jonathan.berliner@LIGO.ORG - posted 13:44, Friday 12 August 2011 - last comment - 15:39, Thursday 18 August 2011(1206)
SEI/SUS Test Stand Dust/Particulate Report
[Responding to request during morning INS meeting...] Dust monitor #3 is in the ISI stand cleanroom, #4 is in the SUS stand cleanroom within the LVEA. The scale of the axes in each plot are different. Notes: - At no point did these dust monitors alarm this morning, indicating unacceptable levels. - Dust peaks in ISI and SUS areas do not seem to be correlated, indicating dirty activity particular to that room, not somewhere else in the LVEA. - H0:PEM-LVEA_DST_3_5 has been 0 since yesterday afternoon...should probably be inspected.
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I suspect that the alarm level settings for the dust monitors were not restored after the power outage and so they would not have alarmed at any value. I have restored them today.