Will the factory in the dissolved oxygen meter automatically correct it?

The dissolved oxygen meter will not automatically calibrate.

1, calibration function, which can be calibrated and measured after polarization.

2. Zero oxygen calibration: put the dissolved oxygen electrode into the freshly prepared 5% sodium sulfite solution, and perform zero oxygen calibration when the instrument is in the measuring state.

3. Full-scale calibration: Take the dissolved oxygen electrode out of the solution, rinse it with water, carefully absorb the moisture on the surface of the film with filter paper, and put it in the air near the water surface of the container filled with distilled water or in the air, but the electrode surface cannot occupy water droplets. Perform full-scale calibration under the measuring state of the instrument.

4. Salinity calibration. The dissolved oxygen value is related to salinity, so an appropriate salinity value should be selected before measurement. Salinity calibration when the instrument is in measuring state.

5, air pressure calibration, the dissolved oxygen value measured by the instrument is related to the atmospheric pressure value, and the appropriate atmospheric pressure value should be selected before measurement.