Product Details: Product name: State test DSZ25 smart meter three-phase three-wire Accuracy class: 0.5S level, 0.2S grade wiring system: three-phase three-wire voltage specifications: 3 * 100V current specifications: 1.5 (6) A, 0.3 (1.2) A, 1 (2) A, 5 (6) A major characteristic: DTZ25 / DSZ25 phase smart energy meter is the use of advanced energy metering dedicated chip, mature communication, digital sampling technology and SMT manufacturing technology, according to the actual electricity situation design, manufacturing, with international advanced level of energy meters. It has a simple structure, high precision, low power consumption, long life and other characteristics, can be used to measure the three-phase AC active energy. The table not only to achieve accurate measurement of active energy, 12 table number is set, you can use the Pocket PC through the RS485, infrared (optional) meter on the table, set the table, and has LCD display, power test pulse output function, automatic power function for months. Main features: 1. Energy Metering Function 1) Measurement parameters: You can measure active, reactive, forward active, reverse active, reactive power forward, reverse, reactive power, four-quadrant power and other power. 2) monitoring parameters: You can monitor each phase voltage, current real value, can monitor three-phase total and A, B, C each phase active power, reactive power, power factor, phase angle, phase, real-time parameters. 3) sharing features: a sharp peak, flat, valley sub-period multi-rate capabilities, can also choose peak, flat, valley sub-time function, short time-sharing multi-rate requirements applicable throughout the country. 4) Data storage: can store 13 months of monthly consumption data per month, you can store on a monthly basis the monthly total, sharp, peak, flat, valley power and other data. Stored voltage, current, positive and negative active and reactive power data. 5) has six types of load curve record. 6) Display: can display consumption data per month last 3 months. 2. The anti-theft function 1) openings recording function to prevent unauthorized changes to the circuit. 2) open wiring cover functions to prevent unauthorized changes to the meter wiring. 3) voltage qualification rate, pressure loss record, to prevent users from illegally removing or truncated voltage wiring, as has occurred, may account for the loss of power by recording the time, provide the basis for retroactive power. 4) loss of current, phase recording function to prevent users from illegally shorting current terminal, as has occurred, the loss can be accounted for by recording a time of electricity, to provide the basis for the retroactive charge. 5) The current imbalance record: can alert the user to the front end of the meter wiring taken power. 6) power-down recording function to prevent users from illegally removing the meter working power, as has occurred, may account for the loss of power by recording the time, provide the basis for retroactive power. 7) Reverse battery included forward power, users, such as the current line reversed, the meter still positive word go, do not have the stealing role. 8) reverse phase sequence alarm, user illegal wiring, the meter will alarm, unless the line connected correctly, otherwise the alarm has been. As the above issue, the meter alarm signs, such as the installation linked meter reading system and meter reading system will appear immediately to the police. The communication function 1) button on the meter, the meter can be found to the total monthly power, voltage, current, power, power factor and other data on the LCD screen. 2) by a handheld infrared meter reading, you can read the electricity meter data. 3) Dual RS485 communication port meter, with the meter reading system, which can copy to read the electricity meter data. And support for DL ??/ T645-2007 multifunction energy meter communication protocol.