Model Number

DDSF580

Technical parameters:
1) International standard: IEC61036, IEC62052-11, IEC62053-21
2) Accuracy: Class 1.0, Class 2.0
3) Rated voltage: 110V, 120V, 220V, 230V, 240V
4) Rated current: 1.5(6)A, 5(20)A, 5(30)A, 10(40)A, 10(60)A, 20(80)A
5) Rated Frequency: 50Hz, 60Hz
6) Power loss:
a) Voltage loop: <1W
b) Current loop: <0.3VA
7) Deviation of RTC: ≤0.5s/D (23+/-3 degree)
8) Life span for backup lithium battery: >10 years; continuous operating time: >3 years
9) Pulse output optical couple:
a) External voltage: 5-24VDC
b) Load current: 10-20mA
c) Width of pulse: ≥80mS

Functions:
1) Energy measuring: measures active accumulative consumption energy of total, sharp, peak, shoulder and trough
2) Maximum demand (MD): measures active total MD and occurring time
3) Tariff and time period: four tariff (sharp, peak, shoulder and trough), and one day can be set 12 time periods
4) Parameter programming: can set meter number (address), time period, calendar, RTC, reading date at the end of the month, also can set passwords and starting time for reading energy
5) Communication: reads meter through infrared and RS-485 ports, and communication protocol is in accordance with DL/T645-1997
6) Monitoring function: records operation time of the backup battery, programming times, last programming time, reset times of MD and last reset time
7) Method of display:
a) The displaying content can be set
b) Automatic circle display and interval display functions available
c) Can set interval time and display time for each data
8) Record function of load curve: records load curve of active energy. Has function of broadcast energy freezing