Page 1
Din rail , 3 phase wifi smart energy meter Type: DTS238-7 DTS238-7 WIFI type multi-function smart energy meter is designed to measure three phase four 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.
Page 2
2.2 basic parameters Note: when it happens interrupt power-supply , the meter will not cut off , undervoltage event must last 3s , then it will cut off. 2.2 Technical Parameters 2.2.1Basic tolerance 2.2.2Self-consumption Current circuit is less than 1.5VA / each phase Voltage circuit is less than 2W/8VA each phase 2.2.3Starting current...
Page 3
Under the rated voltage , rated frequency and COS=1 , the meter shall start and continue to register on application of 0.2% In (if CT is used) or 0.4% Ib . 2.2.4Anti-creeping The meter has anti-creeping logical circuit. When 115%Un is connected to the meter and current circuit is cut , the meter shall not create more than one pulse in a stipulated time 2.2.5 Average-life The meter can be used for at least 10 years in normal operation specified in this manual...
Page 4
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.
Page 5
(current wire bottom in and bottom output) Transformer input type connection diagram Noting: for CT input type connection , the power consumed display in register is not fact power consumed. The fact power= the power display in register of meterX CTrate. For example , the power display in the register is 0.5 kWh and the CT is 800/5A, the fact power consumed=0.5 kWh X 160=80kWh 6.2 Installation The meter can be installed on a35 mmDIN rail...
Page 6
9.1 Read command(function code 03) Send frame Receive frame 9.2 Write command(function code 10) Send frame Receive frame 9.3 Energy meter register address Note 1: one register address is store 2 byte data ,so the data length read as 4 byte when data number is 2 . Note 2::you can use ID ID(0x00) to broadcast and got data when you do not know the meter ID.
Page 9
Please scan the two-bar-codes to download the WISEN software . Meter input power When the meter power on , you can push the setting button last 5s , meter enter into the status of waiting for WIFI distribution network and the WIFI led will flash 1s interval . its means meter enter into the status of waiting for WIFI distribution network .
Page 10
Select the Plug You can push the setting button last 5s , meter enter into the status of waiting for WIFI distribution network , then click confirm button Input the WIFI network account and password , then confirmed to next step...
Page 11
if WIFI led light on 5s , light off 0.1s ,it means meter connect the WIFI successfully. Note: WIFI led status 1. flash1s interval : meter enter into the status of waiting for WIFI distribution network 2. light on 5s ,light off 0.5s : meter have connect the WIFI and login in cloud serve APP Menu instruction The meter will display online or offline after you add the device successfully .
Page 12
Control button : used for control on / off of meter output Reset button: used for reset the total active energy to zero Timing button: used for timing control on/off and time delay control on/off 1. time control :you can add the time which is control and which is control off ,if you do not select week , it will save as single time control .
Page 13
Then APP will write the balance kWh into the meter , when the meter balance value used up to zero. The meter will cut off load automatic . when you closed the prepayment function . the meter will recover to normal function using .
Page 14
Management : you can change the name of your meter and delete the meter from your device list...
Need help?
Do you have a question about the DTS238-7 and is the answer not in the manual?
Questions and answers