 |
DDS846 |
Electronic Smart Meter in DDS846 series is a novel meter developed and manufactured by us with the world's advanced microelectronic chip according to the latest requirements and standards of the national grid, in full range and diversified specifications. The meter has characteristics of high reliability, high precision, long service life and is widely applicable to users in the city and the countryside.
In terms of performance indexes, the meter meets the requirements of the Chinese National Standards GB/T 17215.321-2008, i.e. Special Requirements on Static Active Power Smart Meters - AC Electric Measuring Equipment, and GB/T 17215.211-2006, i.e. General Requirements, Testing and Testing Conditions for AC Electric Measuring Equipment, general technical specifications of single-phase electronic Smart Meters (register), special technical specifications of single-phase electronic Smart Meters (register), general technical specifications of single-phase electronic Smart Meters (LCD) and special technical specifications of single-phase electronic Smart Meters (LCD).
Main Features
Main Features:
(1)Accurate measurement of the electric energy on active power; no need to calibrate over a long period of working;
(2)Conducts data exchange with the meter via RS-485 interface (485 interface optional);
(3)Conducts data exchange with the meter via far infrared interface.
 |
DDS846L |
¢Ù Passive pulse output interface isolated by opto-isolator;
¢Ú Infrared meter reading interface, with communication protocol as per Standard DL/T 645-2007;
¢Û RS-485 communication interface, with communication protocol as per Standard DL/T 645-2007;
(4)Information displayed in LCD or register;
(5)Current sampling by manganin current divider, enhancing the overload capacity of the meter tremendously;
(6)Dedicated Smart Metering chip and surface mount technology (SMT) adopted with advanced process control;
(7)High accuracy, high sensibility, high reliability, wide load, lower power consumption, light weight and easy to install.
Key Components
(1) PCB board and surface mount components are subject to special process treatment, with excellent properties in insulation, against moisture and oxidization;
(2) Fire-retardant ABS shell is used for the Smart Meter and nameplate is affixed on the polycarbonate cover;
(3) Electronic components are installed on the PCB board, and meter cover and terminal cover are provided with lead seal.
Main Technical Parameters
Reference voltage:220 V
Voltage working range: 70£¥Un~+120£¥Un
Current specifications:1.5(6)A (mutual inductor input), 5(20)A, 5(30)A, 5(40)A, 5(50)A, 10(40)A, 10(60)A, 10(80)A, 10(100)A, 15(60)A, 20(80)A, 30(100)A
Reference frequency:50Hz
Accuracy class:1.0 and 2.0 on active power
Start-up current:0.4% basic current
Creeping:Designed with anti-creeping logic
Communication channel: Far infrared communication, RS-485 (optional)
Power consumption: Power consumption on voltage circuit ¡Ü1 W/8VA, power consumption on current circuit ¡Ü2VA
Environmental condition: regular working: -25¡æ~ +60¡æ, extreme working: -40¡ãC ~+70¡ãC
Relative humidity at working: ¡Ü95£¥
Designed service life: ¡Ý10 years
Display:LCD or register
Rated power:>15 kV
Remarks: In case of discrepancy in the specifications of the same model of meters, those of the specific meter shall prevail. |
