In-Situ Communication Device Kit for the Aqua TROLL 400 and RDO PRO Probe - Manual (Page 13)

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pH/ORP Sensor Calibration
Fill the calibration cup to the fill line with approximately 130 mL of the desired pH or
ORP calibration solution.
Place the calibration cap on the instrument slightly above the restrictor, and place the
instrument in the solution taking care to not force the solution out the top of the
calibration cup.
1. In the Comm Kit Software, select the Sensor Setup tab.
2. Select the pH/ORP parameter.
3. Click Calibrate.
4. Select Calibrate pH, or Calibrate ORP.
5. Click Next.
6. Select a value for the first calibration point. If you intend to perform a 2-point or 3-
point calibration, select the appropriate values as indicated on the label of the
calibration standard.
7. Click Next.
8. Place the instrument into the calibration cup and allow time for the temperature to
stabilize.
9. Click OK, to start the calibration.
10. When the screen indicates that the calibration has reached stability, click Accept to
complete the calibration for that calibration point, or click Cancel to return to the
previous calibration.
11. Follow the Wizard to continue through the remaining calibration points.
12. You can save or print the calibration report.
13. Click OK to complete the calibration.