Like the title says...salinity got too high and now slowing bringing it down. I was only using the Hanna for the last few years, but the reading was high (37ppt) I got out the refrac to check.
Hanna was calibrated with their standard that is still within its expiration date. Checked again after calibration and still 37ppt.
Got out the refractometer calibrated to 0 with rodi then with 35ppt calibration solution which is within its expiration date and tested
Salinity was almost 40ppt.
Darn
Granted the Hanna at 37ppt could be 36-38ppt I still don't like the difference.
For now I'm lowering salinity slowly and averaging the 2 readings.
Any suggestions?
TIA
Hanna was calibrated with their standard that is still within its expiration date. Checked again after calibration and still 37ppt.
Got out the refractometer calibrated to 0 with rodi then with 35ppt calibration solution which is within its expiration date and tested
Salinity was almost 40ppt.
Darn
Granted the Hanna at 37ppt could be 36-38ppt I still don't like the difference.
For now I'm lowering salinity slowly and averaging the 2 readings.
Any suggestions?
TIA