System tests and messages

System tests include tests conducted as part of the warmup sequence, tests of the components that control the system, and fluorometer tests. In addition, warning messages and status messages are to alert you to any parameters that are outside the expected range. The following sections describe the tests, how to use them, and how to interpret the results.

• The warmup tests are designed for daily use, to catch errors and faults that might compromise your measurements. See Warmup tests.

• Controller tests do not need to be run each day, but should be used if you observe that the instrument is not controlling some parameter (e.g., CO2_s) in an expected manner even after passing the warmup tests (i.e. chemicals checked, zeroes checked, etc.), then run the associated controller test for that parameter. See Controller tests.

• When the fluorometer chamber is connected, you can run the Fluorometer tests.