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VIS (SR3)
mark.barton - 21:16 Monday 21 May 2018 (5035) Print this report
SR3 Installation

With Enzo, Hirata-san and Fujii-kun.

Today:

  • We lowered the OL back to the optic height. The LED was at 40.5 mm, for a target height of 60.5 mm.
  • We checked the BF FR. The locknut was correctly set to give a maximum height of 50 mm. The moving stage had been at about 42 mm, so we lowered it to midrange, 35 mm.
  • We cabled the TM OSEMs through to the flange and checked the coil connections.
  • We wired up the BF yaw pico, the BF FR stepper and the BF LVDT.
  • We routed the TM OSEM cables, the IM pico cable, and the various BF internal cables through the cable clamps on the bottom of the BF.
  • We tested the IM pitch, roll and yaw picos.
  • We adjusted trim mass on the IM to get the pitch to 1/300 (per the OL), the roll to level (per the bubble level) and the BF keystone height to 65.5 mm. See paper log book (in NAOJGW Google Photos) for details.
  • We checked the IM flag magnets in case any had been reversed - all were as expected (V1 = S, all others N).
  • We added the side panels of the IRM.
  • We added the IM OSEMs:
    • V1: #53
    • V2: #54
    • V3: #55
    • H1: #56
    • H2: #57
    • H3: #58
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