I. Principle of Measurement

DPCZ-III Direct ChainPowder moisture meter,Starch and iodine form iodine.—Starch complexes with specific color reactions. Branch starch forms a brown-red complex with iodine, while linear starch forms a deep blue complex. Under constant total starch content, mixing these starch dispersions in different ratios and reacting them with iodine at specific wavelengths and acidity levels produces a range of colors from purple-red to deep blue, indicating varying proportions of linear and branch starch. The linear relationship between absorbance and linear starch concentration allows for the determination of linear starch content.

II. Key Performance Indicators

Inspection Parameters: Starch content

Operating System: InclusiveWindowsSystem Host Computer

1.Light Source:Integrated High-Performance Halogen Lamp Module

2.Wavelength:720±2 nm

3.Detection Accuracy:±0.5%(By quality percentage)

4.Transmittance repeatability:≤0.3%T

5.Absorbance range:0.000-2.000 Abs

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

7.Built-in standard working curve

8.Sample Processing Time:60min

9.Testing and Inspection Duration:15S

10.Scope of Inspection:5%-35%Or 5-35g/100g(Dry basis quality fraction)

11.Small reading: 0.01%

12.Store Data:10240 Group Record

13.Printer:Built-in mini printer

14.Application Environment:Temperature 0~40°C;Humidity≤90%RH(40°C The time)

15.Instrumental Testing Environment:15-40°C

16.Power Supply: AC 220V /50Hz

17. Cloud Platform Dataization: Measurement results can be uploaded to the cloud platform.