Oxygen Calibration; Calibration In Air - Knick Portavo 908 Multi Betriebsanleitung

Calibration

Oxygen Calibration

1) In measuring mode, press the Menu softkey.
2) Select "Calibration" and confirm by pressing enter.
3) Select the desired "Calibration mode" and confirm by pressing enter.
4) Select "Membrane module replacement" if you wish to save a change of mem-
brane or electrolyte in the connected sensor. The digital, optical oxygen sensor
automatically recognizes when its sensor cap has been replaced.
5) The "TAG" menu allows the sensor TAG to be edited.
To do so, set "TAG" to On in the configuration menu (default setting: Off).
6) Perform the selected calibration as described on the following pages.
Follow the instructions on the display.
Note: Calibration is not possible when the device is connected via USB with the
Paraly SW 112 software.

Calibration in Air

(Calibrating the slope in air)
1) Place sensor in air and wait for a stable measured value.
2) Press the Start softkey.
3) Adjust the correct value for "Relative humidity". Then press Continue.
Calibration will be performed.
4) Finally, you can Apply or Discard these values.
Note: To abort calibration, you can press meas at any time.
29
Oxy