kyle.ryan@LIGO.ORG - posted 19:07, Thursday 28 July 2016 - last comment - 12:11, Friday 29 July 2016(28719)
Pressure bump at Y-end
The pressure change seen in the attached is typical of the Y-arm gauges with PT410 responding first followed by subsequent responses in time as it propagates toward the CS. Looks like a real change and occurs 15 mins or so after a seismic system change was made at the Y-end (Jim W?) or not. IP9 has not changed voltage -> Will monitor from home.
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Y2-8 IP is not pumping. Controller doesn't power past 350 V and 430 mA. Gerardo & Chandra reseated cable at both ends and rebooted controller. Next Gerardo & Richard will test HV cable. The controller initially read back an error code 02. Gerardo contacted Gamma for troubleshooting and waiting to hear back (their online screens are currently not available).
UPDATE: bad HV cable