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Thanks. Will take you up on your offer some time. I'm an old hand at electronics (18 years). Could not bother refreshing my memory concerning MS while at work... Those ceramic pressure sonsors are great. Just keep in mind that they are sensitive to moisture (perhaps not a Bosch or equivalent MAP sensor, but rather those plastic housed pressure sensors). They are specified for non-corrosive, non-ionic gasses, e.g. dry air. We are using one in a test rig for one of our products, and decided to add an oil trap (tube fixed in a u-shape, thin oil at the bottom). Insignificant effect on the measurement, and effectively prevents moisture from entering. The oil will not leak out of the thin tube.
Regards
Niel
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