Within the European Community, intrinsically safe pressure sensors may only be utilized in hazardous areas if they’re installed together with an Ex barrier. The mix of pressure sensor and Ex barrier must meet the ?Proof intrinsic safety? in accordance with the 94/9/EC ATEX directive. Not absolutely all combinations of sensor and barrier from different manufacturers fulfil this problem.
On the one hand, it might be that the safety or Ex characteristic values do not match, on the other hand, the functional characteristics must also match your application. So, even if the safety-related data match, the couple of Ex barrier and pressure sensor may not match since, for example, both components work ?passively?.
( pressure gauge 10 bar on the subject ?active?/?passive? are available in the blog article ?Electrical circuitry for pressure sensors: when is really a sensor active, and when passive??)
Therefore, factors to consider that you only use barriers and sensors together whose safety-related data and function-related data match each other. We therefore directly recommend, inside our intrinsically safe pressure sensors? data sheets, a potentially compatible intrinsically safe Ex barrier.
If you have any further questions, our sales department will gladly offer you a detailed application consultation.