1. Summary
DDSF51 Single Phase Static Multi-rate Energy Meter (J) 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 Single Phase Static Multi-rate Energy Meter (J) 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 Single Phase Static Multi-rate Energy Meter (J) 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
Items | Technical Parameters |
Rated voltage | 230V |
Basic current | 5(65)A |
Start current | 0.4%Ib（CL1.0）; 0.5%Ib（CL2.0） |
Frequency | 50Hz |
Accuracy | CL1.0/2.0 |
Running with no load | Yes |
Power burden | ≤1W/6VA |
Normal operating temp. | -30℃~+55℃ |
Limit operating temp. | -40℃~+70℃ |
RH | ≤75% |
Dimension | 190mm×129mm×65mm |
