Emerson FB1200 Flow Computer Instruction Manual
D301782X012
March 2019
Service and Troubleshooting 87
EXPLOSION HAZARD: Ensure the area in which you perform this operation is non-hazardous.
Performing this operation in a hazardous area could result in an explosion.
EXPLOSION HAZARD: Do not disconnect equipment unless power has been removed or the area
is known to be non-hazardous.
EXPLOSION HAZARD: Substitution of any components may impair suitability for Class I, Division 1
or Class I, Division 2.
EXPLOSION HAZARD: Do not replace batteries unless power has been switched off or the area is
known to be non-hazardous. Batteries must only be changed in an area known to be non-
hazardous.
There are no user-serviceable parts inside the battery pack. Do not open the battery pack as you
may damage the battery pack or injure yourself.
Restriction
Battery packs cannot be used with ATEX or IECEx applications.
Keep the replacement battery pack handy during the procedure.
1.
Remove the retaining clamp from the front end cap (if present). (See Section 2.6.1.)
2.
Remove the front end cap.
3.
Loosen the two bottom captive fastening screws on the HMI module. Leave the two top
screws connected to the battery pack.
4.
Grasp the HMI module and gently pull it and the battery pack out of the enclosure, leaving
the battery still connected.
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