14:47 TPC pressure 330 mbar Recirculation pressure: 290 mbar 

15:35 TPC pressure 345 mbar Recirculation pressure: 300 mbar 

16:35 TPC pressure 440 mbar Recirculation pressure: 400 mbar 

16:43 Heat gun off 

18:04  TPC pressure 230 mbar Recirculation pressure: 230 mbar 

18:55  TPC pressure 250 mbar Recirculation pressure: 250 mbar 

Bubbler 8.4 V 5.1 mA 

LAr bath level 55 cm 

MB OFF 

LED ON 

9:20 TPC pressure  235 mbar recirculation  pressure 235 mbar. Gas pocket on. LED OFF. MB ON.  LAr level  50 cm 

10:20 TPC pressure  240 mbar recirculation 240 mbar

10:34 Heat gun ON

11:10 TPC pressure  375 mbar recirculation 330 mbar

11:17  Heaters OFF

11:19 Heat gun OFF

Argon refills of the open bath are suspended in order to increase the deltaP between the TPC and the recirculation vessel, in order to force gas recirculation through the oxygen-sorption filter. The goal is to see S2 signal.

Currently the pressure is stable, fluctuations seezed over night. DeltaP very low, ~5 mbar.

Up to now (last check evening of November 1) sporadic noise with high amplitude and frequency ~50kHz was suddenly appearing when the FEBs are turned on, forcing to stop the data acquisiton.

Gas pocket: ON

Fields: ON

SiPMs: OFF

FEBs: OFF

DAQ: idle

LAr level in the open bath: >1/2