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China utilities information management system



Name:DDSD71Single-phase Smart Energy Meter
Output Power: 50mW
Receiver Sensitivity :-113dBm
Transmission Distance: 200m
Dimension: 160mm×112mm×71mm
Downloads Name Date

DDSD71Single-phase Smart Energy Meter is a highly advanced Smart Meter to measure Single-phase AC active/reactive energy with frequency of 50/60Hz. It has various sophisticated functions to realize Smart Measurement& Management of energy, with features of high accuracy, excellent sensitivity, good reliability, wide measurement range, low consumption, solid structure and nice appearance, etc.


Technical Parameters

¨         Rated Voltage(Un):110V, 120V, 220V, 230V, 240V

¨         Operation Voltage:70%Un~120%Un

¨         Nominal Current:1A,5A,10A,20A

¨         Maximum Current:60A,80A,100A

¨         A wide current range of 1(80) A is optional under special requirements.

¨         Rated Frequency:50Hz, 60Hz

¨         Power Consumption:Voltage Circuit≤1W/10VA

Current Circuit≤1VA

¨         Accuracy Class:1.0, 2.0

¨         Meter Constant(imp/kWh):800, 1600, 3200, 6400

¨         Normal Operation Temperature:-25~70

¨         Relative Humidity: ≤95%



Main Functions

¨         Complying with standards of IEC62052-11& IEC62053-21.

¨         Single-phase Two-wire or Single-phase Three-wire options.

¨         Measuring& storing forward/reverse energy.

¨         Multi-tariff measurement function(optional).

¨         Prepayment function with CPU card(optional).

¨         Calendar& Timing function.

¨         Various anti-tampering functions.

¨         Measuring& displaying voltage, current, power and power factors, etc.

¨         Recording all events including programming, power failure& tampering, etc(optional).

¨         Freezing all data in timed, instant, pre-set, daily& hourly mode, etc.(Programmable).

¨         Auto-scroll displaying and/or manual-scroll displaying(Programmable).

¨         Backup battery for displaying energy under power-off situation.

¨         Internal or external relay to realize load control locally or remotely.

¨         Communication:with ports of RS485, infrared, PLC and/or M-bus, etc.

¨         Communication protocol:DL/T645-2007, IEC62056-21/DLMS, etc(optional).

¨         Capable of being integrated into LINYANG′s AMI(Advanced Metering Infrastructure) system.

¨         Reactive energy measurement is optional.

¨         DLMS Certificate available.

Wire Connection Modes


Other connection modes are customizable.


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