Ground The Meter Components - Emerson Micro Motion 4200 Installation Manual

Mounting and sensor wiring
April 2023
Figure 2-7: 9-wire transmitter-to-sensor wiring connections
Note
Connect the 4 drain wires in the 9-wire cable to the ground screw located inside the junction box.
4. Replace the transmitter-to-sensor wiring compartment cover and tighten the screws
2.4

Ground the meter components

In 9-wire remote installations, the transmitter and sensor are grounded separately.
Prerequisites
NOTICE
Improper grounding could cause inaccurate measurements or meter failure.
WARNING
Failure to comply with requirements for intrinsic safety in a hazardous area could result
in an explosion causing death or serious injury.
Note
For hazardous area installations in Europe, refer to standard EN 60079-14 or national
standards.
If national standards are not in effect, adhere to the following guidelines for grounding:
• Use copper wire, 14 AWG (2.08 mm
• Keep all ground leads as short as possible, less than 1 Ω impedance.
• Connect ground leads directly to earth, or follow plant standards.
16
to 14-16 in-lbs.
2 ) or larger wire size.
Micro Motion 4200 2-Wire Transmitter
Installation Manual
MMI-20058013