SenTec

SEM223B Pipeline CO2 temperature and humidity integrated sensor

SEM223B transmitter adopts a new infrared verification technology to measure CO2 concentration. The response is quick and sensitive, avoiding the life and long-term drift of traditional electrochemical sensors.

SEM223B transmitter adopts a new infrared verification technology to measure CO2 concentration. The response is quick and sensitive, avoiding the life and long-term drift of traditional electrochemical sensors. It is widely used in agricultural greenhouses, flower cultivation, edible fungus cultivation, etc. that require CO2 and temperature and humidity. Monitoring occasions. 485 communication, standard ModBus-RTU communication protocol, communication address and baud rate can be set, the farthest communication distance is 2000 meters. The equipment has 10-30V wide voltage power supply, and the enclosure has a high degree of protection, which can adapt to various harsh conditions on site.

Parameters

Power supply10~30V DC
Average power consumption0.3W(24VDC)
Output signal4-20mA、0-5V、0-10V,485 output (standard Modbus protocol)
RangeTemperature-40℃~+80℃
Humidity0~100%RH
CO20~5000ppm (default)
AccuracyTemperature±0.5℃(25℃)
Humidity±3%RH(60%RH,25℃)
CO2±(40ppm+ 3%F·S) (25℃)
Working temperature-20~50℃
Working humidity0~95%RH non-condensing
Working pressure91~111Kpa
Stability≤2% signal value/year
Repeatability≤2%
Response time≤10S
Warm-up time2min (available), 10min (maximum accuracy)
Zero drift≤±20ppm
Service life≥24 months
Resolution1ppm

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