10
DO Calibration in mg/L or ppm Mode
Single point calibration - air-saturated water
1.1
Ensure that the meter shows measurement unit
“
mg/L
”
and you have selected 1 point calibration in the setup menu. Press the
Cal
key, the meter
shows 8.26mg/L/CAL 1.
1.2
Immerse the dissolved oxygen probe into the air-saturated water for 15 minutes. Press the
Enter
key, the meter begins the calibration, the
Calibration icon continuously flashing.
1.3
Wait for the reading to stabilize, the meter automatically shows END. Calibration is completed.
Single point calibration - zero oxygen
2.1
Ensure that the meter shows measurement unit
“
mg/L”
and you have selected 1 point calibration in the setup menu. Press the
Cal
key and the
or
key until the meter shows 0.00mg/L/CAL 1.
2.2
Immerse the dissolved oxygen probe into the zero oxygen solution for at least 10 minutes. Press the
Enter
key, the meter begins the calibration, the
Calibration icon continuously flashing.
2.3
Wait for the reading to stabilize, the meter automatically shows END. Calibration is completed.
2 points calibration
3.1
Ensure that you have selected 2 point calibration in the setup menu.
3.2
Repert the steps above to calibrate the zero point and air-saturated water until the meter shows END.
If you want to exit the calibration, press the
Meas
key.
DO901 Portable Dissolved Oxygen Meter
