Martin Christ RVC 2-33 CDplus - Manual (Page 43)

Rotational Vacuum Concentrator RVC 2-33 IR
6 Operation
Version 08/2009, Rev. 2.1 of 02/12/2014 • sb
43
Translation of the original operating manual
Timer Evaporation
The time can be set between 1 minute and 200 hours. Using the down key
as of the time 00:01 h:m the symbol appears. The timer is deactivated
and the RVC operates continuously.
Timer Heating
The value that is set under “Timer Evaporation” is also used for “Timer
Heating”.
For some evaporation processes, however, it makes sense to reduce the
heating time. In this case, the value “Timer Heating” can be changed. The
value “Timer Heating” is always lower or equal to the value “Timer
Evaporation”.
Temperature
The control temperature can be set between –80°C and +80°C.
NOTE
Because the RVC has no active cooling, it is not possible to reach
temperatures below room temperature. Under certain conditions (e.g. if a
frozen product is loaded) it may be reasonable to choose a temperature
below room temperature.
Vacuum (only if a vacuum sensor is installed)
This set value determines the vacuum in the rotor chamber. The value
range is defined from 1,000 mbar to 0.1 mbar.
Safety pressure (only if a vacuum sensor is installed)
When reaching the value of the safety pressure, the heater for
controlling the temperature of the bucket is started. The heat is supplied as
long as the set value of the saftety pressure is not exceeded. If the value of
the safety pressure increases beyond the maximum limit, the heater will be
switched off.
The set value of the safety pressure is defined at a value range from 1,000
mbar to 0.1 mbar.
• In the case of a set vacuum between 1 and 100 mbar, the set value of
the safety pressure should be 5 mbar higher.
• In the case of a set vacuum between 100 and 1,000 mbar, the set value
of the safety pressure should be 10 mbar above the set vacuum.
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