Minelab F3 Manual de servicio descargar pdf (Pagina 24)

**WARNING**

Decreasing the Volume/Sensitivity of the F3 detector also

decreases the sensitivity (depth of d

etection) of the detector,

thereby increasing the possibility of missing minimum metal

mines.

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. Regardless of the V/S level 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.

a. Increasing Volume/Sensitivity. To increase the V/S level,

press and release the Volume/Sensitivity button the required

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. To decrease the V/S level,

press and release the Volume/Sensitivity button the required

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

or buttons as required until a

double tone is heard,

•

••

• pressing and holding the button and then simultaneously

quickly pressing and releasing the black Noise Cancel Button, or

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Minelab F3 Manual de servicio Pagina 24