will depend on user experimentation in the local area.
DHR (Discrimination of "hot rocks") [On. / Off.].
This option includes
the ability to suppress the sound response in the (ST) channel to the hot rocks (HR). We
can describe these as rocks with a high ferrous content. Because of the physical features of
the interaction of the Coil with the “HR”, the reaction to them is often confused with the
reaction to large copper or silver coins. This algorithm helps to distinguish between these
two types of responses and to eliminate the audio response to the Hot Rocks.

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