RS485 PM2.5/PM10 Sensor Modbus Particle Detection Sensor Transmitter Air Quality Detection

Features 1 PM2 5 PM10 output at the same time2 unique dual band data acquisition and automatic calibration technology high consistency3 the use of advanced laser anti attenuation technology to ensure long term stability of equipment4 the device is 10 30V DC wide voltage Power supply standard Modbus RTU protocol Specification DC power supply default 10 30VDCTransmitter circuit Operating temperature 20C 60C 0 RH 80 RHCommunication interface 485 communication modbus protocol baud rate 2400 4800 default 9600Data bit length 8 bitsParity mode noneStop bit length 1 bitDefault modbus communication address 1Support function code 03Parameter settings Configured with the supplied configuration software via the 485 interfaceResolution 0 1ug cubic meterMeasuring range PM2 5 PM10 0 1000ug cubic meterResponse speed 90SWarm up time 2minWiring instructions Cable colorDescriptionPower BrownPower 10 30vdc blackPower Communicationyellow485 ABlue485 BCommunication protocolBasic communication parametersCode8 bit binaryData bit8 bitParity bitNOStop bit1 bitError checkCRCBaud rate2400bit s 4800bit s 9600 bit sdefault is 4800bit S4 2 Data frame format definitionAdopt Modbus RTU communication protocol the format is as follows Initial structure4 bytes of timeAddress code 1 byteNoise Transmitter Instruction Manual Type 485 V2 0Function code 1 byteData area N bytesError check 16 bit CRC codeEnd structure4 bytes of timeAddress code is the add