Rohde ST411 - Changing the Firing Program: Programming the Heating or Cooling Ramp

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Display screen
Icon
Meaning
Description
150
Heating ramp
Cooling ramp
• The ramp rate in the main display appears as:
⇒ “1°C/h-999°C/h” or
⇒ “FULL” or
⇒ “END”
• This can be altered with the
d & f keys.
• The graphical display indicates whether a heating ramp or a
cooling ramp is being programmed.
⇒ To change the heating ramp to a cooling ramp and vice versa,
see Section 6.4.2.
⇒ To program the ramp rate to “FULL” or “END”, see Section
6.4.3.
600
Soak/Target
temperature
• The next press of the g key displays the soak or target
temperature.
• This can be altered with the
d & f keys.
00. 15
Soak time
• The next push of the
g key displays the soak period in
“hours:minutes”.
• This can be altered in the range 00:00 to 99:59 with the
d
and
f keys.
• The soak period indicator on the graphical display will flash.
2
Indicator in the
segment display
The next press of the
g key increments the segment number digit
and firing values for the next segment can be entered.
End
End program
input
• To mark the end of the program, push the
f key until “END”
appears in the main display.
• To end the program input, press the
f key.
⇒ Program input is also automatically terminated if the maximum
number of segments have been entered.
Note:
• It is possible to exit programming mode without performing all of the steps described above. To do this, wait 20
seconds without pressing a key and the controller will revert to the idle display. All changes are automatically applied
and saved immediately.
• Alternatively, exit the programming mode with the
j key and start the firing process immediately; all changes made
are automatically saved, however.
• The
h or g keys can be used to cycle through the programming steps to correct errors or to exit programming
mode.
• The switch output (event) can be added or deselected by pressing the switch output (event) key while programming
the heating ramp, cooling ramp and soak time (see Section 6.5.).
6.4.2. Changing the firing program: Programming the heating or cooling ramp
When changing the firing program, the heating rate in the firing segment often has to be changed from a heating ramp to a
cooling ramp and vice versa.
Heating ramp:
If the soak/target temperature of the selected segment is higher than or equal to the soak/target temperature of
the previous segment, the controller displays a heating ramp in the selected segment.
Cooling ramp:
If the soak/target temperature of the selected segment is lower than or equal to the soak/target temperature of the
previous segment, the controller displays a cooling ramp in the selected segment.