K244XX Programmable Ashing Furnace
Operation and Instruction Manual
K244XX-Manual
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Setting Step Set Points and Time
Programs are entered as a sequence of ramp and soak steps which define the set point and length of time
that a loop should remain. The ramp and soak units can both be set for hours and minutes, minutes and
seconds or one can be set for hours and minutes while the other is set for minutes and seconds.
Set point entry is only provided when entering a ramp step. If “soak” is selected for the step type, the loop will
remain at the previous set point for the amount of time entered for the step. The set point entered is used as
the target set point for the step, i.e., the set point the control loop will arrive at by the end of the step.
To enter the set point and/or time for a step, touch the time/set point list view at the bottom of the Entry
screen. This will display the “Step Data” screen. Begin by selecting the desired ramp or soak step type
(available selections are ramp, soak, jump and end). The jump and end step types are discussed in the
following sections.
To enter the set point for the step, touch the set point field and enter the desired set point. To enter the step
time, touch the time field to enter in the desired time duration. Time is entered as HH.MM or MM.SS
depending upon the selection chosen on the entry screen. To make time entry easy, the entry will
automatically be formatted into time as the number keys are pressed. To enter a time of 1 hour for example,
you would enter a value of 100 for one hour and zero minutes. To enter a step time of 30 minutes, the time
entry would be made as 30. If the time selection was in minutes and seconds, an entry of 1 minute and 30
seconds would be made as 130.
Since one minute and thirty seconds is also a time of 90 seconds, you can also enter a value of 90. Upon
pressing the ‘Done’ button, the time will be formatted and displayed in the step data list view as 1.30 for 1
minute and 30 seconds.
Ramp Step Entry
Soak Step Entry
