Max demand value can be zero clearing by meter reader.
Max demand can be set by sliding windows time, demand interval. Factory default:

demand interval is 15mins, sliding windows time is 5min. It can store Max demand data of latest 12 months..

Data store function

The meter can store total active energy, forward/reverse active total energy and time-sharing energy. Also include the reactive forward/reverse total energy and time-sharing energy, four-quadrant reactive total energy and time-sharing energy.
Data restore time is at 0’clock the end of a month or any day of a month from 1~28 on hour.

The meter can store current and previous 12months data.
When energy meter has no power, all settlement –related data should be save less than 10 years, other data preserve less than 3 years.

TOU function

The internal clock circuit of energy meter has time automatic switching function. Calendar, clock and rate can be set and adjustment through RS485, infrared interface. At least 4 tariffs and 12 time interval can be set within a natural day, min time interval is 15 minutes. Time interval can be set over Zero o’clock.

Electricity parameters measurement and monitoring

The meter can measure: voltage, current, active power, reactive power, apparent power,

power factor and frequency of each phase. Also can display the direction of the current and

power. The resolution of frequency is 0.01Hz. the accuracy of Voltage,current,activepower,reactive power and apparent power is 1%.