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Pepperl+Fuchs Blog

Because Sometimes You Need More Than an Intrinsic Safety Barrier

Posted by David Hohenstein on Thu, Sep 03, 2015

There are times when you need only an intrinsic safety barrier or surge protection to get the job done. But what if you need more than just a component, something more customized, something like a complete system solution—including documentation and certification? Sure, you could always build your own and have it certified yourself. But it's time consuming, and the number of approval standards and certification bodies is enormous. You really need to be focusing on keeping your plant running.

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Topics: Approvals/ Certifications, Hazardous Area Enclosures/ Equipment, Intrinsic Safety Barriers

Industry 4.0 Comes to Hannover Fair 2015

Posted by Patricia Stafford on Wed, Apr 01, 2015

The Internet of Things is an up-and-coming technology which is set to transform the way we live. Simply put, it allows machines to communicate directly with each other over the Internet. This connection between machines will lead to greater convenience and efficiency based on a more rapid exchange of information. Everyday examples might include a car telling a garage door when to open or close, a stove turning itself on to boil a pot of tea that will be ready for you when you come home from work, a timer setting thermostats, and your refrigerator letting you know when you’re running low on groceries.

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Topics: Terminology, Ultrasonic Sensors, HART, Photoelectric Sensors, Hazardous Area Enclosures/ Equipment, RFID

Explosion Protection Equipment Gets a New Website

Posted by Aaron Severa on Thu, Feb 27, 2014

We recently launched our latest microsite, www.explosionprotection.com, which focuses on explosion protection solutions.

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Topics: Hazardous Area Enclosures/ Equipment

Succeeding with the Solutions Engineering Center (SEC)

Posted by Barbara Vazquez-Isla on Fri, Jan 31, 2014

Customized, certified solutions for hazardous locations

In Pepperl+Fuchs lingo, “SEC” stands for Solutions Engineering Center. Our newest SEC location is in Houston, Texas. Other SEC locations include one in Twinsburg, Ohio as well as international locations in England, Germany, Singapore, and Australia.

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Topics: Approvals/ Certifications, Hazardous Area Enclosures/ Equipment

Purged HMI Systems — It's Possible, But...

Posted by Brian Alvarado on Wed, Feb 06, 2013

Purging a Class I/ Div. 2 HMI for Div. 1 applications is practicable

We get many questions about whether it is acceptable to put a Class I/ Div. 2 rated HMI into a purged enclosure for Class I/Div. 1 installation. It is certainly possible, but there are a few requirements.

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Topics: Purge/ Pressurization Systems, Industrial Monitors/ HMI, Hazardous Area Enclosures/ Equipment

Could Hazardous Gas Be Trapped Inside My Industrial Cabinet?

Posted by Zach Lohr on Thu, Jan 24, 2013

Q. We have an industrial cabinet (1.2 m x 0.8 m x 2 m) that is segregated into two halves with a door on the front and back. We want to properly configure a Type X purge system for this enclosure. Air has the ability to freely flow between the two compartments. Our concern is related to this segregation/separation of the two compartments. We believe there might still be hazardous gas trapped inside after the purging process is complete.

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Topics: Purge/ Pressurization Systems, Ask an Expert, Hazardous Area Enclosures/ Equipment

A Beginner’s Guide to Purge and Pressurization Systems

Posted by Mike Mendicino on Wed, Nov 07, 2012

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Topics: Purge/ Pressurization Systems, Hazardous Area Enclosures/ Equipment

What is a Fieldbus Junction Box?

Posted by David Hohenstein on Tue, Aug 28, 2012

We assign the term fieldbus junction box to an enclosure mounted in a remote location, near the process, containing some type of electronic distribution module for use in a digital ‘fieldbus’ application.

The module mounted within the enclosure typically provides short-circuit protection, current limitation, isolation, and other electronic monitoring to the connected field instruments/sensors and to the control system.

In a digital fieldbus network like PROFIBUS PA or FOUNDATION fieldbus, it is very important to provide protection against inadvertent shorts or other faults. FF and PA fieldbus networks share a single shield twisted pair for power and communication, so a fault of this type could potentially affect the entire network if the individual instruments are not isolated. This is the main reason it is NOT recommended to daisy chain PA and FF devices.

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Topics: Hazardous Area Enclosures/ Equipment, Fieldbus

The Class I Div. 1 Purge System Explained

Posted by Kristen Barbour on Tue, Aug 14, 2012

A Class I Div. 1 purge system is typically called a Type X purge. A Type X purge system is used to provide, control, and monitor instrument air or some other inert gas in an enclosure containing electronic equipment intended to be mounted within a Division 1 hazardous location.

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Topics: Purge/ Pressurization Systems, Hazardous Area Enclosures/ Equipment

Can Intrinsically Safe Equipment Be Worked on "Live"...

Posted by Devin Broadbent on Fri, Aug 03, 2012

...while located in the hazardous (explosive) atmosphere?

While maintenance/live-work on intrinsically safe field-wiring circuits is often confused with maintenance on intrinsically safe equipment, IEC/EN 60079-17 Electrical apparatus for explosive gas atmospheres – Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines) provides some information on this topic that can be useful to the reader.

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Topics: Terminology, Ask an Expert, Hazardous Area Enclosures/ Equipment, Intrinsic Safety

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