Sentec
SENTEC - Model SEM223 -SEM223 wall mounted carbon monoxide CO transmitter temperature & humidity sensor
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SPECIFICATIONS
Measuring range
CO2 concentration: 0~5000ppm
Response time
≤10s (1m/s wind speed)
Signal output
Analog signal: 4~20mA, 0~5VDC, 0~10VDC
Digital signal: RS485 output (Modbus protocol)
Warm-up time
2min (available), 10min (maximum accuracy)
Working voltage
10~30VDC Note: 0~10VDC output (limited to 24VDC power supply)
Digital output
Device address: 1~255 can be set, the default is 1
Device baud rate: 2400, 4800, 9600 optional, Default 4800
Byte format: 8 data bits, 1 stop bit, no parity
Working environment
-20~60°C, 0~80%RH
Long-term stability (1 year)
≤ 30ppm
Power consumption
analog signal(voltage / current 1.2W Max)
Digital signal ≤0.4W
Accuracy
CO2 concentration: ±40ppm+3%FS(25°C)
Electrical connections
Direct lead