MONITOR Errors
During the course of operation, Monitor may notice system errors. If it does, it will blink
the RED led on the front panel.
To see the error details, turn on the front panel. They will be the first menu displayed.
ON the command line, type “STATUS” to see any potential errors.
Clearing errors
Some errors can only be cleared by fix the condition that is causing them. For example
‘Time Not Set’ can only be fixed by setting the time.
Most errors can be cleared via the front panel by pressing SET while viewing the error.
On the command line, type “STATUS 0” to clear the errors.
Measurement errors
Measurement errors occur as the system is collecting sensor data. When data from the
sensor contains an error, that error will be logged along with the sensor reading. The
system will note this error until it is rebooted or until the error is cleared. Even if the
error were to occur only once, it will remain in the system until cleared or rebooted.
Sensor failure
This error indicates a problem with a sensor or a setup. This error is recorded for SDI-12
sensors when the SDI-12 sensor does not reply to the measure and to the data commands.
It is also recorded for analog measurements when the MONITOR analog to digital
converter indicates a problem reading the input which could be to the input voltage being
out of range or not being connected (MONITOR will not always be able to tell if an
analog sensor is present).
When the sensor failure error occurs, MONITOR will change the sensor reading to match
the user set
Log Error Value
which defaults to -99999. Such outlandish numbers are
used to attract the user’s attention when viewing the log.
Bad schedule
If this error is present, then the measurement schedule is inappropriate. Please check
settings
Meas Interval, Averaging Time, Sampling Interval,
and
Subsamples
. One of the
following likely took place:
•
The system missed a scheduled measurement (likely due to measurement taking
longer than
Meas Interval
to complete – e.g. system was told to measure every 5
seconds even though the sensor takes 10 seconds to finish a reading
•
A measurement sample took longer to complete than the user set
Sampling
Interval
•
Averaging Time
is set less than
Sampling Interval
•
Equations
are enabled and the
Meas Interval
is short (once a second or once every
two seconds). Monitor can take several seconds to compute a lengthy equation
and will not be able to complete a measurement as quickly.
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