Emerson MMI-20019043 Manuel D’Utilisation

4.3.4

Configure Gas Standard Volume Flow Cutoff

Display

ProLink II

ProLink

 > Configuration > Flow > Std Gas Vol Flow Cutoff

ProLink III

Device Tools

 > Configuration > Process Measurement > Flow

Field Communicator Configure > Manual Setup > Measurements > GSV > GSV Cutoff

Gas Standard Volume Flow Cutoff

 specifies the lowest gas standard volume flow rate that will

reported as measured. All gas standard volume flow rates below this cutoff will be
reported as 0.

Set Gas Standard Volume Flow Cutoff to the value you want to use.

The default value for Gas Standard Volume Flow Cutoff is 0.0. The lower limit is 0.0. There is no
upper limit.

Gas Standard Volume Flow Cutoff

 defines the lowest Gas Standard Volume flow value that the

transmitter will report as measured. AO Cutoff defines the lowest flow rate that will be
reported via the mA output. If mA Output Process Variable is set to Gas Standard Volume Flow
Rate

, the volume flow rate reported via the mA output is controlled by the higher of the

two cutoff values.

Gas Standard Volume Flow Cutoff

 affects both the gas standard volume flow values reported

via outputs and the gas standard volume flow values used in other transmitter behavior
(e.g., events defined on gas standard volume flow).

AO Cutoff

 affects only flow values reported via the mA output.

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: 10 SLPM (standard liters per minute)

•

Gas Standard Volume Flow Cutoff

: 15 SLPM

Result: If the gas standard volume flow rate drops below 15 SLPM, the volume flow will be
reported as 0, and 0 will be used in all internal processing.

Configure process measurement

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