CAL pH
Asymmetry
Buffer 2:
A1019
Zero point
Slope
% Slope
Accept with <CAL>
Buffer 1:
Calibr.param. for 25 °C
Fig. 16: Display of the calibration result
CAL pH
Asymmetry in mV
Sensor quality
A1481
Slope in mV/pH
acceptable
good
good
55 56 57 58 59 60 61 62
-60
-30
0
30 60
Fig. 17: Displayed after the key has been pressed
7.3.1.1.1 Selecting the Calibration Process for pH
To calibrate the controller there are three available calibration pro‐
cesses:
n
2-point
n
Sample (1-point)
n
Data input
1.
Continuous display ➨
ð
The Calibration menu is displayed, you may need to
select
[Channel 1] or [Channel 2], depending on the
measuring channel on which the pH measurement is per‐
formed.
Selecting the calibration process
Start Up
36