LinkinReef
Member
I bought a Milwaukee digital refractometer last month that comes with which is a "steamed distilled water solution" and a "seawater calibration validation solution at 1.025"
What I'm confused it this:
-I calibrated it with their solution and then use the validation solution and it was spot on at 1.025.
-Then I used the same calibration solution again and then read a calibration saline solution from sybon and it reads at 1.026.
-I calibrated again with the same Milwaukee validation solution and then read a brand new Pinpoint solution and its reading at 1.028.
At first I thought maybe the Pinpoint solution might have been a bad batch so I bought a second bottle at a different place and I got the same 1.028.
I rinsed with ro/di between each calibration to make sure the sensor was clean. Which one should be trusted?
What I'm confused it this:
-I calibrated it with their solution and then use the validation solution and it was spot on at 1.025.
-Then I used the same calibration solution again and then read a calibration saline solution from sybon and it reads at 1.026.
-I calibrated again with the same Milwaukee validation solution and then read a brand new Pinpoint solution and its reading at 1.028.
At first I thought maybe the Pinpoint solution might have been a bad batch so I bought a second bottle at a different place and I got the same 1.028.
I rinsed with ro/di between each calibration to make sure the sensor was clean. Which one should be trusted?
