Manual Cleaning Best Practices

This article summarizes important things to keep in mind when manually cleaning your Zirkon® DIS and/or your Zirkon® DIS Total sensors.

Manually cleaning your DIS sensor(s) is required before calibration. A manual clean ensures that the sensing electrodes are free of surface contaminants such as metal deposits, biofilms, or particulate matter. A dirty electrode cannot provide a reliable measurement! You can learn more about how to clean and calibrate your Zirkon® DIS or your Zirkon® DIS Total sensor by clicking on your respective sensor link.

There are some important things to keep in mind when manually cleaning your sensors. One of the most important things to consider is your choice of cleaning agent. We recommend using an abrasive powder detergent such as Comet® Cleaner or other similar detergents. A powdered detergent removes surface contaminants without damaging the delicate electrode materials. You can watch the video below to see best practices manual cleaning in action.

Zirkon DIS Sensor Cleaning

We do not recommend using cleaning products that are advertised to remove rust or lime buildup. These cleaners are highly corrosive and can permanently damage the electrodes. If you are unsure if the cleaner you have should be used on your sensors, please contact a Kuntze representative or submit a ticket.

Another thing to keep in mind is making sure to completely and thoroughly rinse any cleaning agents off your sensors before installing them into the flow cell. Many powdered detergents contain bleach which, if not completely rinsed off the probe, could provide a false high reading during calibration and impact the measurement. Be sure to completely rinse the electrode surfaces as well as the small ceramic junction towards the bottom of the sensor. After rinsing, lightly dab the sensor with a paper towel to ensure all detergent has been removed, then give the sensor one final rinse. You may then reinstall the sensor and allow it to polarize for 15-30 minutes before calibration.

A good manual clean followed by a good calibration is the key to a reliable and stable measurement. Set your system up for success by following these best practices guidelines.