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Masoneilan SVI II AP Installation and Maintenance ... - GE Energy

Masoneilan SVI II AP Installation and Maintenance ... - GE Energy

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9: Operation <strong>and</strong> <strong>Maintenance</strong> .................................................................................................. 129<br />

Principle of Operation .......................................................................................................... 129<br />

Physical <strong>and</strong> Operational Description .................................................................................. 130<br />

Electronics Module......................................................................................................... 130<br />

Output Switches............................................................................................................. 131<br />

Inductive Load................................................................................................................ 133<br />

Load Specifications........................................................................................................ 134<br />

Checking Switch Operation............................................................................................ 134<br />

Pneumatic Module ......................................................................................................... 135<br />

Optional Display <strong>and</strong> Pushbuttons ................................................................................. 138<br />

<strong>SVI</strong> <strong>II</strong> <strong>AP</strong> <strong>Maintenance</strong> <strong>and</strong> Repair ...................................................................................... 138<br />

Repair............................................................................................................................. 138<br />

Tools Needed................................................................................................................. 139<br />

Display Cover Removal <strong>and</strong> <strong>Installation</strong> ........................................................................ 139<br />

I⁄P Module Removal <strong>and</strong> <strong>Installation</strong> .............................................................................. 141<br />

Relay Removal <strong>and</strong> <strong>Installation</strong>...................................................................................... 143<br />

Adjusting I/P Zero........................................................................................................... 143<br />

Connecting Components to the Electronics Module ...................................................... 144<br />

Repair by Replacement ....................................................................................................... 144<br />

Internal Diagnostics ............................................................................................................. 144<br />

FAILSAFE Mode ........................................................................................................... 144<br />

Upgrading Firmware ............................................................................................................ 145<br />

Tools Required............................................................................................................... 145<br />

Installing Firmware Upgrade .......................................................................................... 145<br />

A: Specifications <strong>and</strong> References ............................................................................................. 147<br />

Physical <strong>and</strong> Operational Specifications.............................................................................. 147<br />

Spare Parts .......................................................................................................................... 154<br />

B: Air to Open <strong>and</strong> Air to Close Actuators ................................................................................. 159<br />

Actuator Action..................................................................................................................... 159<br />

C: Air Supply Requirements ...................................................................................................... 163<br />

Air Supply Requirements ..................................................................................................... 163<br />

D: Adjusting Speed of Response .............................................................................................. 165<br />

Adjusting Speed of Response.............................................................................................. 165<br />

E: Advanced Usage .................................................................................................................. 167<br />

Technology to Maximize Savings <strong>and</strong> Process Performance.............................................. 167<br />

Tight Shutoff Application to Protect from Seat Erosion .................................................. 167<br />

Tight Shutoff Application to High Pressure Liquid Letdown Valve Trim ......................... 167<br />

Using ValVue Diagnostics.................................................................................................... 168<br />

Continuous Diagnostics ................................................................................................. 168<br />

Monitoring a Valve Bellows Seal.................................................................................... 168<br />

Critical Service, Cavitation Control Trim ........................................................................ 168<br />

Diagnostic Valve Tests................................................................................................... 169<br />

F: Glossary ................................................................................................................................ 171<br />

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