OUTDOOR Modbus surface sensors with Measurement of temperature and humidity and dew point

The Temperature sensor T-AP Modbus measures temperature in indoor and outdoor areas. The Temperature and humidity sensor TH-AP Modbus measures temperature and humidity in indoor and outdoor areas and calculates the dew point. 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 Temperature and humidity sensor TH-AP Modbus measurement values with “Function 04h (Read Input Register)”.  

Functions Temperature sensor T-AP Modbus 

 • Temperature measurement 

Functions Temperature and humidity sensor TH-AP Modbus:  

• Temperature measurement  

• Humidity measurement  

• Dewpoint calculation  

Notes on dew point calculation:  

The TH-AP Modbus calculates the dew point of the ambient air. 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.