CP6 Dewar level started alarming at 15% full. We have an LN2 delivery scheduled for Wednesday now that X1 is clear of tumbleweeds, and want to avoid Dewar level falling below 10%, at which point contaminate (ice crystals) buoyancy level meets CP supply line and thus potential for ice plugs is high.
Ignore alarms for now. LN2 consumption averages 1.2% per day.
Glad to hear operators are not being pestered with these alarms at console. I've asked Dave Barker to silence text alarms.
As requested by Chandra, I've bypassed the CP6 LN2 Dewar cell phone alarm for 24 hours, we can extend this as needs be.
Bypass will expire:
Tue Jan 21 15:49:45 PST 2020
For channel(s):
H0:VAC-MX_CP6_LT355_DEWAR_LEVEL_PCT
Thank you Chandra. We have not yet had any CR alarms.
Actually since the delivery is not scheduled until Wednesday this week, I've extended the bypass till then.
Bypass will expire:
Wed Jan 22 16:03:24 PST 2020
For channel(s):
H0:VAC-MX_CP6_LT355_DEWAR_LEVEL_PCT