chandra.romel@LIGO.ORG - posted 17:00, Thursday 15 February 2018 - last comment - 19:58, Thursday 15 February 2018(40561)
CP4 pressure alarm settings changed
Pressure keeps rising in CP4 (PT-245B). I've asked Dave B. to raise the alarm set point one order of magnitude to 5e-4 Torr. I'm staying late again and Kyle is on stand-by to come on site later to babysit pumps, if needed.
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alarms were reconfigured and restarted. Here is the difference:
-<Channel name="H0:VAC-MY_Y4_PT245B_PRESS_TORR" low="1.0e-10" high="5.0e-05" description="VE gauge, MY CP4, CC">
+<Channel name="H0:VAC-MY_Y4_PT245B_PRESS_TORR" low="1.0e-10" high="5.0e-04" description="VE gauge, MY CP4, CC">
Weird pressure curve at CP4. Eight hour trend attached. Tried to scan with RGA but pressure is too high for filament to stay on.
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Adjacent pressure trends
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