EDMI Mk3 - Class 0.2S / Class 0.5S Energy Meter

Mk3 - Class 0.2S / Class 0.5S Energy Meter The Mk3 revenue meter is high accuracy meter with extensive in built features for the deregulated market. It is available as a CT connected unit ( 1A or 5A) . Each meter is capable of four-quadrant measurement of one three-phase load. It conforms to IEC 60687 and can be purchased as a Class 0.2S or Class 0.5S accuracy meter. The Mk3 includes support for optical fibre meter to meter communications; and support for quality of supply features such as harmonic analysis, voltage sag and swell logging. • Four quadrant energy measurement • Time Of Use • Load profile • Pulse inputs / outputs • CT only • High accuracy • Remote reading • Waveform capture • Sag and swell analysis ( half cycle resolution) • Quality of supply ( On board harmonic analysis) • Voltages : Nominal : 57 to 240V ( Phase to Neutral) Min. to Max. : 45 to 290V Burden : < 10VA / phase @ Vn ( 3 Phase) ( as per IEC62053-61) • Auxiliary Supply : 110V ( others available on special order) • Current : Nominal : 1 A ( C.T.) | 5 A ( C.T.) Range Standard : 0.05A - 1.2A | 0.25A - 6A Range Extended : 0.05A-4A | 0.25A-20A Short Time Over-Current : 20 times the Imax for 0.5 second Starting Current : < 0.10% of In ( Ib for WC) Burden : < 0.5VA / phase • Measurement Mode : Single Phase ( 3 circuits) 3 Phase 3 Wire 3 Phase 4 Wire • Pulse Outputs : Voltage, Current, Pulse Width, Polarity • Pulse Inputs : Voltage • Temperature Range Operating : -10° C to + 60° C Storage : -25° C to + 70° C • Time Keeping Accuracy( internal) ± 30 sec / month Backup Time : 2 years without power Backup Type : Lithium Battery • Data Storage ( configuration and TOU Load Survey) : FlashRAM, indefinite storage period Battery backed up RAM • Communications : Local : ANSI Type 2 Optical ( standard) or FLAG™ ( IEC 1107) ( option) Remote : Isolated RS485 or RS232 ( DB9 Connector)