Emerson EL-O-Matic F Series Safety Manual

11
September 2018
SIL Safety Manual
DOC.SILM.EF.EN Rev. 1
Periodic Test and Maintenance Requirements
Table 2. Instruments/equipment to be used for the test
Quantity
Instruments/equipment
Automatic Procedure Manual Procedure
Angular position of
the shaft
Case A
Use of a Logic Solver:
1. Limit switches box, or 4÷20 mA
position transmitter
2. Digital Input Module / Analog Input
Module included in the Logic Solver
3. Application Software function
(to compare the actual trend with the
one stored during SAT)
Case B
Use of a Partial stroke testing device:
1. Limit switches box, or 4÷20 mA
position transmitter
2. Partial stroke testing device with
integrated Software function
1. Limit switches box, and/or
visual indication
2. Skilled and trained
personnel
Time necessary
to reach the nal
position
As above
1. Limit switches box, and/or
visual indication
2. Chronometer
3. Skilled and trained
personnel
Output torque
(Pressure in the
cylinder)
Case A
Use of a Logic Solver:
1. Pressure transmitter connected to
the cylinder chamber
2. Analog Input Module included in
the Logic Solver
3. Application Software function
(to compare the actual trend with the
one stored during SAT)
Case B
Use of a Partial stroke testing device:
1. Pressure transmitter connected to
the cylinder chamber
2. Partial stroke testing device with inte-
grate Software function
Skilled and trained
personnel (to check audible
partial sticking)
Table 3. Failure mode detectable by the test
Component
Detectable failure modes
Automatic Procedure Manual Procedure
Housing Breakage
As per automatic procedure
End cap Breakage
Piston
Breakage
Sticking
Rack
Breakage
Binding
Pinion
Breakage
Binding
Spring
Breakage
Weakened
Stroke adjustment
Breakage
Bended
Section 8: Periodic Test and Maintenance Requirements

Emerson EL-O-Matic F Series Specifications

General

Brand	Emerson
Model	EL-O-Matic F Series
Category	Controller
Language	English