Refractometer stuck at 20c?

[Notsolostfish]

My new brs refractometer. I calibrated it with the solution. But for some reason its stuck at 20c. When i look through it. My tank temp is 25c. My other refractometer change temperature and i can see it. That temperature stuck is affecting the reading of my salinity. Why is it stuck? Im leaving it few mind to adjust temp top

 

[vetteguy53081]

My new brs refractometer. I calibrated it with the solution. But for some reason its stuck at 20c. When i look through it. My tank temp is 25c. My other refractometer change temperature and i can see it. That temperature stuck is affecting the reading of my salinity. Why is it stuck? Im leaving it few mind to adjust temp top

Do you clean it after use?
What calibration solution are you using?

 

[Gtinnel]

It’s been a while since I have used an optical refractometer but I have never seen one that reads temperatures.

 

[Gtinnel]

If you are referring to the 20c at the bottom that I believe is just the temp you are supposed calibrate them at.
Also even if your tank is a higher temp that drop of water will quickly cool down to match the temperature of your refractometer, and I believe most refractometers have some form of automatic temperature correction, although I have no clue how it works.

 

[davidcalgary29]

Good god, I hope it's not another beerfractometer. WHAT have I unleashed???

Then again, an alcohol refractometer would measure brix as well. Maybe that's what it's showing.

 

[Reef.]

I have no clue how it works.

I believe the scale sits on a piece of copper or similar heat sensitive metal that expands or contracts with the temp of the sample, moving the scale, thereby giving the correct temp adjusted reading.

 

[Gtinnel]

I believe the scale sits on a piece of copper or similar heat sensitive metal that expands or contracts with the temp of the sample, moving the scale, thereby giving the correct temp adjusted reading.

Makes sense. Thanks.

 

[KStatefan]

The number does not change it is printed on the scale.