APM/3 is an instrument which, thanks to a 32 bit processor supplies the operator with a continuous and complete analysis of the mains power supply. The direct connection for voltages up to 830V (phase-phase) or throught current and voltage transformers makes it possible to use the instrument in any type of installation, (medium and low voltage). Main performances and functionalities:

• Four simultaseously displayable variables
• One page with four variable which are easy to select from those available
• More than 26 displayable pages
• More than 400 displayable variables
• Combination bethween different system variables
• Combination bethween system and phase variables
• Energy measurement function
• Up to 48 partial energy readings(6 digits)
• Four total energy readings (9 digits)
• Rate management: single time, dual time and muli time
• Active and reactive energy readings with separate readings of absorbed and supplied energy
• EEPROM data storage
• Histogram display of the harmonic content relevant to each phase for current and voltage
• Complete harmonic analysis up to the 50th harmonic
• Numerical display as an absolute and percentage value of the single harmonic
• Four quadrant display of the harmonic phase with source detection (generated or absorbed)
• All of the configurations can be selected with the frontal keyboard
• Protective password of the configurable parameters
• Simple and intiutive programming mode
• Program menu available for the modules used: Type of system, CT and VT ratio, displat page, minimum and maximum values, medium power type, energy displays, harmonics, clock, analogue outputs, serial output, digital filter

APM/3 is therefore the solution which allows you to continuously monitor the content of the voltage and current harmonics, along with the other electrical parameters.