© 2016 General Electric Company. All rights reserved.84 | =GE Oil & GasSVI II ESD MaintenanceRepair and ReplacementRepairs may be made only by the factory authorized personnel trained to repair SafetyDevices.CAUTION When working on safety rated equipment appropriate riskreduction safety measures must be in place.1. A conservative approach is taken in estimating the service interval for the digital valvecontroller in Safety Instrumented Systems. For SIS applications, perform preventivemaintenance on the SVI II ESD after five years from the shipment date, if the average dailyambient temperature is below 60°C (140°F). Where ambient temperature exceeds 60°C(140°F) for extended periods, reduce this maintenance interval based on plant experience.2. SVI II ESD preventive maintenance consists of replacing gaskets, O-rings in the device anda visual inspection of moving components to verify satisfactory condition. Followingmaintenance, the SVI II ESD must be reinstalled on the valve actuator and calibrated perthe procedures. After calibration, validate the SVI II ESD functional safety. All maintenanceprocedures must be performed only by the factory authorized personnel trained to repairSafety Devices.3. If alarms or alerts are detected during operation, maintenance or periodic inspection andtest, immediately take corrective action according to the troubleshooting and repairprocedures given in the Instruction Manual.4. The tools required for repair of the SVI II ESD are also listed in the SVI II ESD InstructionManual, EW5000-ESD.Factory NotificationReport any failures detected that compromise functional safety to the factory. Contact yourlocal the factory service representative. Sales Office locations are listed on the back cover ofthis document.NOTE GE does not assume responsibility for the selection, use, ormaintenance of any product. Responsibility for proper selection,use of any GE product remains solely with the purchaser andend-user. The SVI II ESD requires recertification, which must beperformed by factory authorized personnel trained to repairSafety Devices.
