METER GROUP PAWKIT, Руководство оператора

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Pawkit CONTENTS
Contents
1 Introduction 1
1.1 Customer Support . . . . . . . . . . . . . . . . . . . . 1
1.2 About This Manual . . . . . . . . . . . . . . . . . . . 1
1.3 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Seller’s Liability . . . . . . . . . . . . . . . . . . . . . . 2
2 About the Pawkit 3
2.1 Pawkit Instrument Specifications . . . . . . . . . . . . 3
2.2 How the Pawkit Works . . . . . . . . . . . . . . . . . . 4
2.3 Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Getting Started . . . . . . . . . . . . . . . . . . . . . . 4
2.4.1 Components of your Pawkit System . . . . . . 4
2.5 Preparing for Operation . . . . . . . . . . . . . . . . . 5
3 Water Activity Theory 6
3.1 Moisture Content . . . . . . . . . . . . . . . . . . . . . 6
3.2 Water Activity . . . . . . . . . . . . . . . . . . . . . . 6
3.3 Water Potential . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Sorption Isotherms . . . . . . . . . . . . . . . . . . . . 9
4 Getting Started 11
4.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Sample Preparation and Placement . . . . . . . . . . . 12
4.2.1 Sample Preparation . . . . . . . . . . . . . . . 12
4.2.2 Sample Placement . . . . . . . . . . . . . . . . 13
4.3 Taking Measurements . . . . . . . . . . . . . . . . . . 15
4.4 Turning Pawkit off . . . . . . . . . . . . . . . . . . . . 18
4.5 Sampling Precautions . . . . . . . . . . . . . . . . . . 18
4.6 Pawkit and Temperature . . . . . . . . . . . . . . . . . 19
5 Cleaning and Maintenance 20
5.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1.1 Cleaning Supplies . . . . . . . . . . . . . . . . 20
5.2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . 21
5.2.1 Sensor Filter Cleaning/Replacement . . . . . . 21
5.2.2 Thermopile Sensor Cleaning . . . . . . . . . . . 23
5.2.3 Chamber Cleaning Instructions . . . . . . . . . 23
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