An oxygen meter is a fairly reliable and accurate instrument for the determination of dissolved oxygen in any liquid. This equipment works through a probe that captures oxygen, being the very sensitive probe, a series of maintenance processes are recommended to ensure accurate measurements. The electrolyte solution should be kept at the set level and should be replaced periodically.
When using this equipment it is important to avoid air bubbles when the cap is screwed to the probe. It is also recommended that the meter be calibrated periodically in air to reset the values back to 100% (and in zero oxygen solution, where necessary). Following these easy suggestions, the oxygen meter will always remain accurate and reliable.