Installation And Maintenance; Introduction; Using The Quick Start Guide - Baker Hughes Masoneilan SVI II ESD Quick Start Manual

2. Installation and Maintenance

Introduction

The SVI II ESD (Emergency Shutdown Device) is our solution to improve process integrity in a pro-
cessing plant; designed to prevent and mitigate possibly uncontrollable situations.
The SVI II ESD is a PST controller that mounts on a pneumatically actuated valve assembly. Its
role is to position an emergency shutdown valve to 0% or 100% with a probability of failure on
demand (PFD) in accordance with IEC61508 for SIL3 application (SIL = Safety Integrity Level). It
replaces the solenoid that is typically utilized to actuate a spring-return, while providing exten-
sive online valve diagnostics.
Figure 1 SVI II ESD Positioner

Using the Quick Start Guide

The SVI II ESD Quick Start Guide is intended to help an experienced Field Engineer install, setup,
and calibrate an SVI II ESD in the most efficient manner possible. This document provides basic
installation and setup instructions and is not intended to replace the in-depth information con-
tained in the SVI II ESD Instruction Manual GEA18946. If you experience problems that are not
documented in this guide refer to the Masoneilan SVI II ESD Instruction Manual SIL3, GEA18946,
or call your local representative. Sales offices are listed on the last page of this document.
Masoneilan SVI II ESD Quick Start Guide =| 21
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