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TIDA-00972: technical questions for HDC1080 calibration

Part Number: TIDA-00972
Other Parts Discussed in Thread: HDC1080, HDC2080, HDC2010

Dear Sirs,

My customer is studying this reference design, now they have some technical questions, among them:

- Does calibration certificate and accuracy of the sensor (page 23 of TIDA-00972 user guide) is delivered by you for each sensor or this one can be used/reused.

- What is calibration formula/algorithm/process and how often it needs to be done.

Also and this for helping us decide on ABS plastic housing design:

- Is it a must for the sensor to have a direct contact with the environment (through a hole made on plastic housing) in order to accurately get both temperature and humidity values or this condition is limited to humidity or there ain't such a condition at all. Please advise.