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Emerson 20002158 User Manual

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3
Wiring
Topics covered in this chapter:
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•
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3.1
Options for wiring
The wiring procedure you follow depends on which electronics option you have.
Wiring procedures by electronics option
Table 3-1:   
Electronics option
Wiring procedure
Integral transmitter
No wiring is required between sensor and transmitter. See the transmitter
installation manual for wiring the power and signal cable to the transmitter.
MVD
™
Direct Connect
™
No transmitter to wire. See the MVD Direct Connect manual for wiring the
power and signal cable between the sensor and the direct host.
Core processor
Connect a 4-wire cable between the sensor and transmitter. Refer to the 4-wire
connection instructions in this manual.
Junction box
Connect a 9-wire cable between the sensor and transmitter. Refer to the 9-wire
connection instructions in this manual, as well as the Micro Motion 9-Wire
Flowmeter Cable Preparation and Installation Guide.
CAUTION!
Make sure the hazardous area specified on the sensor approval tag is suitable for the
environment in which the sensor will be installed. Failure to comply with the requirements for
intrinsic safety in a hazardous area could result in an explosion.
CAUTION!
Fully close and tighten all housing covers and conduit openings. Improperly sealed housings
can expose electronics to moisture, which can cause measurement error or flowmeter failure.
Inspect and grease all gaskets and O-rings.
Wiring
Installation Manual 
21