three phase multi-tariff energy meter

Main functions (1)Displaying and recording the quantity of electricity and the total amount of high peak, Peak, Plain and valley of this month and last month;(2)Recording and displaying the quantity of electricity resulted from the reverse rotation of the meter; (3)Displaying and recording of total quantity of electricityaccumulated(corresponding to the counter of watt-hourmeter);(4)Recording the real-time interval of the rdal time; (5)Displaying the real-time interval of the rdal tome; (6)Presetting accumulation of the total quantity of electricity, date, time, constant of meter, date of meter copying and parameter of time interval;(7)Pulse signal output and warning display of battery undervoltage.2..Additional functions(for option)(1)Measurement and display of the maximum demand and the appearance date of this month and last month.(2) infrared meter copying and setting by the palm computer.(3) RS-485 serial communication port. (4) other functions required by users.Main characteristics (1)Long service life and excellent performance owing to the industrial grade chip, liquid crystal oscillator ,etc;(2)High in integration, simple in peripheral circuit ,rational in distribution, good in integrity ,small in size and easy to instalation;(3)Higher anti-interference, strong capability of high voltage impulse withatand, and wide range of operating voltage;(4)Protective function with code setting;(5)Function for protecting against electricity-theft with the warming display of electricity-heft.Technical index (1)Error of day timing: ≤±0.3s; temperature factor: ≤±0.1s/(d°C)(2)Operating voltage range: 70% 110% rated voltage(3)Error of collecting signal:≤1*10 (4)Power consumption: < 2W(5)Service temperature: -25 +55°C(6)Storage &delivery temperature:-30 +65°C(7)Bettery capacity: ≥1.2Ah; Storage life: ≥10years(8)Liquid crystal display:≥100,000h