Yokogawa YFGW510 - Manual (Page 74)

<E3. Maintenance in Hazardous Areas>
E3-1
IM 01W02E01-01EN
E3. Maintenance in Hazardous Areas
In maintenance, check for loose power supply wiring, ground wiring or network cable connection.
During maintenance and repair activities, if there is need to access the system in hazardous
areas via an YFGW510 communication port, PCs and other devices used must comply with the
explosion-proof requirements. For details, please contact Yokogawa Electric Corporation.
Explosion-proof instruments must retain their intended properties before and after maintenance.
Otherwise, hazardous conditions can arise. Be sure to consult with Yokogawa Electric Corpora-
tion for any repair and alteration.
For other field wireless system hardware components, see respective user’s manuals.