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TABLE OF CONTENTS
TABLE OF CONTENTS
1. PRELIMINARY EXAMINATION ............................................................................................... 5
2. SAFETY MEASURES ............................................................................................................. 5
3. SPECIFICATIONS ................................................................................................................. 6
4. ABBREVIATIONS ................................................................................................................ 7
5. DESCRIPTION ..................................................................................................................... 8
5.1. GENERAL DESCRIPTION & INTENDED USE .................................................................. 8
5.2. PRECISION & ACCURACY ............................................................................................ 8
5.3. FUNCTIONAL DESCRIPTION ........................................................................................ 9
5.4. PRINCIPLE OF OPERATION ....................................................................................... 10
5.5. OPTICAL SYSTEM ..................................................................................................... 11
6. GENERAL OPERATIONS ...................................................................................................... 12
6.1. POWER CONNECTION & BATTERY MANAGEMENT ....................................................... 12
6.2. MODE SELECTION ................................................................................................... 12
6.3. GENERAL SETUP ..................................................................................................... 13
6.4. CONTEXTUAL HELP .................................................................................................. 16
7. LOGGING DATA & DATA MANAGEMENT................................................................................ 17
7.1. LOGGING DATA ....................................................................................................... 17
7.2. ADDING SAMPLE & USER NAMES TO LOG DATA ......................................................... 17
7.3. DATA MANAGEMENT ................................................................................................ 18
8. NUTRIENT SAMPLES PREPARATION GUIDE .......................................................................... 19
8.1. INTRODUCTION TO PLANT NUTRIENTS ...................................................................... 19
8.2. PREPARING NUTRIENT SAMPLES FOR ANALYSIS ........................................................ 21
8.3. PROCEDURE FOR DILUTION FACTOR: 5 ..................................................................... 23
8.4. PROCEDURE FOR DILUTION FACTOR: 10 ................................................................... 24
8.5. PROCEDURE FOR DILUTION FACTOR: 50 ................................................................... 25
8.6. REMOVING TURBIDITY AND COLOR ........................................................................... 26
9. PHOTOMETER MODE ......................................................................................................... 27
9.1. METHOD SELECTION ............................................................................................... 27
9.2. COLLECTING & MEASURING SAMPLES AND REAGENTS ................................................ 27
9.3. CUVETTE PREPARATION ........................................................................................... 28
9.4. TIMERS & MEASUREMENT FUNCTIONS ..................................................................... 30
9.5. CHEMICAL FORMULA & UNIT CONVERSION ............................................................... 30
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