Logging
MONITOR automatically logs data that it collects according to schedule. Data is logged
on a secure flash chip with a capacity of approximately 240,000 entries. An entry looks
like this:
WNDDIR,04/14/2008,16:09:00,7.6655,
Data will
not
be lost if power is removed. Once the log is full, the oldest data will be
overwritten.
Logged data can be downloaded using either a SD card or via RS232. The downloaded
data is in ASCII CSV format and can be easily displayed using Sutron’s GRAPHER
program (downloadable from
www.sutron.com
) or common spreadsheet/word processing
programs.
MONITOR does not log live readings initiated by turning on the front panel.
Additionally, MONITOR logs events such as power up, log download, and setup change.
Each log entry consists of
•
date and time (with a one second resolution)
•
name (e.g. STAGE)
•
measurement reading (optional)
•
measurement quality (optional)
Here are several examples of log entries:
•
STAGE,10/11/2006,10:00:00,3.08,
•
Setup Change,10/10/2006,16:22:33,
•
Reset Powerup,11/09/2006,15:52:17,1,
To help preserve data integrity and reliability, there is not a means of erasing data from
the log.
Occasionally, MONITOR will log events. Events are used to help troubleshoot the data.
The following actions will cause the MONITOR to log an event:
•
Setup change (whenever any setting is changed)
•
Log download (whenever the log is downloaded)
•
Display On and Display off (whenever the user wakes the unit up by pressing a
button)
•
Command line enter (whenever the user connects via the RS232 port)
•
Reset (log contains reset type and count)
•
Errors (such as low battery and sensor failure)
•
Before cal and after cal (logged whenever the user sets the sensor level to record
the value before and after the calibration)
•
Log in events (if password is enabled), including failure to log in.
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