4.4.4 Configure Gas Standard Volume Flow Cutoff
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Gas Standard Volume Flow Cutoff
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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.
Procedure
Set
Gas Standard Volume Flow Cutoff
to the value you want to use.
•
Default: 0.0
•
Range: 0.0 to any positive value
Interaction between Gas Standard Volume Flow Cutoff and mA Output
Cutoff
Gas Standard Volume Flow Cutoff
defines the lowest Gas Standard Volume flow value that the transmitter
will report as measured.
mA Output 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 through
outputs and the gas standard volume flow values used in other transmitter behavior (for example, events
defined on gas standard volume flow).
mA Output Cutoff
affects only flow values reported via the mA Output.
Cutoff interaction with
mA Output Cutoff
lower 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
•
mA Output 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.
Cutoff interaction with mA Output 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
•
mA Output Cutoff
for the primary mA Output:
15
SLPM (standard liters per minute)
•
Gas Standard Volume Flow Cutoff
:
10
SLPM
Configuration and Use Manual
Configure process measurement
MMI-20025166
March 2019
Configuration and Use Manual
45