Name: Metrohm 917
Brand: Metrohm
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31.9 Arithmetic algorithms in the Coulometer

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

314

￭￭￭￭￭￭￭￭

917 Coulometer

NOTICE

The above losses of accuracy by rounding off in the range of significant

places are only relevant theoretically. Most of the time they are lower by

several orders of magnitude than – as an example – the uncertainties

resulting from weighing out the sample.

Default Chapter5
- Table of Contents5
1 Introduction15
- Instrument Description15
- Titration and Measuring Modes15
- Connectors16
- Intended Use16
- About the Documentation16
- Symbols and Conventions17
2 Safety Instructions18
- General Notes on Safety18
- Electrical Safety18
- Tubing and Capillary Connections19
- Flammable Solvents and Chemicals19
- Recycling and Disposal20
3 Overview of the Instrument21
- Front of the Instrument21
- Figure 1 Front21
- Rear of the Instrument22
- Figure 2 Rear22
4 Installation23
- Setting up the Instrument23
- Packaging23
- Checks23
- Location23
- Setting up the Titration Cell for Coulometry24
- Inserting the Titration Cell24
- Preparing the Titration Cell24
- Figure 3 Inserting the Titration Cell24
- Figure 4 Filling the Adsorber Tube25
- Figure 5 Equipping the Titration Cell26
- Mounting the Addition and Aspiration Tube28
- Figure 6 Mounting the Addition and Aspiration Tube28
- Connecting the Coulometer to the Power Supply29
- Figure 7 Connecting the Power Supply Unit29
- Connecting Sensors30
- Connecting Generator Electrodes30
- Figure 8 Unscrewing the Protective Cap from the Generator Electrode31
- Figure 9 Screwing the Electrode Cable to the Generator Electrode31
- Connecting Indicator Electrodes32
- Figure 10 Connecting a Generator Electrode32
- Figure 11 Unscrewing the Protective Cap from the Indicator Electrode32
- Figure 12 Screwing the Electrode Cable to the Indicator Electrode33
- Figure 13 Connecting an Indicator Electrode33
- Connecting a Temperature Sensor34
- Connecting MSB Devices35
- Figure 14 MSB Connections35
- Connecting a Dosing Device36
- Figure 15 MSB Connector36
- Connecting an Additional Stirrer or Titration Stand37
- Connecting a Remote Box37
- Connecting USB Devices38
- General38
- Connecting a USB Hub38
- Connecting a Printer38
- Connecting a Balance39
- Connecting a PC Keyboard40
- Connecting a Barcode Reader40
- Connecting the Coulometer to a Network41
5 Titrations42
- Coulometric Water Content Determination According to Karl Fischer (KFC)42
- Bromine Index Determination (BRC)43
6 Operation44
- Switching the Instrument on and off44
- Fundamentals of Operation45
- Touch-Sensitive Screen45
- Display Elements and Controls46
- Status Display47
- Entering Text and Numbers48
7 System Settings50
- General System Settings50
- Selecting the Dialog Language50
- Setting the Date, Time and Local Time51
- System-Specific Dialog Options52
- User Administration55
- Editing the User Configuration57
- Creating an Identification Profile60
- Defining Login Options61
- Password Options63
- Modification Options65
- Reasons65
- Audit Trail66
- Measured Value Display68
- Acoustic Signals68
8 Reagents69
- Editing Reagent Data69
- Reagent Monitoring70
9 Sensors73
- Adding a New Sensor74
- Editing the Sensor Data74
- Monitoring the Working Life75
10 Device Manager77
- Adding a New Device78
- Configuring the Instrument78
- Coulometer79
- E-Mail80
- PC/LIMS Report81
- Shared Memory82
- TCP/IP Settings84
- Metrohm Control Instruments85
- Properties - Measuring Input86
- Properties - MSB Connector87
- Properties - Peripheral Devices88
- Printer88
- PDF Settings90
- Network Printer91
- More Options92
- Balance93
- USB/RS-232 Adapter94
- PC Keyboard96
- Barcode Reader98
11 File Manager100
- Managing Files100
- Copying a File102
- Renaming a File102
- File Properties103
- External Storage Medium104
- Figure 16 Directory Structure on the External Storage Medium105
- Creating Backups / Restoring Data106
- Restoring Data106
12 GLP Manager108
- Automatic System Test109
- Test Tools109
- GLP Tests for Measurement and Titration110
- Parameter Description111
- System Validation114
- Parameter Description115
- System Monitoring118
- Service Interval118
- Backup Interval118
13 Common Variables120
- Editing Common Variables121
- Properties of Common Variables122
- Monitoring Validity123
- Assigning a Result Automatically to a Common Varia- Ble124
14 Templates126
- Sample Data126
- Sample Identification List127
- Sample Assignment Table128
- Custom Result Templates130
- Editing Result Templates131
- Input Lines134
- Editing the Input Signal135
- Output Lines136
- Editing the Output Signal138
- Report Header139
15 Methods141
- Creating a New Method141
- Saving a Method142
- Loading a Method143
- Editing a Method144
- Inserting a Command145
- Method Options146
- Start Options147
- Stop Options148
- Sample Data149
- Method Properties152
- Note154
- Saving a Determination Automatically154
16 Electronic Signatures157
- Signing Methods/Determinations Electronically157
- Deleting Electronic Signatures158
17 Control159
18 Favorites163
- Creating Favorites164
- Editing Favorites164
19 Sample Data167
- Entering Sample Data in the Main Dialog167
- Requesting Sample Data at the Start of the Determination168
20 Sample Table170
- General170
- Editing Sample Data173
- Properties175
21 Determination Run178
- Carrying out a Single KFC Determination178
- Performing a Sample Series179
- Canceling Determinations Manually180
22 Live Modifications181
- Editing the Sample Data of the Running Determination181
- Editing the Sample Table While a Determination Is Running182
- Live Display183
- Live Parameters184
23 Results and more Determination Data186
- More Determination Data187
- Details188
- Messages190
- Local Common Variables190
- Determination Properties191
- Loading a Determination193
- Determination List194
- Saving a Determination198
- Curves199
- Recalculation and Reevaluation201
24 Statistics202
- Displaying Details for a Result204
- Deleting Statistical Data205
- Adding a Determination to a Determination Series205
25 Result Table207
- Properties208
- Saving the Result Table212
- Loading the Result Table212
26 Printing213
- General Report Options215
- Settings of the Individual Reports216
- List of All Printable Reports217
27 Manual Control221
- Opening and Closing the Manual Control222
- Measuring223
- Parameter Description224
- Dosing225
- Continuous Dosing226
- Dosing Fixed Volumes228
- Preparing229
- Emptying230
- Filling230
- Replacing Reagent230
- Stirring231
- Remote232
28 Parameter234
- Coulometric Karl Fischer Titrations (KFC)234
- Control Parameters234
- Titration Parameters237
- Stop Conditions237
- Conditioning238
- Cell240
- Sensor241
- Stirrer242
- Bromine Index Determination (BRC)243
- Control Parameters243
- Titration Parameters246
- Stop Conditions247
- Conditioning247
- Cell249
- Sensor250
- Stirrer251
- Measurements (MEAS)252
- Measuring Parameters252
- Sensor254
- Stirrer256
- Evaluations (EVAL)257
- Fixed Endpoint Evaluation (EVAL FIX-EP)258
- Minimum and Maximum Evaluation (EVAL MIN/MAX)259
- Figure 17 Evaluation of Minimum and Maximum259
- Rate Evaluation (EVAL RATE)260
- Calculations261
- Calculations (CALC)261
- Calculations (CALC LIVE)267
- Formula Editor269
- Reports (REPORT)275
- General Report Options276
- Settings of the Individual Reports277
- List of Reports278
- Dosing and Liquid Handling280
- Preparing an Exchange or Dosing Unit (PREP)280
- Emptying a Dosing Unit (EMPTY)281
- Dosing a Specified Volume (ADD)282
- Liquid Handling (LQH)287
- Communication290
- Scanning Remote Lines (SCAN)290
- Setting Remote Lines (CTRL)291
- Scanning the RS-232 Interface (SCAN RS)293
- Defining RS-232 Commands (CONTROL RS)294
- Automation294
- Creating a Subsequence (SUBSEQ)294
- Miscellaneous Commands297
- Controlling a Stirrer (STIR)297
- Pausing the Method Run (WAIT)298
- Scan Data (REQUEST)299
- Defining an Acoustic Signal (BEEP)300
- Signing a Determination (SIGN)300
- Canceling the Method Run (END)300
29 Operation and Maintenance301
- System Initialization301
- Maintenance302
30 Troubleshooting303
- Editing Methods303
- Sample Table303
- Results/Statistics303
- Printing304
- Manual Control304
- Titration Stand with Pump305
- Coulometric Karl Fischer Titration305
31 Appendix308
- Dosing Unit308
- Maximum Dosing and Filling Rate308
- Default Parameters for Preparing (PREP) and Emptying (EMPTY)308
- Exchange Unit309
- Maximum Dosing and Filling Rate309
- Default Parameters for Preparing (PREP)309
- Stirring Rate309
- Balance310
- Figure 18 Rotational Speed Depending on the Stirring Rate310
- Remote Interface311
- Pin Assignment of the Remote Interface311
- Figure 19 Connectors of the Remote Box311
- Figure 20 Pin Assignment of Remote Socket and Plug311
- Result Variables as Parameter Setting314
- Using Audittrailviewer315
- Installing Audittrailviewer315
- Opening the Audit Trail316
- Contents of the Audit Trail317
- Filtering the Audit Trail318
- Exporting the Audit Trail319
- Diagnosis319
- LCD Test320
- Formatting an External Storage Medium320
- Removing an External Storage Medium321
- Adjusting the Touch Screen321
- Testing the Touch Screen322
- Software Update323
- Files)323
- Service326
- Arithmetic Algorithms in the Coulometer326
32 Technical Specifications329
- Touch Screen329
- Measuring Inputs330
- Generator Electrode330
- Indicator Electrode330
- Temperature Sensor330
- Determination Range331
- Resolution331
- Reproducibility331
- Internal Stirrer331
- Pump331
- Interfaces and Connectors332
- Power Supply332
- Declarations of Conformity332
- Ambient Temperature333
- Reference Conditions333
- Dimensions333
33 Accessories334
Index335

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Brand	Metrohm
Model	917
Category	Laboratory Equipment
Language	English