Brookfield CT3 Texture Analyzer Uživatelský manuál stáhnout pdf (Strana 25)

Brookeld Engineering Labs., Inc. Page 25 Manual No. M08-372-C0113

withthesample.Oncetheprobecontactsthesamplethetestwillbeginatthedenedspeed.The

range of acceptable trigger values depends upon the load cell in use and is shown in Table III.1.

In general, the trigger value should be large enough to prevent a false trigger from starting the test

before the probe comes in contact with the sample. A false trigger is usually the result of excessive

vibrations passing through the lab bench. A 5g trigger is typical.

When the surimi sample ruptures, the load measured by the CT3 will drop. The Correction value

speciesthesizeoftheloaddrop,ingrams,thatisrequiredtorecognizeagelrupture.Thecorrection

value may be set from 5g to 99g. The two most common correction values used are 30g or 50g.

The default setting is 30g and should be good for most surimi applications.

The test speed for all surimi testing has historically been 1 cm/s, so this is the default value. The

test speed can be set from 0.1 mm/s to 10 mm/s, which is equivalent to 1 cm/s.

Changing the test speed is likely to change the gel result.

During the test the display will show live deformation and load.

TEST: SURIMI

DEFORMATION: XX.XX cm

LOAD: XXXX.X g

III.28

As soon as the surimi gel ruptures, the result screen will appear.

PEAK LOAD: 465.0 g

DEF@PEAK: 0.81 cm

GEL: 376.65 g *cm

TEMP: 19.8 C

III.29

The GEL result is the multiplication of Peak Load times Def@Peak in units of g-cm.

If a temperature probe is used with the CT3, the temperature at the time of the test is also shown.

The TEMP line will not be seen in the display if a temperature probe is not used. DO NOT insert

the temperature probe into the surimi sample being tested.

GLOBAL PARAMETERS - there are some parameters that affect every test screen. The speed of

the probe prior to triggering is the pretest speed, which is called Pre Speed on the display screen.

This may be set over the range of 0.1mm/s to 2.0mm/s.

ENTER GLOBAL PARAMS

PRE SPEED: 0.5MM/S

POST SPEED: 10.0MM/S

TEMP. C/F: 19.0C

III.30

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Brookfield CT3 Texture Analyzer Uživatelský manuál Strana 25