Smart Positioner
YT-3700 / 3750
Product Manual
Ver. 1.03
6
that occurs in shipment, due to act of God, failure due to power surge, or cosmetic damage.
Improper or incorrectly performed maintenance will void this limited warranty.
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For detailed warranty information, please contact the corresponding local Rotork YTC Limited
office or main office in South Korea.
1.3
Explosion Proof Warning (Only for Intrinsic safety type positioners)
Please ensure the unit is being used and installed in conformity with local, regional, and national
explosion proof within the proper safety barrier environment.
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Refer to “2.7 Certifications”
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Explosion proof type of cables and gaskets should be used, when explosion gases are present
at the installation site.
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Positioner has 2 ports for power connection. Explosion proof type wires and packing should be
used. Blind plug is required when any port is not being used.
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Ring terminal with surface area of more than 1.25mm
2
with M4 spring washer should be used to
connect the power.
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For external ground terminal, ring terminal with surface area of more than 5.5mm
2
should be
used.
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Wiring in these applications shall utilize appropriate methods for Class I, Division 2 / Zone 2
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Substitution of components may impair intrinsic safety.
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Substitution of components may impair suitability for Class I, Division 2.
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EXPLOSION HAZARD. Do not connect or disconnect wiring unless all sources of power have
been removed or the area is known to be non-hazardous.
(French) RISQUE D'EXPLOSION. Ne pas raccorder ou débrancher le câblage à moins Toutes
les sources d'énergie ont été enlevées ou la zone est connue pour être non dangereux.
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The enclosure of model YT-3700 contains aluminum, which is considered to constitute a
potential risk of ignition when subjected to impact or friction. Care must be used during
installation in locating this equipment to prevent impact or friction
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Some of the enclosure parts are made of non-metallic materials. To prevent the risk of
Electrostatic sparking, clean the enclosure only with a damp cloth.
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The product must be installed in such a manner as to minimize the risk of impact or friction with
other metal surfaces.
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For Intrinsically Safe installations, the product must be connected to suitably rated intrinsically
safe equipment, and must be installed in accordance with applicable intrinsically safe installation
standards.
