Masoneilan SVI II AP Installation and Maintenance ... - GE Energy

GE Oil and Gas
SVI II AP Instruction Manual
Required Practices for Explosion Proof Installations
The SVI II AP is provided with two threaded conduit entries. All wiring must be installed
with approved conduit and approved seals or with approved cable and cable glands
according to local codes. The unused conduit entry is plugged with a ½ NPT pipe plug.
Thread engagement must comply with local electrical codes. The cover must always be
secured before application of power.
Do not connect a HART communication device in the hazardous area. Use of the SVI II
AP local display with pushbuttons is recommended when Explosion Proof methods are in
effect.
Clarification of Terminology
In Factory Mutual Research and Canadian Standards Association codes, Explosion Proof
means use of approved enclosures and conduit enclosed cables, but in ATEX countries,
this method is called Flameproof. In ATEX countries, Explosion Proof means both
Flameproof and Intrinsically Safe.
Recommended Practice for Severe or Humid Environments
The circuitry of SVI II AP is encapsulated for protection from corrosive atmospheres. To
prevent moisture from damaging the electronics of the SVI II AP use a sealed junction
box in high humidity or tropical environments. The wiring from the junction box to the SVI
II AP is sealed by flexible cable with a cable gland or with a potted nipple and pigtail,
where applicable codes permit.
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