Whites Coinmaster GT Bedienungshandbuch PDF herunterladen (Seite 10)

Page 10

Coinmaster GT

Owner’s Manual

zone. Rejecting a zone only affects the audio; the display will

still show target information even if you can’t hear an audible

response.

The CoinGT display includes a backlight for extended hunt-

ing. Press and hold the On/Off button to toggle the backlight. In

daylight it can be difficult to tell whether the backlight is on or

off, so a backlight icon is also displayed. The backlight will

reduce battery life by 30% so it’s best to turn it off when not

needed.

More Info

VDI

VDI stands for Visual Display Indi-

cator and is a numeric representation of

the target’s response. So-called VLF

detectors transmit a magnetic field

which is disrupted by nearby metal tar-

gets. The disruption is seen by the

receiver as an increase in signal ampli-

tude (which gives a basic “I found

something!”) but also creates a signal

phase shift. This phase shift usually

indicates the type of target and can be

used both for identifying targets and for

discriminating or rejecting them.

White’s uses a VDI scale of -95 to

+95, where negative numbers corre-

spond to ferrous (iron) targets and posi-

tive numbers to non-ferrous targets. A

chart of typical VDIs is shown on the

right.

There is a lot of overlap amongst tar-

gets. For example, due to the variety of

sizes and alloys, gold rings can give the

VDI SCALE

HOT ROCK

DOLLAR

HALF / LG

QUARTER

DIME

+95

ZN CENT

CENT

CU-NI CENT

PULL TAB

SQ TAB

NICKEL

FOIL IRON

SALT

NAILS

LG IRON

-10

-20

-95

SILVER RING

LATE CENT

-40

-60

-90

EARLY CENT

GOLD RING

$2.50 GOLD

$5 GOLD

SC CAP

SM NUGGET

LEAD

MINIE

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16

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