HDC1080: Calibration of the data with a atmospheric pressure from 50kpa t0 85kpa

Jason Shen

Intellectual 1965 points

Part Number: HDC1080

Dear expert,

We have a use case of low atmospheric pressure from 50kpa t0 85kpa, and find the humidity data is not accuracy, so we are wondering if our device can support this range of atmospheric pressure? and also if yes, is there some calibration method?

Thanks

Jun Shen

over 3 years ago

0 Josh Wyatt over 3 years ago

TI__Guru* 91206 points

Dear Jun -

Thanks for the post - What is the application? Is this request for conditions inside a closed chamber or open space?

0 Jason Shen over 3 years ago in reply to Josh Wyatt

TI__Intellectual 1965 points

Josh

Thanks, and it is used in a breathing machine, and it is inside a closed chamber, will this work? And how to make it accuracy?

Thanks

Jun Shen

0 Josh Wyatt over 3 years ago in reply to Jason Shen

TI__Guru* 91206 points

Jason -

We don't test other than 1ATM. Most likely the device would continue to work just fine as the pressure decreases the %RH will decrease and be measured correctly, because as long as temperature remains constant, the saturation pressure will remain constant.

Sensors

Sensors forum

HDC1080: Calibration of the data with a atmospheric pressure from 50kpa t0 85kpa