topic Re: MPX2300 pressure sensor damaged in Sensors

MPX2300 pressure sensor damaged

joe7 — Tue, 03 Feb 2026 20:49:06 GMT

For medical applications, the use of silicone oil (liquid) for pressure conduction is used to measure the height difference between point A and point B. Currently we have tried many types of silicone oil, which can damage the sensor and no longer work, but we have also seen other similar products used. The liquid is not water, but we don't know what it is, it has a density of 0.9. I was wondering if there are any recommended liquids, thanks.

best regards

Re: MPX2300 pressure sensor damaged

TomasVaverka — Wed, 28 Feb 2024 08:44:32 GMT

Hi Joe,

I do fully understand your question.

What I can say about the MPX2300DT1 is that the gel coating is on the backside of the device where a little nose is:

Attached you can find the documentation for both the gel, opaque filler and molding compound. The pigment id Ferro 61-88450. It is mixed 4% with the Dow Corning 7-9600 gel.

BR, Tomas

Re: MPX2300 pressure sensor damaged

joe7 — Thu, 18 Jan 2024 07:26:37 GMT

Hi TomasVaverka,

Thank you very much for your answer.

We have learned that the gel coating on the mold should not contact with water, and water or any other liquid can penetrate the gel and reach the mold and damage the sensor. Sorry for my ignorance, but I still cannot understand the attachment and answer you gave me. Would you like to give me a detailed answer again.

best regards,
Joe

Re: MPX2300 pressure sensor damaged

joe7 — Wed, 28 Feb 2024 06:57:15 GMT

Hi TomasVakerka,

Are there any recommended liquid media for medical applications, or have there been any successful cases of similar customers? Thank you very much.

best regards,

Joe