In this video, we’ll discuss the Total Suspended Solids, or TSS, correlation with EXO Turbidity FNU measurements. We will show you how to perform this function in Kor Software, but you can also use the Kor Mobile App.
It is important to note that this correlation is necessary to obtain representative TSS readings with the EXO Turbidity sensor. For the correlation, we will compare the FNU measurements from a deployed Turbidity sensor to the TSS measurements of grab samples from the site. Make sure that the Turbidity sensor is calibrated before deployment. Also, determine the TSS values of the grab samples by an independent method.
Please keep in mind that your TSS results can vary greatly between different locations, seasonality, and other factors. We recommend collecting your samples as close to your deployment location as possible, and you will need to determine for yourself what the best sampling methods will be for your project.
Additionally, turbidity must be measured each time the TSS sample is collected so the readings can be matched up for the correlation. At least two and up to six TSS samples with corresponding FNU value pairs can be entered into Kor Software.
In Kor, navigate to the Instruments and Sensors tab, then select the Turbidity sensor to access the Turbidity Settings. Here you will find where you can enter the FNU measurements along with the corresponding TSS mg/L values of your samples.
The software will derive the relationship between the values you entered and generate coefficients. Once all values are entered, click to apply these coefficients to the sensor. The software will ask if you are sure you want to apply the settings. Click Yes, and the software will confirm and display the coefficients. These coefficients are now saved to the sensor to give you representative TSS readings.
It is important to validate this relationship during seasonal and event-related changes by collecting grab samples for comparison against the sensor’s TSS data.
Please check out our other EXO University videos, and thanks for watching!