Martin Christ Delta 2-24 LSCplus - Manual (Page 69)

Delta 1-24 LSC&
Delta 2-24 LSC&
6 Operation
Version 04/2013, Rev. 1.2 of 20/02/2014 • sb
69
Translation of the original operating manual
In contrast to the pressure increase test in the manual mode, repeated
pressing of the button in the program mode enables the selection of
different variants.
•
Periodic pressure increase test:
The test will be performed periodically during the entire main or final
drying phase. The parameters "Duration test" and "Time between tests"
apply. The maximum pressure increase is limited to 100%, referring to
the actual value at the beginning of the measurement. If the value is
exceeded, the pressure increase test will be aborted in order to prevent
the product from thawing.
• Progress condition:
In the last main drying or final drying section, two pressure increase
tests will be performed and evaluated. The start point will be calculated
automatically by the control system. The parameters "Duration test" and
"Time between tests" apply.
If both tests have been passed, the drying process will be considered
complete at the current conditions. Thus the progress condition for
switching to the next section is fulfilled and the next section will be
initiated.
Otherwise, a process message will be issued, the current section will be
extended, and further pressure increase tests will be executed
periodically until the condition is fulfilled. If the actual value exceeds the
set value before the preselected time has elapsed, the test will be
aborted in order to prevent the product from thawing. If the value is
exceeded, the pressure increase test will be aborted in order to prevent
the product from thawing.
• Periodic & progress condition:
This variant is a combination of the possibilities that are described
above. The test will be performed periodically during the entire main or
final drying phase. The maximum pressure increase is limited to 100%,
referring to the actual value at the beginning of the measurement. If this
value is exceeded before the test time has elapsed, the particular test
will be aborted in order to prevent the product from thawing. If the last
two tests have been passed (amount of pressure increase below the
limit "Pressure increase"), the drying process will be considered
complete at the current conditions. Thus the progress condition for
switching to the next section is fulfilled and the next section will be
initiated.
Otherwise, a process message will be issued, the current section will be
extended, and further pressure increase tests will be executed
periodically until the condition is fulfilled.
• Disabled:
No pressure increase test will be executed during the main or final
drying phase. There will be no evaluation.