I don't know that model (not surprising, since I don't pay as much attention to the equipment-side of this stuff :)) Generally, all you do is take a few drops of liquid from the fruit, vegetable, or plant that you want to test, drop it onto the glass, put the cover slip down, and read the number through the eypiece.
When dealing with sap from plants, you're hoping to see 12 or higher. When dealing with juice from fruits and veggies, the numbers vary based on the plant (for example, a lemon that brixes at 10 is good, but a plum that brixes at 10 is pretty sad). There's a great yahoo list for learning more about this stuff -- I don't have the link anymore, but just search the yahoo groups for "brix." Or search the web. Pike AgriLabs is a good place to start for info on equipment - http://www.pikeagri.com/tissue.html Judith >>From: <[email protected]> >>Judith- I just found 3 gool looking hand held refractometers in a surplus >>lot. >>Atago N10-E Any easy guide to using them? TJ
