EES-401 Series Ultrasonic Energy Meter
Revision: 3.0.1
Page 51 of 90
8
Error Diagnoses
The ultrasonic Flowmeter has advanced self-diagnostics functions and displays any errors on the LCD via definite
codes in a date/time order. Hardware error diagnostics are usually performed upon each power on. Some errors
can be detected during normal operation. Undetectable errors caused by incorrect settings and unsuitable
measurement conditions can be displayed accordingly. This function helps to detect the errors and determine
causes quickly; thus, problems can be solved in a timely manner according to the solutions listed in the following
tables.
Table 1 applies when errors caused by incorrect settings and signals are detected and are announced by error
codes displayed in Window M08.
If a problem still exists, please contact the factory or the factory
’
s local representative for assistance.
8.1
Table 1. Error Codes and Solutions (During Operation)
C o d e
M08 Display
Cause
Solutions
*R
System Normal
* System normal
*I
NO Signal 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.
*G
Adjusting Gain
The machine is adjusting for
gain,preparing for normal
calibration.
*J
Memory Error
Storage error in power
supply system
Repair
Measure Uart Error
Communication error
between power supply
system and measurement
system
Repair
Measure Memery Error
Storage error in measurement
system
Repair