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Intrinsic Safety Overview

Intrinsic Safety Overview. Evolution of NeSSI. Micro Analytical (enabled by Technology Advances). End User Value. Gen III Circa 200?. By Line (enabled by Intrinsic Safety). Gen II Circa 2005. PnP Smart Devices (enabled by Communication Standard). We are Here. Gen I Now.

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Intrinsic Safety Overview

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  1. Intrinsic Safety Overview

  2. Evolution of NeSSI Micro Analytical (enabled by Technology Advances) End User Value Gen III Circa 200? By Line (enabled by Intrinsic Safety) Gen II Circa 2005 PnP Smart Devices (enabled by Communication Standard) We are Here Gen I Now Miniature/Modular (enabled by Mechanical Standard)

  3. Plug-n-Play Top Hat Concept Presented at IFPAC 2002 by Rob Dubois, Dow Chemical.

  4. Hazardous Area Protection Methods Purge Mount electric devices in a cabinet to keep explosive atmosphere out. Explosion Proof Mount electric devices in a cabinet to keep explosion in. Intrinsic Safety Prevent the explosion ignition by limiting electrical energy.

  5. FISCO Power Budget • Fieldbus Intrinsically Safe COncept model • Developed by PTB1 in Braunschweig, Germany • Doubles the number of devices per segment. • Physikalisch-Technische Bundesanstalt (PTB), http://www.ptb.de/en/index.html Johannsmeyer, "Investigation into the intrinsic safety of fieldbus systems (FISCO)". PTB, report W53, ISBN 3-89429-310-1. Physikalische Technische Bundesanstalt, "Investigations into the intrinsic safety of fieldbus systems". PTB 1994, ISBN 3-89429-512-0

  6. OPC Gateway CAN Master 24 VDC SensorActuator Manager V A P T IS Barrier NeSSI Architecture Information - Level 2 LAN (Ethernet) Control Room Field - Level 1 LAN (EtherNet) Field By-Line Sample Point Class 1 Zone 0/1 Enclosure Class 1 Zone 2 Sensor - Level 0 LAN DeviceNet <250 ft @14VDC Circuit 1 Circuit 2 Gas Analyzer Logical Segment Wireless Handheld HMI Circuit 0 NeSSI Device Sample System

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