146 Operation Manual
10 Configuration
Cryo fault Shuts the oven down if it does not reach setpoint
temperature after 16 minutes of continuous cryo operation.
Note that this is the time to reach the setpoint, not the time
to stabilize and become ready at the setpoint. For example,
with a cool on- column inlet and cryo control in the oven
track mode, it may take the oven 20 to 30 minutes to
achieve readiness.
If the temperature goes below the minimum allowed
temperature (–90°C for liquid nitrogen, –70°C for liquid
CO
2
), the oven will shut down.
The COC and PTV inlets must use the same cryo type as
configured for the oven.
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