Technical data – KROHNE SMARTSENS PH 8530 EN User Manual
Page 29
TECHNICAL DATA
6
29
SMARTSENS PH 8530
www.krohne.com
11/2013 - 4002544802 - MA SMARTSENS PH 8530 R02 en
The voltage change of a pH sensor at 25°C / 77°F is around -59 mV for each pH unit. This is also
called the slope of the pH sensor. The slope is temperature dependent and decreases over life
time of the sensor.
To compensate for the temperature dependency of the pH measurement, the temperature of the
medium can be measured and automatically compensated.
Figure 6-2: Optimal slope at 25°C / 77°F
Figure 6-3: Temperature dependency of the slope
.book Page 29 Monday, November 18, 2013 4:32 PM
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