AMR System Smart Electric Meter Single Phase Two Wire RS485 Communication DLMS / COSEM

AMR System Smart Electric Meter Single Phase Two Wire RS485 Communication DLMS / COSEM

Summary:

DDZY150 single phase local fee control smart meter is a intelligent electricity metering product, which suit for measuring 220V/50Hz single phase active AC power. It has independent optical and RS485 interface, and also with standard interface of carrier communication module, which can work with carrier communication module from different suppliers. It can support for fee control function. With advantages of high reliable, high accuracy, long life, wide range and etc, it can widely used in city, country and enterprises where need to measure single phase AC power.

Standard: IEC 62053-21 Electricity metering equipment (a.c.) –Particular requirements –

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.
• Wide voltage range from 154V to 265V, and won’t be damaged even on 418V, which upgrade its environmental suitability. 
• 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 Parameters:

• Start Current: ≤0.004Ib (Direct Mode)
• Defluction: When 115% reference voltage and no current in current circuit, no more than 1 pulse can be made by meter.
• Consumption: Voltage Circuit Consumption(Out of Communication Status) ≤1.5W, 10VA

                                    Voltage Circuit Consumption(Under Communication Status) ≤3.0W, 12VA

                                    Current Circuit Consumption ≤1VA(Ib)

• Working Temperature: -25℃～60℃
• Maximum Working Temperature: : -40℃～70℃
• Maximum Storage and Transportation Temperature: -40℃～70℃
• Relative Humidity: Annual Average＜75%

                                           Month Average 95%

                                           Occasional 85%

• Air Pressure: 63.0kPa～106.0kPa (Under 4000m)
• Normal Working Pressure: 0.9Un～1.1Un
• External Working Pressure: 0.8Un～1.15Un
• Maximum Working Pressure: 0.0Un～1.15Un
• Clock Accuracy: ≤0.5S/D (Reference Temperature 23℃)
• Capacity of Li-Ion Battery: ≥1.2Ah, the working time since power off≥ 5 years.
• Data Storage Period ≥ 10 years
• Life Time ≥ 10 years
• Dimension: 112*160*71 mm
• Weight: 0.8kg
• Pulse Width: 80±20mS, Typical 80mS
• Communication Rate for Optical: 1200bps
• Communication Rate for RS485: 2400bps (Typical Value)

                                                                  600bps, 1200bps, 2400bps, 4800bps, 9600bps (Can be set)

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.