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 up with the ?Proof of intrinsic safety? relative to the 94/9/EC ATEX directive. Not all combinations of sensor and barrier from different manufacturers fulfil this problem.
On the one hand, it may be that the safety or Ex characteristic values usually do not match, however, the functional characteristics must match the application. So, even though Faith -related data match, the couple of Ex barrier and pressure sensor may not match since, for instance, both components work ?passively?.
(Additional information about them ?active?/?passive? are available in your 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 one another. We therefore directly recommend, in our intrinsically safe pressure sensors? data sheets, a potentially compatible intrinsically safe Ex barrier.
If Bonus have any further questions, our sales department will gladly offer you a detailed application consultation.