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MIQ/IDS
Calibration evalua-
tion
Possible calibration
results
ba77277d01
01/2024
Display
* Enter the pH value of the buf
fer solution.
Successfully calibrated.
End of the CAL_CON_1P cali
bration.
4.2.6 Calibration result
After calibrating, the calibration data and current state of the sensor are evalu-
ated automatically. The asymmetry and slope are evaluated separately. The val-
ues must be within the following ranges:
Slope:
- 50 ... -62 mV/pH
Asymmetry:
-45 ... +45 mV
If one of the two values is outside the specified range the calibration is evaluated
as not successful, i.e. the sensor could not be calibrated.
A calibration procedure can have the following results:
Display after calibrating
Measured value display
"----"
Information on the contents and structure of the log book, and how
to call it up, is given in the Log book chapter of the IQ S
system operating manual.
4.2.7 Calibration history
The calibration history contains the data of the active calibration and the chrono-
logical list with the last calibrations.
Explanation
Enter the nominal pH value of the buffer
-
solution according to the displayed tempera-
ture with
<
.
<OK>
The values determined for
metry potential
-
Calibration is finished. Confirm with
The display returns to the measured value
display.
Log book entries
(meaning/actions)
Sensor was successfully calibrated.
Calibration data see calibration history.
Sensor could not be calibrated.
Sensor blocked for measurement.
– Carry out maintenance activities immediately
(see operating manual).
– View the calibration history.
– Check the calibration conditions and calibration
standard.
and confirm with
>
Slope
and
are displayed.
<OK>
ENSOR
pH
Asym
-
.
N
ET
19
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