Minelab F3 Manual de Serviço descarregar pdf (Página 34)

P0649-A

Figure 21: Noise cancel

• Noise Cancel will commence with two single beeps followed by

45 seconds of sharp double beeps finishing with four single

beeps.

• During the 45 seconds, the detector scans the environment

searching for any electrical interference. Once detected, the F3

will automatically select a different operating frequency to

eliminate or reduce the interference.

b. Audio Reset. Whenever the Threshold Tone sounds louder

than normal perform the Audio Reset procedure as follows:

NOTE

The detector cannot be used for clearing operations during the

Audio Reset procedure.

• Audio Reset should be carried out whenever the threshold

volume seems louder than normal.

• Hold the coil away from any metallic objects. Press and

immediately release the Ground Balance button (Green Button

located on top of the Handle). Within two seconds the threshold

tone will return to its correct level.

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Minelab F3 Manual de Serviço Página 34