They promised me MuchoDinero, but after deductions it turned into microdinero. Ah well. . .
As to what to charge, remember that as a consultant, you have to cover your own overhead. You have to figure that you will be out of work part of the year, that your contractor will likely not cover medical, dental, or life insurance. You will have no paid vacation. Most contractors/consultants charge about twice what a full time employee would make (just salary) in order to cover these things. Save some of it for rainy days.
As to what full time salary to charge, keep in mind that you are talking about knowing how to use a tool - LabVIEW. If the tool that you were skilled at were using a screw-driver instead of LabVIEW, you would say that you can use a screwdriver to build a car (auto worker) or fix a car (mechanic) or tune a TV (electronics technician) or install cabinets (carpenter) or open paint cans (painter). One of these would be the right answer for your experience with a screw-driver and you would be selling yourself and pricing yourself as one of these, not a screw-driver user.
While your employer will pay you to use that tool, they will need to know what you will use it for. Are you going to use the LabVIEW tool as part of your career as a Test Technician, Test Engineer, Software Engineer, Computer Scientist, Electrical Engineer, Electronic Engineer, Mechanical Engineer, Medical Researcher, etc.? Once you figure that out, that should give you a place to start - an occupation to sell yourself as, a salary group to weigh yourself against. All the while touting your vast experience and expertise with this LabVIEW tool.
I think that I have muddied the waters sufficiently for today :-).
Hope this helps,
Bob