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- Mar 13, 2018
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So back on October 16 2019 I purchased the HI 98319 Salinity checker.
I like to double check my equipment every now and again to make sure I can trust it.
My Hanna showed a salinity of 1.025 for tank 1 and 1.024 for tank 2.
Today was the double check day, so I broke out the Milwaukee and it showed a salinity of 1.028, for both tanks. I was like ok, well I have not used the Milwaukee in a while so, I calibrate it, clean the lens, then re-test my two tanks to get the same results of 1.028.
I was like oh (BLANK), broke out the ole manual ATC refractometer and it showed one at 1.030, the second at 1.031. (Have never calibrated nor do I know how to calibrate the ATC Manual unit, but it was always higher than the Milwaukee)
My Hanna still showed a salinity of 1.025 for tank 1 and 1.024 for tank 2.
So I grabbed my last calibration packet for the Hanna and attempted to calibrate it but it went into Error. From that point it no longer would read salinity.
No matter the saltwater tested or Hanna calibration solution I put it in, it just reads 1.000 now.
The Hanna has always read lower than my Milwaukee by .001 consistently at every comparison test I did.
If my Hanna read a salinity of 1.025 the Milwaukee would consistently read .001 higher at a salinity of 1.026. Until today that is.
Hanna could not have been easier to deal with, called the number and the tech walked me through the calibration steps again, said well lets get that looked at and gave me an RMA number.
So it looks like they will stand behind their products.
Good job Hanna.....
Now off to do some small water changes
I like to double check my equipment every now and again to make sure I can trust it.
My Hanna showed a salinity of 1.025 for tank 1 and 1.024 for tank 2.
Today was the double check day, so I broke out the Milwaukee and it showed a salinity of 1.028, for both tanks. I was like ok, well I have not used the Milwaukee in a while so, I calibrate it, clean the lens, then re-test my two tanks to get the same results of 1.028.
I was like oh (BLANK), broke out the ole manual ATC refractometer and it showed one at 1.030, the second at 1.031. (Have never calibrated nor do I know how to calibrate the ATC Manual unit, but it was always higher than the Milwaukee)
My Hanna still showed a salinity of 1.025 for tank 1 and 1.024 for tank 2.
So I grabbed my last calibration packet for the Hanna and attempted to calibrate it but it went into Error. From that point it no longer would read salinity.
No matter the saltwater tested or Hanna calibration solution I put it in, it just reads 1.000 now.
The Hanna has always read lower than my Milwaukee by .001 consistently at every comparison test I did.
If my Hanna read a salinity of 1.025 the Milwaukee would consistently read .001 higher at a salinity of 1.026. Until today that is.
Hanna could not have been easier to deal with, called the number and the tech walked me through the calibration steps again, said well lets get that looked at and gave me an RMA number.
So it looks like they will stand behind their products.
Good job Hanna.....
Now off to do some small water changes



