Error Handling - Agilent Technologies 490 User Manual

8
Errors

Error Handling

126
During operation a series of events and error messages are
generated indicating start or finishing of certain actions and
procedures as well as smaller and fatal errors somewhere in the
instrument. This section describes how the Micro GC reacts to
these events or messages.
The following error classes as well as the subsequent actions are
available:
Class 0 Internal event. These are events indicating a certain
procedure has started or finished. In no way do they influence
the proper functioning of the instrument.
Class 1 Advisory fault; the instrument continues. These are the
less critical advisory errors not requiring immediate action by
the user. The ongoing run may be minimally effected by it and
thus need not be stopped. Class 1 error messages indicate
certain malfunctions of the instrument. Some errors of this type
keep the instrument from becoming ready.
Class 2 Critical errors for logging; error LED ON. These are
critical errors for which the user needs immediate warning (a
popup or warning may appear in the data system and the Error
LED lights). The run in progress is stopped since its results will
definitely be wrong. Corrective action by the user or instrument
service may be required.
Class 3 Fatal errors for logging; instrument shutdown, error LED and
buzzer ON. These are fatal errors for which the user needs
immediate warning. The Error LED lights. An instrument
shutdown occurs. Corrective action by the user or service is
required.
All errors, regardless of class, are available to the data system
under instrument status (for troubleshooting). All Class 1 and
higher errors are also logged in the instrument's flash memory.
Individual numbers identify all errors; these numbers are built
using the error class and a number. Events are not numbered.
490 Micro GC User Manual