Baker Hughes Masoneilan SVI II AP Quick Start Manual page 78

Approved wire seals against ingress of water and dust are required and the NPT
fittings must be sealed with tape or thread sealant in order to meet the highest level
of ingress protection.
Where the protection type depends on wiring glands, the glands must be certified for
the type of protection required.
The metal housing is a die-casting alloy which is predominately aluminum.
Before powering the SVI-II AP:
1. Verify that the pneumatic and electronic cover screws are tightened. This is
important to maintain the ingress protection level and the integrity of the
flameproof enclosure.
2. If the Installation is Intrinsically Safe, then check that the proper barriers are
installed and the field wiring meets local and national codes for an IS
installation. Never install a device, which was previously installed without an
intrinsically safe barrier, in an intrinsically safe system.
3. Under normal operation, compressed supply gas is vented from the SVI II AP
to the surrounding area, and may require additional precautions or specialized
installations.
4. If the Installation is Non-Incendive, then check that all the electrical
connections are made to approved devices and wiring meets local and
national codes.
5. Verify that the markings on the label are consistent with the application.
6. Verify that the air supply pressure cannot exceed the marking on the
respective label.
ES-699 Rev AD
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