Emerson Micro Motion 9739 MVD Configuration And Use Manual page 35

Configuration and Use Manual
MMI-20016855
4.4.1 Options for Flow Direction
Flow Direction setting
ProLink III
Forward
Reverse
Absolute Value
Bidirectional
Negate Forward
Negate Bidirectional
Effect of Flow Direction on mA Outputs
Flow Direction affects how the transmitter reports flow values via the mA Outputs. The mA Outputs are
affected by Flow Direction only if mA Output Process Variable is set to a flow variable.
Flow Direction and mA Outputs
The effect of Flow Direction on the mA Outputs depends on Lower Range Value configured for the mA
Output:
If Lower Range Value is set to 0, see
•
• If Lower Range Value is set to a negative value, see
Configuration and Use Manual
Field Communicator
Forward
Reverse
Absolute Value
Bi directional
Negate/Forward Only
Negate/Bi-directional
Figure 4-1.
Figure
Configure process measurement
Relationship to Flow Direction arrow on sensor
Appropriate when the Flow Direction arrow is in
the same direction as the majority of flow.
Appropriate when the Flow Direction arrow is in
the opposite direction from the majority of flow.
Flow Direction arrow is not relevant.
Appropriate when both forward and reverse flow
are expected, and forward flow will dominate, but
the amount of reverse flow will be significant.
Appropriate when the Flow Direction arrow is in
the opposite direction from the majority of flow.
Appropriate when both forward and reverse flow
are expected, and reverse flow will dominate, but
the amount of forward flow will be significant.
4-2.
June 2019
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