Content
1
Preface ............................................................................................................................ 3
1.1
Safety Guidelines ................................................................................................... 4
2
Description of the pH-10 mini Device........................................................................... 6
2.1
Instrument............................................................................................................... 6
2.2
Front Panel of the pH-10 mini Device................................................................... 6
2.3
Rear Panel of the pH-10 mini Device .................................................................... 7
2.4
Required Basic Equipment.................................................................................... 8
3
pH-Sensitive Minisensors ............................................................................................. 9
3.1
General Description ............................................................................................... 9
3.2
Dynamic range........................................................................................................ 9
3.3
Characteristics of a typical pH sensor ............................................................... 10
3.4
Cross sensitivities................................................................................................ 10
3.5
Sensor drift ........................................................................................................... 11
3.6
Temperature dependency.................................................................................... 11
3.7
Limitations of optical pH sensors....................................................................... 12
3.8
Response time...................................................................................................... 12
3.9
Housings of pH-Sensitive Minisensors.............................................................. 12
3.9.1
Planar Analyte-Sensitive Foils........................................................................ 13
3.9.2
Flow-Through Cell - pH Minisensor ................................................................ 14
4
Software ........................................................................................................................ 16
4.1
Software Installation ............................................................................................ 16
4.2
Starting pH-10 mini and its Software.................................................................. 18
4.3
Function and Description of the pH-10 mini Software...................................... 19
4.3.1
Menu Bar: ....................................................................................................... 19
4.3.2
Status Bar....................................................................................................... 20
4.3.3
Control section ............................................................................................... 20
4.3.4
Channel selection ........................................................................................... 23
4.3.5
Data Handling................................................................................................. 24
5
Mounting sensors ........................................................................................................ 24
5.1
Mounting planar sensor spots ............................................................................ 24
5.2
Mounting flow through cells ............................................................................... 24
5.3
Measurement of a pH Minisensors ..................................................................... 25
6
Calibration .................................................................................................................... 26
6.1
Calibration............................................................................................................. 26
6.2
Re calibration........................................................................................................ 26
6.2.1
Determination of calibration constants ........................................................... 27