Emerson Daniel 3410 Series Operation Manual page 144

Troubleshooting comm., mech., and elec.
January 2019
Table C-1: Mechanical/Electrical troubleshooting
Problem
Connected
communication line to
the flow computer but
no signal is received
Communicating with
meter but all chords
display failures
Chord is not indicating
144
Solution(s)
• Check for loose connections at the flow meter and the flow computer
(see 3410 Series engineering
• Check the CPU Module, Field Connection board and the Power Supply
wiring. Ensure the terminal block wiring and connectors are making
good contact.
• 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.
• 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 (or E and H, or F and G) if a chord fails in either chord.
Note
Note that the outside chord cables cannot be exchanged with inner chord
cables.
Operations manual
DAN-20057316
(continued)
drawings).
Operations manual