1. Product Brief Introduction

The DTSF7666, DSSF7666 type three-phase electronic

multi-rate watt-hour meter adopts the advanced special energy measuring chips and the multi-rate technology,usingthe date sampling and SMT technology. The product isdesigned and produced according to the practical situation of the dweller. AII the elementsinside the meter have thefeature of long-life,high-reliance. AII the indexes of the  meteraccord withthestandard of GB/T15284-2002 Multi­ rate(Time-sharing) Watt-hour Meter" and GB/T17215.321-2008.Class 1and 2 Static A.C Active Watt-hour Meter , the communication accord with DL/T645-1997 Multi-function Watt-hour Meter communication Rule.

2. Function and Features

- Each of hour periods has different rates (point period,peak period,smooth period and trough period).  Every period of timecan be programmed into 12 periods oftime and the minimum lime intervalis five minutes;

-AII the consumptiondate can be reserved for 12 months;

- The meter adopts the advanced energy measuring chips,highcapability CPU and RTC clock chips;

- Recording the active electric quantity and the electric quantity under every rate,and reserved it;

- High accuracy, sensitivity and reliability,wide overload endurance, low power con-sumption and light in weight;

- Auto accumulate and recording the working lime of the battery;

- Display the present time,rate,total electric power and every rateelectric power;

- Communicate agreement accord with DLlT645-1997;

-It has pulse output communication,pulse width:80ms±20ms;

-It adopts the password and program switch protection,recordingthe latest program time and degree;

- it can setup the meter number,bureau number,time-period,ratedate,time,meter reading time,password and the initial electricpower.

4. Details