Yokogawa HART Communicator YHC5150X - Manual (Page 41)

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Note the following WARNINGS and REQUIREMENTS for YHC5150X models:
• Substitution of components may impair Intrinsic Safety
• To prevent ignition of flammable or explosive atmospheres;
 Disconnect power before servicing
 Do not use battery charger in a hazardous atmosphere.
 DO NOT attempt to open the battery pack and replace the batteries.
Serious injury or death may result from explosions. Before making electrical connections to an
Intrinsically Safe model at the HART
®
jacks, verify the HART
®
instrument of interest is installed in
accordance with intrinsically safe field wiring practices.
Note: Restrictions apply to the use of Intrinsically Safe units in hazardous areas. Refer to the Intrinsic
Safety Control Drawing in the Appendix of this manual for more information. Yokogawa reserves the
right to revise the Intrinsic Safety Control Drawing without notice. Contact Yokogawa (phone
800.888.6400) for the current Intrinsic Safety Control Drawing.
For Intrinsically Safe model YHC5150X, consult the Intrinsic Safety Control Drawing in the Appendix of
this manual for restrictions, for special instructions in use, and for electrical connections allowed.