The pictures aren't great - it's dead easy to use but - to take a picture of what you see !!
Anyway, you should get the jist of it.
Right,The pitch of your blades isn't measured against the ground. It is set against your flybar. Knowing that, follow the steps below.
1. Switch on your transmitter AND SET THROTTLE HOLD ON.
2. Plug your battery in on your helicopter.
3. Turn your blades so they are at 90 degrees to your helicopter, flybar pointing nose to tail.
4. Place your pitch gauge on one of your blades, about half way down.
5. Set your collective stick to max or min depending which setting you want to check.
5. Now you have to 'sight' down the blade and adjust the pitch gauge so the main part of the gauge is in line with the flybar. Now you can read off the scale what the pitch setting of your blade is.
Its as easy as that.
Here are a few pictures to make it easier to understand.
Zero degrees pitch
+10 degrees pitch
-10 degrees pitch
I'll let you work this one out for yourself
I've not been too acurate when doing this (it is Christmas eve
) so my +10 is nearer +11 or 12 and my negative is around -9 'ish but you get the idea - I hope. 
Right, now you have done that and you have set that blade to +10 / -10 you need to take the gauge off that blade and check the other one. Fine tune it to match the first blade. Then, you are ready for tracking - but thats going to be another post.
maz
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