Minelab GP 3000, Инструкция по эксплуатации

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easy reference
DETECTOR SOUNDS
Threshold and Tone
This is the background sound produced by the detector. The level is set
using the Threshold control. The tone of the threshold is set using
the Tone control.
Target Signal
This is the abrupt change of the tone and volume of the threshold
sound when a target is detected.
• The maximum level is set by the Volume control.
• The amount of tone variation is set by the Signal control.
• If the tone falls first and then rises, as the coil is passed
over a target, this generally indicates a small target.
• If the tone rises first and then falls, as the coil is passed
over a target, this generally indicates a large target.
Ground Noise
Irregular noises that are difficult or impossible to pinpoint when moving
the coil over the ground. Ground noise is caused by the changing
chemistry or 'mineralization' of the ground. When the Balance switch is
set to Tracking these effects are greatly reduced.
Tune Indication
An initial beep sounds then, while the detector is testing the range of
frequencies for the most stable, the threshold may become more quiet or
chattery. Once selection is complete three sharp ‘beeps’ are given.
Low Battery Indication
If the battery level drops below the desired power to give full function, a
series of alarm signal pulses are given at half second intervals.
DETECTOR SOUNDS
18
CONTROLS
4