Adjusting Turbidity Compensation - Hach NITRATAX sc Manual De Instrucciones

Operation
25. Select Task was succesfully completed. and confirm.
Note: Only NITRATAXeco has a one point calibration which influences the offset.
26. The sensor calibration is completed.

4.6.1 Adjusting Turbidity compensation

1. Take a sample of activated sludge at the measuring location after the first half of the
2. Similar to a standard solution, pour the filtrate into the measuring path of the sensor.
3. Select Standard calibration and measure the filtered sample.
4. Turn the wiper on and add sample until the measured value is stable.
5. Immerse the sensor in the activated sludge tank.
6. Start the wiper several times until a stable result is obtained for the activated sludge.
10
aeration phase. Immediately after sampling approximately 100 mL, filter the sample
using a folded filter.
As an alternative, the measured value can also be determined by a laboratory
measurement (for NO N and NO
–
2
Add the difference mE
filtered
N).
–
3
–mE to the adjusted offset value.
aeration
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