aLIGO LHO Logbook

LHO VE

kyle.ryan@LIGO.ORG - posted 11:02, Wednesday 20 April 2016 - last comment - 13:57, Wednesday 20 April 2016(26686)

1030 hrs. local -> Magnehelic diff. level gauge indicates 44" = 106% full for CP6

Now that X-mid has been upgraded to Beckhoff, transducer read back values which exceed 100% are displayed as 100%.  I found this to be an important detail when trying to interpret why CP6's level wasn't shown as reducing as a function of time with the stated conditions.

Comments related to this report

kyle.ryan@LIGO.ORG - 13:57, Wednesday 20 April 2016 (26693)

Link

1330 hrs. local -> Magnehelic between 43" and 44"?  No change? 

Also, I briefly valved-out the instrument air to the LLCV actuator and perceived no valve stem stroke, i.e. the current manual setting of 5.00% open is the same as if 0.00% open.