Reports until 07:49, Thursday 08 August 2024
H1 PEM
genevieve.connolly@LIGO.ORG - posted 07:49, Thursday 08 August 2024 (79507)
PEM accelerometer channels reconnected
On Monday Aug 5 around 21:00 UTC, Sam and I went looking for several accelerometers that LigoCAM reported were disconnected: H1:PEM-CS_ACC_HAM5_SRM_X_DQ, H1:PEM-CS_ACC_HAM5_SRM_Y_DQ, H1:PEM-CS_ACC_HAM6_OMC_X_DQ, and H1:PEM-CS_ACC_LVEAFLOOR_BS_Y_DQ. We found that the switch for H1:PEM-CS_ACC_LVEAFLOOR_BS_Y_DQ was turned off in the electronics bay so we turned it back on and it is now connected. Yesterday Wednesday Aug 7 between 19:40-20:09 UTC, I went back with Janos' help to take care of the other three accelerometers. The cords at the accelerometers had been disconnected for opening the HAM chambers, so we plugged them back in. All of these accelerometers are now connected, with confirmation from LigoCAM.