The XiTRON XT2640 Series Power Analyzers are actually three power analyzers in a single chassis with a single user interface. These are called Virtual Power Analyzers (VPA) or Channels. The XT2640 Series may have up to 4 channels installed, which may be any combination of channel cards and with any combination of available current input options. Channels may be configured in any one (or none) of the 3 virtual power analyzers. Each virtual power analyzer may be configured for up to all channels installed. Each VPA is independently configured for multi-channel wiring configuration, signal filtering, default measurement coupling, display results smoothing and significant digits, VA/VAR combine method, and efficiency grouping. VPAs may optionally be configured to be synchronized to each other. The XT2640 Series boast an impressive array of precision power measurement capabilities, yet the color touchscreen user interface is refreshingly easy to use. Up to 500 harmonics at 400Hz meets Airbus avionics power measurement criteria and the Standby Power measurement meets full requirements of EN50564:2011. Various versatile interfaces including LAN, USB and RS232 and the XiTRON XView Software are provided as standard accessories. The XiTRON XT2640 Series Power Analyzers are the most advanced power measurement platform with an unprecedented range of capabilities.