Daniel 3410 Series Gas Ultrasonic Meter Operations Manual
Troubleshooting comm., mech., and elec.
3-9000-777 Rev E
January 2018
Mechanical/electrical troubleshooting
147
C.2 Mechanical/electrical troubleshooting
This section is meant to assist site maintenance and operations personnel trained in the
operation of the ultrasonic flow meter and knowledgeable in basic mechanical and electronic/
electrical troubleshooting techniques, using lap top computers as well as digital volt/ohm
meters. Great care should be taken not to “short out” a given electronic/electrical circuit when
Troubleshooting.
Table C-1 Mechanical/Electrical Troubleshooting
Problem
Solution(s)
no power to the unit
•
Check for correct voltage (AC or DC) to the input of the Field Connection Board.
(
see Appendix F:
, System Wiring Diagram).
•
Check the main power source for blown fuse or tripped circuit breaker. Reference
your “as built” installation drawings for your location.
•
Check the fuses on the Field Connection Board. Reference fuse F1 and F2 locations.
cannot communicate with Daniel
MeterLink program
•
Ensure that the meter is properly powered.
•
Ensure that the computer cable is properly connected to the field connection board
(
see Appendix F:
) for the connector and check your interface pins (RS-485 or RS-
232).
•
Verify that the communication parameters of the Daniel MeterLink program are set
according to jumpers on the meter CPU board.
See Section 2.1
of this manual for
instructions on configuring communications.
•
Check switch S-1 on the field connection board and ensure that it is in the correct
position
(RS-485 or RS-232 communication). Note that S1 is located at the top left side of
the board.
one or more of the chords is not
indicating a reading (reporting
zeros)
•
Check for loose connections at the cable connectors. (
see Appendix F:
).
•
Check the resistance of the transducers (should be approximately 1-2
Ω
).
•
Problem also may be caused by a bad Acquisition board or interconnect cable.
see
Appendix F:
drawing for more information
•
Check system status in Daniel MeterLink, Meter|Monitor for any flagged errors.
•
Check the CPU board LEDs.
wave form 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 Daniel Customer Service 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 MeterLink
for contact information.
connected communication line to
the flow computer but no signal is
received
•
Check for loose connections at the flow meter and the flow computer (
see
Appendix F:
).
•
Check the CPU Module, Field Connection board and the Power Supply wiring. Make
sure the terminal block wiring and connectors are making good contact.
