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Effect of the Flow Direction parameter and actual flow direction on flow
values reported via digital communications
Table 4-8:
Flow Direction setting Actual flow direction
Forward Zero flow Reverse
Forward
Positive 0 Negative
Reverse
Positive 0 Negative
Bidirectional
Positive 0 Negative
Absolute Value
Positive
(3)
0 Positive
Negate Forward
Negative 0 Positive
Negate Bidirectional
Negative 0 Positive
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 4-9:
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.
The density measurement parameters include:
•
Density Measurement Unit
•
Slug Flow Parameters
•
Density Damping
•
Density Cutoff
(3) Refer to the digital communications status bits for an indication of whether flow is positive or negative.
Configure process measurement
44 Micro Motion
®
Model 1500 Transmitters with Analog Outputs