DDZY311 SINGLE-PHASE LONG-RANGE CHARGE-CONTROLLED

Measurement of positive active power, Save the consumption data of last 12 months. LCD display, display number 8 +2; with backlight and power out display function. Time sharing measurement function, 2 time zones,2 days time tables, 4 rates, 12 hours, and two price schemes. Using ESAM module embedded in the meter, realization of safety control functions as secure storage, data encryption / decryption, two-way authentication, access control and encrypted transmission line. With regular freeze, instant freeze, agreement freeze, day freeze, hour freeze functions. Real-time measure voltage, current, active power, apparent power, frequency and other parameters Hardware clock circuit, with temperature compensation to ensure the time error≤1s / d in -25°C +60°Ctemperature range, and the time error≤±0.5s / d in the reference temperature (23 °C). With infrared and RS485 communication interface.