In addition, I pulled the Dial Indicators from the East side, Turned off the ISI Sensor/Driver electronics, unplugged all the the East air-side cabling, and removed those Feed-Thru protection shrouds. This will give access to the final bolts of the Septum flange. Be mindful of the CPS Feedthrus on the North side--long and vulnerable.
For the operators or future HEPI Lockers, attached are trends from before starting thru after stopping the HEPI down. We shoot for < +-200 IPS Counts (655cts/mil) and it looks like we did pretty well here. Also are trends of the Cartesian values. These are nanos(meters/rads) for the horizontal/rotation dofs. We shifted 7um in X, less for Y & Z and 5urads RX and less for RY & RZ. RZ is likely the most important for the upcoming alignments, it shifted 2urads.
Bartlett, Thomas
Notes for Saturation counter bleeding design:
- As of 3:40 in the afternoon, the H1:HPI-HAM5 L4C saturation counter is still at at 16326 (122880 allowed).
- 12h minute trends is attached. It shows that the L4C saturation counter of this platform was not reset throughout the day.
to note: after a day of heavy installation work around this chamber, the HPI L4C WD is still a long way from saturation. I (Brian L) believe that this is not a good day to consider when thinking about the auto-bleed-down rate. This sort of shenanigans should be cleared by an operator - under the belief that if this sort of thing were happening to the HPI, then someone should know about it.