Sentec
SENTEC - Model SEM224 -SEM224 particulate matter monitoring transmitter
FromSentec
SPECIFICATION
Measuring range
PM2.5:0~6000ug/m3PM10:0~6000ug/m3
Response time
≤90s
Signal output
Digital signal: RS485 output (Modbus protocol)
Warm-up time
≤2min
Working voltage
10~30VDC
Parameter configuration
Configuration via the 485 interface using the provided configuration software
Communication method
485 communication (Modbus protocol)
Device baud rate
Default 4800 ,2400, 4800, 9600 optional
Byte format
8-bit data bit, 1 stop bit, no parity
Communication address
defaults to 1, support function code: 03
Working environment
-20~60°C, 0~80%RH
Resolution
1ug/m3
Power consumption
Digital signal maximum power consumption 0.4W
Electrical connections
Direct lead