C O N T E N T S
Safety Information ...............................................................................1
The Instrument Case ..............................................................1
The Probe ................................................................................1
Package Contents ................................................................................2
Unpacking ............................................................................................2
Installation ............................................................................................3
Probe Preparation .................................................................3
Battery Installation .................................................................3
Intended Use and General Overview ................................................4
Display Description .............................................................................5
Operational Keys Description ............................................................6
Operational Procedures......................................................................7
Measurement Modes - % or mg/L ........................................7
Calibration ..............................................................................8
Temperature .....................................................................8
Dissolved Oxygen ...........................................................8
Saving, Viewing and Deleting Data ......................................9
Downloading Data to a Computer - DO200M Only ........10
Recal Timer - DO200M Only ...............................................10
Date/Time Settings - DO200M Only ..................................10
Sensor Storage .....................................................................11
Short-term Storage ......................................................11
Long-term Storage ........................................................11
Troubleshooting ................................................................................11
Error Messages on Display .................................................11
Opening the Data File with Excel® .....................................12
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