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Original question:

HDC2021: HDC2021DEBR

HDC2021: Factory calibrated?

Tommy Smith
Prodigy 10 points
Part Number: HDC2021

Tool/software:

Is the HDC2021DEBR factory calibrated?
Does this sensor needs to be re-calibrated after peeling off the tape after reflow / coating process?

Best regards,

Tommy Smith

  • 0
    TI__Intellectual 2140 points

    Hello Tommy,

    Yes the HDC2021 is factory calibrated. It does not need to be re-calibrated after a reflow/coating process, but it does need to undergo a rehydration process to allow the sensor's polymer to settle and return to the calibrated RH accuracy. You can find out more about this on page 35 of the datasheet (specifically section 10.1.1.2 and below). 

    Regards,

    Harry