Inhaltsverzeichnis - Mettler Toledo InPro 6950 Serie 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 Environmental protection ..............................................9
2.5 Examples of some typical applications ...........................9
2.6 Use in Ex-zones ..........................................................9
2.7 Ex-classification ATEX ................................................10
2.7.1 Introduction ...............................................................10
2.7.2 Rated data ................................................................10
2.7.3 Special conditions .....................................................11
2.8 Ex-classification - FM approved ..................................12
2.8.1 Introduction ...............................................................12
2.8.2 Rated data ...............................................................13
2.8.3 Special conditions .....................................................13
2.8.4 Applied standards: .....................................................14
3 Product description ...................................................15
3.1 General information ...................................................15
3.2 Principle ...................................................................15
3.3 Scope of delivery .......................................................16
3.4 Equipment features ....................................................17
4 Installation ...............................................................18
4.1 Mounting the sensor ..................................................18
4.2 Connection ...............................................................19
4.2.1 Connecting the InPro 6950 to a VP cable .....................19
4.2.2 Connecting the VP cable to the transmitter ....................19
5 Operation .................................................................20
5.1 Start-up and polarizing ...............................................20
5.2 Calibration ................................................................21
5.2.1 Purpose of calibration ................................................21
5.2.2 What you have to know for calibration .........................21
5.2.3 Single point calibration ...............................................22
5.2.4 Dual point calibration .................................................22
6 Maintenance ............................................................23
6.1 Inspection of the sensor ..............................................23
6.1.1 Visual inspection .......................................................23
6.1.2 Testing the METTLER TOLEDO
O sensor master InPro 6950 .....................................24
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6.1.3 Testing the sensor via a transmitter ..............................25
6.2 Changing the electrolyte,
the membrane body or the interior body .......................26
7 Storage ....................................................................29
8 Product specification ................................................30
8.1 Certificates ................................................................30
8.2 Specifications ............................................................31
9 Ordering information ................................................32
9.1 Sensors ....................................................................32
9.2 Accessories ...............................................................32
9.3 Spare parts ...............................................................32
9.4 Recommended transmitters .........................................33
9.5 Recommended housings ............................................33
10 Theory of the polarographic sensor ............................34
10.1 Introduction ...............................................................34
10.2 Principle of the design of an oxygen electrode ...............35
10.3 Parameters determining current ...................................36
10.4 Polarization voltage ...................................................37
10.5 Temperature ..............................................................37
10.6 Dependence on flow ..................................................37
10.7 Oxygen partial pressure -
oxygen concentration .................................................38
InPro 6950
52 206 137 F
InPro 6950 Series O
© 02 / 2023 METTLER TOLEDO
Sensor 12 mm
2
Printed in Switzerland