January 2004

Columns

HP Automation Safety: Safety-certified field equipment

I received an interesting question in a recent e-mail: "How can I design a safety instrumented function when I cannot buy safety-certified field equipment?" The designer went on to state that in his o..

Goble, W., exida LLC

I received an interesting question in a recent e-mail: "How can I design a safety instrumented function when I cannot buy safety-certified field equipment?" The designer went on to state that in his opinion the IEC 61511 standard was completely impractical to implement because of this issue. I can see how someone could develop this line of thinking. But the situation is not as dire as it might seem. First, IEC 61511 does not require that a safety designer choose only safety-certified equipment. The standard allows "proven in use" (PIU) justification. While it is true that the standard does not give specific details as to what that really means, most agree that if a user company has man

Log in to view this article.

Not Yet A Subscriber? Here are Your Options.

1) Start a FREE TRIAL SUBSCRIPTION and gain access to all articles in the current issue of Hydrocarbon Processing magazine.

2) SUBSCRIBE to Hydrocarbon Processing magazine in print or digital format and gain ACCESS to the current issue as well as to 3 articles from the HP archives per month. $399 for an annual subscription*.

3) Start a FULL ACCESS PLAN SUBSCRIPTION and regain ACCESS to this article, the current issue, all past issues in the HP Archive, the HP Process Handbooks, HP Market Data, and more. $1,995 for an annual subscription.  For information about group rates or multi-year terms, contact J'Nette Davis-Nichols at Jnette.Davis-Nichols@GulfEnergyInfo.com or +1 713.520.4426*.

*Access will be granted the next business day.

Related Articles

From the Archive

Comments

Comments

{{ error }}
{{ comment.comment.Name }} • {{ comment.timeAgo }}
{{ comment.comment.Text }}