Now that most of the installation work is complete and the over chamber cleanrooms are turned off, I have shutdown and removed the dust monitors from the HAM2, HAM3, HAM4, HAM5, and the X-Arm spool areas. We are currently monitoring the general air in the LVEA via dust monitors in the Beer Garden and the HAM6 end of the tube.  

   While removing the above mentioned dust monitors I found several that had been unplugged from A/C power. The extension cords unplugged from these dust monitors had other things plugged into them. These dust monitors were plugged into A/C power because their batteries are failing (and cannot be replaced). By unplugging these dust monitors they were taken off line and not monitoring the cleanroom environment.

   Please do not unplug dust monitors from A/C power without talking to Jeff B. first.