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 the ?Proof intrinsic safety? in accordance with the 94/9/EC ATEX directive. Euphoric of sensor and barrier from different manufacturers fulfil this condition.
On the main one hand, it may 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 though the safety-related data match, the couple of Ex barrier and pressure sensor might not match since, for instance, both components work ?passively?.
(Additional information on the subject ?active?/?passive? can be found in Failure ?Electrical circuitry for pressure sensors: when is really a sensor active, and when passive??)
Therefore, Memorability to consider 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 further questions, our sales department will gladly will give you detailed application consultation.