Baker Hughes Panametrics Sentinel LCT8, Руководство пользователя

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5.2 Error codes
5.2.1 Overview
If a problem occurs with the electronics or transducers, a
built-in error code message system greatly simplifies the
troubleshooting process.
All the possible
Sentinel LCT8 error code messages are
discussed in this chapter, along with the possible causes
and the recommended actions. When an error code is
generated, it will appear in the lower right corner of the
LCD screen, as discussed in Chapter 3 . Programming on
page 21 .
If an error message appears on the display screen during
operation of the Sentinel LCT8 , refer to the appropriate
section of this chapter for instructions on how to proceed.
You may be asked to contact Panametrics. It would be very
helpful to enter all of the diagnostic data and parameter
information for each channel in Appendix B . Service record
on page 113 prior to calling your local Panametrics sales
or service center.
5.2.2 General guidelines for troubleshooting
with error codes
Refer to Flow info on page 94 to identify the number of
channels reporting an error, then proceed to the appropriate
section below. Also, refer to Table 13 on page 91 for
causes and recommended actions for each error code.
5.2.2.1 Only one channel in error
If only one channel is in error, the most likely causes are:
• Incorrect programming of the
error limits or flow condition
changes that now make previous programming invalid.
• Defective or damaged cables, transducers, couplant,
buffer, or electronics.
If the error still exists after you have tried eliminating or
correcting the most likely causes mentioned above, check
for these process and/or flow conditions changes:
• Excessive turbulence
• Discontinuities in fluid characteristics such as: multi-
phase flow, flashing, pockets of gas, the presence of
bubbles or solid particles, cavitation, or rapidly changing
fluid type
• Extreme fluid properties, such as pressure or temperature
conditions
• Wax build-up on the face of a buffer/transducer, or
clogged transducer ports due to sedimentation
• A pipe that is not completely full
5.2.2.2 More than one channel in error
If more than one channel is in error, the most likely cause is
changes in process and/or flow conditions such as:
• Excessive turbulence
• Discontinuities in fluid characteristics such as: multi-
phase flow, flashing, pockets of gas, the presence of
bubbles or solid particles, cavitation, or rapidly changing
fluid type
• Extreme fluid properties, such as pressure or temperature
conditions
• Wax build-up on the face of a buffer/transducer, or
clogged transducer ports due to sedimentation
• A pipe that is not completely full
If the error still exists after you have tried eliminating or
correcting the most likely causes mentioned above, check
for the following:
• Incorrect programming of the
error limits or flow condition
changes that now make previous programming invalid.
• Defective or damaged cables, transducers, couplant,
buffer, or electronics.
If you are unable to clear the errors, collect diagnostic data
and parameter information for each channel and enter it
in Appendix B . Service record on page 113 prior to calling
your local Panametrics sales or service center. Refer to Flow
info on page 94 to gather the required diagnostics data.
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