Gigasense RTM-D User manual

  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page1/16
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RTM‐D
RopeTensionMeter
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  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page2/16
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SYMBOLSUSED........................................................................................................................................3
IMPORTANTINFORMATION....................................................................................................................3
GENERAL–INTENDEDUSE......................................................................................................................3
CONSTRUCTION.......................................................................................................................................4
SAFETYINFORMATIONANDWARNINGS................................................................................................4
SPECIFICATIONS.......................................................................................................................................5
SAFETYANDENVIRONMENT...................................................................................................................5
FUNCTION................................................................................................................................................5
RTM‐DMAINPARTS................................................................................................................................6
FUNCTION................................................................................................................................................7
MEASURINGPRACTICE............................................................................................................................8
HANDLING...............................................................................................................................................9
BEFOREUSE...........................................................................................................................................13
MEASURINGINSTRUCTIONS.................................................................................................................14
ERRORCODES........................................................................................................................................14
MAINTENANCE......................................................................................................................................15
TROUBLESHOOTING..............................................................................................................................15
IDENTIFICATIONANDSPAREPARTS......................................................................................................15
REPLACEMENTOFPARTSANDDISPOSAL.............................................................................................16
RECOMMENDEDSPAREPARTS.............................................................................................................16
CE‐CERTIFICATION.................................................................................................................................16
MANUFACTURERCONTACT..................................................................................................................16
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Revisionhistory:
Rev000_2019‐09‐04 Firstedition
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  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page3/16
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SYMBOLSUSED
Thefollowingsymbolsareusedthroughoutthisdocumentation,and/ormarkedontheproduct:
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CAUTION.Thissymbolontheequipmentindicatesthatthemanualmustbeconsulted.
Inthismanualitappearsbeforeinstructions,whichifnotfollowed,mayresultin
productdamageorimproperfunction.
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CE‐mark.Indicatesthatweasamanufacturerdeclarethatthisproductisinconformity
withallrelevantCE‐markingDirectives.
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Followlocalregulationsregardingrecyclingatdisposalofthisproduct.Thisproduct
mustbedisposedofseparately,andnotwithnormalhouseholdwaste.Seeseparate
sectioninthismanual.
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IMPORTANTINFORMATION
Toensuresafeoperation,thismanual,togetherwithapplicablelocaluserindustry’ssafetyrules
andregulationsmustbefollowed.
Gigasenseproductwarrantyisnotvalidifothermodificationsthanthosedescribedinthismanual
aremade.
GigasenseABwillnotberesponsibleforanyotheruseofthisproductthantheintendeduse,
whichisspecifiedinthismanual.
Thebuyerofthisproductisresponsibleforgivingonlyadequatelytrainedpeopleaccessto
installation,commissioning,maintenanceandusageofthisproduct.Theusersandinstallation
personnelmusthavereadandunderstoodthismanual,beforeusingorinstallingthisproduct.
Theinstructionsinthismanualmustbefollowedininstallation,usageandmaintenance
procedures.
GigasenseABwillnotacceptanyresponsibilityforfailureduetomisuse,improperinstallationor
impropermaintenance.
Apartfromtheabove,theremaybelocallaws,safetyregulationsanddirectivesfrompublic
authorities,relevantfortheuseofthisproduct.
GENERAL–INTENDEDUSE
TheRopeTensionMeterRTM‐Disaninstrumentspeciallydesignedformeasuringthetensionin
differentkindofropes.Themeasurementsaremadeaccurateandswiftlysomewhereonthe
tensionedrope,withoutanyextrapreparations(off‐loadinge.t.c.).Themeasurementscanbedone
onropeswithdifferentdiametersanddifferentdesigns.Theropescanbemadeofsteel,metalor
plasticmaterial,andusedasGuy‐wires,suspensionwires,supportwiresforcautionarysystemse.t.c..
TheRTM‐Disabletocontainupto10differentcalibrations,i.e.measurementscanbedoneon10
differentropes,”RopeNo:s”,withoutbeingforcedtouseconversiontables.Onthedisplayyouget
therighttensionfortheseropes.WiththeRope‐Listattachedtotheinstrument,youcanselectthe
correct”RopeNo”(calibration).Inordertostronglyincreasetheaccuracyofthereadings,eachrope
iscalibratedatfourpoints.Theseare:0%,30%,60%and100%of”CalCap”.
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  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page4/16
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Type:RTM‐DS/N:XXXXDate:18‐12‐01
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Norm.Unit:lbsx1000
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Alt.Unit:kN
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Rope – List (example)
Cal Cap = Max calibrated capacity for each Rope
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CONSTRUCTION
The RTM-D is made of side plates with anodised aluminum. The RTM-D is corrosion and weather
resistant.
SAFETYINFORMATIONANDWARNINGS
 Supplementaryprotectivemeasuresmayberequiredonthebasisofriskassessmentsforthe
application.
 Thesystemmustbetakenoutofoperationintheeventofdamage.
 Thepersonnelwhoworkandoperatethesystemareresponsibleforunderstandingthefunction
describedinthismanual.Ifanyquestionsoruncertaintiesoccur,GigasenseABmustbeinformed
beforethesystemisputisused.
 Acorrectfunctionmustbeverifiedbeforethesystemisputinnormaloperation.
 Ifthisequipmentisusedinamannernotspecifiedinthismanual,orbyGigasenseABpersonnel,
protectionorfunctionnormallyprovidedbythisequipmentmaybereduced.
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Sel.
r
ope:Peak+On/Off Toggle: +/‐ Confirm: Enter/Ze
r
o
RopeNo.Diameter
–
TypeA
r
ea(mm2) Cal.Cap.(100%)
‐1‐0.29” 1x731.7 2.2x1000lbs
‐2‐0.36” 1x751.7 6.6x1000lbs
‐3‐0.42” 1x768.6 8.8x1000lbs
‐4‐0.52” 1x7102.0 11.0x1000lbs
‐5‐0.61” 1x7143.6 11.0x1000lbs
‐6‐0.70” 1x7183.0 11.0x1000lbs
‐7‐
‐8‐
‐9‐
‐0‐

  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page5/16
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SPECIFICATIONS
Max Cap = RTM-D’s Max. Capacity
Cal Cap = Max calibrated capacity for each Rope
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SAFETYANDENVIRONMENT
 Testinginstrumentforswift,handyandaccuratetestingofpretensionedstationaryropes.
 Cantemporarilybeoverloadedwith100%ofitsnominalcapacitywithoutaffectingthe
accuracyoftheinstrument.
 TheRTM‐Disdeliveredinarobustandlightweighttransportcase(760x400x170mm)for
easyhandlingandprotectionoftheinstrument.
FUNCTION
TheRTM‐Disverysimpleandhandytouse.Simplyholdand”clip”ittotheropetobetestedanduse
thelargehandscrewtodeflecttheropetoafixedangle.Theresultantforcewillthenaffecttheload
cellandmeasurethetensioninthewirerope.Theresultantsignalisdigitallyprocessedand
displayedinagraduationselectedandpreprogrammed.TheRTM‐DcanbegraduatedinkN,klb.orin
metricton.
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RTM‐DMax.cap.lbs/kg 4400/2000 11000/5000 22000/10000 44000/20000
Resolution(guidance).Normallyseparatelysetfor
each”RopeNo”/Cal.Cap.lbs/kg 25 10 20
Ropedim.interval,approx.from0.23”‐/6mm‐
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Ropedim.interval,approx.from0.35”‐/9mm‐
Ropedim.interval,approx.from0.51”‐/13mm‐
Ropedim.interval,approx.from0.71”‐/18mm‐
MaindimensionsRTM‐D (LWH)26.97”x5.51”x14.96"/685x135x380mm
WeightRTM‐D 14lbs/6,2kgnet
MaindimensionsTransp.Case (LWH)29.92”x6.69”x15.75”/760x170x400mm
Weight(RTM‐D+Transp.Case) 24.8lbs/11,2kg
Accuracy(dependentonwireropetypeand
characteristics) 2‐6%ofmax.capacity
Temperaturerangeambient ‐4°F‐+140°F/‐20°C‐60°C
Display LCD0–19999
Digitsize 0.47”/~12mm
Batterylife‐time(hours) 25(Alkaline9Vbattery6LR61)
Degreeofprotection(IEC529,NEMA IP65
Material adonizedaluminium

  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page6/16
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RTM‐DMAINPARTS
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1.Tighteningdevice   8.Display
2.Clampingjaw   9.Pullrod
3.Tighteningscrew   10.Leafspringunit
4.Centresupport(flat)   11.Loadcell  
5.Outerropesupport   12.Batteryunit
6.Electronicunit   13.Batteryunitopening
7.Pushbuttons
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
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  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page7/16
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FUNCTION
Bymeansofthetighteningdeviceofthecentresupport,
theropeisforcedtodeclineaccordingtofigure
4:1.Theanglewillalwaysbethesameastherope
ispressedagainstthefixedcentresupportbymeans
oftheclampingjaw.Eveniftheropediameteris
changed,theanglewillstaythesame.
Aresultantforceisthenobtained,perpendicularto
themaindirectionoftherope,seefigure4:2.
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sinα=0.5Xx1/F
F/X=20(standardRTM‐Dratio)
sinα=0.5Xx1/20X
α=1.43°i.e.givesaratioof20:1
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Theresultantforceaffectsthepullrodwhichisfirmly
connectedwiththeflatcentersupport.Thepullrod
affectsinitsturntheloadcell,whichgivesanelectrical
signalwhichisproportionaltotheforce.Thesignalis
amplified,convertedandindicatedontheLCDdisplay
oftheinstrument.
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TheLoadCell
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Theloadcellismadeoftoughenedsteel.
Itisconstructedwithstraingauges(wheatstonebrigde).
Theloadcellhassupportsintheendpoints
andwillthereforebendwhenthepullrodisloaded
(figure4:3).
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4:1
4:2
4:3
4:4

  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page8/16


MEASURINGPRACTICE
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General
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MeasurementsusingtheRTM‐Dcanbemadeintwodifferentways:
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1. TheropetobemeasuredisloadedtotheforceX.TheRTM‐Disinstalledandthetension
valueisreadonthedisplay.
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2. TheRTM‐Disinstalledontheropewhenitisslack.ThentheropeisloadedtotheforceX.
Afterthatthetensionvalueisreadonthedisplay.
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Experiencehasgiventhatabettermeasurementresultisobtainedwhenusingmethod1above.
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AllRTM‐D’s(”RopeNo:s.”)arenormallycalibratedformeasuringaccordingtomethod1,i.e.
measuringonanalreadytensionedrope.
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Varioustypesofropes
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OnthesignatthehandleoftheRTM‐D,themaxropedimension(diameter)isengraved,decided
fromtherangeoftheouterropesupports.Thelimitforusableminropedimensionismore
approximate.YoucanfindsomeguidanceunderSpecifications.
Formultistrand(flexible)ropesyounormallyobtaingoodaccuracy,evenifthediameterand/orthe
numberofstrandsdifferfromthecalibrationrope.Whenitcomestomeasurementsonrigidropes
withfewstrands,theaccuracywillbelessifthediameterand/ortheconstructionoftheropediffer.
Itisespeciallyobviousforthickstiffropes.Yougetthebestaccuracywhenmeasuringonarope
identicaltothecalibrationrope.

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Measuringonatensionedrope(check)

Theinstrumentisnormallycalibratedformeasuringonanalreadytensionedropeaccordingto
method1above.Firstyouselectcorrect”RopeNo”,dependingonwhichropeyouaregoingtomake
measurementson.TheRTM‐Dthenshouldbemounted/tightenedtothetensedrope.The
measurementresultonthedisplayshowsthetensionforceintherope.Itisoftensuitableto
performafewmoremeasurementsatdifferentspotsontherope.
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Slackropetoaspecifiedtension
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Select”RopeNo”.InstalltheRTM‐Dontheslackrope.LoadtheropeuntiltheRTM‐Dshowsapprox.
90%ofthedesiredendvalue.LoosentheRTM‐Dandtheninstallitagain.TheRTM‐Dwillnow
indicateahighervalue,probablyratherclosetothedesiredendvalue.Ifnecessary,makean
adjustmentofthetensionwiththeRTM‐Dinstalled.LoosentheRTM‐Dandcheckagain.TheRTM‐D
shouldalwaysbecompletelyloosenedbetweenmeasurements.
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

  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page9/16
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HANDLING
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HowtousethePushbuttons
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PresstheON/OFFbuttontostarttheinstrument.Thestartupisindicatedonthedisplaybyshowing
selected”RopeNo”(earlierusedrope)forabout2seconds,e.g.
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TheunitisturnedoffbypressingandholdingtheON/OFFbuttonforabout1second.Theunitwill
alsobeautomaticallyturnedoff,ifanyofthebuttonshavenotbeenactivatedwithina
programmabletime.Thetimecanbesetbetween1and60minutesandthisisdescribedinpage12.
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Wheninstalledonthecompletelyslackrope,theRTM‐Dshouldindicatezeroonthedisplay,
otherwiseyouhavetozerotheinstrument.Whenyousettozero,holdtheRTM‐Dwiththe
tighteningdevicehangingverticallyorputtheRTM‐Dinthispositiononaslackrope.
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TheinstrumentiszeroedbypressingandholdingtheENTER/ZEROforabout2seconds.Thedisplay
willIndicate
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Thezero‐settingremainssavedeveniftheRTM‐Disturnedoff.Thiszero‐settingshouldonlybedone
whentheropeisuntensioned.
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

  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page10/16

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ZERO‐settingoftheinstrument
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KeeptheRTM‐Dverticallyaccordingto:
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A.Hanginginthehandle
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or:
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B.Restingontheupper
supports–nottightened
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ThenpresstheZERObuttonforapproximately5seconds
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IfyouZERO‐settheRTM‐D–tightenedonaropeundertensionyouwillgetanincorrect(low)
readoutonthedisplay
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

  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page11/16
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PeakValue–highestdisplayedvalue
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Theinstrumentautomaticallystoresthehighestdisplayedvalue.Thispeakvaluecanoriginatefrom
anyofthedifferent”RopeNos.”.ThepeakvalueremainssavedeveniftheRTM‐Disturnedoff.To
displaypeakvalue,pressandholdinthePEAKbutton.Whenthebuttonisreleased,thedisplaywill
indicatethepresenttensionvalue.
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DonotforgettoresetthePeakValuebeforedoingnewmeasurements.
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Toresetthepeakvalue,dothefollowing:
PEAK+ENTER/ZEROi.e.
PressandholdinthePEAKbutton
PresstheENTER/ZERObuttontoo
ReleasetheENTER/ZEROandPEAKbuttons
Thepeakvalueisalsoresettediftheinstrumentissettozero.
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UNIT–AlternativeUnit
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TheUNITbuttonisusedtochangebetweennormalunitandalternativeunit.Thealternativeunit
modeisindicatedbyaflashingcolon:ontheleftsideofthedisplay.TheRTM‐Dcane.g.have
normalunitinlbsandalternativeunitinkN.Togetthetensiondisplayedinthealternativeunit,the
electronicsmultiplythenormalreadingbyaprogrammedfactor.Thefactorcanonlybechangedin
thecalibrationmode.IftheUNITisheldinforabout2seconds,thedisplaywillfirstindicatethe
present”RopeNo”for2secondsandthenthebatteryvoltage,untilthebuttonisreleased.Thisis
indicatedbythattheLOBATindicatorislitandtheprefix”b”isviewedbeforethevoltage,
e.g.
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LowBatteryVoltage
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ThebatteryvoltageiscontinuouslymeasuredandtheLOBATindicatorwilllightupwhenthevoltage
dropsbelowapprox.7.0V.Atthatpointyouwillhaveamaximumoftwohoursofoperationleftfrom
alithiumbattery(orapp.1hourfromanalkalinebattery).Ifthebatteryvoltagedropstolow(app.
5.6V),anerrormessagewillbedisplayedforabout4secondsandafterthattheunitisautomatically
turnedoff.Thisensurescorrectfunctionduringmeasuring.Changebattery.
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

  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page12/16
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

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Select”RopeNo”
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TheRTM‐Dcanhaveupto10differentcalibrations(10differenttypesofropes).
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Thesearestoredinpositionscalled”RopeNo”–1–,2–,….....–9–and–0–.
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Youhavetoselecttheright”RopeNo”foryourmeasurements.Lookattheropelist.Ifyouwantto
uselastused”RopeNo”,youjustturnontheRTM‐DwiththeON/OFFbutton.Ifyouwanttoselect
another”RopeNo”,turnontheRTM‐Daccordingto:PEAK+ON/OFF.
Thedisplaywillindicatelastused”RopeNo”e.g.
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UsethePEAKbuttontoincreaseortheUNITbuttontodecreaseuntilthepreferrednumberis
displayed.Onlytheprogrammedandcalibrated”RopeNos.”willbeavailable.The”RopeNo”andthe
correspondingropetypearepresentedintheropelistattachedtotheinstrument.Acceptby
pressingtheENTER/ZERObutton(forabout2seconds)untilacolon:islitupontheleftsideofthe
displaye.g.
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Thatistheindicationthatthestored”RopeNo3”hasbeenopened.Youcancanceltheselectionand
gobacktopreviousropebypressingON/OFF.Theselectedropewillremaininuseeveniftheunitis
turnedoff.
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AutomaticTurnOFF
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Selectionofturnofftime.Tosavethebattery,theinstrumentwillautomaticallybeturnedoffifno
buttonisactivatedwithinaprogrammabletime.Thetimecanbesettomax60minutesandisdone
whenyoustartuptheRTM‐D:
UNIT+ON/OFF
Thedisplaywillfirstindicate:andthereafter.XXisanumberbetween1and60
(minutes).UsethePEAKbuttontoincreaseortheUNITbuttontodecreaseuntilthepreferred
numberofminutesisdisplayed.AcceptbypressingtheENTER/ZERObutton(forabout2seconds)
untilacolon:islitupontheleftsideofthedisplay.Thatistheindicationthatthetimehas
beenstoredinthepermanentmemory.Thetimewillremaininuseeveniftheunitisturnedoff.You
cancanceltheselectionandgobacktoprevioustimebypressingON/OFF.
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

  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page13/16
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SerialNumberandstateofrevision
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IftheENTER/ZERObuttonisheldwhiletheRTM‐Disstarted,serialnumbere.g.willbe
displayedforabout1.5secondsandthereafterthestateofrevisionforabout2seconds.
AfterthattheRTM‐Dwillgobacktonormalmode.
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Overload
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Theinstrumentwillindicatefortwokindsofoverload.Inbothcasesthedisplayedvaluewillbe
flashing.Theunitwillindicateanoverloadbyflashingthedisplayreadinginabout1Hz.Ifthe
overloadisduetothatthe”CalCap”ofthat”RopeNo”hasbeenexceeded,thereadingisflashing
slowly.Iftheoverloadisduetothatthe”MaxCap”(theloadcell)oftheRTM‐Dhasbeenexceeded,
thereadingisflashingrapidly.Itcanbedifficulttoimmediatelyunderstandwhatkindofoverload
thatisdue,butitisimportanttoreducetheloadassoonasthedisplayflashes.
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BEFOREUSE
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CheckthatthebatteryoftheinstrumentisingoodconditionasperLowBatteryVoltageparagraph
6:1:5.Checkthatthethreadsofthetighteningscrewarecleanandwelllubricated.ROCOLASP
greaseorequalmolybdenumdisulphidegreaseissuitable.


  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page14/16
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MEASURINGINSTRUCTIONS
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Unscrewtheclampingjaw1bymeansofthetighteningscrew2enoughtoprovidespaceforthe
rope.InstalltheRTM‐Dontheropeforgoodcontactontheouterropesupports3.Trynotto
measureclosetoropeattachmentsetc.Screwtheclampingjaw1byhandtostop.Theropethen
shouldbetighttothecentresupport4withoutbeingdeformed.
AfterUse
Dirtinthethreadsofthetighteningscrew(2)mustberemoved.Lubricateifnecessary.
Cleantheinstrumentandcheckthebatterycondition.Keep/carrytheinstrumentinthe
transportationcaseprovided.
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ERRORCODES
Thefollowingerrorcodescanbedisplayedatstartuporwhileinuse.Theerrorcodesareusefulifthe
unitmustbesentawayforservicemaintenance.
Code Explanation Measure
  Toolowbatteryforreliablemeasurement Changebattery
  Internalerror(EEPROM‐memory)Contactservice
  Internalerror(RAM‐memory)Contactservice
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  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page15/16
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MAINTENANCE
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TomaintaintheaccuracyoftheRTM,werecommendtosendittoGigasenseforrecalibrationona
regularbasis.Howoftenitneedstoberecalibrateddependsonhowoftenitisused.Ingeneral,we
recommendtosenditforrecalibrationeverysecondyear.However,ifRTMisusedfrequentlyas
severaltimesaday,werecommendtosenditforrecalibrationeveryyear.
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RTM‐Disdesignedtobemaintenancefree.Incaseofcleaningtheequipment,thisshouldbedone,
bygentlywipingitoffwithadryordampcloth.
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TROUBLESHOOTING 
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1.Error: Thedisplayflashesslowlywhenused
Cause: RTM‐Disoverloadedattheactualmeasuredwirerope
Solution: Reducetheload
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2.Error: Thedisplayflashesrapidlywhenused
Cause: TheRTM‐Dloadcellisoverloaded
Solution: Reducetheload
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3.Error: Theaccuracyisbad
Cause: Theropeisnotincorrectposition
Wrongwireropeisselected
Solution: See“Measuringinstructions”and“SelectropeNo”forcorrectinstallation
IDENTIFICATIONANDSPAREPARTS 
Identification:RTM‐D
Sparepartunitpartno.:



  UserManual,RopeTensionMeterRTM‐D
ManualRTM_000_190904_EN.docx ©GigasenseAB Page16/16
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REPLACEMENTOFPARTSANDDISPOSAL 
Ifafailureshouldoccur,itisrecommendedtosendbacktheunittothemanufacturerforrepair.
ReplacedanddisposedpartscanbesenttoGigasenseABfordestruction.
RECOMMENDEDSPAREPARTS
TheRTM‐Ddoesnotrequireanyspareparts,exceptfora9Vbattery.
CE‐CERTIFICATION
Hereby,GigasenseAB,declaresthatthisequipmentisincompliancewiththeessentialrequirements.
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MANUFACTURERCONTACT
Salesandservice
GigasenseAB
Stationsvägen16,
18450Åkersberga
SWEDEN
Phone+46854083900,fax+46854021364
E‐mail[email protected]
www.gigasense.se
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