3410 Series Gas Ultrasonic Meters Operations Manual
Section 5: Calibrate and configure the meter
3-9000-777 Rev E
January 2018
Configure Continuous Flow Analysis parameters
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5.13
Configure Continuous Flow Analysis parameters
Configure the Continuous Flow Analysis features of the Daniel Ultrasonic meter. This Daniel
MeterLink Field Setup Wizard page is displayed only if the View Continuous Flow Analysis setup
was selected on the Startup Page and you have a valid Continuous Flow Analysis key. These
features require that the meter baseline be set using the
Tools|Set Baseline Wizard
.
•
Flow limits - low and high flow velocity limits.
•
SOS comparison (requires AGA 8 Detail method to be used)- compares the meter average
speed of sound to the AGA 10 calculated speed of sound.
•
Liquid detection - identifies when liquids may be present in the bottom of the meter run
base on the meter’s flow characteristics.
•
Abnormal profile - identifies if the meter flow profile has shifted from the original baseline
profile of the meter.
•
Blockage - identifies a possible blockage of an upstream flow conditioner.
•
Internal bore buildup - indicates that the flow characteristics have changed indicating a
build up on the internal bore of the meter.
5.13.1
Set Baseline parameters
Select the direction to baseline and what data to use to perform the baseline. The wizard will
step you through setting a baseline in one direction.
it is necessary to baseline the meter in both directions if the meter will be operating in a
bi-directional application. For meters only operating in a uni-directional application, the meter
only needs one baseline. The status message displayed on the Meter monitor screen about the
baseline not being set can simply be acknowledged to clear the alarm for a flow direction you do
not want to baseline
Setting baselines in two directions is only necessary if the meter is installed in a bi-directional
application. Flow through the meter in one direction can be quite different from flow through a
meter in the opposite direction. This could be because of flow conditioners, thermowells, or
elbows.
•
Select baseline flow direction - forward or reverse
•
Select baseline data source
–
1-minute averages from the meter - the preferred option when setting the baseline
for a new meter. The meter must be under typical flowing conditions when the
baseline is set.
–
Maintenance log - if the meter has already been installed in the field for a period of
time and a Daniel MeterLink maintenance log is available from the initial startup
that was taken during normal flowing conditions.
–
Manual entry - manually enter data for each of the parameters. This could be used to
modify a single parameter for a baseline already set or it could be to enter data from
a historical record from when the meter was first put into service.
