I am working on my senior design project. Our goal is to develop a way to measure the concentration of samples of H2S. We have a limited budget. We currently have an EC4-1000-H2S sensor from SGX Sensortech. We have tried, and failed, to reproduce their evaluation circuit. So, we are looking to buy an evaluation module. I am interested in using the LMP91000 evm in standalone mode, and correlating the change in voltage with chanes in concentration.
Is this possible with the sensor I have? Here is a link to the spec sheet: http://www.sgxsensortech.com/content/uploads/2014/07/EC4-1000-H2S1.pdf