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PanaFlow Z3 User’s Manual 49
Chapter 4. Error Codes and Troubleshooting
Figure 41: Viewing Flow Diagnostics
Table 17: Flow Error description and Recommended Actions
Error Code Problem Cause Recommended Action
E1: SNR The Signal to Noise
ratio is low The acoustic signal from the
process is very low. This
could be due to bubbles,
other fluid conditions, an
empty pipe, broken cables,
transducers, couplant or
buffers Check if the Active Tw measurement
on upstream and downstream
transducers is valid. If Active Tw
measurement is valid then this error is
an indication of the problem with the
process conditions.
If Active Tw measurement is not valid
then check the value entered in SNR
Min Error Limits option (Refer
Programming Chapter). Also, refer to
“Fluid and Pipe Problems” and
“Transducer Problems” sections to
correct for any issues
E2: Soundspeed The measured sound
speed exceeds
programmed limits The error may be caused by
incorrect programming,
poor flow conditions or poor
transducer orientation. It
may also occur if signal
quality is poor Compare the measured sound speed
to programmed nominal values for
the process fluid and correct any
programming errors. Refer to “Fluid
and Pipe Problems” and “Transducer
Problems” sections to correct for any
issues. In case you are unable to clear
the errors, gather the required
diagnostics before contacting
BakerHughes
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