Aalborg Vortex Insertion User Manual
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Vortex Flow Meters are equipped with programmable Event Log File feature which
is available via digital interface and LCD/KeyPad. The Event Log File menu allows
user assign any of 24 different System and Alarm Events to be recorded with
Date/Time stamp in to flow meter non volatile memory.
System Event List (unmaskable)
Table 5.2
Event Log file can store total up to 511 records. Each record includes date/time
stamp and event code (see Tables 5.1 and 5.2). If event is not masked in the Event
Mask Register, when actual Event occurred, the record will be made in the Log file
and corresponding bit in the internal flag register will be updated (set). The sec-
ond record of the same Event code may occur only if corresponding Event bit was
reset in the flag register (for example if Low Flow Alarm conditions was activated
and flow rate increased above Low Flow Alarm threshold settings).
a) Event Log Status
With this menu selection user may check how many total events are recorded in
the Event Log file. The Overflow counter (OF) indicates how many times Event Log
index was wrapped around back to zero. Pressing Enter key from Event Log Status
screen will allow customer to list and review all recorded events. The Event record
will display Date and Time on the first line of the LCD and Event code on the sec-
ond. Pressing Enter key one more time will momentarily (for 2 seconds) replace
Event code with detailed description of the corresponding event. Pressing UP or
DN button will allow to list all other Events in the Event Log file.
NOTE: Each Alarm Event can be individually masked (disabled) using
Event Log Mask menu selection (see Figure 5.15). If alarm event is
masked (disabled) it will not be recorded in to the Event Log File, even
actual event has occurred. System Events (see table 5.x) can not be
masked therefore will be always recorded in to the Event Log File.
,
Event Number
System Event Description
16
PEZO SENS. FAULT
17
TEMP SENS. FAULT*
18
PRES SENS. FAULT*
19
SERIAL COMM. ERROR
20
EEPROM ACCESS ERROR
21
BATTERY FAILURE
22
POWER ON EVENT
23
PASSWORD EVENT
24
FATAL ERROR