Correct sensor operation
–
Correct measuring, control and metering is only possible if the sensor is working per‐
fectly
–
Refer to the sensor's operating instructions
Tab. 13: Valid calibration values
Evaluation Zero point Slope
Very good -30 mV … +30 mV 56 mV/pH … 60 mV/pH
Good -45 mV … +45 mV 56 mV/pH … 61 mV/pH
Acceptable -60 mV … +60 mV 55 mV/pH … 62 mV/pH
Continuous display ➨
CAL pH
Calibration process
A1023
Zero point
Slope
Last calibration
CAL setup
continue with <CAL>
06/05/2013
14:26:07
Sample (1-point)
Buffer temperature
Manual
Fig. 43: pH sensor calibration (CAL)
1. Continue with
2. Take a water sample at the in-line probe housing and, using a suitable method (measuring
strips, hand measuring instrument), measure the pH value of the sample
Calibration
90
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