Panelview with zpurge question

[jimpad]

I have a job to retrofit a plc in a hazardous area. The location is classified as Class 1 Div. 2 Group B and D. The enclosure has a purge system in place and I don't plan on any new penetrations other than the hmi cutout.

My questions are about the hmi
1. Is it OK to penetrate the door for the hmi?
2. I can't get an answer from AB about the panelview being exposed to the pressure differential between purge and atmosphere, is this OK?

Ideas, suggestions are welcome.

Thanks,
Jim

 

[SNK]

yes, it is OK,. We use the PV1000 unit in an explosion proof area.
Make sure that the seals are in place to ensure certification.