Electronic – arduino – Sensor/transducer for low pressure gas measurement

arduinotransducer

First time poster here so let me know if I'm missing key info.

I'm helping a friend create an Arduino-powered data collection system for his coffee roaster, and we'd like to track the natural gas pressure (in W.C.) being sent to the burners.

Can anyone recommend a low-cost solution for this? I think we'd have to have a plumber install it, because it should be inserted into the pipe leading to the already-installed analog readout and allow us to push data to a microcontroller. I don't know the exact diameter of the copper pipe but I think it's a standard size. Even if someone could point me in the direction of the right class of device and/or a manufacturer, that would be great.

Thanks.

EDIT: The range we need is 0-16" W.C. or 0-40 mbar

Best Answer

I'm no expert on the plumbing/safety aspects, but I think you are probably looking for something like this sensor from Honeywell

Pressure sensor

The above came from Farnell, where there are 677 other options to look at.
Many of the expensive ones are incorporated into some metal piping which I imagine can be inserted in between or on a tap off (depending on design), and some of the cheapest are nothing more than an IC with a small tube attached, but I'm not sure how you could use these safely.

I would ask your plumber about suitability before purchasing anything, you can download a copy of the datasheet for measurements/specs.
Digikey/Mouser/RS/etc are likely to have other options also.

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