6.1.2 identificationThis method can distinguish the non-ferrous metal (gold, silver, copper) and black metal (magnetic metal, such as steel, iron, etc.), can also choose and do not need metal target need according to the sound, indicating; the identification mode doesn't have the function, can not be ruled out because the influence caused by soil structure "mineralization reaction", which requires strictly keep the distance with the ground probe unchanged, along the ground slowly moving in parallel.The operation procedure is as follows:1) operating mode switch to the identification of document.2) turn on the power switch, press the button and release, clockwise until the "critical sound tuner". 3) adjusted according to the specific circumstances of "work regulation" knob to exclude those who do not need to target; such as nail many local detection in a scrap, everywhere is the signal sent to the nail, exploration work is not convenient; in this case, you could put a nail on the ground, above let the probe nails, if the instrument sounds great, just press the button and release, will "work regulation" knob counterclockwise rotation to the left a little, and then try again, if the sound is reduced, the same move probe, press the button and release, will "work regulation" clockwise to the right a little rotation, Then the probe moved to the nails to try again, have been transferred to sound the same; so far, well after the transfer, the underground iron nails and black metal than iron small will not make the instrument's sound increase, non-ferrous metal and ferrous metal than iron nails big will make the instrument issued by a large noise.4) the adjustment knob to the scale below 2, a larger volume of nonferrous metal to make the sound increases, a larger volume of black metal sound reduction; work adjustment knob to the scale of more than 7, a larger volume of nonferrous metal to make the sound is reduced, a larger volume of black metal sound. If the detected target is a sheet of black metal, it will be the emergence of a particular phenomenon: in the probe shift edge near it, it should be the same as the reaction of ferrous metal, but when the probe is at the plate center, it was just like the non-ferrous metal.
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