HF scientific MicroTPI Field Portable Turbidimeter (Old) - Manual (Page 13)

5.0 Troubleshooting
The instrument routinely performs self-diagnostics, and will automatically generate
messages to provide you with specific diagnostic information.
5.1 System Warning Messages
Automatic warning messages are generated to provide you with specific diagnostic
information about the instrument. These messages are for your use and do not indicate a
reduction in the performance of the instrument or a failure of any component in the
instrument.
Flashing Battery Symbol: A flashing battery on the display indicates that the batteries
need to be replaced. Under this condition, you should replace the batteries as soon as
possible to ensure that the instrument will continue to function properly. If the batteries
get too low to accurately measure, the instrument will turn off. The instrument might not
turn back on until the batteries have been replaced. See section 6.2 for more information
5.2 System Error Messages
Normally, the cause of an error message is external to the instrument. If an error is
identified the instrument will flash the error block (ERR) along with the error number.
Ref. 22666 (12/04)
Rev. 1.4
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