Thermo Scientific Orion Star User Manual page 42

RDO Optical Dissolved Oxygen Technique
®
3 . In the measurement mode, press
line, press
the calibration .
4 . Wait for the dissolved oxygen reading to stabilize .
a . If an air calibration is performed, the meter will display 100 .0% and
automatically return to the measurement mode .
b . If a water calibration is performed, the meter will display 100 .0% and
automatically return to the measurement mode .
c . If a manual calibration is performed, wait for the mg/L icon to stop flashing
and enter the dissolved oxygen value by pressing
be changed is flashing, press
digit and continue to change the digits until the meter displays the correct
dissolved oxygen value . Once the dissolved oxygen value is set, press
until the decimal point is in the correct location .
d . If a zero point calibration is performed, the meter will display 0 .00 and
automatically return to the measurement mode .
EN-36
until the % sat or mg/L icon is shown and press
Thermo Scientific Orion Star
until the arrow icon points to the bottom
/ to change the value of the flashing
and Star Plus Meter User Guide
™
to begin
until the first digit to