CIRCUTOR QNA-P Series - Manual (Page 26)

Page no. 25
8.2.3.- Incidents File (EVE).
This file automatically stores the type and time of the incident that has occurred.
The QNA-412 is able to detect and record the following incidents, among others:
Battery Off: This will show the time when the QNA-412 stopped working. This
time depends on the value pre-set, because the equipment operates on an internal
battery in the event of a fault with the auxiliary power supply.
Auxiliary power supply On: This indicates the time when the power supply
was connected to the QNA-412.
Auxiliary power supply Off: This shows the time when the power supply to
the QNA-412 was interrupted. At this point power is supplied from the battery.
Setup Changed: This records the time when any change was made to the
equipment's Setup.
Memory Format: The time when the user decided to start the internal memory
on the QNA-412.
Internal memory format forced: There is an error with the internal memory
and the QNA-412 has automatically started all of the memory.
Deleting a file: The time when the user has deleted a file from the internal
memory of the QNA-412. If the first piece of information that appears in the EVE file
is file deleted, this means that the deleted file was an events file.
Changing the time: The date or the time on the equipment has been
changed. It is important to detect this type of event because on many occasions time
gaps between measurements are due to time changes.