Derived Channels - - - Use this Excel spreadsheet to get the derived channels VARh, Ah & Wh from the T-VER-E50B2 power meter. Paste the data from HOBOware or HOBOlink into this spreadsheet to then calculate VAR, VA, V, PF, W, A, kWh and kW. For use with the H22-001, ZW-005, ZW-008, or U30 data loggers when using the T-VER-E50B2 power meter.