Mechanical/Electrical Troubleshooting (continued)Table C-1:
Problem Solution(s)
Waveform contains an
excessive amount of
noise
Increase the StackSize until noise level decreases (settings can be 1
(none), 2, 4, 8, or 16). If increasing the StackSize is not successful, try
turning on the filter or consult with Flow Lifecycle Services for Daniel
products if you are unsure of how stacking a signal can effect the meter's
operation. Refer to Technical Support under the Help menu of Daniel Me-
terLink for contact information.
Connected communi-
cation line to the flow
computer but no sig-
nal is received
• Check for loose connections at the flow meter and the flow computer
(see ).
• Check the CPU Module, Field Connection board and the Power Supply
wiring. Make sure the terminal block wiring and connectors are mak-
ing good contact.
Communicating with
meter but all chords
display failures
• Verify that the resistance of transducers is within Specification (1-2
Ω).
• Check the Acquisition board.
• Check the interconnect cables between the base enclosure and the
transmitter enclosure.
Chord is not indicating • Check the resistance of the failed transducer.
• If Chord A is not indicating, change the transducer cables from Chord
D to chord A
• If Chord D then fails, the transducers are bad on Chord A.
• The same test procedure can be accomplished by swapping Chords B
and C if a chord fails in either chord.
Note
Note that the outside chord cables cannot be exchanged with inner
chord cables.
Troubleshooting comm., mech., and elec.
136 3410 Series Gas Ultrasonic Flow meters
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