Controls - Fisher Labs F 75 User Manual

F75
Comprehensive Operating Manual & Guide to Metal Detecting
Controls (continued)
The F75 has two controls on the front panel, MENU and SETTINGS.
MENU Pushbutton (Red button on right of the front panel)
Push the MENU button to:
1. Step through the menu selections on the display.
With each push of the button, the next menu selection will be highlighted.
The SETTINGS knob then allows you to change values for the highlighted selection.
2. Recall the last setting which you adjusted.
After you have adjusted a setting, an indicator will remain highlighted next to this menu
selection. One push of the button will recall that selection and display the stored value.
This recall function is useful for a value you want to adjust frequently, such as the
ground balance setting. In order to adjust a stored value with the SETTINGS knob, you
must first press the MENU button to reactive the user interface.
SETTINGS Knob (On the left of the front panel)
Rotate the SETTINGS knob to:
1. Change the setting (or value) of the highlighted menu selection you have chosen.
2. Select the operating MODE when the top line of the menu is highlighted.
When used to switch back and forth between the DISCRIMINATION mode and ALL METAL
modes, the detector changes modes as soon as the corresponding selection is highlighted.
The All Metal modes are used to detect all metal objects, including small or deep objects.
Use the Discrimination mode to ignore trash metal such as nails, foil, or pull-tabs.
NOTE: When the menu selection highlight disappears, the SETTINGS knob is deactivated.
If settings values do not change when the SETTINGS knob is rotated, press the MENU button
to reactivate the user interface.
TRIGGER SWITCH (Under the display in front of your hand)
While the trigger is pulled back, metal objects are temporarily detected without the need for
searchcoil motion. This aids in pinpointing the exact location of objects which were found
while searching in the Discrimination or motion All Metal modes.
When in static all metals mode, pulling the trigger zeroes the audio threshold to the signal
level currently preset. If the searchoil is up in the air away from metal, this maneuver corrects
for threshold drift due to temperature changes.
When the trigger is pushed forward, FASTGRAB automatic ground balancing is activated. The
internal computer measures the magnetic properties of the soil in order to cancel interference
from naturally-occurring minerals in the ground. After the detector measures the soil in this
manner, the detector then uses this information to control operation in both the All Metal and
Discrimination search modes. FASTGRAB can be used at any time during operation.
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