LabView 8.2 or higher
VISA 3.0 or higher
(VISA can be downloaded at the National Instruments website at http://joule.ni.com/nidu/cds/view/p/id/2185/lang/en, if not available.)
Copy the folder "MetraHit Energy" and all its content to
(LabView program directory)\instr.lib\
and restart LabView. The new blocks can be found in Instrumentation - Instrument Drivers - MetraHit Energy.
Public - VI Tree.vi shows all blocks sorted by category. Each Block has a small help, visible by CTRL+H and moving the cursor over the block. In Example - Getting Started.VI, a small application is shown for reading a value from the device each 500 ms and changing the measurement function.