Emerson FB1100 - Grounding the Device

FB1100 Flow Computer Instruction Manual
D301752X012
November 2023
Installation 27
2.8 Grounding the Device
The flow computer includes a grounding lug on the terminal plate.
Figure 2-16. Ground Lug
1
Ground lug
DANGER
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.

Once you have installed the unit, run a ground wire between the ground lug and a
known good earth ground. You route the ground wire through one of the conduit
fittings.

Use stranded copper wire to earth ground and keep the length as short as possible.

Clamp or braze the ground wire to the ground bed conductor (typically a stranded
copper AWG 0000 cable installed vertically or horizontally).

Run the ground wire so that any routing bend in the cable has a minimum radius of
30.5 cm (12 inches) below ground and 20.4 cm (8 inches) above ground.

For more information on grounding or if your installation uses cathodic protection,
refer to Site Considerations for Equipment Installation, Grounding, and Wiring
(D301452X012).