21 Calibration during disinfection measurements
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21.2.1 Calibration methods for disinfection measurand sensors
End value calibration
For end value calibration, the slope of the sensor is calibrated by means of a
comparison measurement (e.g. DPD method).
Two-point Calibration
With two-point calibration, the zero point and slope of the sensor are calibrated.
This calibration method offers the greatest possible level of accuracy and is par-
ticularly recommended for measurements of low concentration values.
21.2.2 Calibration default settings for disinfection measurand sensors
Before you can perform a calibration, you must first enter the necessary calibra-
tion default settings. The possible settings for disinfection measurand sensors
are described in the following.
Open the calibration default settings:
Device Menu > Calibration > Digital Sensor 1 to 6 >
Calibration Default Settings
NOTE!
The "Calibration default settings" menu appears in the Device menu only if a
user with corresponding user rights is logged in. The "Calibration default set-
tings" menu for a digital sensor is visible for the digital sensor concerned only
when it is linked.
⇨ Chapter 8.2.1 "Log-on/Log-out", page 89
⇨ Chapter 8.2.7 "Digital sensors", page 95
Sample screen:
Chlorine
calibration presets
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