DDS238-4 W type multi-function smart energy 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 GB/T17215. 321-2008 and its data communication rules obey the requirement of MODBUS-RTU and 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 .Smart device that helps you to keep track of your power consumption.Energy metre that displays Voltage, Current, Active Power, reactive Power, power factory ,frequency, total Energy kWh on LCD Dispaly.
WIFI led indication, if you push the setting button last 5s, the WIFI led will flash 1s interval ,its means meter enter into the status of waiting for WIFI distribution network . if WIFI led light on 5s , light off 0.1s ,it means meter connect the WIFI successfully.
Impulse led indication: it will flash with different speed according the current load of the meter
Relay led indication: the led light off means relay switch on, the led on means relay switch off .
Down bond: you can push this button to check the different data display , it will reset the resettable active energy to zero when you push this button last 5s ,but total active energy will not reset.
Setting button: if you push the setting button last 5s ,meter will enter into the status of waiting for WIFI distribution network .if you want to reset status of WIFI distribution network, you also can push the setting button last 5s.