Emerson Micro Motion LNG Series, Configuration And Use Manual

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Options for Flow Direction
(continued)
Table 4-4:
Flow direction setting from
ProLink III Relationship to Flow Direction arrow on sensor
Negate Bidirectional
Appropriate when both forward and reverse flow are ex-
pected, and reverse flow will dominate, but the amount of
forward flow will be significant.
Effect of
Flow Direction
on flow totals
Flow Direction affects how flow totals and inventories are calculated.
Effect of the Flow Direction parameter and actual flow direction on flow
totals and inventories
Table 4-5:
Flow Direction setting
Actual flow direction
Forward Zero flow Reverse
Forward
Totals increase Totals do not change Totals do not change
Reverse Totals do not change Totals do not change Totals increase
Bidirectional
Totals increase Totals do not change Totals decrease
Absolute Value Totals increase Totals do not change Totals increase
Negate Forward Totals do not change Totals do not change Totals increase
Negate Bidirectional
Totals decrease Totals do not change Totals increase
4.5 Configure density measurement
The density measurement parameters control how density is measured and reported.
Density measurement (along with mass measurement) is used to determine liquid volume
flow.
4.5.1 Configure
Density Measurement Unit
ProLink III Device Tools > Configuration > Process Measurement > Density
Overview
Density Measurement Unit controls the measurement units that will be used in density
calculations and reporting.
Configure process measurement
30 Micro Motion ® LNG Series Meters