Options – Martin Christ Beta 2-8 LDplus User Manual
Page 50

50 LDplus Control System
Operating Manual Freeze Dryer BETA 1-8 LDplus / BETA 2-8 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 or 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.
