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Reports until 18:09, Monday 21 October 2019
LHO VE (VE)
gerardo.moreno@LIGO.ORG - posted 18:09, Monday 21 October 2019 (52603)
NEG 1 Pump Update (OMC NEG pump)

On Friday I leak tested the housing of the NEG pump, after some mixed signals I determined that there was no leak.  The background on the leak detector remained around 4.5E10-10 torr*L/Sec.

Today I found out that one of the NEG controllers is misbehaving, it did not have the correct settings for the activation procedure nor the correct setting for a conditioning procedure, regardless of the pump or the procedure selected the settings remained the same.  The NEG cable connection was moved to a different controller that had the correct settings.  NEG pump 1 was activated without issues, and it's internal temperature reached the programed temperature of 550 oC.  The gauge corresponding to this pump is currently reading at 2.31 x 10-07 torr.

The odd controller will be set aside and troubleshooted at a later time.

The NEG pump system will remain with the small turbo and leak detector attached until tomorrow, due to its internal temperature, last I checked the temperature inside the NEG was ramping down and the current temperature was 38 oC.

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