KROHNE OPTISENS PAM 2080 EN - Manual (Page 34)

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The probe/immersion holder should be moved/swung in the calibration solution again if possible.
Now press the Cal button on the converter again in order to continue calibration.
“Hold”, “Electrode active”, “Buffer”, “Run time” symbols displayed.
Again, calibration to the 2nd standard lasts approx. 2 minutes. The “Hold”, “Electrode”, and
“Run time” symbols are then displayed.
The converter now calculates the calibration curve
The “Hold” symbol is then displayed.
2-point calibration is thereby completed.
To complete, press the “Measure” button in order to delete the hold function. By doing so you
release the analogue output again.