Emerson M310/FSM - Manuals - manualsarea.com

Page 3 - Functional Safety Manual; Horizontal Float Switch; Contents; Introduction

2 Functional Safety Manual M310/FSM, Rev AA January 2012 Horizontal Float Switch Contents Introduction Scope and Purpose of the Safety Manual ........................................................... page 3 Skill Level Requirement ......................................................................

Page 4 - Magnetic Level Switch Functional Safety Manual; INTRODUCTION; Skill Level Requirement

3 Functional Safety Manual IP101/FSM, Rev AAJanuary 2012 Horizontal Float Switch Magnetic Level Switch Functional Safety Manual INTRODUCTION Scope and Purpose of the Safety Manual This safety manual contains the information to design, install, verify and maintain a Safety Instrumented Function (SIF)...

Page 7 - Level Switch Purpose; High and Low Level Alarm; Operation Principle; Level Decreases –

6 Functional Safety Manual M310/FSM, Rev AA January 2012 Horizontal Float Switch PRODUCT DESCRIPTION Level Switch Purpose Mobrey magnetic level switches are ideal for high and low liquid level alarm, overfill alarm, and pump control duties. Figure 1. Application Example: High and Low Level Alarm Ope...

Page 8 - Level Increases –; Ordering Information

7 Functional Safety Manual IP101/FSM, Rev AAJanuary 2012 Horizontal Float Switch Figure 3. Level Increases – Float Pivots Upwards NOTE: For all product information and documentation downloads, visit www.mobrey.com. Ordering Information Level switch models fitted with options listed on pages 14 and 1...

Page 9 - Safety Function; Environmental Limits

8 Functional Safety Manual M310/FSM, Rev AA January 2012 Horizontal Float Switch DESIGNING A SAFETY FUNCTION USING THE LEVEL SWITCH Safety Function A change in liquid level through the operating range of the float causes the switch to operate. It may be used in high level or low level safety related...

Page 10 - SIL Capability; Systematic Integrity; Safety; FMEDA

9 Functional Safety Manual IP101/FSM, Rev AAJanuary 2012 Horizontal Float Switch SIL Capability Systematic Integrity The Mobrey level switch has met manufacturer design process requirements ofSafety Integrity Level 2 (SIL 2). These are intended to achieve sufficient integrity against systematic erro...

Page 11 - General Requirements; Installation

10 Functional Safety Manual M310/FSM, Rev AA January 2012 Horizontal Float Switch Connection of the Level Switch to the SIS Logic Solver The Mobrey level switch should be connected to the safety-rated logic solver which is actively performing the safety function as well as automatic diagnostics (if ...

Page 12 - Proof-test Requirement

11 Functional Safety Manual IP101/FSM, Rev AAJanuary 2012 Horizontal Float Switch OPERATION AND MAINTENANCE Proof-test Requirement During operation, a low-demand mode SIF must be proof-tested. The objective of proof-testing is to detect failures within the equipment in the SIF that are not detected ...

Page 13 - SPECIFICATIONS

12 Functional Safety Manual M310/FSM, Rev AA January 2012 Horizontal Float Switch SPECIFICATIONS Useful LifeUSEFUL LIFETIME According to Section 7.4.9.5 of IEC 61508-2, a useful lifetime based on experience should be assumed. Although a constant failure rate is assumed by the probabilistic estimatio...

Page 14 - Proof Test Coverage

13 Functional Safety Manual IP101/FSM, Rev AAJanuary 2012 Horizontal Float Switch PROPOSED PROOF-TEST PROCEDURE According to Section 7.4.3.2.2 (f) of the standard IEC 61508-2, proof-tests shall be undertaken to reveal dangerous faults which are undetected by diagnostic tests. This means that it is n...

Page 17 - Mobrey Level Solutions

M310/FSM Rev AA 01/12 Functional Safety Manual M310/FSM, Rev AA January 2012 Horizontal Float Switch © 2012 Mobrey Ltd. All rights reserved. International: Emerson Process Management Mobrey Ltd. 158 Edinburgh Avenue Slough, Berks , SL1 4UE , UK T +44 (0)1753 756600 F +44 (0)1753 823589 www.mobrey.co...