The DIRIS A-30 multifunction meter is a versatile and reliable base unit that operates on an auxiliary supply of 110-400VAC or 120-350VDC at 50/60Hz. It has an accuracy class of 0.5S to IEC62053-22 and offers a front degree of protection of IP52, with a case degree of protection of IP30. This meter is designed for single circuit metering, measurement, and analysis. It can measure various parameters including currents, voltages, frequency, powers, power factors, Kfactor, and temperatures. It also provides metering for active energy, reactive energy, effective power, and hour meter. The DIRIS A-30 meter allows for individual readings up to the 63rd level of harmonic distortion. It features a large backlit multiple-display screen with six hot keys for easy navigation. Additionally, it includes a correction function for TC wiring errors. For added flexibility and functionality, the DIRIS A-30 meter has the capability to add up to four plug-in modules. It is designed for panel mount installation with dimensions of 96x96mm. Overall, the DIRIS A-30 multifunction meter is a comprehensive solution for accurate and efficient electrical measurements in various applications.