Operating instructions

 The tolerance field enables precise adherence to the delay
time at a specific temperature. Only after the actual tem-
perature 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.
 A tolerance range that has been selected too narrow can also
cause undesired delays. Particularly for external control, the
range should not be too narrow. In segment 5, a larger toler-
ance was entered so that the desired time of 10 minutes can
be adhered to even with transient processes (3).
 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 highly
delayed (4) with a too narrow tolerance range (here in segment
2).
No time specification is possible in the starting segment (no. 1).
The temperature of the first segment is reached as quickly as pos-
sible to switch to segment 2 after reaching the set tolerance.
6.16.2 Selecting a program
Personnel:

Operating personnel
1. Change to the main menu.
2. Select the menu item Programmer .
3. Select one of the available programs.
6.16.3 Creating and editing programs
Note the following:
 If a segment time of >999 h: 59 min is intended, this time must
be distributed among several successive segments.
Fig. 61: Selecting a program
Starting editing
Operation
Variocool 65