Brookfield DV2T Viscometer Manuel d'utilisateur Page 48

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Brookeld Engineering Labs., Inc. Page 48 Manual No. M13-167-B0614
ASpecialSpindleiscreatedbyselectingtheSpecialSpindlecommandbutton
intheEditSpindleListmenu.ASpecialSpindlerequiresacode,aname,
andanSMCvalue.OptionalvaluesincludeSRCandYMC.
Code Thecodeisthenumericalvalueusedtoselectthespindle.This
valuemustbeuniqueandcannotbethesameasastandard
Brookeldspindle.TheacceptablerangeforCodeis100-199.
Name TheNameisauniquevaluetodescribethespindle.TheName
willbedisplayedintheSpindleeld.TheNamecanbecomprised
ofalphaandnumericcharacters.
SMC The SMC (Spindle Multiplier Constant) is used to convert the
measuredtorquetoviscosity.TheacceptablerangeofSMCis
0.001–500.
TheSMCvaluecanbedeterminedthroughtheuseoftheRange
equationfoundinappendix D.Someexperimentationwiththe
spindleandacalibratedviscositystandardisrequired.
Range(cP)=TK*SMC*10,000/RPM
TheTorqueConstant(TK)canbefoundinTableD-2inAppendixD.
SRC TheSRC(ShearRateConstant)isusedtoconvertthesetRPM
toshearrateandcalculateShearStress.Theacceptablerange
ofSRCis0.001–500.
TheSRCvaluecanbedeterminediftheshearratecharacteristicsof
thespindlegeometryareknown.ConsulttheBrookeldpublication,
“MoreSolutionstoStickyProblems”,foradiscussionaboutshear
rateandsomerecommendedequations.
ShearRate(1/s)=SRC*RPM
YMC TheYMC(YieldMultiplierConstant)isusedtoconvertthemeasured
torquetoyieldstress.
This feature is only available with the DV3T Rheometer. Consult
the DV3T operating instructions for more information.
Speed List:TheselectionofSpeedinCongureViscosityTestcanbedonebyusingeither
anumberpadorascrolllist.(Thischoiceisselectedthroughthenavigation
buttonintheSetSpindle screen.)Whenscrolllistisselected, thespeed
entryisrestrictedtotheclassicBrookeldspeedsetsfortheLVandRV/HA/
HBviscometers.ThecontentsofthescrolllistaredenedintheSpeedList
menu.Eachspeedcanbeindividuallyselectedordeselectedthroughtheuse
ofacheckbox.SelectordeselectallspeedsbyusingtheSelectAllcheck
box.SelectordeselectallLV(orRV/HA/HB)speedsbyusingtheSelectAll
LVcheckbox.TheclassicBrookeldspeedsetsaredenedbelow.
LV: 0.3,0.6,1.5,3,6,12,30,60
RV/HA/HB: 0.5,1.0,2.0,2.5,4,5,10,20,50,100
Additionally,anewspeedcanbeaddedtothelistbyselectingtheNewSpeed
commandkeyatthebottomofthedisplay.TheNewSpeedmustbeselected
withintherangeofavailablespeedsontheDV2T:0.0–200RPM.
Speedentrythroughthenumberpadisneverrestricted.
TIP: Toensurethatthecorrectspeedisalwaysentered,createatestthat
issavedtotheDV2Tmemory.
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Commentaires sur ces manuels

Sachin Vaijanath Ashture 05 Mar 2025 | 15:48:33

It's good information