Model Number

DDSF450

DDSF450 type of full yelectronic active energy electricity meter ,conforms to IEC61036 and IEC61038 the meter feature its innovative structure design and reliable electric capabilities ,so it is a ideal option for measuring household electric energy with time of use ,as well as balancing electricity load better
technology data :
1.rated voltage :220v ,
voltage range ,specified operating range :0.85-1.1Un
limit range of operation :0.75-1.15un
2.rated frequency :50HZ, ,starting currnet :0.004Ib
3.power consumption in voltage circuit :≤2wor 2.5VA
4.dimension :164.5*112*71,net weight:0.7kg
5.clock accuracy :dialy timing error less than 0.5s
Main function
1.active energy measuring :
it can measure total energy and energy of every tariff ,the reverse energy is measure and added to the corresponding forward energy ,therenergy measuring range is from 0 to 99999.999kwh,
2. RTC, an external real time clock realizes the timing and TOU including calendar programme and day light saving time setting
3.TOU, control
it can offer 4 set schedules to realize multi TOU control ,the day can be maximally diveded into 10 periods with 4 stariff for each schedule work off days can be also programmed in a week
4.energy record
it can store energy in billing day of each month ,the billing day can be set within 1 to 28 of one month ,it may store history energy data for 12 months all data may be accessed via personal computer PC or hand hold unit HHU
5.display , it can display by LCD indicator during both power supply and power failure ,it supports automactically cylic display mode and button pushing display mode ,display items can be set by user via pc or HHU, if power failure lasts 7 days continuously display will be turned off and can be awaked by infrared controller or pushing button
6. event log
it can record last five times of case opening during normal operation and once of such event in case of power failure ,the other events will be recorded in cluding power down ,programm setting and current reversing ,the toatl happening times of each event plus their respective lastest five stating times and endeing times can all be accessed via pc or hand hold unit HHU