Inhaltsverzeichnis - Mettler Toledo InPro 6850i Bedienungsanleitung

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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 (not for InPro 6950i).................................8
2.6 Ex-classification ATEX (not for InPro 6950i) ........................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 Product description........................................................12
3.1 General information.........................................................12
3.2 Principle ........................................................................12
3.3 Scope of delivery ............................................................13
3.4 Equipment features .........................................................14
4 Installation....................................................................15
4.1 Mounting the sensor........................................................15
4.2 Connection.....................................................................15
4.2.1 Connecting the sensor to a AK9 cable ...............................15
4.2.2 Connecting the 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 ......................................................19
6 Maintenance .................................................................20
6.1 Inspection of the sensor...................................................20
6.1.1 Visual inspection ............................................................20
6.1.2 Testing the METTLER TOLEDO O
6.1.3 Testing the sensor via a transmitter ...................................22
6.1.4 ISM design.....................................................................23
6.2 Changing the electrolyte, the membrane body
or the interior body..........................................................23
7 Storage .........................................................................27
8 Product specification .....................................................28
8.1 Certificates .....................................................................28
8.2 Specifications .................................................................29
9 Ordering information......................................................30
9.1 Sensors with ISM functionality ..........................................30
9.2 Accessories....................................................................30
9.3 Spare parts ....................................................................31
9.4 Recommended transmitters..............................................31
9.5 Recommended housings .................................................32
10 Theory of the polarographic sensor .................................32
10.1 Introduction....................................................................32
10.2 Principle of the design of an oxygen electrode ....................33
10.3 Parameters determining current ........................................36
10.5 Temperature ...................................................................37
10.6 Dependence on flow........................................................37
10.7 Oxygen partial pressure - oxygen concentration .................38
InPro 6850i, 6900i, 6950i
52 206 349
InPro 6850i / 6900i / 6950i O Sensor 12 / 25 mm
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sensor master .................21
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© 02 / 09 Mettler-Toledo AG
Printed in Switzerland