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Original question:

HDC2080: Detection temperature/humidity range

HDC2080: HDC2080 Temperature and humidity range

Jimmy Huang22
Expert 1470 points
Part Number: HDC2080

Hi Ti team,

    Could you please help to confirm that the temperature and humidity data we tested are very different, which are tested in a constant temperature incubator? 

the test data as attachmenthumidity sensor variation studay 0611.xlsx

  • 0
    TI__Mastermind 28075 points

    Hi Jimmy,

    Is there a calibrated reference in the chamber to compare to? It looks here like the sensors are being compared to each other, which means there is no way to know which sensors are reading correctly. Also, it is important to allow the chamber sufficient time to settle at each temperature and Humidity setting. Typically we would provide at least 30 minutes of settling time, but it may take longer depending on the stability of the chamber. 

    The first step i would recommend for troubleshooting RH Accuracy issues is attempting a bake of the parts, for roughly 24 hours, at 100 - 125C. This helps in the case the parts were exposed to board washing or excess moisture. 

    For temperature accuracy we verify inside a liquid oil bath, but it looks to me like these parts are staying tightly grouped in terms of temperature. 

    Best Regards,
    Brandon Fisher