Proline Edition X heating thermostats
YACE0099 / 10/9/2018
61
Each program begins with the segment "Start". It defines at which temperature Seg-
ment 1 is to continue the program. It is not possible to specify a time for the Start seg-
ment. Without the Start segment, Segment 1 would be different depending on the bath
temperature at the start of the program.
For heating thermostats the start temperature must be set above the actual bath tem-
perature during program start together with a sufficient tolerance to allow reaching the
set temperature without cooling (especially if no additional cooling is available). Testing
and watching the process with "Graphical Display" (
7.9).
Edited program example (see dashed curve in the graph on previous page)
No.
T end °C
Time
Tolerance
No.
Pump
Out 1
Out 2
Out 3
Start
30,00°C
-------
0,00°C
Start
-------
-------
-------
-------
1
30,00°C
00:20
0,10°C
1
2
-------
-------
-------
2
50,00°C
00:20
0,00
°C
2
2
-------
-------
-------
3
50,00
°C
00:20
0,10°C
3
2
-------
-------
-------
4
70,00°C
00:20
0,00°C
4
2
-------
-------
-------
5
70,00°C
00:10
0,80
°C
5
2
-------
-------
-------
6
60,00°C
00:30
0,00°C
6
2
-------
-------
-------
7
60,00°C
00:00
0,00°C
7
2
-------
-------
-------
Pump
Menu
End
Insert
Delete
Pump
Menu
End
Insert
Delete
Insert new segment (
Section 7.10.4)
Change segment time or tolerance (
Section 7.10.4)
The field tolerance
(refer to the above program table and the graph below):
It facilitates exact conformance to the dwell time at a specified temperature. Segment
1 is not processed until the bath temperature is within the tolerance range
, so that
the ramp (Segment 2) starts delayed at
.
A tolerance range which is too tight can however also cause undesired delays.
In par-
ticular with external control
the range should not be chosen too tightly. In Segment 5
a larger tolerance has been entered, so that the desired time of ten minutes is main-
tained even with settling action
.
Only flat (slow) ramps should be programmed where necessary with a tolerance
range. Steep ramps which lie close to the maximum possible heating or cooling rates
of the thermostat may be severely delayed by a tolerance range that is too tight (here
in Segment 2)
.
Example for the influence of the Tolerance field input
in case of external bath temperature control:
The setpoint temperature of the programmer is
shown in grey.
The actual temperature in the external bath contain-
er is represented as a continuous line.
°C
80
70
60
50
40
30
20
10
0
20
40
60
80
100
120
t/min
Summary of Contents for PROLINE Edition X P 12 C
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