Page 1
Contents
1. Introduction ..............................................................................................2
1.1 Aqua-D Display and Controls............................................................................. 2
1.2 Unpacking Information ...................................................................................... 4
1.3 Specifications ................................................................................................... 6
2. Operating Modes ......................................................................................8
3. Dissolved Oxygen Calibration................................................................10
3.1 Calibration.......................................................................................................10
3.2 Dissolved Oxygen Calibration Notes.................................................................11
3.3 Dissolved Oxygen Calibration Messages ..........................................................12
4. Temperature Calibration.........................................................................13
4.1 Calibration.......................................................................................................13
4.2 Calibration Notes .............................................................................................14
4.3 Calibration Messages.......................................................................................14
5. Setting the Salinity Correction Value.....................................................15
6. Battery Saver Function...........................................................................16
7. Initialising the Aqua-D............................................................................17
8. Instrument software version number.....................................................17
9. Troubleshooting .....................................................................................18
9.1 General Error Messages ..................................................................................18
9.2 Dissolved Oxygen Troubleshooting...................................................................19
9.3 Temperature Troubleshooting...........................................................................20
10. Dissolved Oxygen Sensor Fundamentals..........................................21
10.1 Operating Principle ......................................................................................21
10.2 Maintenance Of The Membrane ...................................................................22
10.3 Probe Storage .............................................................................................22
10.4 Notes On Units Of Dissolved Oxygen ...........................................................23
10.5 Equilibrium Conditions .................................................................................24
10.6 Velocity Past The Membrane........................................................................25
11. Warranty..............................................................................................26
