Emerson Rosemount 3410 Series Maintenance And Troubleshooting Manual page 25

Maintenance and Troubleshooting manual
00809-0200-3104
Table 2-2: Meter Monitor maintenance
MeterLink utility Diagnostics
Meter Monitor Flow Profile
(Detailed) view
Rosemount 3415, 3416 and 3417
(continued)
Action(s)
• If a chord causes the spread for the speed
of sound (SOS) to vary more than 0.35% of
the average speed of sound, the bar for that
chord turns yellow.
• Clicking one of the arrows at the top left
of the graph will change the chart to SOS
Differences from the average meter speed
of sound. This provides a quick indication
on how much spread in speed of sound
is between the chords. Negative values are
shown in blue.
• Compare gains and signal to noise (SNR)
ratios decibel values with the values in the
Maintenance Log Inspection report from
the meter flow calibration.
• Check chord average signal amplitudes
with the meter base line values in the
Maintenance Log Inspection report.
• The meter may not be in measurement
mode, or there are too few operating
chords.
• If a chord is hard failed, the Check Status
LED will change from green to red. The
issue may be the transducer pair for the
failed chord or the transducer cabling.
Resolve the issue and clear the alarm.
• If installed, check the flow conditioner for
blockage.
• If you have enabled the Continuous
Flow Analysis feature, from the Meter
Monitor (Detailed) view, click Baseline.
The Baseline Viewer displays the meter's
flow characteristics including: Flow Velocity,
Profile Factor, Swirl Angle, Symmetry, Cross-
flow, and Path Turbulences.
Troubleshooting
December 2023
25