Reports until 15:37, Tuesday 24 April 2012
LHO General
patrick.thomas@LIGO.ORG - posted 15:37, Tuesday 24 April 2012 (2674)
dust monitor code
I am now running new dust monitor code on h0epics2, which is a Ubuntu workstation. It is running under screen.

There has been a bug in the previous code, such that data does not appear to have been recorded since March 15, 2012 for the following:

Dust monitor in clean room over BSC8
H0:PEM-LVEA_DST15_3     any data for counts > 200
H0:PEM-LVEA_DST15_5     any data for counts > 200

Dust monitor in clean room over test stand in LVEA
H0:PEM-LVEA_DST4_3      any data for counts > 200
H0:PEM-LVEA_DST4_5      any data for counts > 200

Dust monitor in OSB optics lab
H0:PEM-LAB_DST1_3       any data for counts > 20,000
H0:PEM-LAB_DST1_5       any data for counts > 8,000

Dust monitor in OSB bake oven room
H0:PEM-LAB_DST3_3       any data for counts > 20,000
H0:PEM-LAB_DST3_5       any data for counts > 8,000

This was because the audible alarms were set for these dust monitors at these levels. When these alarms went off a signal was sent which was read by the CDS code as an error. The CDS code then set the epics channel to INVALID, and the counts were not updated. This should be fixed in the new code.