• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 194 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

HDC3022: Measurement inaccuracy/degradation from visible light exposure?

Katrina Verlinde
Prodigy 10 points
Part Number: HDC3022

The datasheet for this part states "Long exposure to UV and visible light, or exposure to chemical vapors for prolonged periods, should be avoided as it may affect RH% accuracy." 

The handling doc only outlines protection procedures for particulate and chemical exposure, nothing about visible or UV light. If this part is used and/or stored in indoor environment with ambient lighting, will it degrade over time/will RH measurements be affected?

  • 0
    TI__Expert 3345 points

    Hi Katrina,

    As the datasheet says, long exposure to UV light could degrade the sensor. However, normal (fluorescent) indoor lighting should be fine. For ambient environmental sensing applications, a preventative action you could take is ensure the HDC device is kept out of direct light path (so you could slightly offset the HDC placement from a hole/opening in your application). 

    Best,

    Sakeenah