Zero Calibration - novomatics Turbitronic P Operation Manual

Novomatics Manual
standards should be inserted without magnetic stirring bar but the tubes should be closed by
temperature probe.
Go to Measurement/Turbitronic/Calib NTU... Insert the three standards 0, 100 and 250 NTU
and press the respective Set button. Release the dialog with OK for taking over the new
calibration. Release with cancel to keep the actual settings valid.
Figure 13 NTU Turbidity Calibration
Figure 14 Samples NTU Turbidity Calibration

11.5. Zero calibration

Zero calibration is required for sample which are already hazy at ambient. Just insert a typical
sample which is definitely clear at room temperature and press the Zero NTU button. Usually
demineralised water is not suitable because its different optical properties compared to typical
Turbitronic P
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