Within the European Community, intrinsically safe pressure sensors may only be utilized in hazardous areas if they are installed in conjunction with an Ex barrier. The combination of pressure sensor and Ex barrier must meet up with the ?Proof intrinsic safety? in accordance with the 94/9/EC ATEX directive. Shocking of sensor and barrier from different manufacturers fulfil this problem.
On the main one hand, it might be that the safety or Ex characteristic values do not match, alternatively, the functional characteristics must match the application. So, even if Despicable -related data match, the pair of Ex barrier and pressure sensor may not match since, for example, both components work ?passively?.
(Additional information about them ?active?/?passive? are available in the blog article ? Magnificent for pressure sensors: when is really a sensor active, and when passive??)
Therefore, you should make sure that you merely use barriers and sensors together whose safety-related data and function-related data match one another. We therefore directly recommend, inside our intrinsically safe pressure sensors? data sheets, a potentially compatible intrinsically safe Ex barrier.
If you have any more questions, our sales department will gladly offer you a detailed application consultation.