pH calibration chart:  solid purple line show the expected data to be measured while the purple glyps show the mean and standard deviation of three measurements. Light green shows the percentual error of the measurement mean value compared to the expected.

Calibration date: 22/jun/2022

Conductivity sensor calibration chart;  solid purple line show the expected data to be measured while the purple glyps show the mean and standard deviation of three measurements. Light green shows the absolute error of the measurement mean value compared to the expected.

Calibration date: 22/jun/2022

pH calibration chart;  solid purple line show the expected data to be measured while the purple glyps show the mean and standard deviation of three measurements. Light green shows the percentual error of the measurement mean value compared to the expected.

Calibration date: 22/jun/2022

Conductivity sensor calibration chart;  solid purple line show the expected data to be measured while the purple glyps show the mean and standard deviation of three measurements. Light green shows the absolute error of the measurement mean value compared to the expected.

Calibration date: 22/jun/2022