GE CTF878, Руководство пользователя и обслуживания

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Troubleshooting 4-1
February 2009
Introduction
The CTF878 is a reliable instrument that is easy to maintain. It will
provide accurate flow measurement readings as long as it is operated
as described in this manual. If problems do arise with the electronics,
the pipe, the fluid, or the transducers, the CTF878 displays an error
message specifying the possible problem. The CTF878 also has a set
of diagnostic parameters to help you find and remedy the problem.
In general, troubleshooting may be necessary if the CTF878 displays
an error message, the flow readings are erratic, or you have other
reasons to doubt the accuracy of readings (for example, readings do
not agree with other flow measuring devices connected to the same
process).
This section describes error messages and diagnostic parameters, and
shows you how to isolate problems to one of the following areas:
•
Electronics, including programmed values
•
Pipe and fluid
•
Transducers and cables.
Error Code Messages
Error Code messages appear on the screen while you are displaying
measurements. When logs appear in graph form, errors are indicated
by a vertical gray bar at the point of error. When they appear in a
spreadsheet format, errors are indicated by their number, in place of
the measurement. The Error Code messages are only general
descriptions of the possible problems. Use Table 4-1 on page 4-2 to
isolate and remedy the problem. If you are unable to remedy the
problem, contact the factory.