C-SCOPE METADEC II Operating Instructions Manual

=

reJ;)©®frJ~

METAL

DETECTOR/TREASURE

SEEKER

NlETADECir

OPERATING

INSTRUCTIONS

I ,

CONTENTS

A.

Assembly

B.

Batteries

C.

Programmed Method

of

Operation

D.

The Controls And What They

Do

E.

ADC Analytical Method

of

Operation

F.

Use

In

The Field

G.

Care

& Maintenance

INTRODUCTION

The C-Scope

METADEC

II

is

the

culmination

of

many years

of

research

by

both

electronic engineers

and metal

detector

enthusiasts

to

produce a

detector

with

high performance,

that

both

a novice

or

an

experienced user can harness

to

the

full,

simply

and

effectively.

IMPORTANT

To

protect

your

investment complete

both

sections

of

the

guarantee at

the

back

of

this

instruction

booklet

and

return

the

reply paid

portion

to

C-Scope. This

is

particularly

important

in

order

to

obtain

the

free second year parts guarantee.

Please

retain

the

original packing

box.

In

the

event

that

your

detector should ever require

to

be serviced. this package

will

be

most suitable

for

postal

protection.

C-Soope detectors are recognised

as

the

finest detectors available.

They

are designed

with

lasting

quality

in

mind.

high technology, and above all, value

for

money.

The

only

way

to

realise this value and

quality

is

to

carefully

study

and understand this

instruction

manual. You

will

then

be able

to

obtain

all

of

the

advantages designed

into

your

detector.

It

is

also

strongly recommended

that

you

experiment

with

the

detector's

operations indoors

in

air,

with

various

test samples,

in

order

to

learn

to

identify

and understand

the

detector's capabilities and responses.

Always

remember

that

becoming a good metal detective

is

like

becoming a good photographer

or

fisherman.

Although

It

is

an

advantage

to

buy

the

best

equipment

having

bought

it,

patience and hours

of

practice are needed

to

become

proficient.

2

DIAGRAM 1.

A.

Lower

Stem

G.

Knurled

Nut

lil

B.

Middle

Stem

H.

Knurled Nut

(ii)

C.

Upper

Stem

I. Cable

D.

Search Heed Fastener

J.

Din Plug

E.

Search Heed Lugs

K.

Din

Socket

F.

Friction

Boot

A. ASSEMBLY INSTRUCTIONS

To

assemble

the

METADEC

IIconnect the stems

to

the search head. First connect the lower stem

(Al.

which

is

already inserted

into

the middle stem

(Sl.

to

the search head.

Undo

the search head fastener

(D) and then

carefully

position

the

lower stem between the search head lugs IE)

so

that

the

drilled

holes

in

the lugs,

the

friction

boot

(F) and

the

lower

stem

line

up. Insert

the

search head fastener

and tighten

by

turning

the small

nut

until

it

is

tight.

Then

by

holding

the

small

nut

and

turning

the

lever

nut

over

further

tighten

the

fastener.

Do

not

tighten

with

pliers

or

tools

or

the

search head

lugs may be over-stressed.

If

the

search

head

becomes loose

fitting

it

may be necessary

to

obtain

and

fit

a replacement

friction

boot.

These can be obtained free

of

charge

from

the

Ashford

factory.

Next

slide

the

metal middle stem

about

halfway up

the

plastic

lower

stem

so

that

metal

is

at least

15

ems away

from

the

search head.

It

may be necessary

to

loosen

the

knurled

nut

to

adjust

the

stems,

but

it

is

not

necessary

to

detach

the

knurled nut.

At

the

right

point

tighten the knurled

nut

to

fix

the

middle

stem

onto

the

lower

stem. Each knurled

nut

(G. H.I

has

a plastic olive seated inside

it

which

when tightened causes

the

two

pipes

to

fit

tightly

together.

Finally

insert

the

search head and

lower

and middle stem

into

the upper stem IC)

after

loosening

but

not

detaching

the

knurled

nut.

Again

tighten

the

knurled nut at the required height. In

practice

only

this

knurled

nut

will

need

adjusting

for

future

height adjustment.

The search head

output

is a long grey cable

(I)

terminating

in a five

pin

DIN

plug

(J).

Carefully

loop

the cable around the stems ensuring

that

the cable

is

not

too

tight

between the search

head

and the

lower stem. Some slack

is

necessary at this

point

to

enable the search

head

angle

to

be adjusted in

use.

Usually about six loops are

sufficient.

The

01

N plug

has

a guide

to

line

up

with

the

01

N socket

(Kl.

Carefully insert

the

DIN

plug, and when

the

pins are

correctly

aligned and seated

correctly,

rotate

the

DIN

plug

collar

until

it

slides

onto

the

DIN

socket, then tighten

to

lock

the plug

onto

the socket.

3

B.

BATTERIES

The

METADEC

II

is

powered

by

either:-

a)

12 HP7 Penlight Batteries

(not

supplied) in 2 six-pack

battery

holders

(supplied

with

detector)

or

b) 2 rechargeable packs (an

optional

accessory).

HP7s are standard batteries and are available

from

garages,

department

s~ores,

etc.

Rechargeable batteries

in

two

packs, together

with

a charger are available

as

a C-Scope Accessory.

It

is

advised

that

to

begin

with

standard HP7s are used.

You

can

then

evaluate

the

sort

of

use

you

give

the

detector

and decide

whether

the

investment

in

rechargeables is

justified.

Battery life

is

dependent

on

many things and

is

difficult

to

generalise on. The

METADEC

II

is

designed

in such a way

that

the

audio discriminate

only

draws significant

extra

current

when a good

object

is

located.

It

is

certainly

recommended

that

headphones are used

as

not

only

does

this

guarantee

better

depth

penetration.

it

also extends

battery

life

substantially, because the loudspeaker

is

by

far

the

greatest

drain

on

the batteries.

If

HP7 batteries are

to

be used

it

is

necessary

to

load these

into

the

penlight

battery

holders

(LI

which

are supplied

with

the

detector

in

the

battery

compartment

(M).

First undo the

battery

cover

IN)

by

turning

the fastener

with

a small

coin

through

90

0

•

This frees

the

fastener and

releases

the

cover,

which

can then

be

lifted

off.

Load the

battery

holders ensuring

thet

the batteries are inserted

the

correct way

round

with

the

+

and - signs on the batteries corresponding

with

those engraved

on

the

battery

holders.

After

inserting

the batteries roll

them

in the holders

to

make

the

connection

good.

Connect

the

battery

holders

to

the

battery

leads (PI in the

battery

compartment

again making sure

the connection

is

firm

and well seated, and place

the

holders

in

the

battery

compartment.

Replace

the

battery

cover

by

locating the

two

lugs

first,

and

then

pushing the end

with

the fastener home.

It

may be necessary

to

align the fastener before pushing

it

home.

Batteries should

not

be

left

in the

detector

if

the

detector

is

stored

or

not

used

for

long periods, thus

avoiding possible leakage and expensive repairs.

DIAGRAM

2.

L. Penlight

Battery

Holders

M.

Battery

Compertment

N.

Battery

Cover
D. Fastener
P.

Battery

Leads.

K.

Din

Socket

U. Recharge

Socket

HS. Headphone

Socket

Bmery

Check

81

Charging

As a guide

to

battery

condition

a Battery Check

facility

is

provided.

To

check the batteries switch on

the

detector

at

the

ON/OFF

Tune Switch

(Q)

and

tune

the

detector

by

turning

this

control

clockwise,

with

the

Memory

Retune Buttons (vi)

or

(vii) depressed. Once

the

detector

is

set

at

the central Tune

position

release

the

Retune

Button

and then depress the

Battery

Check tv) switch.

If

the needle

on

the meter swings

into

the bold

red

sector the batteries are in good

condition.

Should the needle

not

reach

this sector

of

the meter and retain its level, the batteries need replacing.

When rechargeable batteries are checked the meter needle

will

not

reach

full

scale,

but

will

maintain

the

same

Y3

scale reading

for

the

life

of

the

charge. Standard HP7s

will

discharge gradually, reading

full

scale when new and at

the

lower

end

of

the

bold

red

sector when discharged

to

6 volts.

Sometimes

faulty

batteries

will

initially

give a good battery check,

but

will

quickly

discharge

after

a

half-hour

or

so

of

use.

When battery voltage falls

below

the necessary level,

symptoms

will

be: erratic signal, meter signal

latching on

full,

signal

drift

etc.

Always

check and replace batteries

if

these symptoms occur.

Rechargeable Battery Charging

It

is

not

necessary

to

remove

the

recha1"geable

packs

for

recharging. A recharge socket (U)

is

provided

so

that

the batteries can be recharged in the detector.

Normal HP7s cannot

of

course

be

recharged.

DIAGRAM 3.

(I) Pre-set Ground

R.

Sensitivy

(ii)

Auto

Tuning

S.

Function Switch

(iii)

Audio

Discriminete

T.

Discriminate

(ivl Meter Discriminet8

Q.

On/Off

Tune

(vi

StatuI

Bmery

Check

Z.

Ground Exclude

(vil

Retune

Button

/ ADC Ground

(vii)

Retune

Button

/ ADC Discriminate

5

--

-

__

C. PROGRAMMED METHOD

OF

OPERATION

After

assembly and

banery

insertion

the

METADEC

II

is

now

ready

for

operation.

The

METADEC

II

is

extremely

simple

to

operate, and

,is

programmed and designed

in

such a

way

that

the

operator

is

not

required

to

adjust

discriminate

or

ground

exclude levels.

All

that

Is

required

is

to

turn

the

detector

ON

at

the

ON/OFF

Tune

Switch

(0)

and

tune

the

detector

to

threshold,

as

described

below,

and

then

programme

the

mode

of

operations. Here's

how:·

Tuning

Turn

the

detector

ON

at

the

ON/OFF

Tune

Control

which

works

in

conjunction

with

the

two

Retune

Buttons

(vi)

or

(viil

on

the

meter

console.

Hold

the

memory

retune push

button

down,

and

rotate

the

Tune

Control

clockwise

until

the

meter

reaches

the

central

Tune

position,

and

the

sound

is

just

beginning

to

break

through.

Set

this

carefully

and precisely and then release

the

memory

retune push

button.

If

the

Tuning

level alters

or

wanders

off

tune.do

not adjust

the

TUNE

Control.

Simply

operate

the

Retune push

button

which

will

automatically

re·tune

the

detector

to

the

original selected level.

Programme

Set -See

Diagram

4.

eLEDON

OLEDOFF

,

DIAGRAM

4.

-..,

,.--

f-

'----'

\ \

Programmed

M.chod

of

Operation

s.c

Controll ..follows:

(I)

Pnut

Ground

ON

(iii)

Audio

Dil4:l'im. - ON

liv) Mater Disc:rim. - ON

The

StatUI

Button

(v) will indicate

which

mod.

are engllllad and

operational.

R.

Senlltivity

- 0

S.

Function/Ground

Exclude

Either

BEACH -

Salt

wllter

or

INLAND -

Ground

mineraliMd

~r:-:o::I~

J j • , •

,f

'O"CI)"'O"

I~:=~J

I~'M~II~

~I

1--;:17)

,---,

;'0:-

~

I

I

'I!t'

I,

.....

"...

:I~

......

.~

@8ynKjl

I

The

detector

is

now

excluding

the

ground

at

a pre·set level

on

one channel and

discriminating

at

a

programmed level

on

the

other

channel.

All

metal objects

will

be indicated

by

an increase in loudness

but

rejected objects

will

cause

the

meter

to

fall

to

the

left

and

the

tone

frequency

to

decrease. Accepted targets

will

conversely cause the meter

to

rise

to

the

right

or

remain

stationary

and

the

tone

frequency

to

increase.

Searching

Simply

sweep

the

detector

in an are, ensuring

the

head

is

level and

as

close

to

the

ground

as

possible.

Advance

half

a head length

at a time,

and ensure

the

tuning

level is

correctly

set

by

raising

the

heed an

inch

or

two,

depressing

the

push

button

re·tune. and

then

lower

the

head and

continue.

For a more

detailed

description

of

the

CONTROLS

AND

WHAT

THEY

DO. and USE

IN

THE

FIELD

read

on.

but

if

you

follow

the

programmed

method.

you

cannot

go

far wrong.