Minelab F1A4 Specifiche Scaricare il pdf (Pagina 17)

16 F1A4 Operator Instructor Notes and Syllabus

Minelab Countermine Division Safety through Excellence

Forty two

Detector Tones

• Threshold Tone. A low volume continuous tone indicating correct operation of

the detector.

• Target Tone. Abrupt variation to the volume and pitch.

Forty three

Operating Multiple Detectors

Key points:

• When two or more F1A4 detectors are operating in close proximity it is

necessary to automatically tune each unit via the Noise Cancel procedure to set

the operating frequencies so that signals do not interfere with each other.

• To set up multiple detectors it is necessary to adhere to the following procedure:

o Turn ‘Detector 1’ On, and switch to Search. Wait for the end of the Start-

up tone.

o With ‘Detector 1’ operational, position ‘Detector 2’ two metres away and turn

it On. Wait for the end of the start-up tones and then perform a Noise

Cancel procedure. Wait 70 seconds for the Noise Cancel to end with the

four ‘beeps’.

o With ‘Detector 1’ and ‘Detector 2’ both operational, position ‘Detector 3’ two

metres away and turn it On. Wait for the end of the start-up tones and then

perform the Noise Cancel procedure. Wait 70 seconds for the Noise

Cancel to end with the four ‘beeps’.

o Continue the above procedure if more that three detectors are to be used in

close proximity.

• The recommended minimum operating distance between units is three metres,

but if interference does result it will be necessary to limit the number of detectors

in use or increase the distance between units. SOP Safety distances rather than

interference distance normally dictate the distance between operational

detectors.

Forty four

QUESTIONS

Outdoor Area. At the completion of the classroom lessons move to the outdoor

training area previously prepared. Provide practical demonstrations of all of the

procedures contained in the lesson. Also demonstrate edge detection. Note: by

selecting different targets,

demonstrate how a different tone is produced for each target.

Often, different coins (containing different metals) are the best way to demonstrate this.

Students shall be able to explain all operating procedures.

Students shall be able to locate and identify the approximate size and depth of buried

targets. Students shall use correct sweeping methods to pinpoint the targets.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Nessun commento

Minelab F1A4 Specifiche Pagina 17