My bandsaw is homemade, so I have no tension meter, this is how I set up my blades.
Back off all the guides, have them well out of the way.
Remove the throat plate, you want to give the blade lot of room. Tighten up the blade so it is so so tight, and turn the top wheel by hand, to make sure the blade is tracking on the center of the wheel, once that is done, then close the top cover.
Turn on the saw and watch the blade, usually you will be on the low tension side of things, the blade will flutter, (usually) slowly tighten the blade tension knob, and the blade should stop fluttering, when it stops, I turn mine an extra quarter turn. I then put the guides back in place, don't make them too tight.
If you want, mark the scale on the saw, but I find that often each blade varies somewhat.
The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
William Arthur Ward