Emerson FB1200 - Page 95

Emerson FB1200 Flow Computer Instruction Manual
D301782X012
March 2019
Service and Troubleshooting 89
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 5-6: Removing/Replacing the Coin Cell Battery
5. Insert the new coin cell battery in the slot. The positive side (+) must be on top.
CAUTION
When inserting the SRAM coin cell battery, push the battery gently into its slot until it
stops. The battery should slide in easily. Do not use excessive force.
6. Replace the HMI module.
7. Replace the front end cap. Screw the end cap clockwise (eight full turns) until it is tightly
sealed to the enclosure. Replace the retaining clamp, if applicable (see Section 2.6.1.).