Martin Christ Alpha 2-4 LDplus - Manual (Page 48)

48 LDplus Control System Operating Manual Freeze Dryer ALPHA 1-4 LDplus / ALPHA 2-4 LDplus
5.7.4. Options
The Options menu includes the functions Contrast, Language,
Settings and Service.
5.7.4.1. Contrast
The Contrast menu is used to change the contrast of the LC
display. The contrast has to be adapted to the local light conditions
at the installation site of the freeze-dryer.
5.7.4.2. Language
The LDplus control system can be used in the German, English,
French, Spanish, Polish ior Russian language.
5.7.4.3. Settings
The Settings menu is used to customize the operation and process
management of the control system.
Warm-up vacuum pump
Warm-up time required by the vacuum pump. In case of doubt,
please refer to the operating manual of the vacuum pump. You can
set a warm-up time between 5 and 60 minutes.
Automatic phase change
The system automatically continues with the next phase when the
preselected time is over (timer active).
This applies only to a phase change from:
Freezing Warm-up vacuum pump
Main drying Final drying
Click upon key depression
A brief sound signal can be heard whenever a key is pressed.
High temperature resolution
Temperatures are displayed in the values window with a resolution
of
1 /
10
°C, normally with a resolution of 1°C.