Yueqing Lovadon Electric Co., Ltd.  

Product Name: Dds238-4W Type Multi-Function WiFi Single Phase Smart Energy Meter Model NO.: DDS238-4W Customized: Customized Certification: CE Type: Energy Meter Measured Signal: Continuous Wave Power Meter Connection: Terminal Theory: Electronic Meter Electric Equipment: Single-phase Usage: Multi-Functional Energy Meter, Watt-Hour Meter, Meter for Industry and Home Use, Standard Electric Energy Meter, Prepayment Meter, Reactive Energy Meter, Multi-rate Watt-hour Meters, Maximum Demand Meter Installation: Direct Connected Display: Digital Rate Frequency: 50 or 60 Hz Rated Current: 5(60)a ,10(100)a Rate Voltage: 120V / 220V / 230V /240V R.M.S Accuracy: Class 0.5 Kwh Accuracy: Class 1 Trademark: LOVADON Transport Package: Standard Export Packing or Packing as Your Require Specification: 76*78*93MM Origin: China Product Description 1. General Description DDS238-4 W type multi-functionsmartenergy meter is designed to measure single phase two wire AC active energy and variable parameter. The meter have RS485 communication port and WIFI communication, it can use APP for remote reading and control on/off. All of its functions comply with the relative technical requirement for class 1 single phase watt hour meter in IEC62053-21 and its data communication rules obey the requirement of MODBUS-RTUand WIFI 802.11b/g/n.It is a long life meter with the advantage of high stability , high over load capability , low power loss and small volume .The meter should be installed in suitable environment with ambient temperature range between -25ºC~+55ºC,the relative humidity less than 75% and temperature limits between and-40ºC~+70ºC.The meter is manufactured complying with international standard IEC62052-11 on "Electricity metering equipment (AC) General requirements tests and test conditions"and IEC62053-21 on "Static meters for active energy (classes 1 and 2)".2.Technical ParametersMeter typeDDS238-4 WRate frequency50 or 60 HzRated current5(60)A ,10(100)ARate voltage120V / 220V / 230V /240VNormal voltagerange 90%Un~110%UnLimits voltage range 70%Un~120%UnkWh AccuracyClass 1R.M.S accuracyClass 0.5Pulse constantSee meterRS485 portMODBUS-RTU protocol, 1200~9600bps,None parity ,default 9600bpsWIFI 802.11b/g/n ,only support 2.4GHz network , not support 5GHz networkLoad current(A)Power factor(CosΦ)Basic error(%)1.0 class2.0 class0.05Ib1.0+1.5+2.50.1Ib-Imax1.0+1.0+2.00.1Ib0.5(lag)+1.5+2.50.8(advanced)+1.502Ib-Imax0.5(lag)+1.0+2.00.8(advanced)+1.0