(- - - -, editet)
3 50.0
0
0 20 0.1 --- o o o
4 70.0
0
0 20 0.0 --- o o o
5 70.0
0
0 10 0.8 --- o o o
6 60.0
0
0 30 0.0 --- o o o
7 30.0
0
0 0 0.0 --- o o o
The entered tolerance can have a great influence with external bath control.
The graph on the side of the edited profile clarifies the possible overrun of
the actual temperature in the bath vessel (solid line) for the setpoint value of
the programmer (grey background).
Fig. 57: Program tolerance
Note:
n The tolerance field enables precise adherence to the delay time at a spe-
cific temperature. Only once the actual temperature of the tolerance
range has been reached (1), will the following segment be processed so
that e.g. the ramp of the second segment will not be started until after a
delay of 2.
n A tolerance range that has been selected too narrow can also cause
undesired delays. The tolerance range should not be too narrow, partic-
ularly when external control is used. A larger tolerance was entered in
segment 5, so that the desired time of 10 minutes can be adhered to
even with transient processes (3).
n Only flat (slow) ramps should be programmed with a tolerance range as
needed. Steep ramps that are close to the maximum possible heating or
cooling rates of the device may be severely delayed (4) if the tolerance
range (here in segment 2) is too narrow.
V08
Variocool 63 / 97
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