244 Advanced Operation Manual
8 Auxiliary Devices
To use the cryo trap during a run:
1 Press [Aux Temp #] and scroll to the zone you wish to
control. Press [Enter].
2 Scroll to Te mp era tur e. Press [On/Off] to turn the zone on or
off, as desired (typically, On).
3 Scroll to Cold Trap Temperature. Enter a value and press
[Enter].
4 Press [Run Table].
5 Press [Mode/Type].
6 Scroll to Cryo trap. Press [Enter] to add a cryo trap event
to the run table.
7 Enter a value for the Time: and press [Enter]. Scroll to
Cryo trap cooling and press [On/Yes] to turn it on.
This event sets the cryo trap temperature to the Cold Trap
Temp era tur e setpoint. The trap remains at this temperature
until another event turns it off, or until the run ends.
8 Enter another Cryo Trap event to turn the trap temperature
Off at the desired run time.
This event sets the cryo trap to track the oven
temperature + 10 °C for the remainder of the run.
About Auxiliary Device Contacts
These contacts are controlled by the external valve drivers.
See “The external valve drivers” on page 218.
About the 24V Auxiliary Device Power Supply
This is controlled by the external valve drivers. See “The
external valve drivers” on page 218.
About Auxiliary Columns
Defines up to 6 columns (includes Col 1 and Col 2).
1 Press [Config][Aux Col #] and enter a column number. Press
[Enter].
2 Define/configure the column.
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