152 Advanced Operation Manual
4 Columns and Oven
Setting the oven parameters for constant temperature
An isothermal run is one in which the oven is maintained at
a constant temperature. For an isothermal run, set Rate 1 to
zero.
1 Press [Oven] to open the oven parameter list.
2 Enter the oven temperature for the isothermal run.
3 Enter the number of minutes (Initial time) that you want
the oven to stay at this temperature. This time is the
duration of the run.
4 If Rate 1 is not already 0, enter zero for an isothermal
run.
Setting the oven parameters for ramped temperature
Single ramp
1 Press [Oven] to open the oven parameter list.
2 Enter a starting temperature (Te mp er atu re).
3 Enter the time (Initial time) that you want the oven to stay
at Tempe ra tur e.
4 Enter the rate (Rate 1) at which the oven temperature is
to change.
5 Enter the final temperature (Final temperature 1).
6 Enter the time (Final time 1) the oven is to hold Final
temperature 1.
7 To end the oven ramp program after Ramp 1, set Rate 2 to
zero.
Multiple ramps
In a multiple- ramp program, Final time for one ramp is also
Initial time for the next ramp. Thus, there is only one Initial
time.
1 Set up the first oven ramp as described in “Single ramp”.
2 Enter the rate (Rate 2) at which you want the oven
temperature to increase for the second oven ramp.
3 Enter the final temperature (Final temperature 2).
4 Enter the number of minutes (Final time 2) that you want
the oven to hold the final temperature.
5 To end the temperature program after the second ramp,
set Rate 3 to zero.
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