I currently have a sensor MPX2202A for vaccum application. In the date sheet it's said that the range of mesure is 20 to 200 kPa. I noticed that the sensor MPX2202D is able to read a pressure between 0 to 200 kPa in differential pressure.
My question is that i would like to use one of the two to mesure 15 mbar (1500 Pa) ?
Thank you for your answer.
I'm looking to install this within a vacuum chamber. I just wanted to know for sure if this device MPX2202A can measure the vacuum with the full device being in the vacuum or do I need to expose one side of it to atmospheric pressure?
Yes, the minimum operating pressure of the MPX2202A (= absolute type) is 20 kPa and the operating pressure range of the MPX2202D (= differential type) is from 0 to 200 kPa.
The MPX2202A measures an external pressure relative to a pressure reference (vacuum) sealed inside the reference chamber of the die during manufacture. The MPX2202D measures the difference between pressures applied simultaneously to opposite sides of the diaphragm.