The Valhalla Scientific Inc. 2300 Series of Power Analyzers provides true RMS (AC+DC) measurements of voltage up to 600 volts, current up to 100 amps and power up to 60 kilowatts per phase. The maximum voltage and current input limits may be extended through the use of current and/or potential transformers. Nearly every conceivable power measurement application is discussed in later sections of this manual. In addition to the versatility of connections, the 2300 Series boasts an optional computer Interface available reduced voltage ranges for greater resolution, high accuracy and excellent frequency response. Recently added to the list of options available for the Model 2301 is the Valhalla Scientific Inc. Model 1000A High Current Measurement System which enables the user to directly measure up to 1000 amps of current with many times the accuracy of a clamp-on type current transformer.