Help my Refractometer is varys from my Hydrometer

All,
I am new to having a refractometer and I am seeing quite a bit of difference in the FG compared to my hydrometer. I zeroed my Refracometer with my RO water. The wort sample was taken from the hydrometer beaker. The wort sample was 66*F. The hydrometer read 1.014 and the refractometer read 1.022. That is quite a diffference am I doing something wrong. I took 3 samples and cleaned it each time. The beer doesn't taste sweet so I am apt to believe the hydrometer.

Joel

what does you hydro show in pure water?

You need to adjust for FG with the refractionmeter. I use BeerSmith, which has a tool that calculates FG from refractionmeter for me. There are websites that can help as well, but I have never looked for them.

You have to correct when measuring FG on a refractometer because of the presence of alcohol. I use Brewzors calculator on my phone.

However, the calculators for alcohol presence requires an input of the original gravity. If you don't know what the OG was, the correction will not work.

adjustment calculator
http://seanterrill.com/2012/01/06/refractometer-calculator/