Ballast-Check 2 User’s Manual
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Appendix B: Error Readings and Warning Messages
Memory Warning Messages
The Ballast-Check 2’s memory starts at 100% allowing for a maximum of 1,000 data points
to be logged. If the memory is more than 90% full and the READ button is pressed, the
following message will display:
“Warning: Memory > 90% Full”
Indicating you reached more than 90% of the total memory allowed. You will be allowed to
continue sampling, but it is highly recommended you stop measuring samples, download
data to your PC, and clear the data log.
When memory is full, the instrument will display:
“Memory Full”
When READ is pressed you will not be allowed to analyze samples until data have been
downloaded and cleared from memory.
Error Readings
When samples are below set blank values, the instrument will result in an Error Reading
indicating that there is no fluorescence associated with the sample being read. When this
occurs, users should read the sample 2 more times for repeatability. Error readings are logged
to memory and will be counted as samples. However, logged values (Risk, Abundance,
Activity) for error readings will display NA indicating that the instrument wasn’t able to measure
the sample.
