Brookfield DV3T - IV.5 Test Parameters

Brookeld Engineering Labs., Inc. Page 50 Manual No. M13-167-A0415
intheSettingsmenu.ChooseTemperatureandyouwillbepresentedwiththeTemperaturemenu
(seeFigureIV-3).TemperatureOffsetisdescribedinSectionIV.1.
SelectTemperatureControllerandyouwillbepresentedwiththeDefaultTemperaturemenu(see
FigureIV-4).Thismenuallowstheuserto1)initiatecommunicationwiththetemperaturecontroller
and2)setadefaulttemperature.
InitiatetemperaturecontrolbypressingtheTestConnection.Theconnectionstatuswillbeconrmed
withamessagebox.
The Default Temperature is the temperature value that the control device will return to at the
conclusionoftheTest.Thisvalueissetonlyifthecheckboxischecked.Whenthecheckboxis
uncheckedthetemperaturecontrollerwillholdatthelastsetpointusedintheTest.
TIP:Whenatestinvolvesseveraltemperaturesetpoints,settheDefaultTemperaturetotherst
setpointusedintheTest.ThiswillreducethetransitiontimefromoneTestruntothenext
Testrun.
IV.5 Test Parameters
TheCongureYieldTestscreenincludesseveralparameterstospecifythetestmethod;Spindle,
ImmersionMark,Pre-ShearSpeed,Pre-ShearTime,ZeroSpeed,WaitTime,RunSpeed,Torque
Reduction,andTemperature.TherequiredparametersareSpindle,ImmersionMark,RunSpeed
andTorqueReduction.AllotherparametersareoptionalincludingthoseshownbelowtheMore/
Lessbar;YieldLimit,Instructions,SavePath.
Spindle
SpindleNumber
Atwo(2)digitcoderepresentingthespindlenumberusedforthetestmustbeselected.SeeAppendix
Aformoreinformationregardingspindlesforusewith the DV3TRheometer.Selectionofthe
appropriatespindlecodeisimportanttoensurecorrectstresscalculations.Brookeldrecommends
theuseofvanespindlesforyieldmeasurements.
ImmersionMark
Eachvanespindlehastwo(2)immersionmarks.Theprimaryimmersionmarkislocatedonthe
spindleshaft.Normally,thespindleshouldbeinsertedsothatthesamplereachesthismark.If
thesamplecontaineristoosmalltoallowthespindletobeinsertedtothismark,thesecondary
immersionmarkmaybeused.Thismarkappearshalfwaydownthebladesofthevanespindles.
SeeAppendixDformoreinformationregardingspindlesandimmersionmarks.
Primary
Immersion
Mark
Secondary
Immersion
Mark
Figure IV-5
Note: Selectionoftheappropriate
immersionmarkisimportant
to ensure correct stress
calculations.