Shenzhen Londian Electrics Co., Ltd. [China]

Detailed Product Description

1.    Summary

DDSF51-J Single Phase Static Multi-rate Energy Meter is designed for AMR system with professional energy measurement chip, mature multi-rate, digital sampling and SMT Technology. It can measure energy consumption in TOU, LCD display, built-in relay, RS485 port, impulse output etc. Its outstanding feature is the changeable communication module which can match different communication way in different AMR system.

DDSF51-J Single Phase Static Multi-rate Energy Meter can be installed indoors or outdoors with cabinets. Operating climatic temperature ranges from -40 to +70, and relative humidity is equal or less than 75%.

DDSF51-J Single Phase Static Multi-rate Energy Meter conforms to CEI IEC62052-11-2003  Electricity metering equipment (a.c.) General requirements, tests and test conditions Part 11: Metering equipment; CEI IEC62053-21-2003 Electricity metering equipment (a.c.) Particular requirements Part 21: Static meters for active energy (classes 1 and 2) equipment; CEI IEC 62056-21-2002 Electricity metering - Data exchange for meter reading. tariff and load control - Part 21: Direct local data exchange.

2. Functions and Features

2.1 Active energy measurement; No calibration is needed during long working period

2.2 Large Scale Integrated Circuit and SMT technology

2.3 Professional energy measurement LSI with digital multiplier built-in to extend dynamic operating range remarkably

2.4 Excellent error linearity within 5%Ib~Imax

2.5 Built-in high power relay to switch on/off remotely

2.6 MID Certificate: product manufacturing and quality control conforms to EU market requirements

2.7 Match different AMR system easily and seamlessly to achieve prepayment function via network

2.8 Wide operating temperature range-40~+70

3. Technical Specifications