Instruction/ maintenance manual of the product ET Fisher
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www.Fisher.com SIL S afety M anual f or F isher r E D , E T , E Z , HP, o r H PA V alves w ith 6 57 / 6 67 Actuator Purpose This safety manual provides information necessary to design, install, verify and maintain a Safety Instrumented Function (SIF) utilizing the Fisher ED, ET, EZ, HP, or HPA valve with 657/667 actuator.
ED, ET, EZ, HP, HPA Valves w/ 657/667 Actuator SIL Safety Manual July 2010 2 Terms and Abbreviations Safety: Freedom from unacceptable risk of harm. Functional Safety: The ability of a system to carry.
ED, ET, EZ, HP, HPA Valves w/ 657/667 Actuator SIL Safety Manual July 2010 3 Related Literature Hardware Documents: 51.1:ED, Fisher ED, EAD, and EDR SlidingStem Control Valves Bulletin: D100017X012 Fisher ED and EAD easye t Valves CL125 through CL600 Instruction Manual: D100390X012 51.
ED, ET, EZ, HP, HPA Valves w/ 657/667 Actuator SIL Safety Manual July 2010 4 Designing a SIF Using Fisher ED, ET, EZ, HP, or HPA Valve Safety Function When the valve’s actuator is de-energized, the actuator and valve shall move to its fail-safe position.
ED, ET, EZ, HP, HPA Valves w/ 657/667 Actuator SIL Safety Manual July 2010 5 user or diverse technology redundancy in the design. Random Integrity The ED, ET, EZ, HP, or HPA valves are classified as Type A devices according to IEC 61508, having a hardware fault tolerance of 0.
ED, ET, EZ, HP, HPA Valves w/ 657/667 Actuator SIL Safety Manual July 2010 6 Physical Location and Placement The Fisher ED, ET, EZ, HP, or HPA valve shall be accessible with sufficient room for the actuator, pneumatic connections, and any other components of the final control element.
ED, ET, EZ, HP, HPA Valves w/ 657/667 Actuator SIL Safety Manual July 2010 7 Appendix A Sample Startup Checklist This appendix provides a Sample Start-up Checklist for a Fisher ED, ET, EZ, HP, or HPA valve. A start-up checklist will provide guidance during the final control element’s emplo yment.
ED, ET, EZ, HP, HPA Valves w/ 657/667 Actuator SIL Safety Manual July 2010 8 Note Neither Emerson, Emerson Process Management, nor any of their affiliated entities assume responsibility for the selection, use, or maintenance of any product.
An important point after buying a device Fisher ET (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Fisher ET yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Fisher ET - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Fisher ET you will learn all the available features of the product, as well as information on its operation. The information that you get Fisher ET will certainly help you make a decision on the purchase.
If you already are a holder of Fisher ET, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Fisher ET.
However, one of the most important roles played by the user manual is to help in solving problems with Fisher ET. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Fisher ET along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
