19 Calibrating O-DO sensors
260
19.3.2 Two-point Calibration
Step Action
1 Start the two-point calibration.
Device Menu > Calibration > Digital Sensor 1 to 6 > Two-Point
Calibration
2 To determine the zero point, prepare a water sulfite solution (sulfite
concentration < 2 %).
3 If temperature compensation was not specified in the calibration
default settings, enter the temperature of the test materials used
here manually.
If temperature compensation was specified, the
temperature is determined automatically.
4 Immerse the sensor in the water sulfite solution. Wait until the mea-
sured value displayed stabilizes and then confirm the result of the
measurement by pressing "OK".
5 The device displays the current measured value of oxygen satura-
tion and the test material temperature. The setpoint value for oxy-
gen saturation (0 %Sat) is set automatically by the device. The
user does not need to make any entries here.
6 Wait until the measured value displayed stabilizes and then con-
firm the result of the measurement by pressing "OK"
tap button to enter
temperature
To Next Page
Loading...
