Minelab F3 Manuel de service télécharger pdf (Page 17)

F3 INSTRUCTOR NOTES

Minelab Countermine Division Safety Through Excellence

P0645-A

The F3 will emit a series of four rising tones over 12 seconds

(internal diagnostic checks occurring). At the completion of the

Start-Up Tones listen for the low volume Threshold Tone. This

slide includes embedded wav file to demonstrate applicable tones.

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If the Threshold Tone is steady continue with STEP 2. If the

Threshold Tone is noisy or uneven when the coil is stationary,

perform a Noise Cancel.

If the Threshold Tone is steady but seems louder than normal

when the coil is away from the ground and metallic targets,

perform an Audio Reset.

Sixteen

Cont

o STEP 2 - Ground Balance (Use the mineralized rock to

demonstrate procedure)

Ensure that this procedure is carried out on ground free of metal

and hold the coil about 150mm (6 ins) above the ground.

Press down and hold the green Ground Balance button and slowly

lower the coil directly to the ground then lift the coil up again

150mm (6ins).

Continue to lower and raise the coil until the ‘Ground Balance OK’

tone is heard. (‘Ground Balance OK’ tone consists of a short high-

pitched double beep – embedded wav file on slide.)

Release the Ground Balance button.

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Minelab F3 Manuel de service Page 17