Minelab X-Terra 505 Manuel d'instructions télécharger pdf (Page 30)

ground balanCe

Highly mineralised soil may produce false

signals and distract from real targets.

Mineralised ground and ‘hot rocks’

may register as –9 when detecting in

all metal. This is more likely to happen

at high sensitivity settings and with an

unbalanced detector.

Ground balancing the detector reduces false

detections and enables good targets to be

displayed and heard correctly.

Ground balance settings aect both normal

discrimination detection and pinpoint

operation.

If there is diculty ground balancing in an

area with the X-Terra, try reducing the

Sensitivity (p. 46).

The X-Terra 305 and 505 have an adjustable

ground balance which helps in compensating

for false signals.

When the detector is unbalanced, it will detect

targets, but it may also register false detections

due to ground mineralisation. These false

detections are displayed as –9 in the 505 and

–4 in the 305 in All Metal, or as two dashes

when using the factory preset patterns. This

will cause good targets to be displayed only

briey and with clipped sound.

When detecting on the beach, adjusting

ground balance may not give significant

improvements. Try adjusting sensitivity

and altering patterns for best results.

X-Terra 305

Ground Balance range = 0–20

Factory Preset = 6

X-Terra 505

Ground Balance range = 0–50

Factory Preset = 15

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Minelab X-Terra 505 Manuel d'instructions Page 30