Yokogawa YFGW710 - Manual (Page 46)

<A3. YFGW710 Field Wireless Integrated Gateway>
A3-26
IM 01W01F01-01EN
Note 2. Installation
WARNING
• The installation of the devices should be carried out by the engineers or other professional
personnel of the related expertise. The installation should not be carried out by operators or
other unprofessional personnel.
• The installation should be in accordance with NEC (the National Electric Code:
ANSI/NFPA-70) or local electric code.
• Make sure that the breakers are installed in the power supply circuits located in
non-hazardous areas so that the power can be shutoff when abnormality occurs.
• In the course of installation, the related documents of GS (General specifications),TI (Tech-
nical Information of Installation Guidance) and IM (User’s Manuals) should be referenced
and the instructions described in the documents should be observed.
• YFGW710 should be installed in upright position.
• YFGW710 does not have the nonincendive Field Wiring. The conduit wiring is required for
the power cable and the metal network cable to be connected to YFGW710.
• To satisfy type of protection and NEMA4X, apply suitable devices to the electrical connec-
tion port.
• YFGW710 does not have a power switch inside. Prepare a dedicated breaker for the exter-
nal power line to turn ON/OFF the device.
• Note a warning label worded
“DO NOT REMOVE COVER WHILE CIRCUIT IS LIVE WHEN A FLAMMABLE OR COM-
BUSTIBLE ATMOSPHERE IS PRESENT.”
“INSTALL IN ACCORDANCE WITH DOC.NO. NFM023-A14 P.1 AND P.2”
• Electrostatic charge may cause an explosion hazard. Avoid any actions that cause the gen-
eration of electrostatic charge, such as rubbing with a dry cloth on coating face of product.
• Take care not to generate mechanical sparking when access to the instrument and periph-
eral devices in hazardous locations.
Note 3. Maintenance and Repair
WARNING
• The instrument modification or parts replacement by other than authorized Representative
of Yokogawa Electric Corporation is prohibited and will void FM Approvals approval.
• When opening the cover, the enclosure should be dry and clean to prevent from ingress
water or dust.