Hanna-instruments HI 901 Manuel d'utilisateur Page 51
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Noté. / 5. Basé sur avis des utilisateurs
5-11
METHODS
The allowed ranges for dosing volume are:
0.001 to 4.500 mL for a 5 mL burette
0.001 to 9.000 mL for a 10 mL burette
0.005 to 22.500 mL for a 25 mL burette
0.005 to 45.000 mL for a 50 mL burette
5.5.3.2 Dynamic Dosing
The titrant is added in volumes that depends on the proximity of the end point as shown in
the graph below.
The titrator determines the titrant dose by trying to maintain a certain potential change (delta E)
with each addition.
If the potential jump, after the titrant dose, is lower than the set delta E, the next dose
volume is progressively increased until max Vol is attained. If the potential jump is still lower,
the titration will continue with the max Vol doses.
If the potential jump, after the titrant dose, is higher than the set delta E, the next dose
volume is progressively decreased until min Vol is attained. If the potential jump is still
higher, the titration will continue with the min Vol doses.
- INSTRUCTION MANUAL 1
- HI 901 / HI 902 1
- AUTOMATIC TITRATOR 1
- TABLE OF CONTENTS 3
- Dear customer 4
- INTRODUCTION 5
- Chapter 2. Contents 7
- 2.1 Unpacking 9
- 2.2 Safety Measures 10
- 2.3 Installation 11
- 2.3.4 Titrator Assembly 12
- 2.3.4.2 Attaching Stirrer 13
- 2.3.4.5 Attaching Burette 15
- 2.3.5 Connection to Earth 17
- 2.3.6 Floppy Disk Drive 17
- USER INTERFACE 19
- GENERAL OPTIONS 27
- Chapter 5. Contents 41
- 5 METHODS 43
- 5.2 Standard Methods 44
- 5.3 User Methods 45
- 5.3.1 Creating User Methods 46
- 5.3.2 Deleting User Methods 46
- 5.4 View / Modify Method 47
- 5.4 Method Options 48
- 5.5.3 Dosing Type 49
- Linear Dosing 50
- 5.5.4 End Point Mode 53
- 5.5.5 Pre-Titration Volume 60
- 5.5.6 Pre-Titration Stir Time 61
- 5.5.7 Measurement Mode 62
- 5.5.8 Electrode Type 65
- 5.5.9 Blank Option 65
- 5.5.11 Calculations 67
- Sample Calculations by Weight 74
- ⇐ Select the titrant 2 unit 77
- 5.5.12 Dilution Option 79
- 5.5.13 Titrant Name 80
- 5.5.14 Titrant Concentration 80
- 5.5.15 Analyte Size 80
- 5.5.16 Analyte Entry 80
- 5.5.18 Maximum Titrant Volume 82
- 5.5.19 Stirring Speed 82
- 5.5.20 Potential Range 83
- 5.5.21 Volume/Flow Rate 83
- 5.6 Printing 84
- TITRATION MODE 85
- Chapter 7. Contents 91
- 7 pH & mV MODE 93
- 7.1.2 pH Menu 94
- 7.2 mV Mode 96
- 7.2.2 mV Menu 97
- 7.3 Logging 98
- 7.3.1 Automatic Logging 99
- 7.3.2 Manual Logging 99
- AUXILIARY FUNCTIONS 101
- MAINTENANCE, PERIPHERALS 111
- APPENDIX 1 123
- APPENDIX 2 127
- APPENDIX 3 133
- APPENDIX 4 139
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