UMG 104, with a 500 MHz DSP (digital signal processor), is a fully fast and powerful network analyzer. The continuous analysis of the 8 channels with 20 kHz per channel allows the recording of the electrical parameters (more than 800 values), minimum and maximum values, the essential voltage quality values as harmonics (up to 40, each phase with the recognition of the address). On the basis of data that production failures can be avoided, concepts can be developed for example to reduce energy costs, the measures taken and with the UMG 104 the achieved improvements can be monitored and documented. Through modern communication architectures the recorded data is sent to a central location, centrally stored in efficient databases and available for further processing in an open architecture. The easy connection of an available building control system or SPS environment extends the areas of use of the UMG 104.