rjw57
Mechanical
- Jan 27, 2002
- 109
Can an enclosure which is z-purged to reach general purpose classification in a class 1 div 2 surrounding environment house any sensors or instruments which contain the offending fluid? I have a box which contains electronics which will be z-purged and I do not believe that it would be correct to house either a mass flow meter (ala Brooks or MKS) and a pressure transducer since they both "contain" the offending fluid. I believe that this would then render the enclosure a class 1 div 2 space, yet several of my colleagues disagree. Any NEC citations available? Go easy on me, I'm an ME.