Page 32/58IOM BiRotor Plus R27
10 Troubleshooting
General
The information in this section has been provided
as an aid for basic troubleshooting. Disassembly
procedures have been outlined in Chapter 10,
Maintenance. If the BiRotor Plus has been found
to be in need of repair it is recommended the
user contact the nearest Brodie Service Office or
Representative. It is important that servicing is
performed by trained and qualified personnel.
Condition Probable Cause Corrective Actions
No Pulse Output is present No flow through meter. Ensure the pipeline has flow.
Improper electrical connection. Ensure proper wiring connections have
been made.
Insufficient voltage to preamplifier (if
fitted).
Supply sufficient voltage to the pre-
amplifier board (reference Section 8,
Specifications).
Power failure. Ensure power is connected to the device
and all associated accessories.
Meter rotors jammed with debris. Remove debris from rotors, and check
for damage to rotors, timing gears, and
bearings (reference Section 9.4).
Damaged pick off/amplifier board. Replace pick offs/preamplifier board
(reference Sections 9.1 and 9.2).
Erratic or Nonuniform Pulse Signal Improper electrical connection. Ensure proper wiring connections have
been made.
Insufficient or fluctuating voltage to the
preamplifier board (if fitted).
Supply sufficient voltage to the pre-
amplifier board (reference Section 8,
Specifications).
Improper grounding or shielding of con-
nection cable.
Replace wiring and/or grounds and
shielding.
Power failure/damaged pick offs or pre-
amplifier board.
Ensure power supply and/or pick offs
and preamplifier board are functioning
as required (reference Sections 9.1 and
9.2).
Damaged/worn bearings or timing
gears.
Replace bearings and/or timing gears
(reference Sections 9.6 and 9.7).
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