R&D (FilterCavity)
RyutaroTakahashi - 15:39, Monday 25 November 2019 (1878)
Fail of TMP in south end

I found that the TMP in south end was failed. The TMP controller showed red indication but the LCD was disappeared.

Similar to the case in BS, oil vapor went from the RP to the TMP. Therefore the RP was replaced to the dry pump from the MC.

The TMP controller was replaced to the other one from the BS. The TMP is under baking to remove the contamination due to the oil vapor.

Comments related to this report
RyutaroTakahashi - 18:04, Monday 25 November 2019 (1880)

Baking time today (11/25): 14:00-17:00 (3 hours)

RyutaroTakahashi - 14:02, Tuesday 26 November 2019 (1887)

Baking time today (11/26): 9:30-10:30 (1 hour)

After the temparature settled, I opened the gate valves for the TMP. The pressure was decreased from 1x10-6 mbar to 2x10-7 mbar.