Now in full // cold return mode.
Had just talked with Curtis, He said thta he has already informed the 
experimentors that the solenoid will not be ready until tommorow, so he 
suggests leaving the system in reduced // cold mode overnight.

No indicator lights etc as to why the compressor tripped. The only  light 
was a cold box fault. I had to shut off the main breaker before the 
compressor would come back on.
Started cooling in parallel  cold return.

power leads warming. closed HIC 142, then re-opened. temps falling

Solenoid is cold, liquid level is 35%, power leads cold and seem stable.
Added one bottle helium to buffer tank. Pressure is 7 psi..

Started flow to power leads.
Liquid level 15%

Changed to series mode.
Liquid level building.

CV155 closed.
Temps about 15K

switched to parallel cold return

Solenoid and cold box were pumped out last Tuesday. Cold box roughing pump 
initially would not start. had to retighten all wires on the contactor in 
the Sulzer control panel (RP900).
Started compressor on Friday. ran purifier over the weekend.
Started flow in parallel warm return. Started flow to turbines.
Replacing dead monitor on other control computer.

shuttting down the system. isolated cold box by closing v135. preparing to 
pump out cold box.

The solenoid tripped on power lead temps at about 9:15. I am recovering it 
from it's all around mode into parallel cold return.

Saturday November 12 the solenoid power supply ramped itself down to zero. 
It would not ramp up unless the ramp rate was set to 30 minutes. At this 
setting the power supply ramped up to the required current. It seems to 
ramp slower than the 30 minute rate. Klaus also looked at the problem. His 
suggestion is to exercise/clean the switches and pots.

started flow to solenoid in parallel cold return.

Last night at about 7:00 there was a large power bump that shut the 
compressor and water pump off. I came in this morning and am restarting the 
system.

Started M9B MYCOM helium compressor circulating helium through system last 
Friday. Right hand purifier was regenerated previously, LN2 fill system 
started and flow started from buffer through purifier to low pressure 
return line to compressor. Left in this mode over the weekend. Curtis came 
in on weekend to add new full LN2 dewar to purifier.

Started // warm return cooling Monday.
Tuesday morning solenoid temps about 35 K and TI121 about 35 K  so 
switching to // cold cooling.

Note:

PDI 104 guage is very slugish to respond, needs to be replaced or cleaned.
TI148 and TI149 need to be recharged with helium, they do not work yet.
TIC121 may be reading too high a temperature, try to verify it with TE147 
before JT effect begins. Now TI121=20.7 K   TE147=25 K   HIC155 is full 
open still.
LIC108 is reading too high, reads 22% LHE but really is no LHE at this 
point.

Keep IT safe boys

No experiment running in M9B.

Solenoid current is zero and power supply not armed.

System in stable series cooling mode.

Machine trip just as I was exiting the TRIUMF gate. QRL said cold box fault 
as did red lite on compressor. At cold box panel all turbine red lites were 
on and compressed air failure lite was on. But there was no problems with 
compressed air. On fist trip logger LED # 8 and 16 were lit. Restarted 
compressor then start flow to cold box, start turbines, start // warm 
return until temps returning back from solenoid were <= TIC121 then 
switched to //cold return mode. Opened cv155 to 0.88
Solenoid temps at 24K and starting to trend down.

CR_6KS_M down to 11 K.
Switched to series mode.
Started small flow to power leads to get them cold.
HIC142=0.6        Later open HIC142 wide open.
Raised discharge press to 11.4 barA.
Letting LHe level build.

Recovered the vacuum in the solenoid, then started the compressor.
Started flow to solenoid in parallel warm return.