Owner manual

RVC 2-25 CD&
7 Malfunctions and error correction
Version 11/2008, Rev. 2.2 of 04/12/2013 • sb
51
Translation of the original operating manual
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7 Malfunctions and error correction
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7.1 General malfunctions
Malfunctions are displayed in the menu "Process & equipment info" (see
chapter 6.5.3.4 - "Process and equipment information"). A sound signal
sounds when an error message is generated.
Eliminate the source of the problem (see the following chapters).
Acknowledge the error messages by pressing the right-hand function
key.
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7.1.1 Error messages
Error Possible reason Correction
No vacuum sensor signal The control unit receives an
invalid value from the vacuum
sensor.
Check the connecting cables
and plug-in connections of the
vacuum sensor. If necessary,
replace the vacuum sensor.
No rotor chamber sensor signal The temperature sensor of the
rotor chamber is disconnected
or defective
Contact the after-sales service
(see chapter 7.2 - "Service
contact")
No rotor sensor signal The rotor temperature sensor is
disconnected or defective
Contact the after-sales service
(see chapter 7.2 - "Service
contact")
No ice condenser sensor signal The data communication link to
the cooling trap is interrupted,
or the ice condenser
temperature sensor is
disconnected or defective
Check the data link between the
rotational vacuum concentrator
and the cooling trap
Lid cannot be opened The rotor chamber is not
aerated completely
Aerate the rotor chamber
completely
Lid contacts error The system has detected an
open lid during evaporation.
The rotor will be stopped
immediately. The lid must be
closed while the rotor is moving.
Check the lid contacts. If
necessary, contact the after-
sales service (see chapter 7.2 -
"Service contact")
Rotor overtemperature The maximum permissible rotor
temperature of 85°C has been
exceeded
If the system does not cool
down, disconnect it immediately
from the power supply. Contact
the after-sales service (see
chapter 7.2 - "Service contact")
Chamber overtemperature The maximum permissible
chamber temperature has been
exceeded
If the system does not cool
down, disconnect it immediately
from the power supply. Contact
the after-sales service (see
chapter 7.2 - "Service contact")