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Micro Embedded Electrical Parameter Sensor
The sensor can be embedded in the appliance to measure the voltage, current, power and power consumption of the appliance in real time. The appliance can evaluate the working condition through the analysis of real-time electrical parameters.
Industry applications: electrical energy metering sockets, smart switches, household appliances, energy-saving monitoring and other electrical products and other electrical monitoring products.
Features:
- Meet the measurement standards in the EV charging pile identification specification JJG1148-2018 and GB_T_17215.321-2008.
- With MODBUS-RTU protocol.
- Measure AC /DC voltage, current, power, power factor, frequency and other electrical parameters.
- UART communication interface.
- The accuracy grade is better than the national 0.5s standard.
- Support OEM &ODM.
Specifications:
1. Single Phase AC Input (DC Input optional):
1) Voltage range: 0~100v, 220V, etc. (other voltage ranges can be customized).
2) Current range: 0.001~10a manganese copper sampling direct type (other current ranges can be customized).
3) Rated frequency: 45~65hz.
4) Signal processing: special metering chip is adopted, and 24 bit AD is adopted.
5) Overload capacity: 1.2 times the range is sustainable, the instantaneous (<20ms) current is 5 times, the voltage is 1.5 times, and the range is not damaged.
6) Input impedance: voltage channel >1k Ω /v, current channel ≤ 100m Ω.
2. Communication Interface:
1) Interface type: provide UART communication interface.
2) Communication protocol: MODBUS-RTU protocol.
3) Data format: software can set "n, 8,1", "E, 8,1", "O, 8,1", "n, 8,2".
4) Communication rate: baud rate can be set at 1200, 2400, 4800, 9600bps. The baud rate of communication interface is 9600bps by default, and the format is "n, 8,1".
3. Measurement Data Output: Voltage, current, power, power factor, frequency, electric energy and other electrical parameters.
4. Measurement accuracy: voltage, current and power: ≤ 1.0%; Active kwh level 1
5. Power supply: when dc+3.3v power supply, typical power consumption: ≤ 20mA.
6. Working environment
1) Working temperature: -20~+70 ℃; Storage temperature: -40~+85 ℃.
2) Relative humidity: 5~95%, no condensation (at 40 ℃).
3) Altitude: 0~3000 meters.
4) Environment: a place without explosion, corrosive gas and conductive dust, and without significant shaking, vibration and impact.
7. Temperature drift: ≤100ppm/℃
8. Installation Method: Pin (available for packaging).
9. Module size: 23x23mm, pin spacing 2.54mm.
10. Interface definition and wiring diagram:
|
Pin Name |
Function Definition |
|
|
Lin |
Tested AC live wire in |
Tested DC positive pole in |
|
Lout |
Tested AC live wire out |
Tested DC positive pole out |
|
N |
Tested AC Neutral wire |
Tested DC negative pole |
|
NC |
/ |
|
|
GND |
Module work power supply DC (Internal connect to Lin) |
|
|
VCC |
Module work power supply DC3.3-5V (need isolation) |
|
|
TXD |
Module data transmission pin (need optocoupler isolation) |
|
|
RXD |
Module data receiving pin (need optocoupler isolation) |
|
Shenzhen JSY Technology Co., Ltd.
Power Metering and EV Charging Module &Solution OEM /ODM Expert