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MMAAGGNNAASSMMAARRTT instructions manual

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INTRODUCTION

Thank you for selecting a MAGNASMART magnetometer.With your purchase you support GDI geophysical instruments to continue investinginto the research and development of new equipments in the future.

This is a new, Hi - Power, twin sensor gradiometer, a professional tool that has beendesigned to be easy to use, practical and ergonomical.

It is the technological result from knowledge gained through many years involvementin metal locators. All the features implemented in the MAGNASMART are to satisfyour customer demands and specific requests.

Please take the time to study this instruction manual before searching using MAGNASMART.As a manufacturer we wish you the best for all your surveys.

APPLICATIONS

MAGNASMART magnetometers are extremely sensitive devices for the undergroundlocation of:- Magnetic metal targets, for example iron objects and iron ore.- Utilities, pipes, manhole covers that were buried under asphalt layer.- Military for buried weapons, army bunkers, landmines, unexploded ordnance survey (UXO)- Crime scene investigation ( CSI )- Anomalies in magnetic ground caused by voids, tunnels, dug ground, old wells.The stronger the mineralization is on the ground, the deeper the location will be for theseanomalies. For non mineralized ground, for example limestone, the location of anomaliesis poor.- Human constructions from magnetic materials, like ceramics, foundations, stone and brickwalls, ditches and pits- Constructions or items that have been fire-heated, ceramic vases, burn out ancientsettlements, bricks, fire places etc.– Treasure hunting for ferrous relics

The user adjustable sensitivity ( SENS knob ) is the key to adopt MAGNASMARTto any magnetometer application for example utility, archaeology and treasure hunting.

LOW SENSITIVITY : Ideal for industrial, utility & pipe location. To find shallow buried ironpipes, manhole covers, ferrous targets at urban areas, even near fences, parked automobilesand concrete bars.HIGH SENSITIVITY : Archaeology applications to detect ceramics, landfills, voids, tombs,tunnels, foundations, ancient ditches, pits, dug ground.HIGH SENSITIVITY : Treasure hunting to locate ferrous relics, weapons, army bunkersand bombs at depth.

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FEATURES

High detection depth range

Adjustable sensitivity

Mini headphones plug

Push button for visual battery status check

Detachable "twist to lock" gradiometer probe

Data logger connection

Internal speaker

Dynamic VCO audio signals

Automatic ground balance after power on

Non motion operation and location at any speed

Color LCD with signal meter and numerical values

9 volt battery holder

External battery jack for a 12V power pack

Ergonomic handle

Quality construction materials

BATTERY

An external 12 V power battery pack with 220 V charger is available.It permits operation up to 20 hours. The external battery jack can be found at the bottomof the handle base. The external battery pack must be hanged away from the probeduring operation. For example if holding the magnetometer with your right hand, hang thebattery pack on your left side, and scan with the right arm extended away from your body.

Battery condition is shown by pressing the BATT key while observing the meter.A good battery condition indicates 950 and higher. If 900 or less is shown,recharge the battery. A low battery emits a continuous sound and full scale meter reading.

External 12V battery pack and 220V charger

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FEATURES







Internal speaker







Ergonomic handle


BATTERY




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FEATURES







Internal speaker







Ergonomic handle


BATTERY




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ASSEMBLY

MAGNASMART has a detachable “twist to lock” probe. To attach probe, observethe metallic spring on probe’s upper end, and a small insert in the main unit probeconnector. Align both parts at these points and press firmly to join. Once they are joined,twist the probe counter-clockwise until it locks. Now both parts are secured.A small amount of lubricant on this locking mechanism will prevent worn out,and has to be applied to both sides probe and main unit. Take special care however,not to lubricate the inside of the electrical connectors and their pins.To dismantle the probe, simply depress the metallic spring and pull it out.

GROUND BALANCE

Also the depth penetration expected might be reduced on areas with large mineralconcentrations.Ground balance is the ability on the MAGNASMART magnetometer to ignore those groundsignals from minerals, while retaining the depth penetration unaffected from interference.

What is ground balance ?

Most soils contain a percentage of magnetic materials,for example minerals - iron ore, and occasionallymagnetic stones called "hot rocks".Sometimes magnetic materials are originatedfrom human activity, like ceramics, bricks etc in oldsettlements. When working a magnetometeron such an environment erratic ground signals mayoccur, like a constant or drifting low audio thresholdtone from the speaker.

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ASSEMBLY


GROUND BALANCE




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ASSEMBLY


GROUND BALANCE




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Procedure

1. Observe the area to decide the proper direction to scan it, according to the obstaclesto be encountered on your way, and the ground formation. The scanning method mustbe on a grid, that has to be walked in parallel lines on a given direction, for exampleNorth to South, or South to North are the most effective directions.

2. Stand at the starting position with the magnetometer probe vertical, tip on the groundsurface, main unit facing towards the scanning direction. Ensure by any means,that the ground on this spot has not been dug and it is clean from buried junk metal.

Starting position has to be far way from any metals like fences, automobiles, metallicconstructions, buildings, concrete iron net, etc. The user must be free of metallic objectswith him, his shoes, clothing etc.

3. Power on the magnetometer by the SENSitivity knob and set it at 3/4 , just below thepoint where the “ticks” are audible ( see SENSITIVITY page 6 )

4. Wait completely motionless 15 to 20 seconds approximately for the Ground Balanceprocedure, while MAGNASMART electronics become adapted to the ground typeautomatically. During the automated tuning process MAGNASMART magnetometermust not be rotated or raised from the ground. In case of a fault, erratic signals come fromthe speaker and the Ground Balance procedure must be repeated.

5. Start scanning ( see SEARCHING page 7 ) In case the ground properties change and erraticsignals occur, try lowering SENS slightly. If this does not solve the problem then repeatGround Balance procedure on the new ground.

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SENSITIVITY

a. If false signals occur when the magnetometer is rotated to the left or right,due to the earth's magnetic linesb. When working on extremely mineralized groundc. When searching closely to large metallic constructions, fences, buildings, automobiles etc.d. On large targets that produce wide audio signals, hence becoming difficultto pinpoint the exact target centere. Electromagnetic interference, inside houses, near power lines, often indicatesas a fluctuating audio

Procedure

After Ground Balancing as described the MAGNASMART magnetometer set the SENSitivityhigh to the point about 1 to 2 “ticks” per second are audible.

! Novice users should set SENS just below the ticking sound for a stable operation

Start scanning. The highest depth is achieved when setting sensitivity so that the "ticks"are just heard. The ticking rate can be corrected anytime during operation using SENS,for example if it is lost or when ticks are more than 2 per second.

In case erratic signals occur due to the above mentioned reasons, or a stable ticking ratecannot be maintained, reduce SENSitivity slightly and continue searching. If not yet a stableoperation is achieved reduce it again a little, and so on, until the interference signalsdisappear. When reducing SENS further, MAGNASMART enters into a “silent standby” modewithout any audible ticks.

At the opposite, if it is stable, increase SENSitivity , and continue increasing it in steps,by checking the magnetometer while scanning, so that it does not start to be too noisy,if so reduce SENS as described.

What is sensitivity or SENS ?

It is a setting that controls the depth rangeof the MAGNASMART magnetometer.

Users may desire the maximum depth range available fromtheir magnetometers, but there are certain occasionswhen depth range must be reduced in order to achieve stableoperation without noises.

4 typical reasons to reduce sensitivity are:

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SENSITIVITY


Procedure










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SENSITIVITY


Procedure










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SEARCHING

The earth's magnetic lines (or magnetic North), are responsible for producing low audiointerference signals when working with extremely sensitive magnetometerssuch as MAGNASMART.

When the MAGNASMART is rotated further away to the left or right from the originaldirection it was Ground Balanced, it “crosses” magnetic lines, and a low audio threshold willbe heard.

One way to overcome this and still maintain maximum sensitivity, is to keep MAGNASMARTmagnetometer firmly facing the original direction which was Ground Balanced,during the search. To accomplish this, scan by walking parallel tracks on a grid.

When it comes to turn to the next track on your grid, you can either :

a. change track and walk backwards ( so that you do not turn or rotate the magnetometerfrom it's original direction axis ) parallel to the first track. Once the new track completes,turn normally, then again turn and walks backwards to the next track, and so on.

b. or change track turning normally but flip themagnetometer handle so that it is held now “backwards”.And so on, scan by flipping the handle at the endof each track, maintain tracks parallel to each other,and MAGNASMART direction unchanged.

Otherwise to make the MAGNASMART magnetometer unaffected by the magnetic Northlines, reduce the SENSitivity as described, up to the point where there is not any noisewhen the magnetometer turns to the next track of your grid, or rotates.By doing this depth penetration will be reduced also

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SEARCHING








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SEARCHING








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TARGET SIGNAL AUDIO & VISUAL

To pinpoint a wide target signal reduce SENSitivity progressively, and make several testscans above the target.

Typical signal duration

thin oblong target laying large, deep target has weak medium target at surfacehorizontally produces 2 peaks and wide signal strong and sharp signal

HEADPHONES

A mini headphones plug can be found below the LCD. Also a set of mini headphonesis included with your MAGNASMART purchase.

The use of headphones is highly recommended when working on a noisy environmentor when demanding a quiet and discreet operation.Headphones also reduce the heavy battery drain of the speaker.

MAGNASMART has a color LCD meter for displayingthe signal intensity, as an aid for exact target localization plusan audio speaker.

Signal meter and numerical values read high for surfaceor metal targets, and low for deep or non metal targets.Generally the audio frequency and the meter valuesare higher when above target center.If meter goes full scale, sweep the magnetometerback and forth to determine the signal duration and center.

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HEADPHONES





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HEADPHONES





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DETECTION DEPTHS

Detection depth increases as the target becomes larger, more magnetic and with oblongtargets buried vertically. Oblong targets aligned or parallel with the probe axis havethe strongest magnetic signal and depth. For non metal targets, ( for example groundanomalies like voids, dug ground ) greater detection depth is achieved when the surroundingsoil has a high level of magnetism ( iron oxides – ore ), this will permit the magnetometerto sense the absence of soil, over the void, for example.

Below ranges for various targets when bench (air) testing. Please consider that these rangescan vary according to ground mineralization, surrounding environment - metals, probeorientation, target layout, faulting, oxidation, target magnetic properties, metal alloy andtemperature.

KIND OF OBJECT DEPTH

Screwdriver 20 cm long 1,40 m.

Main water supply pipe 70 cm dia. 3,00 m.

Automobile 5,00 m.

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ICON DATA LOGGER

Externalbattery jack

Data loggerjack

ICON DATAdata logger

USB cableto computer

Connect to the non marked jack!

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MAGNASMART is data logger ready. Connects to ICON DATA real time magnetometer& metal detector data logger. The data logger jack is at the base of the handle.

! Use ICON DATA once you are familiar with the magnetometer operation

Using the ICON DATA logger the sensitivity or depth penetration of MAGNASMARTis greatly improved over working with the speaker. Scan the field at a normal pace and 2D& 3D maps of the scanned area are generated on a windows tablet PC or laptop in real time.No need to upload data later to a PC. Data logger is a useful aid to determine target size,shape and also depth reading for some cases .

Before connecting the ICON DATA logger, ensure that the MAGNASMART operates stable,for that reason it is highly recommended to set SENS just below the ticking sound,to “silent mode” and test.

The ICON DATA and it’s tablet PC must be held away from the MAGNASMART duringthe Ground Balance procedure also during searching. To achieve this maintain your armextended with the magnetometer far from your body.

ICON DATA real time data logger

3D scan of a rifle using ICON DATA

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Procedure

1. Connect the USB cable from ICON DATA to the USB port it has been installedon your laptop ( read the full instructions on how to install the hardware – software )

2. Power on your laptop computer3. Double click the ICON DATA software icon, ensure that the laptop has enough

battery power by clicking on the battery power meter.4. Click Options.5. Observe the field you are going to search. According to your starting position

you have to scan it in parallel tracks (sweeps) starting left or right.Then choose the suitable sweep direction for that field by clicking repeatedlythe sweep direction arrow. Figure 1

6. Note the field again to realize the size of it. Select how many estimated tracks youneed to scan for covering it on sweeps. Then select how many points you haveto make per track on points. Each point equals your step. The shorter steps youmake the better the scan image resolution will be. Tip: select equal number sweepsand points. The larger the grid the higher the image resolution. Figure 2.

7. For uneven ground that does not permit constant step pace: select manual datacapture (then you have to click CAPTURE after a step you make, for the graphicsto start appearing.)For flat ground that does permit constant steps: select automatic data capture,then select the intervals time. For example if you select 3 sec., after you clickSTART, every 3 sec’s. you will hear “STEP!” and you have to make a step.The computer will make the graphics on screen automatically as you make yoursteps. If for example you selected 7 points, on the 7th step you hear “TURN!”- youneed to turn to the next sweep, left or right according to the sweep direction, and holdthe handle backwards ( Figure 3), then walk 7 steps prompted by the voice and turnsimilarly, this time hold the handle normal…and so on

8. Ensure “auto scale data to full color range” is on and Op Amp Gain is 4.Click OK and exit Options

9. Move far away from metal targets, inside or outside the ground. Stand in clean soilwithοut metals, cavities, voids. Ground Balance MAGNASMART as described.Connect the supplied data cable from MAGNASMART data logger jack to the ICONDATA. Position probe near a ferrous target so that meter goes full scale, and thenuse ICON DATA knob to set SOIL DATA to 950. Move away from the ferrous targetand SOIL DATA should go low. Now start scanning!

10. After you fill up all the sweeps / points you will have the complete graphics imageof the field. Store the data file by click on File / Save, or it will erased. Click on 3Dfor a 3-dimensional view. Please study the full ICON DATA instructions to understandhow to interpret graphics and the usage of the controls

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Figure 1. Examples of sweep direction selections according the starting position.The 2 most frequently used sweep directions are shown, left to right and right to left

Figure 2. Example of sweeps & points selection. This grid size is 10 sweeps X 7 points

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Figure 3. Turning to the next sweep and flipping handle

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ANALYZING THE SCAN IMAGE

1. Check that the scan image has a uniform base color on the background,this represents the ground. Usually in blue, and should cover most of the scan cells.

If not a base tone, or scrambled colors then either a user fault or not any targetsexist on the scan see example a. If by fault the magnetometer is rotated whenturning the sweep lines the scan appears with repeating blue and red lines,see example b.

2. Check the target to have a clear outlined shape without shades, and it’s sizecompared to your grid.Ground minerals appear either without a clear perimeter, or very large size.

3. Select 3D and compare the ground data versus target data. Ground data should benear zero for a good scan. A true target data should read high.

Target data near zero often correspond to minerals.

Target data

Ground data

A. B.

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Target data

Ground data

A. B.

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Target data

Ground data

A. B.

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SPECIFICATIONS

weight : 4,5 Kg ( with carry case ) 1,25 Kg ( without carry case )dimensions of carry case : 126 cm X 27 cm x 12 cmlength : 1 m. ( assembled ) 86 cm ( collapsed )Battery : 12 Volt rechargeableBattery life : Up to 20 hours80 cm gradiometer probeBacklight LCD 2,5''

MAGNASMART KIT

Main unit and probeHard carry case with foam12 volt external battery and 220 V chargerMini headphonesInstruction manual in English2 year guarantee

ACCESSOIRES

ICON DATA real time data logger, Windows XP, VISTA, 7, 8 including a software CDfor 2D & 3D target imaging and a data cable.

External battery pack 12 V and 220 V charger.

30 cm & 60 cm probes for finer scans, pinpointing and operation near metal objects

Probes longer than the standard 80 cm., are available upon request

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SPECIFICATIONS


MAGNASMART KIT


ACCESSOIRES





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SPECIFICATIONS


MAGNASMART KIT


ACCESSOIRES





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STORAGE

Always store the MAGNASMART probe disconnected from the main unit inside its carrycase. Away from direct sunlight and moisture. Remove the battery when left unusedfor a long period, as it might leak and corrode the electronic circuit.

GUARANTEE

MAGNASMART is practically service free. Both the main unit and probe must be kept cleanand dry. This is particularly important for the connectors and sockets, which must notbe stored if been wet. Avoid submerging MAGNASMART into water. For probing on shallowwater, use the sensor into a nylon bag.

MAGNASMART guarantee is 2 years for parts and labor, except batteries and accessories.The guarantee terminates when disregarding the following:- Do not comply with our instructions for usage- Operation out of the above mentioned applications- Tampering or alteration- Mechanical damage due to other materials, accident, liquids, physical wear and tear- Use with non approved accessories, and electrical connections

All MAGNASMART parts can be cleaned using a damp cloth, if necessary. If false signalsor unstable operation occurs, first check the condition of the battery and its holder,and then the cables and jacks.

In case of a malfunction, please contact with your dealer, which will arrange underguarantee, the transportation cost of the faulty unit back to our repair center.

GDI GEOPHYSICAL INSTRUMENTS

193 Athinon ave., 124 61 Athens Greece T. +30 210 4905398 F. +30 210 4256653

Web. : www.imagelocators.com Email. [email protected]

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STORAGE


GUARANTEE








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STORAGE


GUARANTEE








www.imagelocators.com

mailto:[email protected]





gold detectors&treasure-metal detectors at depar …into the research and development of new...

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