Emerson Micro Motion 3711 Configuration And Use Manual page 200

Installation Types and Components
The Mass Flow Interface termination board is installed on top of the base termination board (see
Figure A-6).
• The Mass Flow Interface termination board provides the PWR+ and PWR– terminals that
power the system, and the MVD terminals for the RS-485 connection to the sensor. The Mass
Flow Interface board is required for Model 3711 operation.
• The base termination board, beneath the Mass Flow interface board, provides ground screws,
I/O terminals, etc.
For more information, see the Model 3711 installation manual.
Note: Do not use the MVD+ and MVD– terminals to supply power to the I.S. barrier. Instead, use the
PWR+ and PWR– terminals. For more information, see the Model 3711 installation manual.
Figure A-6
Mass Flow Interface board
MVD terminals for RS-485
connection to sensor
Power wires to I.S. barrier
192
Model 3711 with Mass Flow Interface board
Base termination board
Internal ground
screws
PWR+ and PWR–
terminals
Power wires from external
power supply
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Micro Motion Model 3711 Gas Flow Computers