Brookfield CT3 Texture Analyzer Manual do Utilizador descarregar pdf (Página 16)

Brookeld Engineering Labs., Inc. Page 16 Manual No. M08-372-C0113

III.6 Operating Menu

The CT3 Texture Analyzer offers seven test modes, one calibration mode and one parameter selec-

tion table.

Normal – single compression cycle.

Hold Time – compress and hold.

Cycle Count – compress sample several times.

Bloom – compression test measures gelatin bloom strength.

  TPA–twocycleTextureProleAnalysiscompressiontest.

Tension – pulls apart a sample using tensile force.

Surimi – single compression cycle, stops automatically after gel breaks.

Static Load – monitors load while hanging weights for calibration.

Global Parameter – allows setting pretest speed, post test speed and temperature units.

Each test mode requires parameters to be set. All test mode selection and parameter setting is done

usingtheSelect/Scrollknob(seegure1.2).Thisknobisbothrotatedanddepressedduringopera-

tion.

NOTE:Whensettingthetestspeed,pressingtheRESETbuttonwilltoggletheincrementsfrom

0.1mm/s to 1mm/s.

Thespecicparametersrequiredwilldependuponthetypeoftestchosen:

NormalTestRequires: trigger,deformation,speed

HoldTimeTestRequires: holdtime,trigger,deformation,speed

CycleCountTestRequires: cyclecount,trigger,deformation,speed

BloomTestRequires: Allparametersarexedaccordingtoindustrystandard

TPATestRequires: trigger,deformation,speed

TensionTestRequires: trigger,deformation,speed

SurimiTestRequires: trigger,correction,speed

StaticLoadTestRequires: none

GlobalParamters: pretestspeed,posttestspeed,temperatureunits

These parameters, once set, will be maintained by the CT3 even after power down to facilitate re-

petitive testing. The test mode used prior to powering down will be presented on the screen at the

next power up. A test is started by depressing the start button.

Thetestparametersaredenedasfollows:

Trigger: The load, in grams, measured by the CT3 to indicate that the probe is in contact

withthesample.Oncethetriggervalueisreached,thetestwillbeginatthedened

speed.BrookeldrecommendstriggervaluesasspeciedinTableII.1Setting

trigger value to zero disables trigger function so test will immediately start

from current position.

Deformation: The total downward distance the probe will travel once the trigger value is

reached.

Speed: Thespeedatwhichtheprobewilltravelthespecieddistance.

Time: Thenumberofsecondsthattheprobewillbeheldatthedeneddistanceduring

a Hold Time test.

Count: The number of cycles (Speed and Distance) that will be applied to the sample

during a Cycle Count test.

Correction: Speciesthesizeoftheloaddrop,ingrams,thatisrequiredtorecognizeagel

rupture.

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