The HAM6 shutter doesn't have high voltage. (The medm screen says that the high votlage is OK, but the LED on the driver says the capactior is only charged to 13V.) With Varun as a phone buddy I went to the mezzanine, the HAM6 high voltage supply is off. Attached is a trend of PT-110 over night, there is a spike to 4e-5 Torr around midnight . It is reading 1.1e-6 Torr now.
Talked to Richard on the phone and reset the high voltage.
On second reading, this is another example of the HV tripping off due to the gauge noise spike observed earlier this week. As discussed then, we can swap-out the gauge electronics as the first step in a troubleshooting process.
Gerardo had suggested degassing the hot filament last week but I don't see a LOG entry recording this. This should be done before anything else. I think that Patrick T. can do this via CDS? Beckhoff?