Electricity meter for technological purposes US301EM

US301EM devices are intended for technological measurement of single-phase or three-phase electrical energy. The device operates with single-phase or three-phase star or delta connection, providing measurements of two or three voltages. The devices receive electrical signals from current and voltage transformers and calculate voltage, current, active, reactive and apparent energy jointly and by phases. The calculations are carried out in accordance with ANSI C1.10 and comply with IEC 60687, IEC 61036, IEC 61268, IEC 62053-21, IEC 62053-22 and IEC 62053-23.

The correctness of the measured values is under permanent control. In case of malfunction, LED indicators on the front panel and an alarm relay are activated. The device signals current and voltage peaks (upper current and voltage alarms), decreased phase voltage and decreased power factor. Consumed energy is accumulated in the device memory using four tariffs and is subdivided into received, output, capacitive and inductive energy. The archive contains information for hours (82 hours), days (7 days), months (5 months) and total consumption.