One,Principle of Measurement

DPCZ-IVDirect ChainPowder measurement instrument,Starch and iodine form a starch-iodine complex.—Starch complex

Special color reaction. Branch chain starch forms a brown-red complex with iodine. Linear starch

Powder reacts with iodine to form a deep blue complex. In the precipitate, ...

Under the condition of constant total powder amount, the two of these

Starch dispersion liquids are mixed in various proportions.

Under specific wavelengths and acidity conditions, combined with iodine.Used to generate a series of colors from purple to deep blue

Color, representing its different straight-chain and branched-chain starches

Starch content ratio, based on absorbance and direct

Starch concentration shows a linear relationship, measurement straight

Starch content.

Part One:Key Performance Indicators

1.Light Source:      Assorted setsHigh-performance halogen lampModule

2.Wavelength:      720±2 nm

3.Inspection PrecisionDegree:  ±0.5%(Quality Score:Please provide the Chinese content to be translated.

4.Transmittance ratioRepetitive:≤0.3%T

5.AbsorbanceScope: 0.000-2.000 Abs

6.Test ItemSpecies:   Rice, corn, potatoes, wheat, etc.

7.Built-in markingQuasi-operating curve

8.Samples DepartmentLead Time:60min

9.Experimental InspectionMeasure time:7S

10.Inspection ScopePerimeter:  5%-35%Or5-35g/100g(Dry basis)Quality Fraction Counter

11.Small ReadNumber:  0.01%

12.Storage Data:  10240Group record

13.Usage Environment:  Temperature0～40℃Moisture≤90%RH(40℃The time)

14.Instrument Testing Environment:15-40℃

15.Power Supply:      AC 220V /50Hz

16.Built-in microDesktop Printer

17.Accuracy 10One in ten thousand

18.Meets national standards.(GB/T15683-2008/IS06647-1:2007 )