BMP585 coupling to device cover to ensure waterproofness

[Pano]

Hello,

Does anyone have any diagrams that show how the pressure sensor should be fitted in a device to ensure that the device is waterproof and to obtain optimal perfromance. For example, the equivalent ST sensor (LPS27HHW) has online files available specifying the o-ring to be used and other considerations.

Many thanks in advance for any pointers.

[BSTRobin]

Hi Pano,

Thanks for your inquiry.
You can refer to BMP585 handling, soldering, mounting, instructions document from https://www.bosch-sensortec.com/media/boschsensortec/downloads/handling_soldering_mounting_instructi...

If you need any further information on this topic, you can also get in contact with one of our official distributors or sales representatives to allow us to review each project on a case-by-case basis.

[Pano]

Hi, thanks for your response but Iwas looking for more clarification on how to design the casing, for example, ST has an image like this for their pressure sensor and specifies the requirements for the o-ring. I contacted sales, who referred me back here and am trying to get a response from several distributors but it seems like a standard design issue- is there really no further information Bosch can supply?

 

[BSTRobin]

Hi Pano,

For BMP585 O-ring design, the reference dimensions are: 2.0(inner diameter)*0.5(cord size) mm.

[Pano]

Hi Robin, Any chance we can get more clarification on getting a good fit, our designers are struggling to make such a the o-ring you specified work, it is very small.