pH 170/
pH 296
Calibration
164
Calibrating errors
If the calibration routine is left after an invalid calibration, an error is
output. Instead of the measured value, three lines appear on the display.
The last measured value remains frozen.
−
Press ENTER:
The cause of the error is displayed.
Slope or offset error:
Measure:
In the mV mode, check the Redox potential of
the buffer and the sensor or replace the
measuring chain.
Autoread error (measured value unstable):
Measure:
Repeat the calibration and, if the error is
reoccurs, check the sensor.
