Электронная Трехфазный Трехпроводная Многофункциональный E

DSSD520 Electronic Three-phase Three-wire Multi-function Energy Meter Descriptions: DSSD520 three-phase three-wiremulti-function energy meters are designed to satisfy industrial demand, adopting large-scale integration , digital sampling technology and surface mounting technology (SMT). It features stable functions, high precision and easy operation. Conforms to all technical requirements specified in DL/T614-1997. The meter is capable of measuring active/reactive energy and demand in all directions, RS485 port communication, manual and infrared waking during power outage, load record and much more. Functions and Features: 1) Active and reactive energy measurement 2) Max. demand record 3) Voltage loss record 4) Over voltage record 5) Infrared communication 6) Reading during power break 7) Infrared waking up 8) 1Hz second signal output 9) Energy consumption last 12 months 10) Multi-tariff energy measurement 11) Bypass current record 12) Demand load curve record 13) Single RS485 port communication 14) Waking during power break 15) Remote output 16) Data scroll display or key display Basic parameters 1) Applicable standard:DL/T614-1997 2) Accuracy class: a) Active: Class 0.5S b) Reactive: Class 2 3) Reference frequency: 50Hz 4) Potential: with anti-potential logic design 5) Starting current: a) Active: 0.001In (transformer connected) b) Reactive: 0.003 In 6) Service life: >10 years 7) Exterior dimensions: 263 x 175 x 83mm 8) N. W.: 1.5kg Climatic conditions: 1) Normal working temperature: -25 +55°C 2) Limit working temperature: -40 +70 °C 3) Storage and transport temperature: -40 +70 °C 4) Storage and transport humidity: 85% Electric parameters: 1) Normal working voltage: 0.8Un 1.3Un 2) Limit working voltage: 0.7Un 1.3Un 3) Voltage circuit power consumption: 1.4W or 0.8VA 4) Current circuit power consumption: 1VA 5) Voltage of battery for data storing: 3.6V DC parameters: 1) Clock accuracy: daily error less than 0.5s/day (23 °C) 2) Battery capacity: 1200mAh 3) Data storing time after power break: 10 years (using new battery) Technical parameters: 1) Tariffs: 4 2) Time periods: 10 3) Display: LCD 4) Communication baud rate: 300bps 9600bps 5) Communication method: direct local data exchange 6) Communication protocol:DL/T645-1997 Specifications 1) Three-phase four-wire: DTSD520 2) Three-phase three-wire: DSSD520 3) Reference voltage: 3 x 100V 4) Basic (max. ) current: a) 3 x 1.5(6)A b) 3 x 1(2)A c) 3 x 5(6)A