Brookfield DV3T Rheometer Manuel d'utilisateur télécharger pdf (Page 38)

Brookeld Engineering Labs., Inc. Page 38 Manual No. M13-2100

III.10 Running a Test

AviscositytestisstartedbypressingtheRunbuttonontheCongureViscosityTestscreen.When

Runispressed,thedisplaywillchangetotheRunningViscosityTestscreen(seeFigureIII-14).

Real Time Graph

Command Keys

Status Bar

Title Bar

Test Name

Measurement Data

Figure III-14

TheRunningViscosityTestscreenprovidesinformationonthecurrentmeasurementincluding:

Torque,Viscosity,ShearStress,ShearRate,TemperatureandSpeed.

TorqueisthedeectionoftheRheometertorquesensor.Itisdescribedasapercent(%)andhas

arangeof0–100%.TheDV3Twillprovidemeasurementresultswithinthestatedaccuracy

providedtheTorquereadingisbetween10and100%.IftheTorquereadingfallsbelow10%the

labelsinthedataeldswillashtoindicateanerrorcondition.Brookelddoesnotrecommend

thatdatabecollectedbelow10%Torque;however,datacollectionisnotrestricted.

TIP: TorqueontheDV3TisequivalenttothedialreadingfromtheBrookeldDialReading

Viscometerorthe % readingfromBrookeld DigitalViscometers(DV-E, DV-I,

DV-II,DV-III).

ViscosityiscalculatedfromthemeasuredTorquebasedontheselectedspindleandspeedof

rotation.TheunitsofviscosityaredenedintheGlobalSettingssectionoftheSettingsMenu

.IftheTorquereadingfallsbelow10%,thelabelsinthedataeldswillashtoindicate

an error condition.

Shear StressiscalculatedfromthemeasuredTorquebasedontheselectedspindle.Theunitsof

shearstressaredenedintheGlobalSettingssectionoftheSettingsMenu

.IftheTorque

readingfallsbelow10%,thelabelsinthedataeldswillashtoindicateanerrorcondition.

TIP:ShearStresswillbedisplayedaszeroforspindlesthatdonothaveSRCvalues.

Shear Rateiscalculatedfromtheselectedspeedbasedontheselectedspindle.

TIP:ShearRatewillbedisplayedaszeroforspindlesthatdonothaveSRCvalues.

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Brookfield DV3T Rheometer Manuel d'utilisateur Page 38