Masoneilan SVI II ESD, Installation And Maintenance Manual

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© 2017 Baker Hughes, a GE company, LLC. All rights reserved.
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BHGE
SVI II ESD Maintenance
Repair and Replacement
Repairs may be made only by the factory authorized personnel trained to repair Safety
Devices.
CAUTION
When working on safety rated equipment appropriate risk
reduction safety measures must be in place.
1. A conservative approach is taken in estimating the service interval for the digital valve
controller in Safety Instrumented Systems. For SIS applications, perform preventive
maintenance on the SVI II ESD after five years from the shipment date, if the average daily
ambient 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 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. After calibration, validate the SVI II ESD functional safety. All maintenance
procedures must be performed only by the factory authorized personnel trained to repair
Safety Devices.
3. If alarms or alerts are detected during operation, maintenance or periodic inspection and
test, immediately take corrective action according to the troubleshooting and repair
procedures given in the Instruction Manual.
Factory Notification
Report any failures detected that compromise functional safety to the factory. Contact your
local the factory service representative. Sales Office locations are listed on the back cover of
this document.
NOTE
BHGE does not assume responsibility for the selection, use, or
maintenance of any product. Responsibility for proper selection,
use of any BHGE product remains solely with the purchaser and
end-user. The SVI II ESD requires recertification, which must be
performed by factory authorized personnel trained to repair
Safety Devices.
The contents of this publication are presented for informational purposes only, and while
every effort has been made to ensure their accuracy, they are not to be construed as
warranties or guarantees, express or implied, regarding the products or services described
herein or their use or applicability. We reserve the right to modify or improve the designs or
specifications of such products at any time without notice.