Chord A And Chord B Alarm; Field I/O Alarm; Validity Alarm; Comms Alarm - Emerson Daniel 3812 Maintenance And Troubleshooting Manual

Maintenance and Troubleshooting Manual
3-9000-767 Rev A
2.1.3

Chord A and Chord B alarm

Chord A and Chord B - These alarms indicate how a chord is functioning.
LED Color
Green
Yellow
Red
Gray
2.1.4

Field I/O alarm

Reports various field I/O devices that are in alarm. Click the
on specific alarms. The field does not appear if the meter does not support this alarm.
2.1.5

Validity alarm

This alarm indicates that the meter may not be measuring accurately. Click
description of which validity alarms are active. The validity alarms
issue with the meter collecting enough information from the chords to make an accurate
measurement. The validity alarms for pressure and temperature indicate that the value is above
or below the alarm limits for these values. Red and green are the only colors used for this alarm.
2.1.6

Comms alarm

The Comms alarm indicates that communications between Daniel MeterLink and the meter
failed. This could be due to a poor communication link. Daniel MeterLink continues to retry
communications. Red and green are the only colors used for this alarm.
2.1.7

Communications

The Communications Analyzer (via Daniel MeterLink
path) displays communications between Daniel MeterLink and the ultrasonic meter. This utility
is useful for troubleshooting communications to the meter. It displays many of the TCP/IP
commands between Daniel MeterLink and the connected meter.
For troubleshooting communications with the 475 Field Communicator for the HART®
Protocol, refer to Section 5 of the Emerson 475 Field Communicator User's Manual, Rev D. This
manual may be downloaded from the following location:
http://www2.emersonprocess.com/en-US/brands/Field-Communicator/Pages/Documentation.aspx
For troubleshooting communications with AMS Device Manager, refer to the help
documentation and support at the following web site:
http://www2.emersonprocess.com/en-US/brands/amssuite/amsdevicemanager/Pages/AMSDeviceMan-
ager.aspx
Chord A and Chord B alarm
Problem
No alarms are present. Chord is operating properly.
At least one sample in the batch caused an alarm but it did not cause the chord to fail.
The sample will not be used in the batch. Discarding occasional samples can occur
during normal operation such as during flow velocity changes.
The chord has failed or is in acquisition. This chord is not used for this batch. Chords
that have failed or are shown to be in acquisition for repeated batches indicates that the
meter should be inspected by a service technician.
The chord has manually been set to inactive, or option is not available.
Section 2: Troubleshooting
button for more details
Check Status
Check Status
and
QMeter
Tools> Menu>Communications Analyzer
June 2011
to see a
indicate an
QFlow
menu
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