Three-phase Electronic Multi-function Energy Meter

1. Summary DTSD3699/DSSD3699 three-phase four-wire / three-phase three-wire Energy Meter is a new generation multi-function energy meter with carefully optimizing design. It adopts an international well-performed single-chip microprocessor and reliable peripheral circuits and absorbs domestic and foreign software advantages of similar products, with stable and reliable special electronic measurement circuits, IC card technology and advanced SMT technology. 2. Specifications and technical parameters 2.1 Electrical parameters Active energy accuracyclass0.5S,1.0; Reactive energy accuracyClass 2 Reference Frequency 50Hz±5% Reference Voltage 3×100V;3×220/380V Operating Voltage 0.5Un 1.5Un Current1.5(6)A or customized Pulse Constant 16000imp/kWh(active)16000imp/kWh(reactive) Voltage Power Lines Under the condition that the reference temperature, frequency and three phase voltage are all rated value, the active power and apparent power consumption of each voltage circuit is 1W and 3VA. Current Circuit Power Consumption Under condition of basic current, reference temperature and reference frequency, when the basic current of energy meter is less than 10A, the apparent power consumption of each current circuit is no more than 0.2VA; when the basic current of energy meter is more than or equal to 10A ,the apparent power consumption of each current circuit is no more 0.4VA. 2.2 Environmental conditions Reference Temperature 23°C Reference Humidity 40% 60%. -25°C 60°C-Standard operating temperature -30°C 65°C-Extreme work temperature -35°C 70°C-Storage and transport temperature Relative Humidity ≤95% Atmospheric pressure 63.0kPa 106.0 kPa(4000m above sea level and below) 3. Functions Note Various functions described below are summary of all existing features, which can be selected and expanded. Various types of meter functions with different models have some differences, please tell us yours specifically. 3.1 Energy metering and demand measurement functions 3.2 Real-time measurement function 3.3Tariff and Time Interval 3.4 Display function 3.4.1Cycle display 3.4.2 Button display 3.4.3 Free Query display 3.5 Meter reading when power failure 3.6 Records and Statistics Function 3.6.1Voltage failure record 3.6.2 Phase loss record 3.6.3 Current loss event record 3.7 System event record 3.7.1Programming event record Record the latest 10 times programming events. 3.7.2 Maximum demand clear record Can record the clear times number and the maximum demand clear time. 3.7.3 power-on and off event record Record at least the latest 5 times power on and off time. 3.8 Freeze Via RS485 interface can broadcast the freeze command, meter immediately after receiving the freeze command latches the current active power, reactive power, in case RS485 or infrared port call to read. 3.9 Self-test and Alarm function 3.10 Clock Using a special clock chip, can be year, month, day, week, hours, minutes, seconds etc timing, on the reference conditions, the daily timing error is less than 0.5 seconds, a leap year, month can be automatically converted. The clock also has temperature compensation function. Function of the time adjustment with broadcast. 3.11 Comprehensive anti-theft feature Hardware With anti-theft case, plus terminal cover seal, the user can not change voltage electric wires. Not damage the seals, the user cannot press the programming switch, do not press the programming switch, you cannot change the meter parameters or data. Meter cover and terminal cover open events records. (Optional) Software three level password protection. Automatically exit if programming state overtime. Electricity using abnormal information record or warning (reverse phase sequence, voltage loss, phase-off, power-down / power, over voltage etc. events). All parameters, features set, energy, demand clear etc. (except for broadcasting time adjustment) with hardware protection of programming button and software rights restrictions, and all these operations need infrared cable or RS485/RS232 communication device with special maintenance software to achieve. 4. Communication Interface 4.1 Output port provided Optical isolated positive active, reverse active power, reactive power forward, reverse reactive power pulse output. General LED pulse output instructions can be used for meter calibration and working instructions. There is 1 way independent local infrared or far infrared interface, half-duplex communication. The electrical and mechanical properties of infrared interface meet DL / T 645-1997 requirements, following the DL / T 645-1997 agreement, and the default communications rate is 1200bps. 1 or 2-way independent fail-safe circuits with RS485 interface, and electrical isolation within the circuit with power meter inside, half-duplex communication, communication baud rates can be set within 1200,2400,4800,9600 bps, for connecting concentrator or other intelligent terminals. +3.6 V power supply interface, through a special built-in battery to achieve power outage meter reading (Optional) 1Hz clock pulse output interface can be used to test the accuracy of the clock. 4.2 Other optional output interfaces Demand cycle detect signal output (optional) Time interval conversion signal output (optional) Alarm signal output (optional) Control signal output (optional) etc. The actual number of output terminals varies depending on models. Optional output port number is restricted by terminal number, may not provide all the ports, and the specific port terminal situation refer to the meter wiring diagram.