38 • LDplus Control System Operating Manual Freeze Dryer ALPHA 1-2 LDplus
5.3. Brief Guide - Handling
The LDplus control system is operated via four keys that are
located centrally on the touch-sensitive control panel.
The following functions are assigned to the four keys
:
• Left softkey
& right softkey
Softkeys are keys with dynamic functions assigned to
them. The current key function is displayed next to the key.
Softkeys allow the control system to be operated in a
particularly easy and transparent way.
• “Up” key
& “down” key
The “up” key
and the “down” key are used to select set
values and actual values to be displayed in the values
window. The “up” key
is assigned to the left-hand values
window and the “down” key
to the right-hand values
window. If one of the keys is pressed, the system scrolls
through the available set values or actual values. Inside
the menu, the “up” key
and the “down” key are used to
shift the focus. When parameters are entered, they are
used to change the value.
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