CONTENTS
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
606035REF-B-YSI-DO200A-DO200M-User-Manual-English.indd 3 12/7/2017 9:45:08 AM