Randy,
I went through my probes last night as part of regular (irregular in my part) re-calibration checks and procedures. one of them is a Salinity Probe used with my Controller. when I made the speficied calibration solution per your article, it began to make my wheels turn. once I was properly calibrated, it really made my head hurt.
WHY do we use different solutions to calibrate the different pieces of equipment? Specifically, why is my Salinity Probe a tsp of salt in 182 ML but my Refractometer is that same measurement of salt in 166.6ML of water?
the main reason I ask is because my Refractometer reads at what my eye perceives as 35PPT yet my Probe that was just calibrated reads 33PT in my water.
I went through my probes last night as part of regular (irregular in my part) re-calibration checks and procedures. one of them is a Salinity Probe used with my Controller. when I made the speficied calibration solution per your article, it began to make my wheels turn. once I was properly calibrated, it really made my head hurt.
WHY do we use different solutions to calibrate the different pieces of equipment? Specifically, why is my Salinity Probe a tsp of salt in 182 ML but my Refractometer is that same measurement of salt in 166.6ML of water?
the main reason I ask is because my Refractometer reads at what my eye perceives as 35PPT yet my Probe that was just calibrated reads 33PT in my water.