Enclosure solutions for process control applications

INTERTEC’s enclosure innovations simplify process control

Distributed control system architectures are generating demands for tougher enclosures. Many remote I/O applications as well as applications for supervisory control and data acquisition (SCADA) call for protective plant buildings like satellite instrument houses or remote instrument enclosures. Such buildings are often air conditioned and need to support human access - which can then necessitate features such as blast- or fire-resistance.

By specifying rugged dust- and water-proof enclosures to protect control equipment located deep inside processing areas, engineers can realise more versatile architectures. For software-configured I/O, this allows enclosures to be assembled and sealed in the factory - so equipment never needs to be exposed to dangerous site conditions.

Composite GRP construction materials ensure reliability and extend the mean time between failures (MTBF). Equipment sited close to the process can be exposed to corrosive atmospheres. INTERTEC's GRP is highly stable and virtually immune to the effects of salt, common petrochemicals and airborne pollutants.

Remote I/O applications use sensitive electronic devices, with reliabilities that are drastically reduced by overheating. GRP's efficient insulation protects against temperature extremes. Cooling may also be required. The superb temperature stability of insulated GRP also makes it possible to efficiently employ passive or hybrid cooling.

Novel configuration techniques are supporting moves towards highly distributed control. One technique is ‘inside-out’ PERI SHELTER layouts. This allows sensitive electronics to be sealed at the factory, and operators to access I/O connections via exterior-mounted enclosures. Such approaches are particularly beneficial for hazardous environments. Learn more about the technology in this article.

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