Adopted special large-scale integrated circuit and manufactured with advanced SMT process, DT(S)SD22E Three Phase Four(Three) Wire Multi-function Electronic Energy Meter is featured whit high degree of measuring accuracy, reliable and stable performance, long service life, small cubage and low power dissipation and it usually can be used to measure power consumption at different time segment. And its standard infrared communication port and RS485 communication can realize functions of local meter reading, setting, clock setting and period program etc. Functions and Characteristics Positive/negative active energy consumption measurement, Positive/negative reactive energy consumption measurement and four tariff energy consumption measurement during latest 12 months Measurement of maximum demand and meter clearance... Two time zones, four rates, ten time periods. Event record of voltage/current missing, programming, demand clearance, outage etc. Load curve of current, voltage, power, energy. Real time data display: Time, voltage and current. Self verifying and monitoring of power supply, power network, operation situation of meter. Programming and reading can be realized via infra-red and RS-485 ports. Strong sound-and-light alarm function against abnormal incidents . 16units in one carton.
