The UMD 807 E is a built-in power quality meter for mounting in the front panel 144x144. It measures 3-phase current and voltage with up to three tariffs in 6-quadrant operation in class 0.2 and thus the work in class 0.5 as well as all usual network sizes, eg harmonics up to the 50th harmonic. It can be used in both 400V, 690V and IT networks. The display can be connected via current transformers N / 5A and N / 1A as well as Rogowski coils (333mV). It maps the power quality according to ISO 50160, IEC 61000-4-30, EN 61557-12 and EN 62053-22. It has a large 512MB memory. The device can be accessed via the Ethernet interface and the front mini-USB port. Internet protocols can therefore also be read in and SPS and building management systems can easily be connected.
The sampling frequency is 6.4 kHz. The device is parameterized or visualized with the ENVIS software. The PQ S module is available as an optional firmware module for evaluating the voltage quality according to EN 50160. The Go firmware module enables power and voltage oscilloscope features and sets trigger events for limit events. The RCS module supports ripple control signal detection.