User's Manual

ASTRO Digital XTS 2500 Model III 7
Safety and General Information
Intrinsically Safe Radio Information
FMRC Approved Equipment
Anyone intending to use a radio in a location where hazardous
concentrations of flammable materials exist (hazardous
atmosphere) is advised to become familiar with the subject of
intrinsic safety and with the National Electric Code NFPA 70
(National Fire Protection Association) Article 500 (hazardous
[classified] locations).
An Approval Guide, issued by Factory Mutual Research
Corporation (FMRC), lists manufacturers and the products
approved by FMRC for use in such locations. FMRC has also
issued a voluntary approval standard for repair service (“Class
Number 3605”).
FMRC Approval labels are attached to the radio to
identify the unit as being FM Approved for specified
hazardous atmospheres. This label specifies the
hazardous Class/Division/Group along with the part
number of the battery that must be used. Depending
on the design of the portable unit, this FM label can
be found on the back or the bottom of the radio
housing. The FM Approval mark is shown here.
FM
APPROVED
MAEPF-24560-O