Heidolph Synthesis 1 - Manual (Page 92)

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10.5 Set temperature gradient
10.5.1 Set values
A temperature gradient for an individual heater zone may be programmed in up to 9
steps. Temperature changes from initial step to next step within a period of time
selected before. Times to be set accumulated progress steps and not sectional
values. (refer to example)
A total of 4 different temperature gradients may be saved.
Hit Set Ramp key. A temperature gradient setting menu appears in display. Cursor
automatically jumps to No X. This is the file name of the previous parameter set. To
select another of the 4 memories, or overwrite a memory, select this memory with the
Value rotating knob.
Move cursor to zone wanted with Select keys. Select zone to be edited with Value
rotary knob. To program all of the 4 zones with the same temperature gradient, hit
Identic key. Display changes from zone X to "Ident".
At this point set cursor on first temperature in table and set value by rotating Value
knob. ( Start-time is “0“ all the time).
Select W
key moves cursor from field to field. Select X key takes you to next
zone automatically when programming is complete.
Set Ramp No X Zone X
Step 1 2 3 4 5 6 7 8 9
Time 0 --- --- --- --- --- --- --- ---
Temp ►0 0 0 0 0 0 0 0 0
Click on more values with cursor and set value with rotary knob. Refer to physical
limiting values for heating and cooling.
Time value of a step not being „---„ , number zero will be counted
as 0°C !
Put a straight line through two values of a sequence (refer to graph)
max. heating rate: 3°C per minute
max. cooling rate in air: 2°C per minute
Examples of a ramp so programmed:
Set Ramp No X Zone X
Step 1 2 3 4 5 6 7 8 9
Time 0 10 100 120 200 250 --- --- ---
Temp 20 40 40 65 65 ►25 --- --- ---
Temperature value of the last step programmed will be maintained until
disconnecting the item from power supply. Item accepts up to 9 steps, less of course
also. To save room in display, only 3 steps are displayed the same time; to have a
look at more steps, use cursor scroll function (Select key). e.g. after steps 1-2-3, you
may scroll to steps 2-3-4 or 4-5-6, etc. To return, hit opposite-sense Select key. Not
needing to program all of the 9 steps, hit Set Ramp key to directly reach the next
zone's programming function. No temperature changes wanted for certain zones,
just enter nominal temperature for the zone concerned in step 1.