Renkforce 1601754 Owner's manual

Bedienungsanleitung

Renkforce Metallsuchgerät MD 150

Best.-Nr. 1601754 Seite 2 -19

Operating Instructions

Renkforce MD 150 Metal detector

Item No. 1601754 Page 20 - 35

Notice d’emploi

Renkforce Détecteur de métaux MD 150

N° de commande 1601754 Page 36 - 53

Gebruiksaanwijzing

Renkforce Metaaldetector MD 150

Bestelnr. 1601754 Pagina 54 - 71

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Table of contents

Page

1. Introduction ........................................................................................................................................................ 22

2. Explanation of symbols ...................................................................................................................................... 22

3. Intended use ...................................................................................................................................................... 22

4. Delivery content ................................................................................................................................................. 23

5. Features and functions ......................................................................................................................................23

6. Safety instructions .............................................................................................................................................24

a) General information ..................................................................................................................................... 24

b) Electrical safety ...........................................................................................................................................24

c) Batteries ......................................................................................................................................................24

d) Basic information on use of this product ......................................................................................................25

e) During use ...................................................................................................................................................25

f) Persons and product ...................................................................................................................................25

7. Product overview ...............................................................................................................................................26

8. Adjusting the metal detector to your body height ...............................................................................................26

9. Operation ........................................................................................................................................................... 27

a) Inserting/replacing the batteries ..................................................................................................................27

b) Checking the battery status ......................................................................................................................... 28

10. Description of functions .....................................................................................................................................28

a) Operating principle ......................................................................................................................................28

b) Metal differentiation (discrimination) ............................................................................................................ 28

11. Operation ........................................................................................................................................................... 29

a) Functions and analogue display .................................................................................................................. 29

b) Switching on and off ....................................................................................................................................30

c) Default setting - TUNE .................................................................................................................................30

d) Setting the discrimination - DISCRIMINATION ............................................................................................30

12. Handling the metal detector ............................................................................................................................... 31

a) Testing reactions to different metals ............................................................................................................ 31

b) Interpreting the indicator and audible signals .............................................................................................. 31

c) Interference .................................................................................................................................................32

d) Moving the metal detector when searching for objects ...............................................................................33

e) Isolating the detected object .......................................................................................................................33

f) Using headphones .......................................................................................................................................33

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13. Troubleshooting .................................................................................................................................................34

14. Care,cleaningandmaintenance ....................................................................................................................... 34

15. Declaration of Conformity (DOC) ....................................................................................................................... 34

16. Disposal ............................................................................................................................................................. 35

a) Product ........................................................................................................................................................35

b) Batteries ......................................................................................................................................................35

17. Technical data ....................................................................................................................................................35

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1. Introduction

Dearcustomer,

Thank you for purchasing this product.

This product complies with statutory national and European regulations.

Toensurethattheproductremainsinthisstateandtoguaranteesafeoperation,alwaysfollowtheinstructionsin

these operating instructions.

These operating instructions are part of this product. They contain important information on setting up and

usingtheproduct.Donotgivethisproducttoathirdpartywithouttheoperatinginstructions.Therefore,

retain these operating instructions for reference!

Ifthereareanytechnicalquestions,pleasecontact:

International: www.conrad.com/contact

United Kingdom: www.conrad-electronic.co.uk/contact

2. Explanation of symbols

The symbol with an exclamation mark in a triangle is used to highlight important information in these

operating instructions. Always read this information carefully.

The arrow symbol indicates special information and advice on how to use the product.

3. Intended use

Thisproductisusedtosearchforhiddenmetallicpartsintheground.Thisproductisametaldetector,whichcan

differentiate between ferrous and various non-ferrous metals. The differences between metal types are indicated by

audiblesignalsandonananaloguedisplay.Non-ferrousmetalsincludegold,silver,copper,platinum,aluminium,

lead and zinc. The product can also locate alloys from these materials. The product can search on land as well as

inshallowwater.Six1.5Vbatteriesarerequiredforoperation.Foralistoffeaturesandfunctions,seechapter“5.

Features and functions”.

Always follow the safety information in these operating instructions. It contains important information on

how to handle the product safely. You are responsible for the safe operation of this metal detector!

Forsafetyandapprovalpurposes,youmustnotrebuildand/ormodifythisproduct.Usingtheproductforpurposes

otherthanthosedescribedabovemaydamagethecomponents.Inaddition,improperusecancausehazardssuch

asashortcircuit,reorelectricshock.Readtheinstructionscarefullyandstoretheminasafeplace.Onlymakethis

product available to third parties together with its operating instructions.

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4. Delivery content

• Metal detector

• Operating instructions

Up-to-date operating instructions

Todownloadthelatestoperatinginstructions,visitwww.conrad.com/downloads or scan the QR

code on this page. Follow the instructions on the website.

5. Features and functions

• Headphonejackforaudiblenoticationsandsavingpower

• Analogue display and audible signals

• Search depth: max. 5 cm

• Analogue battery level indicator

• Waterproof detection coil designed for use in shallow water

• Adjustable pole length

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6. Safety instructions

Read the operating instructions and safety information carefully. If you do not follow the safety

information and information on proper handling in these operating instructions, we will assume

no liability for any resulting personal injury or damage to property. Such cases will invalidate the

warranty/guarantee.

a) General information

• The device is not a toy. Keep it out of the reach of children and pets.

• Do not leave packaging material lying around carelessly. It may become a dangerous toy for children.

• Protecttheproductfromextremetemperatures,directsunlight,strongjolts,highhumidity,moisture,

ammablegases,vapoursandsolvents.

• Do not place the product under any mechanical stress.

• Ifitisnolongerpossibletooperatetheproductsafely,stopusingitandpreventunauthoriseduse.Safe

operation can no longer be guaranteed if the product:

- isvisiblydamaged,

- isnolongerworkingproperly,

- has been stored for extended periods in poor ambient conditions or

- has been subjected to any serious transport-related stress.

• Alwayshandletheproductcarefully.Jolts,impactsorafallevenfromalowheightmaydamagethe

product.

• Always observe the safety and operating instructions of any other devices which are connected to the

product.

• Ifyoudonothavesufcientknowledgeofhowtouseametaldetector,contactanexperienceduseror

refer to relevant documentation.

• Consultanexpertwhenindoubtabouttheoperation,safetyorconnectionoftheproduct.

• Maintenance,modicationsandrepairsmayonlybecarriedoutbyatechnicianoraspecialistrepair

centre.

• Ifyouhavequestionswhichremainunansweredbytheseoperatinginstructions,contactourtechnical

support service or other technical personnel.

b) Electrical safety

• Never use the product immediately after it has been brought from a cold environment into a warm one.

The condensation generated could destroy the product. Allow the product to reach ambient temperature

before connecting it to the power supply and putting it to use. This may take several hours.

• The product must not get damp or wet (apart from the detection probe).

c) Batteries

• Check that the batteries are inserted with the correct polarity.

• To prevent batteryleakage, remove the batteries when you do not plan to use the productfor an

extended period. Leaking or damaged batteries may cause acid burns if they come into contact with

your skin. Always use suitable protective gloves when handling damaged batteries.

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• Batteriesmustbekeptoutofthereachofchildren.Donotleavebatterieslyingaround,asthereisarisk

that children or pets may swallow them.

• All batteries must be replaced at the same time. Mixing old and new batteries can cause the batteries to

leak and damage the product.

• Batteriesmustnotbedismantled,short-circuitedorthrownintoames.Neverrechargenon-rechargeable

batteries. Risk of explosion!

d) Basic information on use of this product

• This device has the potential to cause damage to property and/or individuals. Ensure that you are

adequatelyinsuredtousethedeviceandforanypotentialconsequences,e.g.bytakingoutprivate

liability insurance.

• Important:Somecountriesmayforbidtheuseofmetaldetectors,oryoumayneedtoregisterthemetal

detector with the local authorities.

• The search for hidden metallic objects is a hobby that brings with it great happiness and excitement.

Pleasenote,however,thatregulationsconcerningexcavationshavebeenadoptedineverycountry.Itis

in your own interest to familiarise yourself with these regulations.

• Neverstartsearchingonprivatelandwithoutpermission.Inprinciple,localstipulationsandlawsapply.

Intheeventofdoubt,checkwiththearesponsibleofceorwiththepropertyowners.

• Donotentersitesofarchaeologicalvalueorrenownwithoutauthorisation.Shouldyoundobjectsof

archaeologicalvalue,pleasecontactamuseumorlocalauthority.

• Always leave the search location as you found it. Collect waste that you have found and dispose of it

accordingly.

• Afterdigging,relltheholesothatitlookstidyanddoesnotpresentahazard.Leavethelandscapeas

you found it.

• Return valuable objects to their rightful owners.

e) During use

• You are responsible for the hazards associated with excavating and recovering an object.

• Whenthedevicedetectsanobject,bearinmindthattheobjectmaybeammunitionoranotherexplosive.

Dangerofdeath!Inthatcase,stopdiggingimmediately,securetheareafromasafedistanceandinform

the local authorities (e.g. police).

• This product is not a toy and is not suitable for children under 14 years of age. Children may only use

metal detectors when supervised by an adult.

• Objects may only be excavated by adults.

• Alwayslookaheadwhenwalkingwiththemetaldetector.Neverlookexclusivelyattheground,asthere

may be obstacles or hazards in front of you such as a slope or road.

f) Persons and product

• Keeptheheadphonevolumeatthelowestpossiblelevel,ensuringthatyoucanstillheartheaudible

signalsclearly.Donotusetheheadphonesatanexcessivelyloudvolumeforextendedperiods,asthis

may cause hearing damage.

• Donotusetheheadphonestosearchformetalwhenclosetoroads/areaswithheavytrafc.Doingso

will distract you from your environment and there may be hazards that you can no longer hear.

• Donotstorethedeviceinveryhotenvironments,e.g.inacarparkedinthesun.

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7. Product overview

1

2

3

4

5

4

7

8

6

9

10

11

12

13

14

1 Detection probe

2 Lower telescopic pole

3 Connection sleeve

4 Upper telescopic pole

5 Analogue display

6 VOLUME dial

7 DISCRIMINATION dial (not shown)

8 Handle with push button (reset button)

9 Battery test switch

10 Headphone jack (not shown)

11 TUNE dial

12 Battery compartment (on the rear/not shown)

13 Control unit

14 Swivel joint (secured with knurled nuts)

8. Adjusting the metal detector to your body height

The product is delivered fully assembled.

• Change the length of the pole to adjust the metal detector to suit your height.

• Adjust the length of the pole to your height so that you can comfortably move the

detection probe (1) over the ground at a height of approximately 3 - 5 cm without

havingtobendover.Whensearchingformetallicobjects,ensurethatyoustand

straightwithabalancedbodyposture.Theguretotheleftisschematic.

Follow the steps below to adjust the length of the pole:

• Loosen the connection sleeve (3) by turning it clockwise.

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• Pull the lower telescopic pole (2) outwards to the desired position. The bottom

of the metal detector should be parallel to the ground when you are searching

for metallic objects.

• Turn the connection sleeve (3) anticlockwise to secure the pole in place at the

desired length.

• Testthelengthsetting.Ifnecessary,readjustthelengthuntilyoundacomfortableposition.

 Ifpossible,donotscrewthethreadoutfullyorpullouttheslottedthreadedring.Itmayfalloutandbelost.

Do not twist the cable inside or pull on it.

• Loosen the knurled nuts on the swivel joint (14).

• Adjust the horizontal position of the detection probe (1) so that it is always parallel to the ground. Tighten the

knurlednutslightlybyhand.Itmuststillbepossibletoadjustthedetectionprobe(1)byhand,butitmustnotslip

immediately.

• Tighten the knurled nuts on the swivel joint (14) so that the position of the detection probe (1) does not change when

you are searching for metallic objects.

9. Operation

a) Inserting/replacing the batteries

Insertthebatteriesbeforeusingthemetaldetectorforthersttime.Proceedasfollows:

• Toinsertthebatteries,removethebatterycompartmentcoverfromtherearofthe

controlunit(13).Slidethebatterycompartmentcoverinthe“OPEN”arrowdirection.

Fold open the battery compartment cover.

• Remove the cover from the battery compartment.

• Insert six 1.5 V AA batteries with correct polarity into the battery compartment (12)

(batteries not included). Always observe the correct polarity (positive/+ and

negative/-).

• Replace the battery compartment cover. Slide the battery compartment cover back

againstthe“OPEN”arrowdirectionandensurethatthelockingmechanismclicks

into place.

 Toreplacethebatteriesatalaterstage,removetheoldbatteriesandfollowthestepsabove.

• Thebatterylifewithhigh-quality,fullychargedalkalinebatteriesisapproximately24hours.

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b) Checking the battery status

You can check the battery status. We recommend checking the battery status before each use. To check the battery

status,proceedasfollows:

• Turn the VOLUME dial (6) to switch the metal detector on.

• Slidethebatterytestswitch(9)tothe“BATTTEST”positiontotestthebatterystatus.

• The pointer on the analogue display (5) indicates the battery status. If the pointer is in the green area with name

“BATT”,thebatterystatusisOK.Ifthepointercomestorestoutsideofthegreenarea(3-6),thebatterystatusis

nolongeradequate.Inthatcase,thebatteriesmustbereplaced.

• Slidethebatterytestswitch(9)tothe“OPERATE”positionagaintoreturntosearchmode.Inthisposition,youcan

begin metal detection.

 Testthebatterystatusintheeventofamalfunctionornoresponsefromthemetaldetector,e.g.ifthemetal

detectordoesn’tswitchon,ifyoucan’tadjustthesettings,ifthevolumeistooloworifthemetaldetector

doesn’t respond properly.

10. Description of functions

a) Operating principle

This product works with the VLF method (low-frequency method). A metal detector of this type consists of a transmitter

coil,areceivercoilandswitchingcircuitswithmicroprocessor,whichprocessesthesignals.Theoutercoilinthe

detection probe is the transmitter. An alternating current with a frequency of 20 kHz is sent through this coil. This

createsamagneticeld,whosedirectionalongtheverticalaxisisalignedtotheground.Thismagneticeldinducesa

currentintometallicobjectshiddenintheground.Inturn,thiscreatesamagneticeldinthereceivercoilopposedto

theinducingmagneticeld.Thisislocatedinsidethetransmittercoil.Owingtotheinductance,inducingandinduced

currentowaretimedelayed.Thisphaseshiftinthecurrentsinthetransmitterandreceivercoilsisusedtodetermine

the metal type of the object hidden in the ground.

b) Metal differentiation (discrimination)

Eachmetaltypeshowsacharacteristicvalueofphaseshift,allowingonemetaltypetobedifferentiationfromanother.

Differentiation of the metals by phase shift is referred to as discrimination (differentiation). Metallic objects primarily

withinductiveresistance,i.e.largeobjectsmadefromgoodconductors(gold,silver,copper),showalargephaseshift.

Metallicobjectswitharatherohmicresistance,i.e.smallobjectsmadefrompoorconductors,showsmallerphase

shifts. Please consult the following list with approximate conductivity values for the various conductors (metals and

electrolytes).

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Material Electrical

conductivity (S/m)

Material Electrical

conductivity (S/m)

Material Electrical conductivity

(S/m)

Silver 63.01×10

6

Gold 45.2×10

6

Calcium 29.8×10

6

Nickel 14.3×10

6

Platinum 9.66×10

6

Zinc 16.6×10

6

Copper 59.6×10

6

Aluminium 37.8×10

6

Cobalt 16.7×10

6

Iron 9.93×10

6

Tin 9.17×10

6

Salt water 4.788

Fresh water 0.0005 - 0.05

11. Operation

a) Functions and analogue display

Push button (reset) (8) Together with the TUNE dial(11),thispushbuttonisdesignedtoset/adjustthe

zero position of the display pointer.

Dials DISCRIMINATION (7) Usethisdialtocongurethediscriminationthresholdfordifferentmetals.

TUNE dial (11) The TUNE dial (11) is designed to tune the detection probe (1) to the electronic

components in the control unit (13). It corrects the zero position on the analogue

display (5).

VOLUME dial (6) This dial is used to set the volume of the audible signal. This applies equally for

loudspeakers and headphones.

Analogue display (5)

(with battery level indicator)

Displaystheapproximatematerialtype(right=non-ferrousmetal,left=ferrous

metal)

Whenthebatteryvoltageislow(<6.5V/DC),thepointerdoesnotpointtothe

green area.

Loudspeaker Audible signals

Headphone jack (10) Connect suitable headphones to the 3.5 mm jack. The in-built loudspeaker is

switched off.

Battery test switch (9) Use this switch to select the operating mode and battery test mode.

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b) Switching on and off

• The VOLUMEdial(6)isinthe“OFF”position.Themetaldetectorisswitchedoff.

• Turn the VOLUMEdial(6)clockwisetoswitchthemetaldetectoron.Aftertheaudibleandtactileclick,themetal

detector is switched on. An audible signal is emitted.

• Turn the VOLUMEdial(6)anticlockwisetoswitchthemetaldetectoroff.Aftertheaudibleandtactileclick,themetal

detectorisswitchedoff(“OFF”position).

c) Default setting - TUNE

This setting needs to be congured to ensure that the metal detector gives consistent results and to prevent

interference or false signals.

 Thedefaultsettingmustbereconguredbeforeeachuse,whenmovingtoadifferentsearchareaand

when the ambient conditions change. Repeat this setting process after each reboot of the device.

• Ensure that the detection probe (1) is kept away from metallic parts and other sources of interference above ground

(e.g.uorescenttubes).Raisethedetectionprobe(1)atleast30cmfromthegroundandholdinanopenspace.

• Turn the VOLUME dial (6) clockwise to switch the metal detector on.

• Movethebatterytestswitch(9)tothe“OPERATE”position.

• Turn the VOLUME dial (6) clockwise to approximately 11 o’clock.

• Turn the DISCRIMINATION dial (7) to approximately the centre position.

• Pressandholdthepushbutton(8)onthehandlewithyourngerandslowlyturntheTUNE dial (11) clockwise until

thepointerontheanaloguedisplay(5)pointstozero.Ifnecessary,movethedialbackwardsandforwardsslightly

untilyoundthecorrectposition.

• Ifyouhearanaudiblesignal(*)whilesetting,itshouldbecomesilentinthisposition,orbevirtuallyimpossibleto

hear.Thedeviceisnowreadyfor“treasurehunting”.Othersettingscanbecarriedoutduringoperation.Further

information can be found in the following chapters.

• Press the push button (8) again if you need to reset the pointer to the zero position during use.

Adjust the default setting again as soon as the circumstances of the search change and then differ from

theprevioussetting,e.g.ifyougofromdrysoiltomoistsoil.Soilswithahighcontentofironminerals

haveferromagneticproperties.Theseferroussoilsgenerateasignalinthemetaldetector,whichmaybe

stronger than the one from a metallic object. This phenomenon is especially apparent in a soil with a high

saltwatercontent.Surfacesofthistype,however,haveaveryconstantphaseshift,sothatwithprecise

adjustment,signaldifferentiationofametalsignalfromthegroundispossible.

d) Setting the discrimination - DISCRIMINATION

The metal detector can be set to the response for various metals located during the search. You can differentiate

between ferrous and non-ferrous metals. Proceed as follows to set the discrimination:

• Turn the DISCRIMINATION dial (7) clockwise until approximately the centre of the scale. This enables metal

differentiationformostcommonstandardapplications. If you want to differentiate othermetaltypes,youcan

implement higher settings. The metal differentiation setting is at the maximum level when the dial is turned as far

as it will go.

31

 Whenyouchangethediscriminationsettings,themetaldetectorneedstoberetunedeachtime.See

section“c)Defaultsetting-TUNE”formoreinformation.

12. Handling the metal detector

a) Testing reactions to different metals

Inordertosucceedonthe“treasurehunt”,youneedtoknowhowyourmetaldetectorrespondstodifferentmetals,

theirlocationanddistancewhendetected.Inordertogainexperience,youshouldcarryoutvarioustestsathome

using different metals and different detection angles. Test the handling of the metal detector before a search using

differentkindsofmetal(coins,rings,silvercutlery,etc.)inordertofamiliariseyourselfwiththedeviceandtogain

experience.Tryoutthedetectorrstathome.Thetestsetupshouldnotinabuildingonaoororceiling,asinmany

cases,oorscontainmetalsupportsandreinforcingsteel.Werecommendusingaplasticorwoodentablewithno

steelcomponents,onwhichyoucanlayoutthevariousobjects.

• Before conducting a test, remove sources of interference such as electronic devices (wearables), jewellery,

watches and rings.

• Place the metal detector on a wooden or plastic table with no interfering metals nearby. Set the detection probe (1)

sothattheatsideofthesearchcoilpointsupwardsinthescales.

• Move the metallic test object backwards and forwards over the search probe at a low height.

• Detecttheindividualobjectsmadefromknownmaterials,suchascoins,watches,rings,jewellery,oldiron,etc.Note

thecorrespondingindicators,audiblesignalsanddistances.Practiseuntilyoucanclearlyidentifytheindicatorsand

audible signals without making mistakes.

• Hold the metallic test object at different angles and note how the audible signal changes.

• Repeatthisprocesswithtestobjectsmadefromdifferent,knownmetals.

b) Interpreting the indicator and audible signals

Switch the metal detector on. An audible signal sounds before default setting. When a metallic object is found during

thesearch,theindicatorandaudiblesignalaredependentonanumberofdifferentfactorsandsettings.

• The strength of the pointer movement on the analogue display (5) indicates the distance of a found signal (usually

the metal). The pointer movement is a measure of the signal strength. The audible signal becomes louder the closer

the detection probe (1) is to the signal source; it is reduced as you move farther away.

• When the differentiation threshold for metal discrimination is set to the minimum position on the DISCRIMINATION

dial(7),metalsarerecordedandindicateduniformly.Themetaldetectorrstlyeliminatesferrousmetals.Whenthe

DISCRIMINATIONdial(7)issetfullyclockwisetothemaximumposition,themetaldetectoreliminatesthinmetal

lm,thenthickerlmsandthensmallaluminiumparts,accordingtothecurrentsetting.

32

• When a metal set on the DISCRIMINATION(7)dialaseliminatedisfound,thepointerontheindicatormoves

anticlockwiseintotheleft-handsectionoftheanaloguedisplay(5).Aquieteraudiblesignalisemitted,or no signal

atall.Themetaltypeisaudiblyeliminated.Ifnometalhasbeeneliminated,theanaloguepointermovesintheright-

handsectionoftheanaloguedisplay(5)only.Whenanon-eliminatedmetaloranalloyhasbeendifferentiated,the

pointermovesanticlockwiseintotheright-handhalfoftheanaloguedisplay(5).Anaudiblesignalisemittedwhich,

dependingontheproximityandsize,isquieterorlouder.

False signals

• Afalsesignalisanindicationofanallegedobject,eventhoughtheobjectisnotthere.Movethedetectionprobe(1)

severaltimesoverthepositionofthesignal.Ifthesignalisstrongandrepeatseasily,itismostlikelyanobject

hiddenintheground.Intheeventofirregularandinconsistentrepeatedsignals,itismostlikelyafalsesignal.

• Anoscillatingsignalisusuallycausedbyexternalinterference(e.g.uorescenttubes,radios,electricalcablesand

other metal detectors). This cannot be eliminated by adjusting the settings.

• Identifying false signals requires practice and experience.

c) Interference

False signals can occur for the following reasons:

• The sensitivity is too high.

• The metal detector was moved too quickly or at an incorrect angle.

The analogue display (5) indicated the wrong metal type.

• There are several different metallic objects.

• The object consists of an alloy that the metal detector cannot recognise.

• The metallic object is heavily oxidised.

• The sensitivity is too high.

• Themorethepointerontheanaloguedisplay(5)moves,thelargertheobject(ortheshallowertheobjectfor

smaller objects).

• The pointer on the analogue display (5) moves most strongly with highly conductive metals. If the pointer on the

analoguedisplay(5)doesnotmovesignicantlyeachtimethedetectionprobeismovedovertheareathatyou

suspectmaycontainanobject,thisprobablyindicatesthatthereisonlyscrapmetal.

• The success/accuracy of the metal location depends on several factors. These include:

- The angle at which the object is inserted into the ground (detection plane)

- The depth of the object

- The object’s degree of oxidation

- The size of the object

- Electromagnetic and electrical interference (e.g. underground cables) in the vicinity of the object

• Duetothesefactors,itisimportantthatyoufamiliariseyourselfwiththemetaldetectorandhowitrespondsbefore

attempting to search for objects.

33

d) Moving the metal detector when searching for objects

• A professional movement pattern when locating metal requires practice to achieve success. Proceed as follows for

the best search results:

• Movethedetectionprobeinwavylinesacrossthetargetarea.Seethegure

to the left.

• Keep the detection probe (1) at a uniform height above the ground (approx.

3-5cm).Ideally,thedetectionprobe(1)shouldalwaysmoveparalleltothe

ground. Let the search width overlap somewhat (approx. 50 %).

• Never move the detection probe as if it were a pendulum. Pendulum

movementsaroundaxedpointmakeacirculararc.Inthatcase,thedistances

to the ground change in an arc thereby changing the detection of the metal

detector. Only oscillate the detection probe (1) if you are searching in ground

depressionsordips,inordertoremainparalleltotheground.

• Swinging or lifting the detection probe will result in incorrect detection results

(seetheguretotheleft).

• Move the detection probe slowly in order to ensure that all small objects are detected.

e) Isolating the detected object

• Witha littlepractice, youcanidentifyanobject’spreciselocation. Ifthe detection

coilndsahiddenobject,holdthedetectionprobe(1)preciselyabovethisposition.

• Move the detection probe (1) forwards and backwards and from side to side in

increasingly small movements. Mark the route accordingly. Remember where the

detector generates a signal and systematically circle in on the location with ever

smaller movements. Repeat the whole process at an angle that crosses the initial

searchdirection.Theintersectionpointofbothlines,asinahaircross,indicatesthe

highest signal intensity. It is the starting point for the signal from the located object.

f) Using headphones

The control unit (13) contains a loudspeaker as well as a 3.5 mm headphone jack (10). The loudspeaker usually emits

theaudiblesignals.Whenheadphonesareconnected,theintegratedloudspeakerisswitchedoff.

 Whenheadphonesareconnected,movetheVOLUME dial (6) anticlockwise as far as it will go before

switchingthedeviceon.Otherwise,thereisariskofdamagetoyourhearingduetohighvolume.

• Connect your headphones to the 3.5 mm headphone jack (10) in the control unit (13).

• The external loudspeaker is switched off. Adjust the volume slowly and carefully to a safe level. You will now hear

the location/detection signals in the headphones only.

Connection of suitable headphones saves power and thus increases the life of the batteries. It is also easier

to hear the changes in signals when searching by ear.

34

13. Troubleshooting

Problem Possible cause Solution

The metal detector gives false

visual indications or audible signals.

The metal detector was

moved too quickly or at

an incorrect angle.

Move the detection probe (1) slowly and hold

the metal detector at the correct angle.

The metal detector indicates a

different metal type or the pitch of

the audible signals is not the same.

There may be another

metallic object in the

detection area.

Recover the object and search the same area

again.

The metal detector

emits a false signal for a

heavily oxidised metal.

This is not a malfunction and cannot be

changed.

14. Care, cleaning and maintenance

 Neveruseaggressivedetergents,rubbingalcoholorotherchemicalsolutions,asthesecoulddamagethe

casing or stop the product from functioning properly.

• Themetaldetectordoes notrequiremaintenance.In the eventofa malfunction, changethebatteriesrst. If

thefaultpersists,contactyourresponsibleservicecentre.Repairormaintenanceworkmustbecarriedoutbya

technician or a specialist repair centre.

• Always disconnect the product from the power supply before cleaning it. Remove the batteries.

• Cleantheproductwithaslightlydampcloth.Ifyouhaveusedthemetaldetectorinwater,wipeitdrywithaclean

cloth.

• Useadry,lint-freeclothtocleantheexteriorcasing.

• Donotpresstoohardonthedisplay,asthiscanleadtoscratchmarks.

15. Declaration of Conformity (DOC)

ConradElectronic SE,Klaus-Conrad-Straße 1,D-92240 Hirschau,hereby declaresthat thisproduct conformsto

Directive 2014/53/EU.

Click on the following link to read the full text of the EU Declaration of Conformity:

www.conrad.com/downloads

 Selectalanguagebyclickingonthecorrespondingagsymbolandthenentertheproductordernumber

in the search box. The EU Declaration of Conformity is available for download in PDF format.

35

16. Disposal

a) Product

Electronic devices are recyclable waste and must not be placed in household waste. Always dispose of the

product according to the relevant statutory regulations. Remove any inserted batteries and dispose of them

separately from the product.

b) Batteries

You are required by law to return all used batteries (Battery Directive). They must not be placed in

household waste.

Batteries containing hazardous substances are labelled with this symbol to indicate that disposal in

householdwasteisforbidden.Theabbreviationsforheavymetalsinbatteriesare:Cd=Cadmium,Hg=

Mercury,Pb=Lead(indicatedonthebattery,e.g.belowthewastebiniconontheleft).

Usedbatteriescanbereturnedtolocalcollectionpoints,ourstoresorbatteryretailers.

Youthusfullyourstatutoryobligationsandcontributetoprotectionoftheenvironment.

17. Technical data

Power supply .................................................... 6x 1.5 V AA batteries (not included)

Operating voltage/current .................................6.5to9.6V/DC,max.20mA(standby10mA)

Battery life ......................................................... 24 hours

Headphone output ............................................ 3.5 mm jack

Length............................................................... Max. 920 mm (when pole is fully extended)

Probe diameter .................................................16.5 cm

Search depth ....................................................3 cm to max. 5 cm

Colour ...............................................................Black

Material .............................................................ABSthermoplastic,aluminium,printedcircuitboard

Frequency .........................................................20 kHz

Operating conditions .........................................-10to+50°C,20-85%relativehumidity(non-condensing)

Storage conditions ............................................-20to+60°C,20-85%relativehumidity(non-condensing)

Dimensions (L x W x H) ....................................500 x 165 x 165 mm (extends to 920 mm)

Weight ..............................................................450 g (without batteries)

The product dimensions and weight may vary slightly.

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DiesisteinePublikationderConradElectronicSE,Klaus-Conrad-Str.1,D-92240Hirschau(www.conrad.com).

AlleRechte einschließlichÜbersetzung vorbehalten.Reproduktionen jederArt,z.B.Fotokopie, Mikroverlmung,oder

dieErfassunginelektronischenDatenverarbeitungsanlagen,bedürfenderschriftlichenGenehmigungdesHerausgebers.

Nachdruck,auchauszugsweise,verboten.DiePublikationentsprichtdemtechnischenStandbeiDrucklegung.

ThisisapublicationbyConradElectronicSE,Klaus-Conrad-Str.1,D-92240Hirschau(www.conrad.com).

All rightsincluding translationreserved. Reproduction byany method,e.g. photocopy, microlming,or the capturein

electronicdataprocessingsystemsrequirethepriorwrittenapprovalbytheeditor.Reprinting,alsoinpart,isprohibited.

This publication represent the technical status at the time of printing.

CeciestunepublicationdeConradElectronicSE,Klaus-Conrad-Str.1,D-92240Hirschau(www.conrad.com).

Tousdroitsréservés,ycomprisdetraduction.Toutereproduction,quellequ‘ellesoit(p.ex.photocopie,microlm,saisie

dansdesinstallationsdetraitementdedonnées)nécessiteuneautorisationécritedel‘éditeur.Ilestinterditdeleréimprimer,

même par extraits. Cette publication correspond au niveau technique du moment de la mise sous presse.

DitiseenpublicatievanConradElectronicSE,Klaus-Conrad-Str.1,D-92240Hirschau(www.conrad.com).

Alle rechten, vertaling inbegrepen, voorbehouden. Reproducties van welke aard dan ook, bijvoorbeeld fotokopie,

microverlmingofderegistratieinelektronischegegevensverwerkingsapparatuur,vereisendeschriftelijketoestemmingvan

deuitgever.Nadruk,ookvanuittreksels,verboden.Depublicatievoldoetaandetechnischestandbijhetindrukbezorgen.

1601754_v1_0518_02_DS_ds_4L_(1)

Renkforce 1601754 Owner's manual

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