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Stop
Detach
Cryogenic Systems Operation
Table 4
Initial state: Cooling or Operating
State
Warming
Idle
Table 5
Detach - Initial State: Idle
State
Detaching Probe
Idle
Principles of Operation
CryoBay order of operations/conditions
•
Turbo pump on (a high pitch hum may be heard,
this is normal).
•
Waits for turbo pump to reach full speed.
•
Note: the compressor will not turn off until the
turbo is ready ~1 min.
•
Ion pump off.
•
Compressor off.
•
Temperature controller warms CCC.
•
Close probe vacuum valve (indicator on probe
valve will disappear).
•
Turbo pump off.
•
Temperature control off.
CryoBay order of operations/conditions
•
Turns off turbo pump and closes valves (if on and
open).
•
Open purge out valve.
•
Wait until inlet pressure < 20 psi (0.14 mPa).
•
Close purge out valve.
•
Detach Probe window appears.
•
Close valves
4
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