Description Of The Calibration Of Ph Sensors - ProMinent DULCOMETER D1Cb Series Instructions For Assembly And Use

Measured Variables and Operating Menus for Potentiometric Sensors
7.5.1

Description of the Calibration of pH Sensors

7.5.1.1 2-Point Calibration
2-Point Calibration
Recommended as the standard method
Calibration of pH sensors with temperature as the correction variable
When calibrating with temperature as the correction variable, the temperature of the buffer solution
must be set in "manual" operating mode before calibration. Refer to
In "Automatic" operating mode, the temperature sensor must be immersed in the buffer solu‐
tion. The calibration values are then calculated whilst taking into consideration the buffer tempera‐
ture.
calibration pH
0.0 mV
zero p. :
slope 25°C
59.16 mV/pH
Permanent display 1
Fig. 35: Calibration of pH sensors
Temperature setting and specification only with correction value
calibration
sensor in buffer
1 !
7.56 pH 33.0°C
calibration
sensor in buffer
2 !
4.12 pH 33.0 °C
calibration
-2.1 mV
zero p.:
25 °C
slope
59.07 mV/pH
calibration
calib. 1 active
please wait !
6.96 pH 33.0°C
calibration
calib. 2 active
please wait !
3.97 pH 33.0 °C
calibration pH
buffer1:
7.00 pH
buffer2:
33.0°C
calibration
buffer1: 7.00 pH
buffer2: 4.00 pH
33.0 °C
= automatic timing
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