I'd like to recalibrate my salinity probe.
When I got the Apex unit and was calibrating the first time, I wiped things off with paper towel because I couldn't get it to get in proper range for the dry part of the calibration (i.e., before putting in the solution). I don't recall whether the probe was covered with a cap and solution, but I think it was which is why I couldn't get the process to proceed initially; the paper towel, however, left lint on the sensor, so I'd like to rerun the calibration. (This is particularly because re-calibrated refractometer shows on the order of 31 or 32 ppt whereas the Apex is trending at 35-36......).
So, to prepare for recalibration, should I just swirl the probe around in some clean RO water then shake off and allow to air dry?
Thanks
When I got the Apex unit and was calibrating the first time, I wiped things off with paper towel because I couldn't get it to get in proper range for the dry part of the calibration (i.e., before putting in the solution). I don't recall whether the probe was covered with a cap and solution, but I think it was which is why I couldn't get the process to proceed initially; the paper towel, however, left lint on the sensor, so I'd like to rerun the calibration. (This is particularly because re-calibrated refractometer shows on the order of 31 or 32 ppt whereas the Apex is trending at 35-36......).
So, to prepare for recalibration, should I just swirl the probe around in some clean RO water then shake off and allow to air dry?
Thanks