Mettler Toledo InPro 6800 Serie Instructions D'utilisation page 4

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4 InPro 6800 Series O
Contents
1 Introduction................................................................5
2 Important notes ..........................................................6
2.1 Notes on operating instructions .....................................6
2.2 Intended use ...............................................................6
2.3 Safety instructions........................................................7
2.4 Examples of some typical applications...........................8
2.5 Use in Ex-zones...........................................................8
2.6 Ex-classification ATEX ..................................................9
2.6.1 Introduction.................................................................9
2.6.2 Rated data ..................................................................9
2.6.3 Special conditions......................................................10
2.7 Ex-classification FM approved .....................................11
3.1 General information....................................................12
3.2 Principle ...................................................................12
3.3 Scope of delivery .......................................................12
3.4 Equipment features ....................................................13
4 Installation...............................................................15
4.1 Mounting the sensor...................................................15
4.2 Connection................................................................15
4.2.1 Connecting the InPro 6800 to a cable ..........................15
4.2.2 Connecting the VP or AK9 cable to the transmitter..........16
5 Operation .................................................................17
5.1 Start-up and polarizing ...............................................17
5.2 Calibration ................................................................18
5.2.1 Purpose of calibration ................................................18
5.2.2 What you have to know for calibration .........................18
5.2.3 Single point calibration ...............................................19
5.2.4 Dual point calibration .................................................20
6 Maintenance ............................................................21
6.1 Inspection of the sensor..............................................21
6.1.1 Visual inspection .......................................................21
6.1.2 Testing the sensor with the METTLER TOLEDO O
Sensor-Master InPro 6800..........................................22
6.1.3 Testing the sensor via a transmitter ..............................23
6.2 Changing the electrolyte, the membrane body or
the interior body.........................................................24
7 Storage ....................................................................27
8 Product specification ................................................27
8.1 Certificates ................................................................27
8.2 Specifications ............................................................28
9 Ordering information.................................................29
9.1 Sensors ....................................................................29
9.2 Accessories...............................................................29
9.3 Spare parts ...............................................................30
9.4 Recommended transmitters.........................................30
9.5 Recommended housings ............................................30
10 Theory of the polarographic sensor ............................31
10.1 Introduction...............................................................31
10.2 Principle of the design of an oxygen electrode ...............32
10.3 Parameters determining current ...................................32
10.4 Polarization voltage ...................................................33
10.5 Temperature ..............................................................33
10.6 Dependence on flow...................................................34
10.7 Oxygen partial pressure – oxygen concentration ............35
InPro 6800
52 200 953
Sensor 12/25 mm
2
2
© 02 / 17 Mettler-Toledo GmbH
Printed in Switzerland