The importance of pH sensor calibration

Experienced pool owners will testify that switching from liquid chlorine/chlorine capsules to salt based chlorinators is life changing. Sanitizing the pool with a salt chlorine generator is the safest, healthiest method to destroy bacteria and organic matters in the water. Magen eco-Energy's chlorinators are safe, effective and economical. With Resilience D Plus, you can focus on enjoying the pool rather than maintaining it since the device is responsible for monitoring and balancing pH and chlorine levels in the pool water independently and automatically. That being said, in order to ensure the pH sensor is accurately reading pool water, it is important to calibrate the pH sensor at the beginning of every season or if there is doubt as to the accuracy of the sensors reading. In this article we will explain, step by step, how the calibration process is performed.

The Resilience D Plus chlorinator has two sensors which are responsible for constantly monitoring pool water quality. The real time values these sensors provide control the chlorine output levels of the salt chlorinator. When the system is initially installed, the sensors are calibrated by the installer. The calibration is performed in order to ensure the data picked up by the sensors from the pool water is accurate. The calibration will be executed by immersing the sensor in two different pH buffer solutions: pH 7.0 and pH 4.0.

How is the calibration process performed?

Before beginning the process, please open both buffer solutions and prepare a glass of clean tap water.
Step 1 - immersing the pH sensor is pH 7.0 buffer solution:
Turn off the control box. Press the M button to enter the calibration mode. Press M once more to begin calibration. The LCD screen will display "Use pH 7".
Remove the pH sensor from the Tee holder and immerse it in the pH 7.0 buffer solution (yellow sachet). Wait a number of seconds for the readings to stabilize. Press M button to confirm readings.
Step 2 - immersing the pH sensor in pH 4.0 buffer solution:
Remove the pH sensor from the pH 7.0 buffer solution. On the LCD screen "Use pH 4" will show. Insert the sensor into a cup with tap water, remove and shake any excess water off. Place sensor in the pH 4.0 buffer solution (red sachet). Wait a number of seconds until values stabilize. Press M to confirm readings. On the LCD screen "DONE" will show, the calibration process has been completed.
Return the pH sensor to its Tee holder. Turn the circulation pump and control box back on. Return the system to normal working mode.


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