
Troubleshooting
X
TRA
Operator’s Manual
20077/021 US
14-1
Chapter 14: Troubleshooting
General Precautions
To prevent critical situations it is important that all alarms, warnings, and precautions for safe
operation are observed. While setting up the X
TRA
, the operator should always check the unit
thoroughly.
Chapter 1: Introduction and Safety
regarding warnings and cautions related to the use and
management of the X
TRA
equipment.
Supervision and Checks
During the operation of the unit, a number of tests are carried out by the system to check the safety,
reliability, and performance of the equipment. If functional anomalies are detected, suitable safety
measures are immediately taken.
Only one alarm or warning can be active at once. If more than one anomalous situation is detected
simultaneously, the one with the higher priority will determine the machine’s response.
When an alarm or warning is issued, the system enters a safe state (corresponding to the stopped
Ready Screen): the pump and centrifuge are halted, the clamps closed, and the lid lock opened.
Alarms and Warnings
The X
TRA
uses audible and visual signals to inform the user about the occurrence of meaningful events.
Such events may be grouped into three classes:
•
Warnings
– refer to detection of events that can be interesting for the user and in some cases
can imply the interruption of the process in progress. Prosecution of process interrupted by the
occurrence of a warning requires confirmation from the operator.
•
Alarms
– refer to detection of events that imply interruption of the process in progress. Detection
of these events is usually accompanied by suggestions for the operator to perform checks or
actions. Process prosecution after occurrence of this kind of information signals always requires
the operator confirmation.
•
Fatal Errors
– signify detection of unrecoverable hardware anomalies. Technical intervention may
be required to recover the system from a fatal error.
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