corey.gray@LIGO.ORG - posted 08:08, Wednesday 29 January 2025 - last comment - 09:59, Wednesday 29 January 2025(82525)
LAB1 Dust Monitor Looks Dead & Needs Power Cycle
Ran the dust monitor check this morning and noticed LAB2 had this note: Error: data set contains 'not-a-number' (NaN) entries
Dave mentioned this dust monitor has been down since christmas time and giving odd data (vs showing signs of being "dead"/offline). The plan was to get it replaced; so this is a known issue. Not sure where it is (Optics Lab or Vacuum Prep?).
The dust monitor is located in the Vacuum prep area, which is adjacent to the PCAL lab past the garb room. I've power cycled it, restarted the IOC and unplugged and replugged it from its network switch. It probably needs to be swapped but I don't have any internally pumped spares left right now, only pumpless spares that hook up to vacumm pumps. There is a internally pumped DMed in the LVEA that is unused currently, it's turned off during observing (LVEA dust monitor 5) as its pump is noisy, that I could potentially swap it for.