C-SCOPE METADEC2 Provozní pokyny stáhnout pdf (Strana 7)

·

D.

CONTROLS AND WHAT THEY DO

The controls are divided

into

two

areas.

Those

on

the

Main

Control

Box (W) and those

on

the

Meter

Console X

(see

Diagram

3l.

On/Off Tune Switch

IQI-

See

Tuning P.6.

Function Switch/Ground Exclude lSI

This

control

selects

for

the

type

of

site.

The

MET

ADEC

II can be used

as

a professional

BEACH

or

IN

LAND

detector

even

though

the

ground

conditions are

totally

different.

Select

either:-

INLAND

-

Two

positions,

G·MAX

-

01

and

G·MAX

-

02

or

BEACH -

Two

positions,

G·MAX

-

01

and

G·MAX

-

02

When operating in

the

PROGRAMMED

OPERATION

METHOD

IC)

it

is

only

important

to

set the

FUNCTION

SWITCH

to

either

INLAND

or

BEACH.

If

the

Function

Switch

is

on

BEACH,

and

the

detector

is

operated on

an

inland site

or

vice versa, the level

of

PRE·SET

Ground

will

not

be

correct.

When operated

in

the

ADC

Method

the

Function

Switch

can

be

used

in

two

positions:

G·MAX

-

01

G·MAX

-

02

The

G·MAX

channel

is

the

all metal ground excluding channel and

is

the

same

in

both

positions.

01

is

a discriminating channel and discriminates against most iron and small

foil.

02

is

a second

discriminating

channel and gives higher levels

of

discrimination

including larger

silver

foil

and

pull

tabs

if

required.

Each 0 channel

is

variable

by

adjusting

the

Discrimination

Level (T).

The

principle

of

the

ADC

method

is

to

search in a ground excluding mode

G·MAX,

and then

after

a signal

is

received

switch

to

a

discriminating

mode 01

or

02

to

analyse the target object

(detailed setting

up

in

the

AOC

mode

is

described

in

Section E laterl.

Manual Ground Exclude IZ)

Ground

exclusion,

which

is

the

process

of

eliminating

signals caused

by

mineralisation in

the

ground

can be manually set

by

ensuring

that

the Pre·set push

button

(i)

on

the

meter console

is

OFF,

and

tuning

the

Ground

Exclude

Control

(Zl.

After

tuning

the

detector,

using ground

button

(vi) and ensuring

that

811

the meter console push

buttons

are

off

lcheck status

(vI),

start

with

the

Ground

Exclude

control

(Z) set

at

O.

Lower

the

search head

to

the

ground

from

about

50 cms away.

If

the meter setting decreases

(to

the

left)

as

the head

is

lowered.

turn

the

Ground

Exclude

Control

(Z) anti·c1ockwise gradually and repeat

until

the meter maintains a central

tuned

position

when lowered

to

the ground.

Conversely, when

you

lower

the search head and

the

meter signal increases (goes

up

to

the

right)

turn

the

ground exclusion

control

clockwise gradually

until

the

meter's central position

is

maintained

throughout

lowering the

detector

head

to

the ground.

If

you

engage

the

PRE-SET

Ground

(i).any

setting

of

the manual Ground Exclude

control

will

be over-

ridden,

so

ensure

if

you

require manual

control

because the site

is

unusual,

that

the

PRE·SET

is

not

engaged.

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