The UMD 710A is a compact high-end power quality measurement device designed for mounting on a DIN rail. It measures 4-phase current and voltage with up to 3 tariffs in 4-quadrant operation with a class accuracy of 0.05, and thus operates in class 0.2s, as well as all common power parameters, such as harmonics up to the 128th. The 5th connection allows for continuous measurement of fault currents. The device represents power quality according to EN 50160, EN 61000-2-2, EN 61000-2-4, and EN 61000-2-12, and is certified to Class A. It features a large 512 MB memory. Access to the device is possible via the Ethernet interface, and live measurement values can be viewed through the associated web server using a web browser. This also allows for the integration of internet protocols such as NTP, making it easy to connect PLC systems and building management systems. Digital inputs/outputs and a serial RS485 interface are integrated. With the firmware module GO, oscilloscope functions for current and voltage are activated, and trigger signals for limit events can be set. The software module PQ A continuously records and evaluates voltage quality. Special feature: color display.