recalibrate digital scale?

[eXiVñorteno::]

I have a digital scale and it reads "out2". I need to recalibrate but I don't know how to. I don't have a manual for it.

Heres a link for it :http://www.everyonedoesit.com/online_headshop/Fuzion_X_Digital_Pocket_Scale__IP100Red.cfm?iProductID=5231
(There is a picture on the left and its the silver 1.)
I need to recalibrate. I already went out and bought new batteries and still same problem.

 

[neros_nemesis]

Remove the batteries and replace them with new ones. Removing the power source should reset it's circuits and set it back to its default