Hazardous Atmosphere Operation - Motorola MTX-800 Classic User Manual

Hazardous Anyone intending to use a radio in a hazardous
area is advised to become familiar with the subject
Atmosphere
of intrinsic safety and with Section 70 of the
Operation
National Fire Code, which is commonly referred to
as Article 500 of the National Electric Code. Use of
anything but factory supplied components may
affect the approval and safety of the radio.
Likewise, it is advised that servicing should be
performed only by qualified personnel who adhere
to the following FM required warning:
Certain MTX-800 Classic and MTX-900 Classic
radios and batteries have been declared
intrinsically safe by Factory Mutual Research Corp.
(FMRC) of Norwood, Massachusetts, for use in
hazardous atmospheres. FM approved radios are
identified by attached certification labels and by
matching green dots found on the backs of radios
and batteries. The intrinsically safe rating by
Factory Mutual states that electrical equipment is
incapable of releasing sufficient electrical or
thermal energy, under normal or abnormal
operating conditions, to cause ignition of a specific
hazardous atmosphere. This means the MTX-800
Classic and MTX-900 Classic radios have been
thoroughly tested by Factory Mutual and carries its
certification for operation in the hazardous
atmospheres designated on the radio label. Radios
must ship from the Motorola factory with the
hazardous atmosphere options and cannot be
50
! WARNING
MODIFICATION OF FM
APPROVED INTRINSICALLY
SAFE RADIOS WILL NEGATE FM
APPROVAL.