Operation-Volume/Sensitivity Control - Minelab F3 Mine Detector Operation Manual

4.3 Operation-Volume/Sensitivity Control.

From the default (middle) V/S setting, it is possible to increase or
decrease V/S levels in five steps.
selected, the volume of the Threshold Tone will remain the same.
For safety reasons, the V/S setting will always commence at the
default (middle) setting every time the F3L is switched on. The Test
Piece Procedure must ALWAYS be carried out at the default V/S
level setting.
Decreasing the Volume/Sensitivity of the F3 detector also
decreases the sensitivity (depth of detection) of the detector,
thereby increasing the possibility of missing minimum metal
a. Increasing Volume/Sensitivity.
press and release the Volume/Sensitivity
number of times (maximum five times from default level). During
each button press, a short high-pitched tone will be heard. When
the maximum V/S level is reached a long high-pitched tone will
be heard.
b. Decreasing Volume/Sensitivity.
press and release the Volume/Sensitivity
number of times (maximum five times from default level). During
each button press, a short low-pitched tone will be heard. When
the minimum V/S level is reached a long low-pitched tone will be
heard.
c. Resetting Volume/Sensitivity to Default Setting. Where the
V/S setting has been adjusted, it can be restored to default level
by:
 pressing and releasing the
double tone is heard,
 pressing and holding the
quickly pressing and releasing the black Noise Cancel Button, or
Regardless of the V/S level
**WARNING**
mines.
To increase the V/S level,
or
button and then simultaneously
22
button the required
To decrease the V/S level,
button the required
buttons as required until a