User guide

32 Advanced User Guide
2 Configuration
Cryo fault This parameter is available with N2 cryo and CO2 cryo
Cryo types. Shuts down the inlet temperature if it does not
reach setpoint in 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.
Shutdown behavior
Both Cryo timeout and Cryo fault can cause cryo shutdown. If
this happens, the inlet heater is turned off and the cryo valve
closes. The GC beeps and displays a message.
The inlet heater is monitored to avoid overheating. If the heater
remains on at full power for more than 2 minutes, the heater is
shut down. The GC beeps and displays a message.
To recover from either condition, turn the GC off, then on, or
enter a new setpoint.