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  *1. Method
   * Noise verification due to FFU operation <<br>> in the corner station		   * Method
   1. Make marks on FFU switches that are not turned off in MCE, IFI, PRM, PR3, PR2, BS, SR2, SR3, SRM, OMC with "Pink Tape".<<BR>> Operated FFU/Total FFU list is,<<BR>>


 || area name ||MCE || IFI || PRM || PR3 || PR2 || BS || SR2 || SR3 || SRM || OMC ||
 || Operation/Total ||2/16||2/12 ||2/12 ||4/16 ||4/20 ||4/20||4/20 ||4/16 ||4/16 ||4/16 ||
<<BR>>

   * 4 people stand by (MCE, IFI, PRM), (PR3, PR2, BS), (SR2, SR3), (SRM OMC) FFU switchs.
   * Keep taking sensitivity of FPMI condition by an operator.
   * Turn off almost FFUs at the same time by 4 people, except for pink one.
   * Check the difference btw FFU operation and alnost-no operation.

Plans for trial just after ER

  • Noise investigation about FFUs in the corner stations
    • Method

      1. Make marks on FFU switches that are not turned off in MCE, IFI, PRM, PR3, PR2, BS, SR2, SR3, SRM, OMC with "Pink Tape".
        Operated FFU/Total FFU list is,

    area name

    MCE

    IFI

    PRM

    PR3

    PR2

    BS

    SR2

    SR3

    SRM

    OMC

    Operation/Total

    2/16

    2/12

    2/12

    4/16

    4/20

    4/20

    4/20

    4/16

    4/16

    4/16


  • 4 people stand by (MCE, IFI, PRM), (PR3, PR2, BS), (SR2, SR3), (SRM OMC) FFU switchs.
  • Keep taking sensitivity of FPMI condition by an operator.
  • Turn off almost FFUs at the same time by 4 people, except for pink one.
  • Check the difference btw FFU operation and alnost-no operation.

KAGRA/EngineeringRun/ER191217_24/postERtrial (last edited 2020-01-05 17:30:32 by tatsuki.washimi)