M9sol Logbooks Solenoid Daily log

Solenoid logbook

Fields marked with * are required Entry time: Wed Jan 15 13:35:17 2025 Author*: - please select - Doug Preddy Curtis Ballard Kevin Trithardt David Kishi Experimentor Other Operational Mode: - please select - Normal Running Quench Recovery Start Up Shut Down Maintenance Other Subject*: > 02:30 this morning got page from operations. > Looked at system online, appears that there was a powerlead overtemp > that caused the quench. Compressor still running. After arriving to > work set system to // warm return mode to cool down transferlines. Lhe > level starts to boil away. Switch to // cold return mode. Discovered that > seem to get better cooldown rate by not opening supply valves to solenoid > fully. // cold return valves are fully open but both CV143 and CV146 are > only open to 0.55 giving mu1 and mu2 inlet pressures of 2 barA. Getting > good cool down rates and even building LHe level. > > 04:25 C1 down to 8K, C12 at 7.5K, C6 at 7.5K, 6KS_M at 10.5K Encoding: HTML   ELCode   plain   Suppress Email notification Attachment 1:

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