Bosch GMS 120 Professional User manual

Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com

Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
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Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
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Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
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Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
10 | English
English
Safety Notes
Read and observe all instructions. SAVE
THESE INSTRUCTIONS FOR FUTURE REFER-
ENCE.
Have the measuring tool repaired only through quali-
fied specialists using original spare parts. This ensures
thatthesafety of themeasuring tool is maintained.
Do not operate the measuring tool in explosive environ-
ments, such as in the presence of flammable liquids,
gases or dusts. Sparks canbe createdin themeasuring
tool whichmay ignitethedust or fumes.
For technological reasons, the measuring tool cannot
ensure100 % certainty. To ruleouthazards,safeguard
yourself each time before drilling, sawing or routing in
walls, ceilings or floors by means of other information
sources, such as building plans, pictures from the con-
struction phase, etc. Environmental influences,such as
humidityor closeness to electrical devices, caninfluence
theaccuracyof themeasuring tool.Surface qualityand
conditionof thewalls(e.g.,moisture,metallicbuildingma-
terials, conductive wallpaper,insulation materials, tiles)
aswellastheamount,type,sizeandpositionoftheobjects
can leadto faultymeasuring results.
Product Description and
Specifications
Pleaseunfoldthefold-outpagewiththerepresentationof the
measuringtoolandleaveit unfoldedwhilereadingtheoperat-
ing instructions.
Intended Use
Themeasuring toolis intended forthedetectionof metals
(ferrous andnon-ferrousmetals,e.g.,rebar),joistsand“live”
wires/conductors in walls,ceilings and floors.
Product Features
Thenumbering of theproduct featuresshown refers to the
illustration of themeasuring toolon thegraphicpage.
1 Illuminatedring
2 Marking hole
3 Display
4 Operating-mode indication
5 On/Offbutton
6 Display-illuminationbutton
7 Audio signal button
8 Buttonfor detecting“live”conductors/Operating mode
“Powercable”
9 Button formetal detection/Operating mode“Metal”
10 Button fordetecting wood andmetalbeams/Operating
mode “Drywall”
11 Contact pads
12 Sensor area
13 Typeplate
14 Batterylid
15 Latchof batterylid
16 Fixtureforcarrying strap
17 Protective pouch
18 Carryingstrap
The accessories illustrated or described are not included as stand-
ard delivery.

Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Display Elements (see figure A)
a Switched-offaudiosignal indicator
b Warning-function indicator
c Indicationof theobject type“Non-metalobject”
d Indicationof theobject type“Non-magneticmetal”
e Indicationof theobjecttype“Magnetic metal”
f Indicationof theobject type“Liveconductor”
g Temperaturecontrol indicator
h Batteryindicator
i Measuring indicator
j Fine scale
k Indication “CENTER”
Technical Data
Digital Detector GMS 120
Articlenumber 3601 K81 0..
Maximumscanning depth*
– Ferrous metals 120 mm
– Non-ferrous metals(copper) 80 mm
– Live conductors 110–230 V
(voltage applied)** 50 mm
– Wood 38 mm
Automatic switch-offafterapprox. 5min
Operating temperature –10 °C...+50 °C
Storage temperature –20 °C...+70 °C
Battery 1x9V6LR61
Operatinglifetime,approx. 5h
Weightaccording to
EPTA-Procedure 01/2003 270 g
Degree of protection IP 54 (dust andsplash
waterprotected)
*dependingon operatingmode,materialandsizeof theobjects,as well
as materialandcondition of thebase material
**lessscanning depthfor wires/conductors thatarenot “live”
Intermsofaccuracy,themeasuringresultcanbeinferiorincase
of unfavourable surface quality of the base material.
English | 11
Assembly
Inserting/Replacing the Battery
Alkali-manganese batteries arerecommended forthemeas-
uring tool.
To openthebatterylid 14 ,press thelatch 15 in thedirection
of thearrowand fold up thebattery lid.Insertthesupplied
battery.Payattentionthatthepolarityiscorrect,accordingto
therepresentation on theinside of thebattery lid.
Thebatteryindicator h always indicates thecurrent battery
status:
– Battery fullycharged
– Battery has 2/3 of its capacityor less
– Battery has 1/3 of its capacityor less
– Please changebattery
If the measuring tool is not used for a long period of
time, the battery must be removed. Thebatterycancor-
rode or discharge itself over long periods.
Operation
Protect the measuring tool against moisture and direct
sun light.
Do not subject the measuring tool to extreme tempera-
tures or variations in temperature. In case of large var-
iations in temperature, allow the measuring tool to ad-
just to the ambient temperature before switching it on.
In case of extremetemperaturesor variations in tempera-
ture,theaccuracyof themeasuring toolandthedisplay in-
dication canbe impaired.
Use or operation of transmitting systems, such as
WLAN, UMTS, radar, transmitter masts or microwaves,
in the close proximity can influence the measuring
function.
Initial Operation
Switching On and Off
Beforeswitchingthemeasuringtoolon,makesurethat
the sensor area 12 is not moist. If required,drythemeas-
uring tool using asoft cloth.
If the measuring tool was subject to an extreme tem-
perature change, allow it to adjust to the ambient tem-
perature before switching on.
To switch on themeasuring tool,press theOn/Offbutton 5 .
To switch off themeasuring tool,press theOn/Offbutton 5
again.
When no buttonon themeasuring tool is pressed forapprox.
5minutes and whenno objects are detected,themeasuring
tool automaticallyswitches offto save thebattery.
Switching the Display Illumination On/Off
Thedisplay illumination canbe switchedon/offwith display-
illuminationbutton 6 .
Switching the Audio Signal On/Off
Theaudio signal can be switched on/offwiththeaudio signal
button 7 .When theaudiosignal is switched off,indication a
appears on thedisplay.

Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
12 | English
Method of Operation (see figures A–B)
Themeasuring toolchecks thebase material of sensor area
12 in measurement direction A to themax.detectiondepth
(see “TechnicalData”).Objects aredetected that differfrom
thematerialof thewall.
Always movethemeasuringtoolin astraightlineoverthesur-
faceapplyingslightpressure, withoutliftingit off or changing
thepressure.Duringmeasurement,thecontactpads 11 must
always havecontact to thesurface.
Measuring Procedure
Position themeasuring tool on/against the surface being
detected,andmoveit in direction B .Whenthemeasuringtool
comes closer to an object,theamplitudein measuringindica-
tor i increases andring 1 lights up yellow;whenit is moved
awayfromtheobject,theamplitudedecreases.Measuring
indicator i indicates themaximalamplitudeabove thecentre
of theobject;ring 1 lights up redandan audiosignal sounds.
Forsmallordeeplyembeddedobjects,ring 1 cancontinueto
lightup yellow,whilethereis no audio signal.
Wide objects are not indicated by the illuminated ring
or the audio signal throughout their complete width.
To localise theobjectmoreprecisely, move themeasuring
tool repeatedly (3x) back and forthover theobject.Thefine
scale j is automatically activated in all operating modes.Fine
scale j indicates afull amplitudewhentheobjectis belowthe
centreof thesensor or whenthemaximumamplitude of
measuring indicator i is reached. In theoperating modes
“Drywall” and “Metal” ,theindication “CENTER” k lights up
additionally.
Widerobjects in the base materialaredetected through a
continuous, high amplitudeof measuring indicators i and j .
Ring 1 lights up yellow.Thedurationof the high amplitude
corresponds approximatelywith theobjectwidth.
When very small or deeplyembeddedobjects arebeing
sought andmeasuring indicator i reacts onlyslightly,move
themeasuring toolrepeatedlyovertheobjectin horizontal
and vertical direction.Pay attention to the amplitude of fine
scale j ,and whenin operating mode “Drywall” and “Metal” ,
additionallyto the “CENTER ” k indication,whichwillthenal-
lowforprecise detection.
Before drilling, sawing or routing into a wall, protect
yourself against hazards by using other information
sources. As themeasuring results canbe influenced
throughambientconditionsor thewallmaterial,theremay
be ahazardeventhough theindicatordoes notindicatean
objectin thesensorrange(noaudiosignalor beepandand
theilluminated ring 1 litgreen).
Operating Modes
Thebest measuring results areachievedthroughselectionof
theoperating modes. Themaximal detectiondepth formetal
objects is achieved in theoperating mode “Metal” .Themax-
imal detection depth for“live”conductors is achieved in the
operating mode “Power cable” .Theselected operating
modecanbe recognizedat anytimeviathegreenilluminated
operating-modeindication 4 .
Drywall
Theoperatingmode “Drywall” is suitablefordetectingwood
or metal objects in drywalls.
Press button 10 to activatetheoperating mode “Drywall” .
Theoperating-modeindication 4 abovebutton 10 lights up
green.As soonas themeasuringtoolis positionedagainstthe
base materialto be detected, ring 1 lights up greenand sig-
nals operational readiness.
Intheoperatingmode “Drywall” allobjecttypesaredetected
and indicated:
– Non-metal,e.g. awood beam
– Magnetic, e.g.reinforcing steel
– Non-magnetic,butmetal,e.g.copperpipe
“Live”,e.g.a“live”conductor
Notes: In theoperatingmode “Drywall” ,otherobjects,apart
from wood andmetalobjects and “live”conductors arealso
detected,such as plastictubingfilled with water.For such
objects,theindication c fornon-metalobjects is indicated in
display 3 .
Nails andscrews in thebase material maycause awooden
beam to be indicated as ametalobjecton thedisplay.
When display 3 indicates acontinuouslyhigh amplitude of
measuring indicator i and finescale j ,restart themeasuring
procedure againby positioning themeasuring tool at adiffer-
ent locationon thebase material.
When theilluminatedring 1 does notsignal operational read-
iness whenpositioning themeasuring tool on thebase mate-
rialbeingdetected,themeasuring toolcannot properly de-
tectthebase material.
– Pressandholdbutton 10 untiltheilluminatedringlightsup
green.
– Whenstartinganew measuringprocedureafterwardsand
positioning themeasuring tool onto adifferentwallor sur-
face,youmust brieflypress button 10 .
– In rarecases,themeasuringtoolmaynotbe ableto detect
thebasematerialbecausethesidewith thesensorarea 12
and the typeplate 13 is soiled or dirty.Clean themeasur-
ingtoolwith adry,softclothandrestartthemeasuringpro-
cedure.
Metal
Theoperatingmode “Metal” is suitablefordetectingmagnet-
ic and non-magneticobjectsindependentof thewallmaterial.
Press button 9 to activatetheoperatingmode “Metal” .Theil-
luminatedring 1 andindication 4 above button 9 light up
green.
When thedetectedmetalobject is of magneticmetal(e.g.
iron),thesymbol e is indicatedon display 3 .For non-magnet-
ic metals,thesymbol d is indicated.In orderto differentiate
between metaltypes, themeasuring tool mustbe positioned
abovethedetectedmetal object (ring 1 is litred).
Note: Forreinforcementsteelmeshandsteelintheexamined
base material,an amplitude is indicatedoverthecomplete
surface of measuring indicator i .For reinforcementsteel
mesh,it is typicalthatthesymbol e formagneticmetalis indi-
catedon thedisplay directlyabovetheironrods, whereasbe-
tweentheironrods,thesymbol d fornon-magneticmetalwill
appear.

Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Power Cable
Theoperating mode “Power cable” is suitableonlyforde-
tecting"live" conductors (110–230 V).
Pressbutton 8 to activatetheoperatingmode “Power cable” .
Theilluminatedring 1 andindication 4 abovebutton 8 lightup
green.
When a“live”conductor is detected,indication f appears on
thedisplay 3 .Movethemeasuringtoolrepeatedlyoverthear-
ea to localisethe“live”conductor moreprecisely.Aftermov-
ingoverthe“live”conductorseveraltimes,it canbe indicated
very accurately.Whenthemeasuring toolis veryclose to the
conductor,the illuminated ring 1 flashes redand theaudio
signal beeps swiftly.
Notes:
– “Live”conductors areindicated in anyoperating mode.
– “Live”conductorscanbe detectedeasierwhenpowercon-
sumers (e.g. lamps, machines) areconnectedto the
sought conductorandswitched on.
– Undercertainconditions(suchasbelowmetalsurfaces
or behind surfaces with high water content), “live” con-
ductors cannot be securely detected. Thesignal
strengthof a“live”conductordepends on thepositionof
thecable.Therefore,apply furthermeasurementsin close
proximityor use other informationsources to checkif a
“live”conductor exists.
– Voltage-freeconductors canbe detectedas metalobjects
in theoperation mode “Metal” .This does not apply for
strandedconductors (contrary to solid conductors or
cable).
– Static electricitycanleadto inaccurateindication of elec-
triclines, e.g.,overalargerange.To improvetheindica-
tion,placeyourfreehand flaton thewallnextto themeas-
uring tool,in order to removethestaticelectricity.
Working Advice
Measuring values can be impaired through certain am-
bient conditions. These include, e.g., the proximity of
other equipment that produce strong magnetic or elec-
tromagnetic fields, moisture, metallic building materi-
als, foil-laminated insulation materials or conductive
wallpaper or tiles. Therefore,please alsoobserve other
informationsources (e.g. constructionplans) before drill-
ing, sawingor routing into walls, ceilings or floors.
Marking Objects
If required,detectedobjects canbe marked.Performameas-
urementas usual.Onceyouhavefoundtheboundariesor the
centreof an object,mark thesought locationthrough the
marking hole 2 .
Temperature Control
Themeasuringtoolisequippedwithatemperaturecontrolindi-
cator,as accuratemeasurements areonlypossibleas long as
thetemperaturewithinthemeasuringtoolremainsconstant.
Whenthetemperaturecontrolindicator g lightsup,themeas-
uring tool is not withintheoperating temperaturerangeor
was subject to largevariations in temperature. Switch the
measuring tool off and allow it to adjust to the ambient
temperature before switching it on again.
Warning Function
Whenindicator b lightsup on display 3 andindication 4 flash-
es abovebutton 10 ,themeasurementmustbe restarted. Re-
movethemeasuringtoolfromthewallandplaceit onthebase
materialat adifferent location.
When indicator b flashes on display 3 ,send themeasuring
tool in theprovided protectivepouch to an authorised cus-
tomerservices agent.
Recalibration
Whenmeasuring indicator i indicates acontinuously high am-
plitudein theoperating mode “Metal” ,even though thereis
no metal objectnearthemeasuring tool,themeasuring tool
can be manually recalibrated.
– Switch themeasuring tooloff.
– Removeallobjects nearthemeasuring toolthatcould be
detected,including your wrist watchor rings madeof
metal,and holdthemeasuring tool up.
Payattentionthatbatteryindicator h indicatesat least1/3
capacity:
Holdthemeasuring tool in such amannerthatthetype
plate 13 faces towardtheground.Avoid brightlightsourc-
es or directsunlightfromshining on thearea 12 and 13 ,
withoutcovering offthis area.
– Press andholdbuttons 5 and 7 untiltheilluminatedring 1
lights up red.Thenreleasebothbuttons.
– When thecalibration was successful, themeasuring tool
willautomaticallystart afterafewseconds, andwillbe
ready foroperation again.
Note: If themeasuring tooldoes not automaticallystart,
repeat the recalibration. If the measuring toolstill does not
start, send it in theprovided protective pouch to an author-
ised customerservices agent.
Maintenance and Service
Maintenance and Cleaning
Check the measuring tool each time before use. In case
of visibledamageor loose components inside themeasur-
ing tool,safefunction canno longer be ensured.
Keep themeasuring tool cleanand dry at alltimes to ensure
proper andsafe working.
Do not immerse themeasuring toolin wateror other fluids.
Wipeawaydebris or contaminationwith adry,soft cloth.Do
not use cleaningagentsor solvents.
Inordernottoaffectthemeasuringfunction,decals/stickersor
nameplates,especiallymetalones,maynotbe attachedin the
sensorarea 12 on thefrontor backside of themeasuringtool.
Do not removethecontactpads 11 on thebackside of the
measuring tool.
If themeasuring tool should fail despite thecare taken in
manufacturing and testing procedures,repairshould be
carriedoutby an authorisedafter-sales servicecentre for
Bosch powertools.Do not openthemeasuring tool yourself.
In allcorrespondence andspare parts orders, pleasealways
includethe10-digit articlenumber givenon thetype plateof
themeasuring tool.

Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com
Detectores de metales y otros materiales digitales GMS120 bosch manual ingles www.viaindustrial.com