Configure process measurement
t
Example: Cutoff interaction with
AO Cutoff
higher than
Gas Standard Volume Flow Cutoff
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.
5.5
Configure
Flow Direction
Display
Not available
ProLink II
ProLink→Configuration→Flow→Flow Direction
Field Communicator
Configure→Manual Setup→Measurements→Flow→Flow Direction
Flow Direction
controls how conditions of 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.
Procedure
Set
Flow Direction
as desired.
5.5.1
Options for
Flow Direction
Flow Direction
controls how the outputs report flow and how the totalizers and inventories increment totals.
Configuration and Use Manual
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