ABB AV2 User Manual

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Table of Contents (continued)
Page
SECTION 5 - OPERATING PROCEDURES................................................................................5-1
INTRODUCTION.............................................................................................................................5-1
EQUALIZING AND AIR SUPPLY SHUTOFF VALVE......................................................................5-1
Transfer from Automatic to Manual Operation .........................................................................5-1
Transfer from Manual to Automatic Operation .........................................................................5-1
SECTION 6 - TROUBLESHOOTING...........................................................................................6-1
INTRODUCTION.............................................................................................................................6-1
SECTION 7 - MAINTENANCE.....................................................................................................7-1
INTRODUCTION.............................................................................................................................7-1
PREVENTIVE MAINTENANCE SCHEDULE ..................................................................................7-1
PREVENTIVE MAINTENANCE PROCEDURES ............................................................................7-2
MANIFOLD FILTERS ......................................................................................................................7-2
SECTION 8 - REPAIR AND REPLACEMENT.............................................................................8-1
INTRODUCTION.............................................................................................................................8-1
REPLACEMENT PROCEDURES ...................................................................................................8-1
Manifold....................................................................................................................................8-1
Gain Hinge Spring....................................................................................................................8-2
Pilot Valve Assembly................................................................................................................8-3
I/P Converter ............................................................................................................................8-4
Cam..........................................................................................................................................8-5
Diaphragm Assembly ...............................................................................................................8-5
DIAPHRAGM ASSEMBLY REMOVAL..............................................................................8-6
DIAPHRAGM ASSEMBLY REPLACEMENT....................................................................8-6
PILOT VALVE STROKE ADJUSTMENT.........................................................................................8-7
SECTION 9 - SUPPORT SERVICES...........................................................................................9-1
INTRODUCTION.............................................................................................................................9-1
RECOMMENDED SPARE PARTS..................................................................................................9-1
ADDITIONAL SPARE PARTS.........................................................................................................9-3
APPENDIX A - POSITION TRANSMITTERS............................................................................. A-1
INTRODUCTION............................................................................................................................ A-1
DESCRIPTION AND OPERATION ................................................................................................ A-1
CALIBRATION................................................................................................................................ A-2
Calibrating the Potentiometric Position Transmitter ................................................................ A-2
POTENTIOMETRIC APPLICATION EXAMPLE .............................................................. A-3
CALIBRATING THE POTENTIOMETRIC EXAMPLE...................................................... A-4
Calibrating the 4 to 20-mA Position Transmitter...................................................................... A-6
APPENDIX B - QUICK START................................................................................................... B-1
INTRODUCTION............................................................................................................................ B-1
PRODUCT IDENTIFICATION (NOMENCLATURE).......................................................................B-1
MOUNTING THE POSITIONER..................................................................................................... B-2
TUBING CONNECTIONS............................................................................................................... B-5
TYPE AV2 POSITIONER WIRING................................................................................................. B-8
TYPE AV1 POSITIONER WIRING............................................................................................... B-10
CALIBRATION.............................................................................................................................. B-11

ABB AV2 Specifications

General

Brand	ABB
Model	AV2
Category	Valve Positioners
Language	English