Meriam 4150X ATEX I.S. Certified HART Communicator - Manual (Page 18)

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HAZARDOUS AREA USE
Intrinsically Safe Operation
The 4150X HART Communicator includes ATEX certification for Intrinsically Safe operation. Refer to the
Intrinsic Safety Control Drawing in the Appendix of this manual for more information. The following table
identifies model numbers and areas of acceptable use.
Model Number Use Description Non-hazardous Area Hazardous Area
4150 General Purpose √ NO
4150X Intrinsically Safe √ √
Units with Intrinsically Safe certification can be identified by model number or by a special name plate on
rear of the unit. A sample of the Intrinsically Safe name plate is shown below for reference.
Note the following WARNINGS and REQUIREMENTS for 4150X models:
• Substitution of components may impair Intrinsic Safety
• To prevent ignition of flammable or explosive atmospheres;
¾ Disconnect power before servicing
¾ DO NOT open the unit, including battery compartment, or attempt to service the unit
when located in flammable or potentially explosive atmosphere. Remove to safe area.
¾ DO NOT mix old batteries with new or mix batteries from different manufacturers
¾ DO NOT replace batteries while in explosive or hazardous atmospheres
¾ DO NOT use any battery type other than those listed on the “Intrinsic Safe Control
Document” found in the Appendix of this manual.
WARNING: Serious injury or death may result from explosions. Do not connect the Communication /
AC Adapter Dongle to a 4150X while in a hazardous area. This warning applies to the Dongle and to both
of the external connections to the Dongle – the AC Adapter and Serial Cable.
WARNING: 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. Meriam reserves the right
to revise the Intrinsic Safety Control Drawing without notice. Contact Meriam (phone 216.281.1100) for
the current Intrinsic Safety Control Drawing.
For Intrinsically Safe model 4150X, consult the Intrinsic Safety Control Drawing in the Appendix of this
manual for restrictions, for special instructions in use, and for electrical connections allowed.