84
Reference Manual
00809-0100-4809, Rev DA
Section 5: Troubleshooting
September 2015
Troubleshooting
Erratic Signal/
Negative Reading/
No reading
Annubar sensor is installed
backwards
•Verify that the flow arrow on the instrument connections of the
Annubar sensor is pointing in the direction of flow.
Annubar sensor is broken or
missing
•Remove sensor and verify that the Annubar sensing element is in
tact and undamaged.
Instrument valves are closed •Verify the high and low instrument valves are open.
Annubar Flowmeter is
mounted too close to flow
disturbance
•Verify the installation and compare with recommended installation
distances from disturbances as shown in Installation section of this
manual.
Air in instrument impulse lines
(liquid applications)
•Reinstall impulse lines, eliminating high areas in which air can
collect.
Noisy DP signal from vertical
down steam or liquid
application
•Relocate Annubar sensor to a location that is not vertical down or
use the transmitter dampening to smooth out the DP signal.
Annubar sensor too
long or too short
Pipe dimensions were not
properly supplied
•Verify the actual pipe ID and wall dimensions and compare to the
Calculation Data Sheet.
•Consult Factory if dimensions do not match.
The mounting hardware
supplied is not the correct
length
•Check mounting height and compare to the dimensions shown in
the Dimensional Drawings.
•Consult factory if dimensions do not match.
Annubar sensor looks too long
(Pak-lok or Flange-lok Models)
•Verify the actual pipe ID and wall dimensions and compare to the
Calculation Data Sheet.
•Consult factory if dimensions do not match.
•Review the installation instructions found in section 2 and review
the images of a proper installation.
Opposite Side Support is not
installed on pipe
•Install Opposite side support (if required by Annubar sensor model)
as specified in the installation instructions found in Section 2:
Installation.
Annubar sensor
won't fit in the
drilled hole
Drill hole is not the proper size
•Verify that the drill hole matches the size specified in the
installation instructions found in Section 2: Installation.
•Re-drill the mounting hole with proper drill hole size.
Drill hole is not aligned
properly with Annubar sensor
mounting hardware
•Verify that the mounting hardware is centered over pipe hole.
•If necessary, re-install mounting hardware.
Hole was torch-cut (pipe
fragments blocking hole)
•Re-Drill the hole in a different location as specified in the
installation instructions found in Section 2: Installation.
Table 5-1. Troubleshooting Guide
Symptom Possible cause Corrective action
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