11. Replace the end-cap clamp by reinserting and tightening the cap screw.
12. Restore power to the transmitter.
4.6 Ground the meter components
In 9-wire remote installations, the transmitter/core processor assembly and sensor are
grounded separately.
Prerequisites
CAUTION!
Improper grounding could cause inaccurate measurements or meter failure.
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 (2.5 mm
2
) or larger wire size.
• Keep all ground leads as short as possible, less than 1 Ω impedance.
• Connect ground leads directly to earth, or follow plant standards.
Procedure
1. Ground the sensor according to the instructions in the sensor documentation.
2. Ground the transmitter/core processor assembly according to applicable local
standards, using the transmitter’s internal ground screw or the transmitter's
external ground screw.
Mounting and sensor wiring for 9-wire remote installations
46 Micro Motion
®
Model 1700 and 2700
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