Reports until 11:48, Wednesday 11 September 2024
H1 TCS (DetChar)
camilla.compton@LIGO.ORG - posted 11:48, Wednesday 11 September 2024 (80043)
HWS Lasers turned on again, HWS plates need to be reinstalled.

TJ, Camilla.

We turned on the HWS lasers via medm and the LVEA chassis, they came back with the same powers we turned them off with (1.7mW for Y and 3.2mW for X). Since we realigned SR3 to the pre-April alignment yesterday 80028, both beams are on the CCD cameras, picture. The HWS plates are still removed from when we started alignment work in 78083. We will need to replace these before getting HWS signals, then restart HWS code.

CO2X chassis tripped off with the "RTD or IR alarm" error when I turned on the HWS SLED chassis (same rack). Turned back on with no issue (keyed off/on, gate button). We've seen similar behavior before. These CO2 chassis are planning an upgrade as per FRS6639.

I found the LVEA, clean receiving entrance and EE bay lights still on, turned them off but they would have been on during observing since yesterday, tagging Detchar.

Images attached to this report