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The manufacturer

may use the mark:

Certificate / Certificat

Zertifikat /   認証

I/A Series 4-20mA HART

INV 061009 C001exida hereby confirms that the:

Invensys Foxboro

Foxboro, MA

USA

ressure ransm er with HW version 5 and SW version 5.0.0.2

Reports:

Inv 06-10-09 R001 V1R0

IEC 61508 Assessment IA

Series 4-20mA HART

Has been assessed per the relevant requirements of:

IEC 61508 Parts 1, 2, 3

and meets requirements providing a level of integrity to:

Validity:

This assessment is valid for

the IA Series 4-20mA HART

Pressure Transmitter.

Random Integrity: SIL 2 @ HFT=0,

SIL 3 @ HFT=1.

Safety Function:

-s assessmen s va un

July 1, 2011.

Revision 1.0 June 19, 2008

 

absolute or differential pressure. It subsequently communicates

this pressure level to a logic solver.

 Application Restrictions:The unit must be properly designed into a Safety InstrumentedFunction er the Safet Manual re uirements onl the 4-20mA

Product Assessor 

 single output with HART Communication is certified for use infunctional safety applications.

®

 Auditor 

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ex a Certification S.A.

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Certificate / Certificat / Zertifikat / 認証

INV 061009 C001

Systematic Integrity: SIL 3 Capable

Random Integrity: SIL 2 @HFT=0,

SIL 3 HFT=1

I/A Series 4-20mAHART PressureTransmitter 

Invensys Foxboro

SIL 3 Capability:

The product has met manufacturer design process requirements of Safety

Integrity Level (SIL) 3. These are intended to achieve sufficient integrity

against systematic errors of design by the manufacturer.

 A Safety Instrumented Function (SIF) designed with this product must not

be used at a SIL level hi her than the stated without “ rior use” ustification

Device sd  su1  dd  du  SFF

2 

Invensys Foxboro I/A Series 4-20mAHART Pressure Transmitter

0 FIT 236 FIT 703 FIT 70 FIT 93.1%

, by end user or diverse technology redundancy in the design.

IEC 61508 Failure Rates

SIL Verification:

The Safety Integrity Level (SIL) of an entire Safety Instrumented Function

(SIF) must be verified via a calculation of PFDavg considering redundant

architectures, proof test interval, proof test effectiveness, any automatic

agnost cs, average repa r t me an t e spec c a ure rates o a

products included in the SIF. Each subsystem must be checked to assure

compliance with minimum hardware fault tolerance (HFT) requirements.

* FIT = 1 failure / 109 hours

Form Version Date

C61508 2.00 May 2008

®

Certification S.A.

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