Panametrics Sentinel LCT, User Manual

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Chapter 9. Troubleshooting
204 Sentinel LNG User’s Manual
9.6 Audit Trail
The
Sentinel LCT
tracks all changes to the programming, meter status (power on, power off), error status, date/time
changes, etc.
9.6.1 Audit Log
The Sentinel LCT's Audit Log will record system activity to a human readable log and store it in persistent memory.
The activity types that generate a log entry include instances of:
•
Power On/Reset
• Parameter Change
• Alarms
• Error
• Calibration Change
•
Default Meter
The use of additional formatting allows for better readability. The meter can store up to 1000 audit and/or event
records. When the log becomes full, the new record will overwrite the oldest record in the Audit trail. This circular log
will enable the user to always view the last 1000 records. The audit log file is downloadable using PanaLink File Reader
software, and is not viewable from the meters display.
9.6.1.1 Power-On/Reset
The Audit log can be used to determine the meter start or reset time. The power-on is usually the first entry in the
audit log file unless it was overwritten (after 1000 entries).
9.6.1.2 Parameter Change
The audit log will monitor all parameters which may have an impact on the flow measurement and will record
changes to them with the following fields:
•
Event/Record Number (Rec No.)
• Date (mm/dd/yyyy)
• Time (hh:mm:ss)
• Source
• Parameter Identification Number
• Parameter Name
• User Level- Authentication (Auth)
• Old Value
•
New Value