The F27 harmonics and power clamp provides the functions of an ammeter clamp, a voltmeter, a single and balanced triple-phase wattmeter and a harmonics measurer. The F27 functions on AC + DC current.
FEATURES
- True RMS. 
 - Intensity: 1000A and 1500A peak
 - Voltage: 600V and 1500V peak
 - Power: 600kW, VA or var.
 - Power factors and power shift.
 - Special measurements on transformers in the presence of harmonics.
 - Harmonics distortion parameters, rank by rank, up to the 25th rank
 - Large backlit display and 3 reading levels(3x10000cts) 
 - RS 232 optical output for processing results on a PC or printer
 - "C.A TRANSFER" software under Windows
 - IEC 1010-2-032 (600V- Cat III).