1. Charting the path to NeSSI* Gen II a comparison of POCA & POCA-2 projects CPAC - Seattle, WA - Nov. 4, 2002 NeSSI End Users Group. “the best way to predict the future is to create it” *New Sampling/Sensor Initiative

2. A Comparison of Proof of Concept Apparatus Projects (POCA) POCA –p, T, F Sensors (gas) –SAM is a PC –commercial HMI software –Windows operating system –discrete IS barriers –microClimate enclosure heater/T not integrated –substrate heater/T not integrated –no wireless operator access –Early Vo, Vm POCA-too –p, T, F Sensors (gas & liq.) –SAM is Ex d picocontroller –“open” software –CE operating system –IS electronics in SAM –microClimate enclosure heater/T network integrated –substrate heater/T network integrated –PDA/wireless connectivity –Optimized Vo, Vm

3. The “Downmount” Transducer Plug and Play Std. Mechanical ANSI/ISA SP76 Interface Std. Electrical DeviceNET I/S Interface Anyone’s Sensor Transducer c/w Software Applet Anyone’s Actuator Transducer c/w Software Applet

4. Generation II System V P A T Programmable Substrate Heater Ethernet LAN Analyzer Controller SAM CANbus PDA & Cell