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from 0 to 10, the sensitivity is gradually increased. 0 is the lowest position for
SENS; while 10 is the highest position. In general case, user can set the
SENS to a high position. But in mineralized area, or area with electrical
interference, it’s better to lower the SENS properly.
2. MODE SWITCH
DISC--- in this mode, the unit comes with auto ground balance. The
mode DISC/TONE can facilitate you to search for and discriminate the
target type based on the different tone for different metal target.
ALL METAL----to search for all kinds of metal object. In this mode, the
unit comes with auto ground balance, but without discrimination ability.
TONE---works with DISC/TONE. Discriminates different metal types
with two different tones (high and low).
TARGET---to pinpoint the target. Press this button to lower the
sensitivity automatically and to locate the target.
LOW BAT---after long time of operation, the battery voltage will become
low. When LOW BAT indicator lights, user has to replace the battery.
PHONE-- Insert the headphones’ 3.5mm plug into the PHONE jack. At
this time the internal speaker is disconnected.
DISC—discrimination control. You can rotate the control clockwise from
0 to 10 to discriminate the different metal type. DISC will discriminate
the metal type with different tones, such as long tone, short tone or
without tone. But in TONE mode, unit will discriminate the metal type
with high or low tones.
VIEW Meter—when the metal target is found, the meter will swings to
the right.
4. Operation
Your GC-1023 has four operation modes: DISC,TONE ,ALL METAL and TARGET.
DISC, TONE and ALL METAL are motion modes. You have to move the coil to
