Irrigation IOM
Sensors
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3.4 INSTALLATION 18
3.4.1 Important instructions on installation 18
3.4.2 Sensor support 19
3.4.3 Tightening torque 19
• Flanged sensors 19
• Wafer Sensors 20
3.4.4 Underground installations 22
3.5 HOW TO AVOID AIR POCKETS IN THE PIPELINES 23
3.6 INSTRUCTIONS FOR DIAMETER REDUCTION 27
4 POTENTIAL EQUALIZATION 28
4.1 GENERAL INDICATIONS 28
4.2 PLASTIC PIPES 29
4.3 METAL PIPES 30
4.4 METAL PIPES WITH INSULATING ADAPTERS 30
4.5 METAL AND PLASTIC PIPES 31
4.6 PIPES EQUIPPED WITH CATHODIC PROTECTION 31
5 ELECTRICAL CONNECTION 32
5.1 SEPARATE VERSION SENSOR CONNECTION 32
5.2 ELECTRICAL DIAGRAMS 33
5.2.1 Connection with standard single-shielded electrode cable 33
5.2.2 Connection with standard double-shielded electrode cable 33
5.3 SEPARATION CABLES 34
6 PRESSURE TAP 35
7 INSERTION METERS 36
7.1 INTRODUCTION 36
7.1.1 Operating principle 36
7.2 GENERAL INSTALLATION REQUIREMENTS 37
7.2.1 Care of the device 37
7.2.2 Alignment of the electrodes in relation to the flow 38
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