YSI Model 52, Operation Manual

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CONTENTS
SECTION 1 INTRODUCTION...................................................................................... 1
1.1 Principles of Operation ..................................................................................................................... 1
1.2 Display and Function Keys ............................................................................................................... 2
1.3 Function Switch ................................................................................................................................ 2
1.4 Power On Self Test (POST).............................................................................................................. 2
SECTION 2 PREPARING THE METER ................................................................................................. 3
SECTION 3 CALIBRATION ..................................................................................................................... 5
3.1 Percent and mg/L .............................................................................................................................. 5
3.2 Determining Calibration Value ......................................................................................................... 5
3.3 Calibration in Air .............................................................................................................................. 6
3.4 Calibration in Air-Saturated Water ................................................................................................... 7
3.5 Calibration by Winkler Titration ...................................................................................................... 7
3.6 Zero Calibration................................................................................................................................ 8
3.7 Resetting the Default Zero Calibration ........................................................................................... 10
SECTION 4 SALINITY ............................................................................................................................ 11
SECTION 5 OPERATION ....................................................................................................................... 13
5.1 Temperature Measurement ............................................................................................................. 13
5.2 Dissolved Oxygen Measurement .................................................................................................... 13
5.3 Measuring Oxygen in Fluids Other Than Water ............................................................................. 13
5.4 Recording to Internal Memory........................................................................................................ 14
5.5 Reviewing Recorded Data .............................................................................................................. 15
5.6 Printing Data from Memory............................................................................................................ 16
5.7 Sending Recorded Data to a Personal Computer ............................................................................ 16
5.8 Erasing the Model 52 Memory ....................................................................................................... 17
SECTION 6 SYSTEM SETUP ................................................................................................................. 19
6.1 Setting the Time and Date............................................................................................................... 19
6.2 Setting Up Autostable ..................................................................................................................... 19
6.3 Setting Communication Parameters ................................................................................................ 21
6.4 Last Digit Suppression.................................................................................................................... 22
6.5 Contrast Adjustment ....................................................................................................................... 22
SECTION 7 PERSONAL COMPUTER INTERFACE.......................................................................... 25
7.1 Writing Your Own Applications Software...................................................................................... 25
SECTION 8 MAINTENANCE AND TROUBLESHOOTING.............................................................. 27
8.1 Batteries .......................................................................................................................................... 27
8.2 Power On Self Testing and Error Display Messages ...................................................................... 27
SECTION 9 MEASUREMENT ERRORS .............................................................................................. 29
9.1 Type 1 Errors: Instrument Components .......................................................................................... 29
9.2 Type 2 Errors: Probe Accuracy ...................................................................................................... 29
9.3 Type 3 Errors: Calibration .............................................................................................................. 30