How to use DO meters

A dissolved oxygen (DO) meter measures the concentration of oxygen dissolved in water, which is essential for aquatic organisms’ survival. It finds applications in environmental monitoring to assess water quality, ensuring suitable conditions for aquatic life. Additionally, in wastewater treatment plants, it monitors oxygen levels to ensure effective treatment processes.

To take an accurate measurement of these dissolved oxygen meters:

  • First, check that the sensor is clean and free from any debris.
  • Next, submerge the probe into the water sample at the desired depth. Ensure it’s fully immersed and free from air bubbles. Allow the reading to stabilise.
  • Then, read the DO level displayed on the meter. Also, pay attention to the measurement units indicated on the dial.
  • Lastly, compare the reading to acceptable levels for your specific application.

High DO levels may indicate water quality or aeration, while low levels could signify pollution or oxygen depletion.

Essential Maintenance Tips

Just like any other gadget, dissolved oxygen meters also require periodic checkups. So, if you wish to take accurate measurements every day, make sure you:

Clean the DO Meter After Each Use

Rinse the probe with distilled water to remove any residues or contaminants. Use a soft brush or sponge to gently clean the probe surface, avoiding abrasive materials that could damage it.

Check Electrode Proper Functioning

Inspect the electrode for signs of damage or wear, such as cracks or discolouration. If necessary, perform electrode conditioning or regeneration according to the manufacturer’s instructions to maintain optimal performance.

Store the Equipment Properly

Store the DO meter and probe in a clean, dry environment when not in use. Consider using a protective case or cover to prevent damage to the probe during storage or transportation.

Calibrate the Unit Periodically

Regularly verify the calibration of the DO meter using calibration solutions to ensure accuracy. If drift or deviation from calibration occurs, recalibrate the meter following the manufacturer’s guidelines.

Have Access to Spare Sensors

Monitor the lifespan of the sensor & replace it as recommended by the manufacturer to maintain accurate measurements. Keep spare sensors on hand to minimise downtime in case of sensor failure or degradation.

So, now that you know everything about these DO meters, choose one that fits your requirements from Raptor Supplies Limited. Also, we supply these products widely to customers in the UK, Europe, the Middle East and Asia. With our 24×7 chat support, you can also contact us anytime via phone, WhatsApp or email. Also, feel free to check out our dedicated review page to see what our valued customers have to say about our service.