1 mathematical relations, 11 appendix – Martin Christ RVC 2-25 CDplus User Manual
Page 68
RVC 2-25 CD&
11 Appendix
68
Version 11/2008, Rev. 2.2 of 04/12/2013 • sb
Translation of the original operating manual
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11 Appendix
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11.1 Mathematical relations
The automatic processes in the “Programmer module” menu (see chapter
6.5.3.2 - "Program administration") are based on the following
considerations:
Fig. 58: Graphical representation of the course of the control setpoint
Calculation of the control set value and of the gradient for the
temperature:
C/min]
[
sec
sec
sec
sec
tion
current
of
time
tion
tion
previous
of
value
set
tion
current
of
value
set
gradient
C]
[
sec
gradient
time
section
elapsed
tion
previous
of
value
set
value
set
control
Example:
Section
Set values
Section time [h:min]
Temperature [°C]
Preceding
...
30
Current
1:00
60
C/min
0.5
min
60
30
min
60
30
60
C
C
C
gradient
After an elapsed section time of 30 minutes, for example, the control set
value for the temperature is:
C
C/
.
C
value
set
Control
t
45
min
5
0
min
30
30
min)
30
(
Calculation of the control set value for the vacuum:
]
[
10
sec
.)
sec
.
(
10
.
sec
(
10
.)
sec
.
(
10
mbar
value
set
control
time
tion
elapsed
section
current
of
time
section
t
prev
value
set
LOG
t
current
value
set
LOG
t
prev
value
set
LOG
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