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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>Hello All,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>I wanted to survey the group for information regarding the type and brands of toxic gas monitoring control systems in use. <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>Here at the CNST, we use various gas sensors (about 55) connected to a custom PLC based system that is just about at capacity. If a gas is detected, the system shuts down gas cabinets, sounds alarms, and alerts our fire department. The major shortfall of the system is that the detection level can be read at the sensor in the detection zone but is not displayed at the control interface. <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>Before we decide on upgrading or replacing our control system, I thought I would see what others are currently using. Thanks for your input.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>Jerry<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>*******************************************<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>Jerry Bowser<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>NanoFab Operations Group<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>Center for Nanoscale Science and Technology<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>National Institute of Standards and Technology<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif"'>Phone: (301) 975-8187<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>