• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 328 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.

HDC2010: Recommended Humidity operating range

Hidekazu Someno
Expert 5130 points
Part Number: HDC2010

Hi; Team,

My customer would like to confirm about the description about humidity in datasheet.

In the datasheet, there is the following description.

>Recommended humidity operating range is 20 to 80% RH (non-condensing) over 0 to 60°C. Prolonged operation beyond these ranges

>may result in a shift of sensor reading, with slow recovery time.

Q1:   Though "Prolonged" and "slow recovery time" are included in the description, How much of each of these times should be considered?

Q2:   When it is out of the range of “20 to 80% RH (non-condensing) over 0 to 60 ° C”, how much humidity accuracy shift is expected?

Best regards,

Hidekazu Someno

  • 0
    TI__Guru* 91206 points

    Someno-san, 

    In this case, its a very subjective statement - I would think here it would depend greatly on the conditions of exposure and amount of time as to exactly what the impact would be on the %RH measurement. We are saying that outside the limits, there can/most likely will be a shift, and it may offset the sensor output until corrected by either using the heater, baking or rehydrating, depending on the scenario. This is no different wording than any of the polymer based digital temp/humidity sensor vendors are using, as it applies to all of us. it is hard to estimate how much = how much shift can be over the possible ranges - i have seen some data which shows extreme environment of high humidity/high temp for >500 hours will shift us up around >10%RH, somewhere in that area - if that data point helps understand.