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To establish probable cause, you should:
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Review any error/warning messages displayed. They should indicate any problems.
•
Review the reports for trends in data and errors. Use the detailed format to obtain as much information as
possible. An explanation of the report data is covered in this section.
•
Check reagent and Membrane installation dates. Compare the elapsed time to the recommended time.
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Look and listen for problems (fluid leaks, salt build-ups, air bubbles in the sample module, loose connections,
noisy components, etc.).
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Review Section 7.2, to learn more about how you can test individual components of the 2900 Series.
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Use the troubleshooting chart in this section to assist you in identifying the problem, then use the chart to guide
you to a corrective action.
If the problem cannot be resolved, contact YSI Technical Support. When communicating with service personnel, please
indicate the serial number of the instrument. If writing or transmitting an email or FAX for assistance, please include a
thorough description of the problem and copies of printouts, if possible.