Emerson FB1100 Instruction Manual page 63

DANGER
Ensure the flow computer is in a non-hazardous area. Never remove end caps in a hazardous area.
DANGER
Do not disconnect equipment unless power has been removed or the area is known to be non-
hazardous.
DANGER
EXPLOSION HAZARD: Substitution of any components may impair suitability for Class I, Division 1
or Class I, Division 2.
DANGER
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.
1. Remove the retaining clamp from the front end cap (if present). (See Section 2.6.1)
2. Remove the front end cap.
3. Remove the HMI module.
4. Grasp the coin cell battery and remove it from its slot.
Figure 4-6:
5.
6.
7.
Service and Troubleshooting
Removing/Replacing the Coin Cell Battery
Insert the new coin cell battery in the slot. The positive side (+) must be on top.
Replace the HMI module.
Replace the end cap. Screw the end cap clockwise (eight full turns) until it is tightly sealed
to the enclosure. Re-attach the retaining clamp, if applicable (see Section 2.6.1).
Emerson FB1100 Flow Computer Instruction Manual
D301752X012
July 2017
57