Baker Hughes Panametrics PanaFlow Z3, User Manual

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Chapter 4. Error Codes and Troubleshooting
50 PanaFlow Z3 User’s Manual
E3: Velocity Range The measured velocity
exceeds programmed
limits This error may be caused by
incorrect programming,
poor flow conditions and/or
excessive turbulence Make sure the actual flow rate is
within the programmed Error limits
(Refer Programming Chapter). Refer
to
“Fluid and Pipe Problems” and
“Transducer Problems” sections to
correct any issues
E4: Signal Quality The signal quality is
lower than the
programmed limits This means the signal
shape, upstream to
downstream reciprocity, or
signal correlation value has
fallen below the correlation
peak limit. The cause is
usually the same as E6 or E5 Make sure the Signal Quality is greater
than the programmed Error limits
(Refer Programming Chapter). Refer
to
“Fluid and Pipe Problems” and
“Transducer Problems” sections to
correct any issues. Gather required
diagnostics data before contacting
BakerHughes
E5: Amplitude The signal amplitude
exceeds the
programmed limits This error may occur due to
high signal attenuation or
amplification due to
changes in fluid properties,
transducer/buffer/ couplant
issues Make sure the amplitude is within the
programmed limits.
If the gain is negative and Amplitude
> 32, change the Transmit Voltage to
“Low”. If it is still negative, enable
Attenuator. Do not enable Attenuator
if the Transmit Voltage is high.
If the gain is greater than 35 dB,
change the Transmit Voltage to
“High” (Refer Programming Chapter).
Refer to “Fluid and Pipe Problems ” and
“Transducer Problems” sections to
correct any issues. Gather required
diagnostics data before contacting
BakerHughes
E6: Cycle Skip A cycle skip is detected
while processing the
signal for
measurement This is usually due to
incorrect programming,
poor signal integrity,
possibly because of bubbles
in the pipeline, sound
absorption by very viscous
fluids, or cavitation. If this error is caused by changes in
flow rate, this error will be auto
corrected when flow rate stabilizes
after initial acceleration. But, if the
error stays refer to
“Fluid and Pipe
Problems” section to correct any
issues. Check Threshold Peak
percentage, and gather required
diagnostics data before contacting
BakerHughes
E15: Active Tw The Active Tw
measurement is
invalid A transducer, cable is
damaged, or a transducer
needs to be re-coupled. This
may also be due to
incorrect programming, or
extreme process
temperatures Refer to “Transducer Problems”
sections to correct any issues. In case
you are unable to clear the errors,
gather required diagnostics before
contacting BakerHughes
E22: Single
Channel Accuracy One of the
measurement
channels is in error One measurement channel
is in error; accuracy of the
measurement may be
compromised because the
meter might be using a
sister chord substitution Check individual channel errors, refer
to this table for recommended
actions to correct channel errors
Table 17: Flow Error description and Recommended Actions
Error Code Problem Cause Recommended Action