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  1. themoke

    D/P Level Trasmitter DP per static pressure

    Hi, Let me first state that I have no direct experience with these electronic dp devices. However, I believe the issue here is that with the electronic system you have two gauge pressure sensors, each having an accuracy as some percentage of span. When the static pressure is much larger than...
  2. themoke

    Where to Buy Associated Non-Incendive Field Wiring Apparatus?

    I see reference to Associated Non-Incendive Field Wiring Apparatus on equipment Control Drawings all the time. The definition from ISA 12.12.01-2013 is as follows: associated nonincendive field wiring apparatus apparatus in which the circuits are not necessarily nonincendive themselves, but...
  3. themoke

    Class I, Div. 2 item in Div. 1 area

    [Can I conclude that, always find someway to locate the items within its classification area first, and give consideration for explosionproof and purging enclosures only if there is no other way?] Yes, ideally you will specify equipment certified for the area that it will be installed. Purged...

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