Temperature detector SEWI MODBUS

humiditywall-mountedceiling-mounted

The indoor sensors Sewi AQS/TH Modbus and Sewi TH Modbus measure the indoor temperature and humidity and also calculate the dew point temperature. The Sewi AQS/TH also records the CO2 concentration. The devices are Modbus slaves with a RS485 interface and a RTU protocol. The Modbus master, such as PC, SPS or MC can read the Sewi Modbus Indoor Sensors measurement values with "Function 04h (Read Input Register)". Models: N° 30174 Sewi AQS/TH Modbus, CO2, temperature and humidity sensor N° 30175 Sewi TH Modbus, temperature and humidity sensor Wall/ceiling sensor with temperature and humidity measurement and dewpoint calculation. CO2 sensor optional Sewi TH Modbus Indoor Sensor Functions: Temperature measurements Humidity measurements Calculating the dew point temperature Sewi AQS/TH Modbus Indoor Sensor Functions: • Measuring the CO2concentration in the air Temperature measurements Humidity measurements Calculating the dew point temperature Tips for Dew Point Calculation: The sensors Sewi Modbus calculate the ambient dew point temperature. This value can be used for dew point monitoring. This would require another sensor for measuring the surface temperature of the wall or pipe. Also, the dew point needs to be monitored (compare with temperatures) in the Modbus master. Monitoring predetermines the possible condensate build-up on the surface, giving a chance for timely countermeasures.