Ака Signum 7272M MFT version 1.00 [12/34] Successiv

ООО «фирма «АКА», +7(495)621-0481, http://aka.2000.ru aka_md@mail.ru

Селективный металлодетектор «Сигнум MFT» 7272М. Руководство по эксплуатации.

If it makes sharp angles or is “chaotic” on the screen, this means that you are trying to

balance near a metal object in the ground. In this case, the device may perform a ground

balance, however it will be incorrect and you will notice multiple false signals from the

ground. If this occurs, simply re-balance the detector in an area clear of any metal

targets.

Once you have chosen a clean location to balance the detector and have done so,

note the value in the lower left hand corner of the ground balance screen. Now, should

you chose to ground balance again later on and there is a sharp difference between this

value now, as compared to the previous ground balance, there is good reason to suspect

that there was metal close by and you will need to ground balance again.

If the coil all the same was a metal object, giving an automatic balance (items

with VDI close to 0, e.g. foil), the device will give two consecutive tones, similar in tone to

that of iron in the search mode, while at the same time the screen will display an

exclamation point within a triangle. Accordingly, you will need to ground balance again on

a clean spot of land.

After balancing, in the lower left corner of the screen will display a numerical value of

balance (phase), this is the amount by which the device will adjust the VDI, excluding the

effect of the soil.

In the right corner of the screen it should be noted that the average phase

angle ground balance is different for each instance of the device and can also depend on

the technological variability in parameters of the coil and the ambient temperature.

However do not forget that your device remains in the automatic balancing

mode and at any moment may deem it was time to rebalance to your shovel, boots, or

hunting partner. If you want to review the results and values of the current automatic

ground balance procedure press to enter manual mode and disable automatic

balancing. In the upper right corner of the screen will appear M instead of the letter A. To

exit the ground balancing, click on the instrument panel. Switching between modes

is as simple as performing successive clicks of. While in the manual balance

mode by pressing or one is able to adjust

the ground balance in the proper direction. Bob the coil

vertically above the ground (rising to 20 -30cm / dropping by

3-5cm), making sure that the vector of the soil is along the

horizontal axis and that the hum is gone when raising or

lowering the coil.

Vector of improperly balanced soil (fig 7)

fig. 7

Vector of properly balanced soil (fig 8)

When working on the ground with uneven salinity, Fig. 8

such as arable land, it is not always possible to accurately ground

balance the unit in automatic mode. This can be due to the uneven or

lumpy nature of the soil. This can sometimes leads to false responses from the identification

channel. In this situation the phase of the ground balance can vary by more than 3