Brookfield DV3T Rheometer Manual de usuario descargar pdf (Pagina 53)

Brookeld Engineering Labs., Inc. Page 53 Manual No. M13-2100

Torque Reduction

Torque Reductionispercentagechangeintorquevaluebetweensuccessivedatapoints.That

is,thematerialyieldsorbeginstobreakdownand,asaresult,themeasuredincrementaltorque

beginstodecrease.Avalueof100%forthisparametercausesthetesttostopassoonasthere

arenotorqueincreasesduringabasetimeincrement.Someusersmaywishtoseeadropin

torqueaftertheyieldpoint.Settingthisparametertovaluesgreaterthan100%allowsdatato

becollectedaftertheyieldpointbytheEZ-Yield

softwaresothedecreaseintorquemaybe

moreeasilyvisualized.However,thiswillalsoaffectthecalculatedyieldstressvalue.

TIP:Brookeldrecommendsatorquereductionvalueof100%.

Yield Limits

ThesestressvaluescanbeusedasaQualityControltool.Iftheresultingyieldstressfroma

testfallsoutsidetheselimits,anappropriatemessageisdisplayedandprintedwiththeresults.

Enteringzero(0)forboththeseparametersdisablesthisQCfeature.

Instructions

Recordspecicinstructionstotheoperator.Thisinformationwillbepresentedimmediately

whentheprogramisRun(seeFigureIV-6).Theoperatorisrequiredtoacknowledgethemessage

beforetheprogramwillcontinue.

Figure IV-6

TIP:Iftheoperatorselects“Donotshowthismessageagain”withintheInstructionsmessage

box,thenInstructionswillnolongerbedisplayedforanytest.Thisconditioncanbe

resettoallowInstructionstobedisplayedintheDisplaysectionofUserSettings

TIP:Instructionscanbeviewedduringthetestbyselectinginstructions(more/lessbar)in

theViewTestscreen.

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Brookfield DV3T Rheometer Manual de usuario Pagina 53