Xylem MultiLab 4010-2 User Manual
Page 51
MultiLab 4010-2
Dissolved oxygen (D.O.)
ba76142e01
05/2013
51
3.
Place the D.O. sensor in a solution that does not contain any dissolved
oxygen.
A solution not containing any dissolved oxygen can be prepared by
dissolving approx. 8 to 10 g sodium sulfite (Na
2
SO
3
) in 500 ml tap-
water. Carefully mix the solution. It may take up to 60 minutes until
the solution is free of oxygen.
4.
Start the calibration with <CAL>.
Cal (calibration in water vapor-saturated air) or Comp (calibration via
Comparison meas. according to the Winkler method) is displayed.
The calibration point 1 (0%) is displayed.
5.
Start the measurement with <ENTER>.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parameter flashes.
6.
Wait for the AutoRead measurement to be completed (audio signal).
The display for the second calibration point is displayed.
03.04.2013 08:00
03.04.2013 08:00