Ecolab Versatronic Manuel D'utilisation page 409

10.2.6.4 Slope calibration (free chlorine pH / temp compensated)
Fig. 81: Conductance chlorine calibration: pH-value input
1 Reading is based on previous calibration values
Fig. 82: To enter the chlorine concentration, tap the button (1)
1. Start the conductance calibration.
Device menu è Calibration è Select universal input è Conductance calibration
2. Clean the sensor and dip it in the test solution.
3. Check the displayed values of the factors pH value and temperature. For both
factors, automatic detections can be independently configured in the default
calibration settings. With automatic readings, you can view but not edit the resulting
factor. Without automatic readings, you need to enter each factor manually.
See Fig. 81. Wait for a stable reading to show and check the displayed pH.
Then confirm with "OK".
4. Enter the concentration value of the test solution. Confirm with "OK". See Fig. 82.
5. The system generates a summary log of the determined calibration values.
Acknowledge the log with "OK". A failed calibration can be aborted at this point and
discarded.
6. Select "Yes" to assume the determined calibration values and log the calibration.
Select "No" to discard them.
2 Tap the button to enter the pH of the test solution
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Device menu
417102269 Rev. 2-08.2020