MRC NIR-CS-3000BT Manual de usuario

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NIR-CS-3000BT

WHOLE GRAIN ANALYSER With Test

Weight Module

User’s Guide

Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529 ,3

[email protected]

MRC. 1.23

Operations Manual

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Table of Contents

NIR Technology Systems

Table of Contents

Overview 2

Installed Calibrations.............................................................................................................. 3

NIR-CS-3000BT Software 4

Operation................................................................................................................................ 4

Start 7

Settings 14

Maintenance 27

Opening the NIR-CS-3000BT WHOLE GRAIN ANALYSER ...................................................... 27

Changing Lamp..................................................................................................................... 27

Changing External Fuse ........................................................................................................ 27

Dusting Optics ...................................................................................................................... 27

Sample Handling 28

Sample preparation procedure............................................................................................. 28

Temperature dependence .................................................................................................... 28

Trouble Shooting 29

Warranty 33

Disclaimer 33

Calibration of NIR Instruments 34

Validation Worksheet 41

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NIR-CS-3000BT

Whole Grain Analyser

Overview

This chapter provides an overview of the NIR-CS-3000BT WHOLE GRAIN ANALYSER’s features, .

the touch screen display and a description of the operation

The NIR-CS-3000BT has been developed as an instrument to measure protein, moisture, fat/oil,

sugar and alcohol content of foods. The NIR-CS-3000BT has been developed in Australia for use .

by food manufacturers and organisations that need to analyse food and food ingredients

The NIR-CS-3000BT is a full spectrum NIR Transmission Spectrophotometer. The NIR-CS-3000BT

uses a linear diode array detector and a spectrograph to provide the NIR transmittance spectrum

from 720 –1100 nm. Within this region of the electromagnetic spectrum compounds such as

protein, moisture, oil, alcohol and carbohydrates absorb infrared energy. By measuring the

intensity of the near infrared energy that passes through a cell filled with grains or oil

seeds, .each of the components can be measured

The NIR-CS-3000BT has been designed to provide the following features:

•Prediction of Protein, Moisture, Oil and Starch in cereal grains, oil seeds and pulses

•Direct calculation of Test Weight, Screenings and Retention

•Built-in PC with Touch Screen

•Customised Analysis Records

•Direct Load Ticket Print

•Automated Pathlength Adjustment

•Outlier Detection Methods

•Average of up to 30 scans

Installed Calibrations

The NIR-CS-3000BT Whole Grain Analyser is supplied with calibration models for wheat, barley

and canola. Other grains including oats, sorghum, rice, corn; pulses including chick peas, field

peas, faba beans, lupins, mung beans, lentils and oil seeds including soybeans, linseeds, safflour

seeds, can be installed

Calibrations for company specific products can be developed by the user on a separate PC to the

analyser. Calibrations for other products can be developed using our NTAS(Near Infrared

Technology Analysis) software which is an optional item with the NIR-CS-3000BT Whole Grain

Analyser.

Operations Manual

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The NIR-CS-3000BT comes ready to use, with all internal software installed and standard

calibrations saved into the Calibration folder. This internal software provides a means of predicting

protein, oil and moisture in the standard grains

Description

The NIR-CS-3000BT is provided with the following equipment

NIR-CS-3000BT NIR Spectrophotometer

Instruction Manual

VAC to 19 volt DC transformer 240

Spare lamp and fuse

Touch Screen Pen

USB Memory Device, 8GByte

Brush

Accessories available as options:

•Sievematic II Test Weight and Screenings Analyser

•Computer Screen

•Keyboard and Mouse

•NTAS Software

•CropNet Grain Data Management Software

Figure 1 provides a schematic of the optical and electronic layout of the analyser.

Figure 1 –Schematic of the NIR-CS-3000BT Whole Grain Analyser

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NIR-CS-3000BT

Whole Grain Analyser

Light from a tungsten halogen lamp is shone through a sample chamber, onto focusing optics and

into a flat field spectrograph with a silicon photodiode array detector. The spectrograph disperses

the light into the NIR spectra from 720-1100nm. Chemical bonds within grains and oil seeds absorb

NIR light at specific wavelengths of light. Protein(N-H)absorbs at 1020nm, moisture at 970nm and

oil at 905nm. The amount of light absorbed by the sample at these wavelengths are proportional .

to the concentration of each componen

To measure the amount of light absorbed by the sample, two components are measured. The

amount of light passing through the optics is measured by the detector and stored in the internal

computer’s memory. This is referred to as the “100% reference” reading. A sample of grain is

loaded into the sample chamber. Flaps at the base and top of the chamber allows grain to flow

through the chamber. Up to 10 spectra can be collected and stored. The amount of light passing

through the sample is measured by the detector and stored into the internal computer’s

memory. .“This is referred to as the “sample scan

The amount of light absorbed by the sample is determined by the following equatio :

(Absorbance = Log(100% Reference)/Sample Scan

Protein, moisture, oil, alcohol and starch absorb NIR energy (light) at specific wavelengths of light

(wavelengths = nm), ie, protein –1020nm, moisture –970nm, oil –910nm, alcohol 905nm and

starch 820nm. The NIR spectrum of the sample, shown in figure 2, represents the amount of

light . absorbed at each wavelength, which is proportional to the concentration of each componen

The calibration models for each product are stored in the instruments memory. The computer

applies the calibration model to the NIR spectrum and calculates the protein, oil and moisture

values for the sample. A calibration model is stored in the internal computer’s memory for

each .component, eg, protein and moisture, for each product, eg, wheat, barley etcc

Figure 2. NIR Spectra of Cereal Grains and Oil Seeds

Operations Manual

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To analyse a sample, the instrument collects the NIR spectrum for the sample, and the computer

applies the calibration model and computes the % protein, % moisture, % oil etc.

Operation

Figure 3. shows the Boot Up Screen that appears on the NIR-CS-3000B/NIR-CS-3000BT PC Screen

after boot up

NIR-CS-3000BT

Whole Grain Analyse

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Figure 3 –NIR-CS-3000BT Whole Grain Analyser Initial Screen

There are three options: VIEW, START and SETTINGS

Operations Manual

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START:

Press the Start Button and the list of Products will appear.

Select a Product and the following screen will appear.

NIR-CS-3000BT

Whole Grain Analyse

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Product Description

User Details can be typed in

by clicking on any field.

These describers will be

printed on report.

Load Information that will

be printed on reports.

Prediction Data

Status

The Status message will display, “Warming Lamp Up...’. The lamp is turned on a allowed to stabilise

for 15 seconds. The message, “Collecting Reference Scan...” will then appear. Then the message

will be to “Fill Hopper and Insert Sample Tray”. Pour the grain, ie, Wheat in this case, into the

hopper and insert the Sample Tray into the bottom of the analyser.

Operations Manual

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Predicted results

Prompt for the Sample ID

Type in any Alpha/Numeric

Sample ID. Press ENTER.

Depending on the Mode

Configuration Menu setup,

the software will prompt for:

Sample ID

Test Weight

Screenings

Retention

Variety

Grade

Tonnage

Type in the values and press

ENTER.

The final results screen is then displayed.

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