Hanna-instruments HI 904 Manuel d'utilisateur télécharger pdf (Page 74)

5-16

METHODS

5.5.10 Control Parameters

The user can access and edit the parameters related to the titration.

5.5.10.1 Titration Speed

Choose the desired titration speed for the method. Some samples or reagents may produce

very abrupt endpoints, requiring slower titration speeds in order to avoid over-titration.

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 179 180

QUICK START GUIDE 1
KARL FISCHER 1
COULOMETRIC TITRATOR 1
INSTRUCTION MANUAL 17
Dear customer 18
Hanna Instruments 18
TABLE OF CONTENTS 19
INTRODUCTION 21
Chapter 2. Contents 23
2.1 Unpacking 25
2.2 Safety Measures 26
2.3 Installation 27
2.3.2 Titrator Rear View 28
2.3.3 Titrator Left-side View 28
2.3.4 Titrator Assembly 29
2.3.4.3 Titration Vessel 31
Caution: 35
USER INTERFACE 37
3.2.1 Keypad 40
3.2.2 Display 41
Idle Screen 42
Process Screen 43
GENERAL OPTIONS 47
Chapter 4. Contents 47
4 GENERAL OPTIONS 49
General Options 49
“External” stirrer option 51
Balance Configuration 56
Chapter 5. Contents 59
5 METHODS 61
5.2 Standard Methods 62
5.3 User Methods 63
5.4 View / Modify Method 64
5.5 Method Options 65
5.5.2 Method Revision 66
5.5.3 Method Type 66
5.5.4 Pre-Analysis Stir Time 67
5.5.5 Stirring Speed 67
5.5.6 Stirbar Type 68
5.5.7 Drift Entry 68
5.5.8 Reagent 69
5.5.9 Sample Parameters 70
Normal Determination 71
4.11, Setup Balance Interface 72
Sample Type: Volume 72
External Extraction 73
External Dissolution 73
5.5.10 Control Parameters 74
Standby Duration 75
Fixed (400 mA): 77
1 Reading 77
5.5.11 Termination Parameters 78
5.5.11.4, End Point 79
Stability Time) 79
Absolute Drift 79
Relative Drift 79
5.6 Printing 80
5.7 Bromine Index 81
TITRATION 83
AUXILIARY FUNCTIONS 100
MAINTENANCE, PERIPHERALS 103
METHODS OPTIMIZATION 113
APPENDIX 3 125
MAN HI904 126
09/13 126
APPENDIX 1 127
APPENDIX 2 131
GENERAL APPLICATIONS BROCHURE 141
Method ID: HI9001EN 143
Method ID: HI9301EN 145
Method ID: HI9901EN 147
TITRATION THEORY 149
Revision 1.0 149
2.1.1 Amperometric Titrations 155
2.2.1 Karl Fischer Titrations 157
) = 9.336 · 10 158
2.2.2 Acid-Base Titrations 161
2.2.8 Redox Titrations 164
2.3.1 Back Titrations 165
4.3.1 Sampling Errors 169
By Volume 174
5.2.3 Blank Titration 174
5.2.5 Back Titration 175

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Hanna-instruments HI 904 Manuel d'utilisateur Page 74

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