220V Single Phase Smart Electric Meter Active Energy Measurement Electric Watt Hour Meter

Single Phase Smart Electric Meters Active Energy Measurement High Accuracy Watt Hour Meter Technical Features: Take advanced professional integrated circuit and SMT, hot air reflow soldering and wave soldering as technical design, which can make sure of reliable quality. Take three units isolated power for metering unit, data processing unit and communication interface unit. All the output signals are handled by optoelectronic isolation, which can increase Electromagnetic Compatibility, and also confirm the stable working for metering unit, that will not influence by communication interface. Build in “Watch Dog” design for microprocessor, to promise for the well working of CPU. Triple backup for metering data. The data are safe even in harsh conditions. Fully sealed dustproof and waterproof design, material of cover has excellent flame retardant and anti-corrosion, anti-aging properties. Build in clock circuit with temperature compensation function, the function can also work when power off and get power source from battery, to make sure of the high processing precision of clock. With standard interface of carrier communication module, the meter can work with different carrier modules. With protection card interface for IC card, and also support for CPU card. Main Features 1) Prepayment or credit mode toggle 2) Maximum demand measurement as MD ( Optional) 3) Tamper protection: magnetic immunity, data retention in outage, cover open detection 4) TOU with multi-rate and multi billing cycles 5) IEC 62056-21 and DLMS/COSEM compliant 6) Available for AMR/AMI functionality and remote control from the server side Key benefits a) Build in load switch allows for load management on demand and remote b) Reduce operational and maintenance cost c) Free to choose suitable communication according to local needs d) Revenue protection by flexible consumer contractual control e) Long life time design with easy upgrade features Specifications: Nominal voltage Un 220/230/240 V Limited voltage 70%~120%Un Nominal frequency fn 50-60Hz+5% Basic current(Ib) 5-10A Maximum current(Imax) 60-100A Starting current(Ist) 20mA Active energy constant 1000imp/kWh Accuracy as Active energy to IEC62053‐21 Class1.0 Power consumption in Voltage circuit <2W <8VA Power consumption in current circuit <1VA Operating temperature 25℃ to+70℃ Storage temperature 40℃ to+85℃ Insulation level 4kV rms for 1min Impulse voltage withstand 8kV, 1.2/50 μs Air discharge 16kV Immunity to HF fields   80MHz to 2GHz with load 10V/m 100kHz to 1GHz without load 30V/m Fast transient burst test 4kV Meter shell Protection Rate IP54(IEC60529) Insulation System Classification Protective Class II   Safety precautions: ＊ Use only isolated tools. ＊ Do not connect the meter to a 3 phase - 415V AC - network. ＊ Place the meter only in dry surroundings. ＊ Make sure the used wires are suitable for the max current the meter can measure. ＊ Make sure the AC wires are installed correctly before activating the current/voltage. ＊ Do not touch the meter connecting clamps directly with your bare hands, with metal, blank wire or other material as you will have the chance of an electricity shock and a possible chance for health damage. ＊ Make sure the protection cover is placed after installation and has been sealed. ＊ Installation, maintenance and repair should only be done by a certified electrician. ＊ Never break the seals or open the front cover as this might influence the functionality of the meter. ＊ Do not through, drop, kick or other physical violence to the meter as there are high precision components inside that will break or make the meter measure inaccurate. ＊ Do not mount the meter in area's with harm gas, dust, mildew or insects or on unstable surfaces.