8.
PINPOINT mode test
a) Touch the “PINPOINT” button,the PINPOINT cursor is lighted and
flashed.The PP cursor won’t flash until the detector has been balanced.The
target ID cursor in the upper cursor and the target discrimination cursor in
the lower cursor are all extinguished,and the depth cursor is full-scale,the
detector will sound a slight single-frequency mediant.(See Fig.16)
b) Let the 25
￠
silver coin approach the search coil slowly,in the position of
about 7”-8”,the first group of signal strength cursor begins to appear,and the
sound turns louder.Continue let the 25
￠
silver coin approach the search
coil,and the signal strength cursor is full-scale quickly,the sound is more
louder,then the depth cursor denotes the depth dropping,until one is
left,which means the metal is gradually close to the center of the search
coil.(See Fig.17)
Fig.15
Fig.16
Fig.17
Summary of Contents for PHMD74
Page 1: ...PHMD74 USER MANUAL...
