Open Electric Tuya Smart three phase Wifi/RS485 energy Meter din rail current voltage power display wifi smart energy meter
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General Description
OPTS238-7 WIFI type multi-function smart energy meter is designed to measure three phase four wire AC active energy and variable parameter. The meter have 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 three phase watt hour meter in IEC62053-21 and its data communication rules obey the requirement 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 -25℃~+55℃,the relative humidity less than 75% and temperature limits between and-40℃~+70℃.
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)”
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Specification and Technical Parameters
|
Meter type |
OPTS238-7 WIFI |
|
Rate frequency |
50 or 60 Hz |
|
Rated current |
1.5(6)A, 5A/CT, 5(60)A ,10(80)A |
|
Rate voltage |
3x230/400V , |
|
Normal voltage range |
90%Un~110%Un |
|
Limits voltage range |
70%Un~120%Un |
|
kWh Accuracy |
Class 1 |
|
R.M.S accuracy |
Class 0.5 |
|
Pulse constant |
See meter |
|
WIFI |
802.11b/g/n ,only support 2.4GHz network , not support 5GHz network |
Basic Features
1, Measuring positive & negative active energy with negative energy accumulated into positive energy,.
2, The meter also display three phase real voltage , real current , real active power , real power factor , real frequency
3, Pulse LED indicates working of meter,Pulse output with optical coupling isolation
4, it can use APP software for data reading and remoter control on/off.
5, display step by step with button
6, it has timing control function , it can set value from APP
Working principles
Three phase voltage and current are sampled from respective sampling circuit and transformed into suitable signal, which is carried into integrated circuit , then the meter output pulse signal in positive appropriation to measured power to drive step-motor counter or LCD counter to realize energy measurement. The meter has energy pulse output for testing with pulse width of 80+20ms
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