In-Situ Aqua TROLL 400 Operators Manual - Manual (Page 31)

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5. Select either Calibrate pH or Calibrate ORP.
6. Click Next.
7. 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.
8. Click Next.
9. Place the instrument into the calibration cup and allow time for the temperature to
stabilize.
10. Click OK, to start the calibration.
11. 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.
12. Follow the Wizard to continue through the remaining calibration points.
13. You can save or print the calibration report.
14. Click OK to complete the calibration.
15. Once calibration is complete, remove the instrument from the calibration cup and
rinse both thoroughly with clean water.