Refractometer

Just received my new refractometer and all I can say is WOW.
I can not believe my eyes so retested and calibrated it again and came up with same info.
When using a swing arm deep 6 SG hand held the reading was 1.023.
With the refractometer it reads 1.026
I wonder how I got along without this device for so long.
I will never ever use those hand helds again.
Thanks J man.

 

I just got mine on Fri from premium aqutics for $50.Looks like a sturdy unit.


Naut the instructions say to use distilled water can I use RO or does it have to be distilled?

 

I went and bought a gallon of distilled water because that is what they called for and I didn't want to mess with the calibration. It was already calibrated though as I did not have to change a thing on mine.
That is where I got mine from (Premium Aquatics) Is yours the blue one?
Whats your SG reading right now?
These are great ain't they!

 

Go to reviews and rate this unit

 

Yeah its the same one you got. You could say you" inspired" me to finally purchase one.
initial reading using swing was 1.023
Refract reading was 1.028 !
Im going to get some distilled the re test ill get back w/results

 

Wow 1.028. If correct or the same after you get the distilled water then you may have saved thousands and thousands of critters in you reef.

 

:-[ same results the refract was dead on. im bringing it down slowly

 

It is a good thing you got the refractometer then. Where is Cowboy ?

 

I dont know why he hasnt been on lately maybe comp down

 

Nautilus

Just so you guys know, these refracts like most of this type, are calibrated at the factory to NaCl, Sodium Chloride. The scale is not a seawater scale but a NaCl scale, which is different than a seawater scale. When you zero in RO/DI water, you are just bringing it back to zero for NaCl. Since seawater has a higher refractive index than NaCl, this refract, like most ( even if it says NSW), is 1 unit to low or .001. SG SG units, so to get the salinity of NSW it needs to read 1 point higher or .001 so 1.027 = 35 ppt NSW and not 1.026 .