Emerson 9739 Manuel D’Utilisation

Configuration:

•

mA Output Process Variable

 for the primary mA output: Gas Standard Volume Flow Rate

•

Frequency Output Process Variable

: Gas Standard Volume Flow Rate

•

AO Cutoff

 for the primary mA output: 15 SLPM (standard liters per minute)

•

Gas Standard Volume Flow Cutoff

: 10 SLPM

Result:

•

If the gas standard volume flow rate drops below 15 SLPM but not below 10 SLPM:

-

The primary mA output will report zero flow.

-

The frequency output will report the actual flow rate, and the actual flow rate will
be used in all internal processing.

•

If the gas standard volume flow rate drops below 10 SLPM, both outputs will report
zero flow, and 0 will be used in all internal processing.

Display

ProLink II

ProLink

 > Configuration > Flow > Flow Direction

Field Communicator Configure > Manual Setup > Measurements > Flow > Flow Direction

Flow Direction

 controls how forward flow and reverse flow affect flow measurement and

reporting.

Flow Direction

 is defined with respect to the flow arrow on the sensor:

•

Forward flow (positive flow) moves in the direction of the flow arrow on the sensor.

•

Reverse flow (negative flow) moves in the direction opposite to the flow arrow on
the sensor.

Micro Motion sensors are bidirectional. Measurement accuracy is not affected by actual flow
direction or the setting of the Flow Direction parameter.

Set Flow Direction to the value you want to use.

Configure process measurement

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