Table 2-1: Troubleshooting
(continued)
Error Recommended action(s)
Chord failure Chord is hard failed (Chord A, Chord B, Chord C or Chord
D) and meter is unable to obtain measurement data from
this pair of transducers.
• If Chord A is failed and no other transducers are
failed or are reporting status alerts, the issue is
most likely isolated to this pair of transducers or its
cabling. Check the transducer wiring for this pair of
transducers to make sure connections are secure and
wired correctly.
• Verify that the meter run is not partially full where the
top transducer pair are not submerged in the process
fluid.
• Verify the average gain of this transducer pair is not
above 90 dB. The gain value can be read in MeterLink
on the Monitor page.
• Remove the transducer cable from the transducer and
measure the resistance with an Ohm meter across the
two pins on the back of the transducer housing. If the
value is over 2 ohms, replace the transducers.
• If transducer cabling allows, swap cabling of failed
transducer pair with a pair with equal path lengths.
If the alarm remains active for this chord, then the
transducers are working properly. If this alarm clears
but the chord that was swapped now fails, the issue is
with the transducer.
• Collect a Maintenance Log, Configuration file and
Waveform stream file with MeterLink and contact your
Emerson Flow service representative.
CPU Module LINK LED • When connecting directly:
— Use a cross-over cable connection (P/N
1-360-01-596).
• When Using a Hub:
— Use straight-through patch cable between the
meter and the hub and a straight-through patch
cable between the hub and the PC.
— Do not connect either the meter or PC to the hub
UPLINK port.
— Check the CPU Module LED1 is on (either solid
red or flashing green). If the LED is not on, check
power to the meter.
— If the LED is on, check the Ethernet cable
connections.
Maintenance and Troubleshooting Manual Troubleshooting
00809-0100-3814 January2023
Rosemount 3814 Liquid Ultrasonic Flow Meter 17
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