164 UMFLUXUS_G6V4-2EN, 2011-03-29
FLUXUS G60x 22 Troubleshooting
An output does not work
Make sure that the outputs are configured correctly. Check the function of the output as
described in section 21.1.3. If the output is defective, contact FLEXIM.
A measurement is impossible or the measured values substantially differ from the
expected values
see section 22.1.
The values of the totalizer are wrong
see section 22.6.
22.1 Problems with the Measurement
A measurement is impossible because no signal is received. A question mark is
displayed in the lower line on the right
• Check if the entered parameters are correct, especially the outer pipe diameter, the
pipe wall thickness and the sound speed of the medium. (Typical errors: The circumfer-
ence or the radius was entered instead of the diameter. The inner pipe diameter was
entered instead of the outer pipe diameter.)
• Make sure that the recommended transducer distance was adjusted when mounting
the transducers.
• Make sure that an appropriate measuring point has been selected (see section 22.2).
• Try to establish better acoustic contact between the pipe and the transducers (see sec-
tion 22.3).
• Enter a lower value for the number of sound paths. The signal attenuation might be too
high due to a high medium viscosity or deposits on the inner pipe wall (see section
22.4).
The measuring signal is received but no measured values can be obtained
• An exclamation mark "!" in the lower line on the right indicates that the defined upper
limit of the flow velocity is exceeded and, therefore, the measured values are marked
as invalid. The limit must be adapted to the measuring conditions or the check must be
deactivated (see section 13.3).
• If no exclamation mark "!" is displayed, a measurement at the selected measuring
point is not possible.
Loss of signal during the measurement
• If the pipe had been pressureless: Was there no measuring signal afterwards? Contact
FLEXIM.
• Wait briefly until acoustic contact is reestablished. The measurement can be interrupt-
ed by a temporarily higher proportion of liquid and solids in the medium.
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