Nalanda MD030 Manuale utente

MD030 User Manual

Metal Detector User Manual

This metal detector is designed for beginners and it’s easy to operate. With the

latest design, the coil has good sensitivity and the ability to differentiate various types

of metal. The result of the detection will display on the LCD. The full digital

positioning circuit shows high accuracy of locating and excellent anti-interference

ability.

Please read this manual carefully before using, especially the Quick-Star Demo

and Basic Operation.

CONTENT

TERMINOLOGY...................................................................................................................................... 2

SPECIFICATION...................................................................................................................................... 3

ASSEMBLY.............................................................................................................................................. 3

BATTERY................................................................................................................................................. 4

PANEL AND LCD.................................................................................................................................... 5

CONTROLLER......................................................................................................................................... 6

QUICK START......................................................................................................................................... 7

1. Prepare with the three metal samples.....................................................................................................7

2. Lay the detector......................................................................................................................................7

3. Turn on...................................................................................................................................................7

4. Test.........................................................................................................................................................8

5. PINPOINT mode test............................................................................................................................. 8

BASIC OPERATION.............................................................................................................................. 10

CAUTION................................................................................................................................................13

TROUBLE SHOOTING GUIDE............................................................................................................ 13

PART LIST.............................................................................................................................................. 14

TERMINOLOGY

The following terms are common terminologies about metal detector.

Motion Mode

One of the metal detector’s modes. It means you have to move the coil

continuously during detecting. In generally, motion mode can reduce the effect of the

soil mineralization with better distinction ability.

Non-motion Mode

The other mode of the metal detector. You don’t need to move the search coil

continuously during detection. Metal will be detected once the coil approaches it at a

certain distance. In the non-motion mode, the detector can’t distinct metal types.

Elimination

It’s a setting to eliminate a certain metal. The detector won’t signal on the

specific metal, like light, sound.

Discrimination

When the detector emits different tones for different types of metals, and when

the detector "eliminates" certain metals, we refer to this as the detector

"discriminating" among different types of metals. It’s an important feature of

professional metal detectors. This mode could allow you to ignore trash and

undesirable object.

Iron

Iron is common metal. It’s usually not the detection target, undesirable iron

objects contains such as iron nail, bolts, old cans, caps and so on. But some valuable

relics may also be made of iron, such as old armaments, old armature and so on.

Ferrous

Metals made of iron or contain iron.

Trash metals

Caps, pull-tabs, bottle-caps from beverage containers are the most bothersome

trash items for treasure hunters, which you should eliminate during detecting. But

some other valuable objects have a similar magnetic field with the above trash metals,

and will also be eliminated as trash when discriminating.

Pinpoint

Pinpoint is the process of determining the exact location of the buried metal

object. As in the motion mode, you need to move the search coil continuously when

detecting, but it’s hard to determine the exact location of the buried metals. In the

Pinpoint mode, please use Non-motion mode to align the center of search coil with

the location of the buried metal, to help you to excavate.

Ground balance

Ground Balancing is the ability of the detector to ignore, or "see through," the

earth’s naturally occurring minerals, and only sound a tone when a metal object is

detected.

Coins depth

The coin depth is the approximate distance that the 25￠silver coin in the neutral

soil or in the air. It’s not an exact depth.

SPECIFICATION

Operation mode: 1＋1

Motion mode: ALL-METAL

Non-motion mode: PINPOINT

Coins depth indication: 1, 2, 3 Steps (2″,4″ and 6″+)

Sensitivity control: 3 Steps

Target metals discrimination: 3 kinds

Sound frequency: Three kinds of sound indicating different metals

Battery indication: Low battery indicate

Turn off prompt: make a prompt tone every ten minutes

Search coil: 210x70mm open waterproof search coil

Earphone jack: 1/8 inch earphone jack(Earphone is not included)

Power supply: 6 AA batteries (Battery is not included)

ASSEMBLY

1. Loosen the two triangular fasten buttons below the control box, insert the bracket,

then tighten the two triangular fasten buttons (See Fig.1).

Fig.1

2. Turn clockwise to relax the end of bend-shape tube sleeve, and insert the tube

which connect search coil into the sleeve. Adjusting the length, so you can stand

comfortably and straighten your arms. Lock the sleeve anti-clockwise when the

search coil is from the ground about 1/2 inches. See Fig.2,Fig.3.

Fig.2

Fig.3

3. Wind the cable around the aluminum tube and keep the elastic moderate, so that

the cable won’t sway.

BATTERY

Please use 6 alkaline AA batteries.

1. Press the “key” on the battery cover in the direction of the arrow, pull out the

battery cover.(Fig.4)

Fig.4

2. Insert the 6 AA batteries to the case as indicated by the polarity symbols marked

inside the case.

Fig.5

3. And then push the battery cover to the batter cavity. A KATA tone will be heard,

which means the battery cover has been at the right position. Please note that the

direction indication of the “UP” on the battery cover. 6 alkaline batteries will last

approximately 40 hours. If you won’t use the detector for a long time, please

remove the batteries from the battery box.

PANEL AND LCD

All the controller adjustment can be displayed on the LCD, and all the detection

result also can be shown on the LCD. (See Fig.6)

Fig.6

Target ID: It’s located above the LCD screen. It indicates the wanted target metals.

When detecting a metal target, the target ID cursor will appear below such metal

patterns or the words.

Target ID cursor: it’s in the shape of .It consists of 3 segments. When the

target ID cursor is lighted, it indicates the probable metal type of the detected

target.

The three warning tones which be heard during finding targets are corresponding with

the target ID cursor. See the below table:

Low pitch

Median

High pitch

IRON

5￠,

10￠,25￠,50￠and

1＄

Note: affected by the soil composition, as the same material metal in the different

soil, the position of the target ID cursor will change.

Coin depth indication cursor: it contains three grades, namely 1,2 and

3,equivalent to 2”,4” and 6”.It indicates the approximate depth of the 25￠silver

in the neutral soil. It’s only the approximate depth. The size and composition of

the target, and the composition of the soil will affect the indication value.

Sensitivity indication cursor: It’s shared with the depth cursor and will turn into

depth cursor automatically when detecting metal. It is divided into three grades,

which is the highest when all are lighted. Using SENS button to adjust.

PINPOINT cursor: Press and hold down the “PINPOINT” button, then the

PINPOINT cursor is lighted, and the detector turns into NON-MOTION mode,

it’s apply to locate the detected object accurately.

Battery power cursor: When all the cursor is lighted it means the power is enough.

While the entire battery indicator is extinct, it’s time to replace the battery right

away.

CONTROLLER

All the controllers are on the panel.（See Fig.7）

Fig.7

Power button: Press power button to turn on. Press again to turn off.

SENS Button: choose the 3 levels with the SENS button. Boot setting is the

middle level (the second level).The highest sensitivity is the third level, when

there is interference, you can set the sensitivity lower properly. In the PINPOINT

mode, the SENS button is useless.

PINPOINT Button: press and hold down the “PINPOINT” button, the detector

converts into the non-motion mode automatically, it no longer has discrimination

ability. At this time, the PINPOINT cursor is lighted, and indicates the signal

strength. The more close to the metal target, the more the strength cursor is

lighted, and louder the sound is, to locate the target location accurately.

QUICK START

1. Prepare with the three metal samples

an iron nail

a 5￠nickel coin

a 25￠silver coin

2. Lay the detector

Place the detector on a wooden or plastic table, let the search coil exceeds the

table edge about more than 20cm.keep the detector away from the wall, ceiling and

floor, turn off all the equipment which can cause elector-magnetic interference. Please

take off the watch, ring or other metal objects on your hand. ( See Fig.8).

Fig.8

3. Turn on

Press the POWER button, and the detector will make moo tones twice, all the

LCD patterns are lighted at minute, the detector is in the ALL METAL mode by

default, and the sensitivity is in the second grade.(See Fig.9)

Fig.9

4. Test

Sweep the three metal samples 5 to 8cm above the search coil.

a) The detector sounds three different tones in turn.

b) The depth cursor points to the second grade.

c) The Target ID cursor points to the three materials.

As below table

Sample

Iron nail

5￠nickel coin

25 ￠silver

coin

Tone

Low pitch

Medium

High pitch

Target ID

indication

IRON

5￠

25￠

(See Fig.10, take iron nail as an example)

Fig.10

5. PINPOINT mode test

a) Press and hold down the “PINPOINT” button, the PINPOINT cursor is lighted,

and the depth cursor points to the third grade. The detector will make low

single-frequency median sound. (See Fig.11)

Fig.11

b) Let the 25 ￠silver coin approach the search coil slowly, when it is in the

position of about 6”,the strength cursor begins to appear and turns stronger, the

sound turns louder. Continue let the 25￠silver coin approach the search coil, till

the strength cursor is full-scale lighted, the sound is more louder, then the depth

cursor denotes the depth dropping.(See Fig.12)

Fig.12

c) Maintain the position of the silver coin, release the PINPOINT button. Press the

PINPOINT button again after several seconds, the lower cursor is extinguished,

and the sound comes back to the initial state, the depth indication comes back to

the full scale.

d) Let the silver coin move to the center of the search coil again slowly, the lower

cursor appears again and increases, the sound turns louder again, the depth cursor

goes lower again, which means the metal target is closer to the center of the

search coil.

e) Repeat the above procedures for several times, till the silver coin is closer to the

search coil center. When moving the silver coin, the cursor and sound no longer

change. Up to now, you have had a “PINPOINT” operation completed.

Done this step, you have an initial familiarity to the detector, and you can begin

the next step of basic operation.

BASIC OPERATION

Metal detector is used outdoors. There are too many kinds of metals indoors, and

all kinds of electrical equipment that will bring interference signals. So, it is not fit for

using the detector indoors.

Field detection is more complicated, the composition of the regional soil, the

component, size, shape and the oxidation degree of the underground metals will all

affect the detection results. This chapter is only the general steps of the field detection.

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