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2.4 When the dissolved oxygen reading has stabilized, the screen will
show "Calibration Point 8.26 mg/L", the meter prompts you to
continue with second point calibration.
2.5 Place the electrode into the air-saturated water for 10 minutes
and stir gently. Press the
Enter
key to begin the calibration.
2.6 When the dissolved oxygen reading has stabilized, the meter will
return to the measurement mode. Calibration is completed.
DO Calibration in % Saturation Mode
3.1 Ensure that the meter is in % saturation mode and you have
select the 1 point calibration in the setup menu.
3.2 Press the
Cal
key, the screen shows "Calibration Point 100.0%".
3.3 Hold the dissolved oxygen electrode in the air at 100% relative
humidity or place the electrode into the air-saturated water for
10 minutes. Press the
Enter
key to begin the calibration.
3.4 When the dissolved oxygen reading has stabilized, the meter will
return to the measurement mode. Calibration is completed.
2 Points Calibration
4.1 Ensure that you have selected 2 points calibration in the setup
menu.
4.2 Press the
Cal
key and the
key, the meter shows "Calibration
Point 0.0%".
4.3 Place the electrode into the zero oxygen solution for 10 minutes
and stir gently. Press the
Enter
key to begin the calibration.
4.4 When the dissolved oxygen reading has stabilized, the screen will
show "Calibration Point 100.0%", the meter prompts you to
continue with second point calibration.
4.5 Place the electrode into the air-saturated water for 10 minutes
and stir gently. Press the
Enter
key to begin the calibration.
4.6 When the dissolved oxygen reading has stabilized, the meter will
return to the measurement mode. Calibration is completed.
To exit the calibration without saving changes, press the
ESC
key.
Viewing the Calibration Log
5.1 Press the
MR
key, the screen shows a Data Log Menu.
5.2 Press the
Enter
key to view the calibration report.
5.3 Press the
ESC
key to return to the measurement mode.
If the meter is not calibrated, the calibration report will be unavailable.
Temperature Calibration
1. Place the dissolved oxygen electrode in a solution with a known
accurate temperature and wait for the reading to stabilize.
2. Press and hold the
° C
key to enter the temperature setting.
3. Press the
/
key to modify the temperature value, press the
Enter
key to save.