LRF-3300S Ultrasonic Transit-time Flow meter
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6. Error Diagnoses
The ultrasonic flow meter has advanced self-diagnostics functions and displays any errors in the upper right
corner of the LCD via definite codes in a date/time order. Some errors can be detected during normal operation.
Undetectable errors caused by unskilled operation, incorrect settings and unsuitable measurement conditions can
be displayed accordingly during work. This function helps the user detect the errors and find causes quickly; thus,
problems can be solved in a timely manner according to the solutions listed in the following table.
If a problem still exists, please contact the factory or the factory’s local representative for assistance.
6.1. Table 1. Error Codes and Solutions (during operation)
Codes
The upper right corner
of the screen
Causes
Solutions
*R
System Normal
* System normal.
*E
Signal Not Detected
* Signal not detected.
* Spacing is not correct
between the transducers
or not enough coupling
compound applied to
face of transducers.
* Transducers installed
improperly.
* Scale is too thick.
* New pipe liner.
* Attach transducer to the pipe and
tighten it securely. Apply a plenty
of
coupling
compound
on
transducer and pipe wall.
* Remove any rust, scale, or loose
paint from the pipe surface. Clean it
with a file.
* Check the initial parameter
settings.
* Remove the scale or change the
scaled pipe section. Normally, it
is
possible
to
change
a
measurement
location.
The
instrument may run properly at a
new site with less scale.
* Wait until liners solidified and
saturated.
*D
Adjusting Gain
* Adjusting gain for
normal measurement.
