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www.agrowtek.com
| 83 Ambrogio Dr Suite H Gurnee, IL 60031 | [email protected]
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pH Calibration
pH has a standard zero calibration which is performed at pH 7, and a span calibration which can be performed at any value
(typically pH 4 or pH 10.)
Calibration Procedure:
1.
Clean and wipe the pH and temperature probes dry.
2.
Place both probes into pH 7 calibration solution.
3.
Allow the reading to stabilize and set the zero calibration. The reading should now display “7.00.”
4.
Rinse and dry the pH and temperature probes.
5.
Place both probes into pH 4 (or other) calibration solution.
6.
Allow the reading to stabilize. Enter the pH of the calibration solution and set the span calibration.
7.
Calibration is complete. The reading should display the pH of the calibration solution.
Touch Panel
Access the sensor calibration menu from “Main Menu -> System -> Analog Sensors -> Sensor Cal.”
Software
Press the calibration button for the pH sensor to calibrate.
Note: Always set the zero (pH 7) calibration before setting the span calibration.
Press “pH” to access the pH calibration.
Span: To set the span calibration (pH
4/10) first, enter the calibration
solution’s pH, then press “Set Span.”
Automatic Temperature Correction (ATC)
The pH reading is automatically corrected for temperature.
The pH probe must be calibrated with the temperature probe in the calibration solution.
