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Daniel 3818 LNG Liquid Ultrasonic Meter Installation Manual Section 4: Configuring a 3818 LNG Meter
3-9000-771 Rev A May 2012
Using AMS Device Manager to configure the meter 67
a. Click Start to activate the zero flow calibration. The default duration is four
minutes. The status bar indicates the per cent complete. Wait for the
b. When the per cent status shows Completed Successfully, select
End Zero to process
the results.
c. If you have started the zero flow calibration, select
Abort Zero to stop the
calibration process without updating the zero flow velocity offset.
d. Click the
Next button to display the zero flow velocity offset units of measure.
e. If the one of the following error conditions exists, AMS Device Manager displays
an error message and does not update the zero flow velocity offset:
– if the meter has a chord failure
– if the velocity offset is too large
– if the estimated maximum deviation is too large
f. Click
Exit to return to the AMS Device Manager - Overview page.
7. On the Overview page, click
Alert Setup and select the Flow Analysis tab and enable
Reverse Flow (this currently the only parameter available for 3818 LNG Liquid Ultrasonic
Flow Meters). Click the
OK button to return to the Overview page.
8. On the Overview page, click the
Service Tools tab and select the Variables tab. The Flow
Data, Path Information, Flow Totals, and All Variables data is populated after you are
connected to the meter.
a. Click the
Flow Data tab and view the Flow Direction (Forward or Reverse),
Average Flow and Average Sound Velocities values.
b. Click the
Path Information tab and view the Chord performance, Gain, SNR (Signal
to Noise Ratio) Signal strength (mV), and Noise (mV).
c. Click the
Flow Totals tab to view the volume totals (forward and reverse
uncorrected volume).