TERRATEST 9000 LWD User manual

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Manual
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LightWeightDeflectometer
TERRATEST9000LWD

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[2]
Manual
Version1.0.0
LightWeightDeflectometer
„TERRATEST9000LWD“
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Accordingtofollowinginternationalstandards:
ASTME2583
EuropeanUnionCENICS93.020
IAN73(UK)
UNI11531‐1(ANASITALIA)
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TERRATEST LWD GmbH
Dianastrasse4∙16515Oranienburg/Berlin
GERMANY
Tel.:+493301700700
www.terratest‐lwd.com∙info@terratest‐lwd.com
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TERRATESTLWDGmbHwarrantscontinuousimprovementandfurtherdevelopmentofitsproductsandthereforereserves
therighttotechnicalmodificationswithoutpriornotice.Thisdocumentisprotectedbycopyright.Duplication,
modification,publication,passingontothirdpartiesandtranslationintoanyotherlanguagewithoutexplicitapprovalof
TERRATESTLWDGmbHisprohibited.
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®January2019TERRATESTLWDGmbH.Allrightsreserved.

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[3]
TableofContents
1 Documentation................................................................................................................................5
1.1 Introduction.............................................................................................................................5
1.2 GeneralSafetyNotes...............................................................................................................5
1.3 SafetyPrecautionsforPowerSupply......................................................................................6
1.3.1 PowerSupply...................................................................................................................6
1.3.2 MainsPowerSupply........................................................................................................6
1.4 SafetyPrecautionsDuringOperation......................................................................................6
1.5 Packaging.................................................................................................................................8
2 ScopeofDelivery.............................................................................................................................9
2.1 BasicPackage...........................................................................................................................9
2.2 OptionsUponRequest............................................................................................................9
2.3 GeneralView.........................................................................................................................10
3 Specification..................................................................................................................................11
3.1 DeviceDesignation................................................................................................................11
3.2 SerialNumber........................................................................................................................11
3.3 BasicUnit...............................................................................................................................11
3.4 AmbientConditions...............................................................................................................11
3.5 PowerSupply.........................................................................................................................11
3.6 BatteryPower........................................................................................................................12
3.7 ChargingProcedure...............................................................................................................13
3.8 ExchangeofBattery...............................................................................................................14
4 GeneralOverview..........................................................................................................................15
4.1 Introduction...........................................................................................................................15
4.2 Innovations............................................................................................................................15
4.2.1 MechanicalInnovations:...............................................................................................15
4.2.2 ElectronicInnovations:..................................................................................................15
4.3 DynamicLoadPlateTest.......................................................................................................15
4.4 ScopeofApplication..............................................................................................................16
4.5 Calibration.............................................................................................................................16
4.6 RulesforProperUse..............................................................................................................16
4.7 Assembly...............................................................................................................................17
4.7.1 LoadPlateDiameter......................................................................................................20
4.7.2 MassofFallingWeight..................................................................................................22
4.7.3 Connectionoftheexternalgeophones,optionallyavailable........................................23
4.7.4 VibrationDampers........................................................................................................24
4.8 Dismantling............................................................................................................................25
5 Measurementwith„TERRATEST9000LWD“................................................................................26
5.1 PreparingtheTestingPoint...................................................................................................26
5.2 TestExecution.......................................................................................................................26
5.3 „MagicEye“...........................................................................................................................28
5.3.1 „MagicEye“RED............................................................................................................28
5.3.2 „MagicEye“BLUE..........................................................................................................28
5.3.3 „MagicEye“GREEN.......................................................................................................28
6 Smartphone‐App„TERRATEST9000LWD“...................................................................................29
6.1 Installation.............................................................................................................................29
6.1.1 SystemRequirements....................................................................................................29
6.1.2 Installationof„TERRATEST9000LWD“App.................................................................29
6.2 OperatingElementsofApp„TERRATEST9000LWD“..........................................................30
6.3 Settings..................................................................................................................................31
6.3.1 UserProfile....................................................................................................................32

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6.3.2 ProjectSettings..............................................................................................................33
6.3.3 DeviceSettings(DropSettings).....................................................................................43
6.4 Measurement........................................................................................................................44
6.4.1 EstablishmentofConnection........................................................................................44
6.4.2 Measurement................................................................................................................45
6.4.3 TransmissionofMeasuringData...................................................................................47
7 Warranty.......................................................................................................................................48
8 EC‐DeclarationofConformity.......................................................................................................51
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[5]
1 DOCUMENTATION
1.1 INTRODUCTION
Congratulationsonthepurchaseofthelightweightdeflectometer„TERRATEST9000LWD“.This
innovativetestinstrumentrepresentsacutting‐edgeproductfeaturingthelatesttechnology.In
ordertobenefitfromalladvantagesandpossibilitiesofferedandpreventunnecessarydamage,
carefullyreadthismanualandfollowinformationcomprised.
Themanufacturerwillnotbeliablefordamagecausedbyfailuretofollowtheseinstructions,misuse
orabuseoftheequipment,oranypartthereof,negligence,accidentfireorforceoftheelements.
Themanufacturergivesnoassuranceastotheaccuracyofthedocumentationanddisclaimsany
impliedwarrantiesofmerchantabilityandfitnessforaparticularpurpose.
InnoeventshallTERRATESTLWDGmbHbeliableforanyanticipatedorlostprofits,incidentalor
consequentialdamagesorincurredbythepurchaseroranythirdpartyinconnectionwiththe
purchase,installation,repairoroperationoftheequipmentoranypartthereof.
ATTENTION
Pleasedoalwayscrosscheckwithyourdomestictestmethod,tomakesurethattest
resultswillbereliable.
Thecurrentversionsofthefollowingtestdirectivesmustbeobserved:
„ASTME2583“
„EuropeanUnionCENICS93.020“
„UNI11531‐1(ANASITALIA)“
1.2 GENERALSAFETYNOTES
Theseinstructionsmustbesubmittedbeforehandtoallpersonsinvolvedwithanytasksconcerning
theinstrument„TERRATEST9000LWD“.
Usefulinformationandnotes
ATTENTION
Indicateswarningsrelatedtoprocessesentailingtheriskofphysicalinjuryormaterial
damageincaseofinadequateexecution.Thesewarningsmustbefollowedinorderto
ensuresafeoperation.
ATTENTION
Ifthelightweightdeflectometerisusedinamannernotcoveredbytheseinstructions,the
protectionprovidedbytheinstrumentmaybeimpaired.
ATTENTION
Theevaluationofthemeasuringresultsdependsonmaterialandsubsoil.Itisalways
requiredtodetermineonatrialbasiscorrelationvaluestothedomestictestmethodforthe
pre‐existinggroundorgroundintendedforbackfilling.Thewatercontentofthesoilmustnot
varywidely.Homogenoussoilisaprerequisitetoobtainacorrelationbetweenthe
measuringmethods.
ATTENTION
AccordingtoASTME2583,thelightweightdeflecometermustbecalibratedatleastoncea
year.Testresultsofadevicethathasnotbeencalibratedorofadevicewithexpired

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calibrationdatemustnotbeusedforevaluationofthebearingcapacityofsoilorrock.
Prescribedcalibrationintervalsmustbeobserved.
WARNING
Thelightweightdeflectometer„TERRATEST9000LWD“shouldneverbeplacednearany
inflammableliquidssuchasalcohol,thinneretc.Thereisariskoffireifsuchinflammable
liquidsmakecontactwiththeelectriccomponentsintheinteriorofthedevice.
WARNING
Neverplaceorchargetheinstrumentinareaswithexcessivehumidity,hightemperatures,
directsunlightorclosetoopenflames,otherwisethismaygiverisetotheriskofelectric
shock.
WARNING
Readtheinstructionmanualcarefullytoensurecorrectinstallationandset‐up.Whennotest
isperformed,keepthefallingweightinitsrestpositionatthebottomoftheguiderod.
Otherwisethefallweightcouldfalldownandcauseinjuriesordamage.Furthermorethe
instrumentmaybecomeunstable.
1.3 SAFETYPRECAUTIONSFORPOWERSUPPLY
WARNING
Neverplaceanyheavyobjectsonthechargingcable.Nevertwistorpullit,andtakecarethat
itdoesnotbecomeknotted.
WARNING
Ensurethatthechargingcableiscompletelyinsertedintoitssocket.Apoorconnectioncan
leadtoequipmentdamage.Useonlythecableincludedinthedelivery.
1.3.1 PowerSupply
Onlythelong‐liferechargeablelithiumionSonyUS18650VTC6approvedbythemanufacturer
shouldbeused.Thebatterymustbeexchangedacc.tochapter3.8„Batteryexchange“,page14.
ATTENTION
Theassemblymaybedestroyediftheleadsofthebatteryareinterchanged.Inthecourseof
thechargingprocedure,nomeasurementshouldtakeplace.
1.3.2 MainsPowerSupply
ATTENTION
Inordertochargetheelectronicsofthelightweightdeflectometer,thepowerpack
(SYS1308‐1809‐W2E)withLEMOplugshouldexclusivelybeused.Thechargingprocedureon
thebasisofthispowerpackshouldbeperformedindryindoorlocations.Theinnerpoleis
thepositive(+)pole.
1.4 SAFETYPRECAUTIONSDURINGOPERATION
ATTENTION
TERRATESTLWDGmbHshallnotbeliableforanydamage,consequentialdamageorfinancial
lossthatoccursasaresultofimproperuseand/orlackofprofessionalknowledgewhen
evaluatingthetestdata.Itisessentialtoensurethatthecalibrationisuptodateandthatthe
deviceisoperatedinaccordancewiththeinstructionsofthisdocumentandlocalstandards.

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ATTENTION
Pleasedoalwayscrosscheckwithyourdomestictestmethod,tomakesurethattest
resultswillbereliable.
WARNING
Thedevicehasbeendesignedforoutdooruseonly.Neveruseitinbuildings;otherwise
damagetothebuildingispossible.
ATTENTION
Neverdisassembleoralterthelightweightdeflectometeroraccessorieslikechargingcable
etc.
ATTENTION
Inthecaseofunusualnoise,smoke,smellorexcessiveheatgeneration,switchoffthedevice
immediatelyandcontactthedealerorTERRATESTLWDGmbHcustomersupport.
ATTENTION
Donotexposetheinstrumenttodirectrainfall.Ifitrains,coverandprotectit.
ATTENTION
Theinstrumentmustbeprotectedfromwater,liquidsandflammablesubstances.
Penetratingflammableliquidsmaycomeintocontactwithelectricalcomponents,givingrise
toafire.
WARNING
Cleansurfaceswithsolvent‐freeagentsonly.Gentlywipesurfaceswithasoft,drycloth.
Residualpollutionshavetoberemovedbymeansofaclothmoistenedwithwater,well‐
wrung,andthenwipeagainwithasoft,drycloth.Flammablesubstanceslikealcohol,petrol
orthinnerareforbidden.Penetratingflammableliquidsmaycomeintocontactwith
electricalcomponents,givingrisetoafire.Firemayalsobecausedbycabledamageissuing
frominadequateconnecting/disconnectingmethods.
WARNING
Whenplacingtheinstrumentonthetestground,kneeldownononekneeandgrabtheload
platewithbothhandsonthehandles.Donotlettheloadplatefalldown;otherwisefoot
injuriesanddamagetothedevicearepossible.
WARNING
Keepthefallingweightalwaysatthebottomonthebufferelements(vibrationdampers),
andliftitonlyimmediatelybeforeperformingatest.Engageitatthetopintothereleasing
mechanism,inordertopreventinjuriesandmaterialdamage.Thefallingweighthasnotto
bereleasedbeforethestartofmeasuringprocedureitself.
WARNING
Theinstrumentshouldneverbeleftwithoutsupervisionortransportedwiththefalling
weightinupperposition.
ATTENTION
Whenperformingatest,onlytheoperatorshouldcomeclosetothedevice.Donotrelease
thefallingweightinthepresenceofotherpersonsindirectvicinity.
ATTENTION
Damagedcablemaygiverisetofire.

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Inthecourseofthechargingprocedure,nomeasurementsshouldtakeplace,asnoreliable
resultscanbeexpected.
WARNING
AccordingtotheDirectiveonWasteElectricalandElectronicalEquipment(2002/95/EG),the
batteryandelectroniccomponentsshouldnotbedisposedofwithdomesticwaste.This
productmustbehandedovertocollectionpointsprovided,responsibleforelectricaland
electricequipment.Insomecountriesmanufacturersofsimilarelectronicequipmentare
boundtotakebackelectronicwaste.Duetopotentiallyhazardoussubstancescontained,
improperhandlingortreatmentmayentailnegativeimpactsonenvironmentandhuman
health.Disposingofelectronicpartsinanappropriatemanneralsocontributestoan
effectiveuseofnaturalresources.Formoreinformation,consultlocalauthorities.
TERRATESTLWDGmbHwilltakebackelectronicwastefreeofcharge,anddisposeofitina
safeandenvironmentallyappropriatemanner.
1.5 PACKAGING
Itisrecommendedtostorethepackagingofthedevicefortransportatalaterdate(e.g.for
calibration).Upondelivery,checkimmediatelythatallgoodsareundamagedandcomplete.Checkin
particularthatthereisnovisibleexternaldamagetothepackaging.Ifthedeviceoranyotheritem
includedinthedamageprovestobedamaged,immediatelyrecordthetypeofdamageandinform
thecarrier.TERRATESTLWDGmbHmustbeinformedaswell,sowecanenterintocommunication
withthecarrier.




[9]
2 SCOPEOFDELIVERY
2.1 BASICPACKAGE
Lightweightdeflectometeracc.toASTME2583„TERRATEST9000LWD“
Consistingof:
 Loadplate„DUO‐SWITCH“foreasyexchangeofplatediameterbetween300mm/11.8‘‘and
150mm/5.9‘‘;
aswellas
o Loadplatediameter100mm/3.9‘‘
o Centralgeophone,measuresdurationandmaximumelasticity
o Measuringelectronics
with„MagicEye“tocontrolthemeasuringprocedure,
transmitsmeasuringresultsviaBluetooth®tosmartphone
with1pieceLithium‐IonbatterySonyUS18650VTC6
o Ultrapreciseloadcelltomeasuredurationandmaximumvalueofimpact
o 4pcs.vibrationdampers
 Fallingweight10kg/22lbs
 Releasingdeviceforadjustmentoffallingheight
 Smartphoneholdingdeviceforcomfortableutilizationofsmartphone‐App
 Supportdisctoscrewontheguiderodforsmartphoneholdingdevice
 Powerpack100...240V/9V2AwithLEMOplug
 ManualinEnglishlanguage
 Calibrationlogacc.tomanufacturerspecification
2.2 OPTIONSUPONREQUEST
 2pcs.externalgeophones
 Loadplate,diameter200mm/7.8‘‘
 2pcs.additionalfallingweightswith5kg/11lbseach
 TransportboxVENEZIAwithintegrated
carryinghandlesandcastors
 TransportsystemCARRELLO
 Tiresadequateforconstructionsites
fortransportboxVENEZIA



[10]
2.3 GENERALVIEW


Smartphone‐holdingdevicewithsupportdisc
onguiderod
Releasingdevicewitheccentricclamp
Two‐partguiderod
Additionalfallingweights5kg(11lbs)each
(uponrequest)
Fallingweight10kg(22lbs)withweightcatchinggrip
Vibrationdamper
Loadcell
Centralgeophone
MagicEye
Electronicsoflightweightdeflectometer
Connectionsocketsforexternalgeophone
OFF/ONbutton
Loadingsocketforpowerpack
Starscrewsforadjustment
ofplatediameter300/150mm
Angledloadplatehandles
Externalgeophone
(uponrequest)
Loadplateringfordiameter200mm
(uponrequest)




[11]
3 SPECIFICATION
3.1 DEVICEDESIGNATION
TERRATEST9000LWD
3.2 SERIALNUMBER
The serial number of the instrument consists of a four-digit number, attached in the form of a sticker to
the cylinder of the central geophone. This sticker should never be removed or become unreadable. The
serial number of external geophones and measuring instrument is identical. Additionally, external
geophone 1 carries designation /G1, the second designation /G2.
3.3 BASICUNIT
Weightofdevice 26kg/53.8lbs
Heightofdevice 1.400mm/54.6‘‘
Maximumadjustablefallingheightoffalling
weights
900mm/35.1‘‘
Weightoffallingweights 10kg/22lbs,
optionally15kg/33lbs,20kg/44lbs
Impact 0‐15kN/3370lbf,Maximumimpactwith
optionalfallingweight20kg/44lbs
Durationofimpact 20‐40ms
Loadplatediameter 100mm/3.9‘‘,150mm/5.9‘‘,300mm/11.8‘‘
optionally200mm/7.9‘‘
Measuringrangeofloadcell 0–25.0kN/0‐5.500lbf
Accuracyofloadcell 0.15%
Sensortype Geophone
Sensorrange 0–2.2mm
Powersupply Long‐liferechargeable
LithiumionbatterytypeSonyUS18650VTC6
ChargingonlybypowerpacktypeSYS1308‐1809‐W2Ew.LEMO®‐plug(9V/max.2A),incl.indelivery 
Numberofgeophones Standard:1centralgeophone
Optionally:2externalgeophones
DimensionsoftransportboxVENEZIA 800x400x350mm/31.2‘‘x23.6‘‘x40.25‘‘
WeightoftransportboxVENEZIA Weightempty19kg/41.8lbs
Totalweight58kg/127.6lbs
incl.completesetofaccessories
3.4 AMBIENTCONDITIONS
Thechargingprocedureshouldonlybeperformedindryindoorlocations
Typeofprotection IP53
Theinstrumentshouldnotbeexposedtodirectrainfall.
Temperaturerange ‐10to+40°C
Maximumaltitude 2.000m
Max.rel.humidity <80%,nocondensation
3.5 POWERSUPPLY
Powerconsumptioninbatteryoperation typ.3.6VDC/0.5A


[12]
3.6 BATTERYPOWER
Along‐lifeLithiumIonrechargeablebatterytypeSonyUS18650VTC63.6Volt,3.12Ahisinstalledin
thedevice.
Thechargingproceduretakesca.4to5hdependingonambienttemperature.Minimumambient
temperatureamounts0°C.
Forcharging,onlythepowerpackinthestandarddeliverymustbeused.Thechargingsocket,
labelledwith„Charger9V/max2A“islocatedbelowtheSTARTbutton.
WhenswitchingONtheinstrument,thechargingstatecanbeviewedbysmartphone‐App
„TERRATEST9000LWD“.Acompletechargecorrespondsto3.6Volt,usuallysufficientfor300
measurements,dependingonambienttemperature,batterylifetimeandotherinfluences.
ATTENTION
Neverattempttoopenthebattery.Improperhandlingorshortcircuitmaygiverisetofire
hazard.
Lithiumisahighlyreactivelightmetal,sothatcorrespondingdirectivesfortransportand
disposalmustbeobserved.Alsoforthisreason,theinstrumentorthebatteryitselfshould
neverbelefttopersonsunawareofpossibledanger.
AccordingtotheDirectiveonWasteElectricalandElectronicalEquipment(2002/95/EG),the
batteryandelectroniccomponentsshouldnotbedisposedofwithdomesticwaste.This
productmustbehandedovertocollectionpointsprovided,responsibleforelectricaland
electricequipment.Insomecountriesmanufacturersofsimilarelectronicequipmentare
boundtotakebackelectronicwaste.Duetopotentiallyhazardoussubstancescontained,
improperhandlingortreatmentmayentailnegativeimpactsonenvironmentandhuman
health.Disposingofelectronicpartsinanappropriatemanneralsocontributestoan
effectiveuseofnaturalresources.Formoreinformation,consultlocalauthorities.

TERRATESTLWDGmbHwilltakebackelectronicwastefreeofcharge,anddisposeofitina
safeandenvironmentallyappropriatemanner.




[13]
3.7 CHARGINGPROCEDURE
Onlythechargingequipmentsuppliedbythemanufacturer
shouldbeusedforcharging.Plugthepowercableintothe
socketlabelledwith„Charger9V/max1,25A“ofthe
electronics,whichislocatedbelowtheSTARTbutton.The
chargingproceduretakesca.4‐5hdependingonambient
temperature.Inthecaseofexhaustivedischarge,the
batterymustbechargedforca.18hours.Maximum
fluctuationinvoltagemustnotexceed10%.Duringthe
chargingprocess,placetheinstrumentinadryroomand
takecarethatitispossibletodisconnectthepowerpack
frompoweratanytime.
PowerPack
Forthatpurpose,onlythepowerpack(SYS1308‐1809‐W2E)
withLEMOplug,approvedbythemanufacturer,shouldbe
used.
Thechargingprocedureonthebasisofthispowerpack
shouldbeperformedindryindoorlocations,atanambient
temperature>0°C.Theinnerpoleisthepositive(+)pole.
Type:SYS1308‐1809‐W2EwithLEMOplug
Prim:100‐240VAC,47‐63Hz,1AClassII
Sec:9V/2A
IP20
TheelectronicsmustbeswitchedOFFbeforehand.Then
insertthechargingcableintothesocketoftheinstrument,
andfinallyconnecttheotherendofthepowerpacktothe
mains.
ATTENTION:
Whendisconnectingthechargingcablealways
graspitfromtheplug.Pullingthecableitselfmay
resultindamagetothewires.
ThechargingcableisequippedwithaplugwithLEMO„PUSHPULL“lockandanti‐kinkprotection.To
connectthecable,firstopenthehingedlidofthesocket,andinserttheplugcarefullyuntilstop.The
plugautomaticallylocksinsidethesocket,fordetachingitmustbeunlocked.Grasponlyfromthe
plugitself,otherwisecableandsocketmaybedamaged.
ATTENTION:
Inthecourseofthechargingprocedure,nomeasurementsshouldtakeplace,asnoreliable
resultscanbeexpected.



[14]
3.8 EXCHANGEOFBATTERY
Batteryexchangeisreservedtoqualifiedpersonnel.
ThebatteryshouldonlybereplacedbytheoriginalmodeltypeSonyUS18650VTC6,3.6Volt,3.12Ah.
Procedure:
1. TheelectronicsmustbeswitchedOFFbeforehand.

2. UseanAllenkey2.5mmtodetachthe4hexagonsocket
screwsofthecaseplateoftheelectronicsbyturning
counterclockwise.





3. Carefullyremovethecoverplateoftheelectronics.The
circumferentialEMCgasketshouldnotbedamaged
meanwhile.





4. Removethebatteryandinsertthenewitem
(typeSonyUS18650VTC6,3.6Volt,3.12Ah).Correct
polaritymustbeobserved!

5. Securethebatterybyattachingastripofhotglue.

ATTENTION:
Neverattempttoopenthebattery.Improperhandlingorshortcircuitmaygiverisetofire
hazard.
Lithiumisahighlyreactivelightmetal,sothatcorrespondingdirectivesfortransportand
disposalmustbeobserved.Alsoforthisreason,theinstrumentorthebatteryitselfshould
neverbelefttopersonsunawareofpossibledanger.







[15]
4 GENERALOVERVIEW
4.1 INTRODUCTION
The„TERRATEST“‐productfamilycombineshighlymodernmicroelectroniccomponentswiththe
propertiesofanaccurateergonomictestinstrument,whichisextremelysuitablefortheuseon
constructionsites.
4.2 INNOVATIONS
All„TERRATEST“‐productshavesuchoutstanding,innovativefeaturesthattheyhavebecome
globallyuniquetestinginstrumentsformeasuringbearingcapacity:
4.2.1 MechanicalInnovations:
 Ergonomic,hexangularweight‐catchinggripofthefallingweightforcomfortablehandling
 Angledloadplatehandlesasacouplingtothemobiletransportsystem„CARRELLO“
 Simpleassembly/dismantlingoftheguiderodandtheholdingdeviceforsmartphoneto
ensuresafeandspace‐savingtransport
4.2.2 ElectronicInnovations:
 DatatransferviaBluetooth®
 Safeconnectionbyvaluableplugsandsockets
 User‐friendly,comfortablesmartphone‐Apptorecordmeasurements
 MagicEyetovisualizethecontrol
4.3 DYNAMICLOADPLATETEST
Thedynamicloadplatetestwiththelightweightdeflectometerrepresentsatestmethodduring
whichthegroundissubjectedonanimpactload(Fmax).Thisimpactloadisgeneratedbyaweight
fallingontoaloadplatewithdefineddiameter.Theparameterforthedeformabilityofthesoilunder
thisdefinedverticalimpactloadisthesocalledEmodvalue.
Toensurehomogenousandrepeatableresultsitisrecommendedtoestablishgeneralprocedures
anddirectivesbeforeperformingtests.TheDanishinstituteforroadconstructiondefinedintheyear
of2006guidelinesfortest,analysisandreportintheformofan“approachforapreliminarytest
method”,summarizedinthefollowing.
Inordertoestimatelayerthicknessanddeterminenon‐linearity,eachtestingpointshouldbe
measuredinthelayerswithdifferentplatesizesandloadstages.Forinspectionofunboundmaterial,
thefollowingvaluesarerecommended:
Granularbaselayers 29‐44psi/200‐300kPa
Subbaselayers 15‐29psi/100‐200kPa
Solidsubgrades 7–15psi/50–100kPa
Softsubgrades 1,5–9psi/10–60kPa

Settlementsbetween300µm2200µmarepreferred,theoptimumrangeisbetween500µmand
1500µm.Setthepulsedurationoftheimpacttoavaluebetween15and25msec.,theparameter
canbeadaptedbyfourorthreevibrationdampers.
Inordertoensurehomogenouspressuredistributionbelowtheplate,astablecontacttothetesting
surfacemustbeachieved.Disturbingobjectslikestonesshouldberemovedbeforehand.Foruneven


[16]
surfaces,itisrecommendedtocoverthesoilwithathinlayerofsandtofillgaps.Positiontheplate
onthesurfaceinhorizontalorientation,asaccuratelyaspossible.
Instateofdelivery,thecentralgeophoneisfixedbyacoverscrew,locatedcentrallyatthebottomof
theloadplate,toberemovedbymeansofacoinoraflatscrewdriver.Afterwardsthetappet
includedinthedeliverymustfirmlybeboltedatthatposition.
Beforereleasingthefallingweight,thegeophonemustbecenteredagain.Forthatpurposeunlock
thetransportsecurity,pullitup,putitdownagainandreinsertthelockofthetransportsecurityin
lowestposition.Verifythevaluesstoredinthesmartphone‐App„TERRATEST9000LWD“,particularly
withrespecttotheplateradius.
Betweenthetests,contaminationofthedevicemustberemovedtoensureaccurateresults.
Onverycohesiveormoistenedsubsoil,performmeasurementwithoutmakinguseofthetappetof
thecentralgeophone.Toachievethis,fixthecentralgeophonebymeansofthetransportsecurityin
lowestposition,andboltthecoverscrewfrombelowintothegeophone.
4.4 SCOPEOFAPPLICATION
Thedynamicloadplatetestwithlightweightdeflectometerissuitablefortestingthebearing
capacityandassessingthecompactionqualityofunboundorpartiallyboundsoilforearthworksand
roadconstruction.‘Soil’shouldbeunderstoodasincludingbackfillmaterials,basecourseswithout
binders,soilimprovements,coldrecyclinglayers,mineralsealinglayers,asphaltandnotyetcured
concrete.Thetestingmethodisespeciallysuitableforcoarse‐grainedandmixed‐grainedsoilswitha
maximumgrainsizeof63mm.
4.5 CALIBRATION
„TERRATEST9000LWD“beforedeliveryiscalibratedacc.tomanufacturerspecification.Duringthis
procedure,allcomponentsareattunedspecificallytooneanother.Aftercompletion,respective
calibrationtagswiththeexpirydateareattachedtothecentralgeophonebetweentransport
securityandelectronics.Acalibrationcertificateisprovidedaswell.Atleastonceperyear,
recalibrationbyTERRATESTLWDGmbHisrequired.Testresultsofadevicethathasnotbeen
calibratedorofadevicewithexpiredcalibrationdatemustnotbeusedforevaluationofthebearing
capacityofsoilorrock.Prescribedcalibrationintervalsthereforemustbeobserved.
4.6 RULESFORPROPERUSE
1. Removeanyexistingloosematerialfromthetestarea;createasmoothandlevelsurfaceon
whichtoplacetheloadplate.Ensurefullandevencontactbetweenloadplateandground.
Inthecaseofsoilirregularities,spreadathinlayerofsandonthesurfaceandreducethe
thicknessofthelayerbymovingtheplatebackandforth.
2. Beforeeachmeasurement,thegeophonehastobecenteredagain,byshiftingupanddown
thetransportsecurity.
3. Atightconnectionoftheguiderodmustbeensured.Thereforebetweenthemeasurements,
repeatedlycheckitsscrewing.
4. Graspcablesfromtheplug.Pullingthecableitselfmayresultindamagetothewires.
5. Beforeeachtest,makesurethatthebottomsideoftheplateisclean,andremoveadhering
coarsematerial.
6. Thegrainsizeofthematerialtobeinspectedislimitedtomax.63mm.


[17]
ATTENTION
Testresultsofadevicethathasnotbeencalibratedorofadevicewithexpiredcalibration
datemustnotbeusedforevaluationofthebearingcapacityofsoilorrock.Prescribed
calibrationintervalsmustbeobserved.
ATTENTION
TERRATESTLWDGmbHshallnotbeliableforanydamage,consequentialdamageorfinancial
lossthatoccursasaresultofimproperuseand/orlackofprofessionalknowledgewhen
evaluatingthetestdata.Itisessentialtoensurethatthecalibrationisuptodateandthatthe
deviceisoperatedinaccordancewiththeinstructionsofthisdocumentandlocalstandards.
ACHTUNG
Alwayscrosscheckwithyourdomestictestmethod,tomakesurethattestresultswillbe
reliable.
4.7 ASSEMBLY
Forprofessionaltransport,thelightweightdeflectometer„TERRATEST9000LWD“isshippedin
dismantledstateintransportbox„VENEZIA“.



Dimensionstransportbox
„VENEZIA“:
800x400x350mm/
31.2‘‘x23.6‘‘x40.25‘‘
Weighttransportbox„VENEZIA“:
Weightempty19kg/41,8lbs
Totalweight58kg/127,6lbs
incl.completesetofaccessories




Thedeliverycontainsa17mmspanneraswellasAllenkeys6mm,5mmand2.5
mm.



[18]
Assemblyprocedure:
1. Screwthefirstguiderodpart(theelement
withoutscale)intotheadapterinthecenter
oftheloadcell,locatedbetweenthevibration
dampers.







2. Nowintroducetheboreofthefallingweightintothelowerguiderod.
Placethe10kg(22lbs)‐fallingweightontotherubbervibration
dampers.








3. Boltthesecondguiderod(theitemwithscale)fromaboveintothe
firstguiderodfromabove.Thescrewconnectionmustbetight.








4. Slidetheboreofthereleasingdevice
(withthebluehandlepointingupward)
overtheguiderod,andfixtheassembly 
bymeansoftheeccentricclampatthe
desiredheight. 

5. Nowremovetheassembledmeasuring
instrumentfromthe„VERONA“‐
Transportbox.

6. Placetheloadplateonalevelstableground.




[19]
7. Firmlyboltthediskforthesmartphoneholdingdeviceontotheupperendoftheguiderod.

8. Fixthesmartphoneholdingdeviceonthediskbymeansofthesuctionfoot,bypressing
downthesmallleverinthefrontoftheholder.

9. Formeasurementstobecarriedoutwithtappetandnotwithgeophonefixed,installthe
tappetbeforehand.Instateofdelivery,thecentralgeophoneisfixedbyacoverscrew,
locatedcentrallyatthebottomoftheloadplate,andtoberemovedbymeansofacoinora
flatscrewdriver.Afterwardsfirmlyboltthetappetincludedinthedeliveryatthatposition.




[20]
4.7.1 LoadPlateDiameter
Instateofdelivery,theloadplate„DUO‐SWITCH“ismountedtothelightweightdeflectometer
„TERRATEST9000LWD“,whichallowseasyexchangebetweendiametersof300mm(11,8‘‘)and150
mm(5,9“).Thedefaultconfigurationis300mm(11,8‘‘).
4.7.1.1 DiameterofLoadPlate100mm(3,9‘‘)
Fordiameter100mm,firstdetachtheinstalled„DUO‐SWITCH“loadplatefromthecylinderofthe
centralgeophonesasfollows:
1. UnscrewthesixhexagonsocketheadscrewsM6x20fromthedark‐grayretainingringatthe
bottomoftheloadplate.
2. Removethisretainingring.
3. DetachthesixhexagonsocketheadscrewsM6x20,whichbecomevisiblewhentheringhas
beenremoved.
4. Placetheloadplateonastableground.
5. Loosenthethreestargripsatthetopoftheloadplatebyturningthemcounterclockwise.
6. Liftoffthecylinderofthecentralgeophonefromtheloadplate.
Withoutthe„DUO‐SWITCH“element,thediameteroftheloadplatefinallyamountsto100mm
(3,9‘‘).
4.7.1.2 DiameterofLoadPlate150mm(5,9‘‘)
Themountedloadplate„DUO‐SWITCH“consistsofaninnerandanouterring,guidedinamobile
manner.Whendiameter150mmisdesired,firstthethreestargripsatthetopoftheloadplate
mustbeloosenedbyturningthemcounterclockwise.Rotatetheouterpartoftheloadplate,until
themarkoftheinnerringmatchesthe150mm–markattheouterring.Theouterringfromnowon
isincontactwiththerestoftheassemblyonlyinamobilemanner,andtheloadplateinthissetting
disposesofadiameterof150mm(5,9‘‘).

