【Function overview】

* Store the latest 12 months active power forward direction overall, peak, smooth, valley electric quantity and active power total electric quantity.
* Save latest 62 hours null point freeze data and 96 integral point freeze data; save latest 2 time zones, time interval records and appointed freeze record;  save latest 3 instant freeze records. 
* Broadcast timing function: the gap between electric meter clock and timing clock within 5 minutes can broadcast timing; otherwise the electric meter would not response. Broadcast timing can check once per day. 
* Built-in clock chip, multi-tariff, which can support 14 time intervals.
* Events recording function: record program, timing, reset, open meter cover, power down, switch out, switch on recording.
* Automatic settling account function: can set the settling account by management system.
* Freeze function: freeze at fixed time, instant freeze, convention freeze, daily freeze, integral point freeze
* Tariff control smart: the electric meter has time division electrovalence and stepwise tariff, which can switch over by the setup.
* Alarm function: set up the alarm amount to remind the user to purchase electricity in time, preventing the unnecessary troublesome to users. 
* Overdraw function: after user consumed the purchased amount but hasn’t purchase more in time, he is allowed to overdraw some amount.
* Preventing corner function: when the electric meter balance amount is more or equal to the recharge threshold amount, it won’t allow this purchased amount.
* Remote power on & outage control function.
* Problem self test function
* Battery under voltage test function
* Have the auto cycle display status and keypad page turning display status. 
* Have backlight big screen character s estive LCD display.
* Can display when power out and activation by the page turning key.
* Telecommunication function: infrared, RS485 and power line carrier telecommunication function.