In-Situ Communication Device Kit for the Aqua TROLL 400 and RDO PRO Probe - Manual (Page 10)

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11. Enter the barometric pressure or elevation at which the instrument will be deployed,
if necessary.
12. Click Next.
13. Click OK to start the calibration.
14. When the screen indicates that the calibration has reached stability, click Accept to
complete the calibration, or click to Cancel to return to the previous calibration
values.
Calibrate 0% Oxygen Saturation
1. If you selected to perform a 2-point calibration, you are prompted to set up the
solution for the second point of the calibration.
2. Remove the wet sponge from the cup.
3. Fill the calibration cup to the fill line with approximately 130 mL of fresh sodium
sulfite solution.
4. Completely submerge the RDO Sensor into the solution.
5. Click OK to start the calibration.
6. When the screen indicates that the calibration has reached stability, click Accept to
complete the calibration, or click Cancel to return to the previous calibration.
7. You can save or print the calibration report.
8. Click OK to complete the calibration.
9. Once calibration is complete, remove the instrument from the calibration cup and
rinse both thoroughly with clean water.
Conductivity Sensor Calibration
The conductivity sensor is calibrated with NIST ® -traceable standards at the factory,
which provides a high degree of linearity across the entire operating range of 5 to
100,000 µS/cm. This sensor is capable of meeting its published specifications without
requiring additional calibration by the user. Most commercially available standards can
introduce a larger potential measurement error than the sensor’s initial factory