Optional Display And Pushbuttons; Svi Ii Esd Maintenance; Repair And Replacement - GE Masoneilan SVI II ESD Installation And Maintenance Manual

Smart valve interface with sil3 emergency shutdown pst controller

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Optional Display and Pushbuttons

The optional display and buttons are mounted on SVI II ESD cover plate. Three pushbutton

switches operating in conjunction with the display permit reading and modification of

instrument operating parameters without a PC or HART

switches perform generic functions - Increase, Decrease, and Accept - by movement through

a conventional menu structure. Switches are operated in a hazardous environment without

compromising the flameproof enclosure.

Repairs can be made only by factory authorized personnel trained to repair Safety Devices.

A conservative approach is taken in estimating the service interval for the digital valve

controller in Safety Instrumented Systems. For SIS applications, preventive

maintenance should be performed on the SVI II ESD five years from date of shipment if

the average daily ambient temperature is below 60° C (140° F). For applications where

ambient temperature exceeds 60° C (140° F) for extended periods, reduce this

maintenance interval based on plant experience.

SVI II ESD preventive maintenance consists of replacing gaskets, O-rings in the device

and a visual inspection of moving components to verify satisfactory condition.

Following maintenance, the SVI II ESD must be reinstalled on the valve actuator and

calibrated per the procedures in this manual. After calibration, The SVI II ESD functional

safety must be validated. All maintenance procedures must be performed only by

factory authorized personnel trained to repair Safety Devices.

Should alarms or alerts be detected during operation, maintenance or periodic

inspection and test, immediately take corrective action according to the

troubleshooting and repair procedure.

When working on safety rated equipment appropriate risk

WARNING

reduction safety measures should be in place.

handheld communicator. These

Masoneilan SVI II ESD Installation and Maintenance Manual

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