Publicité
FLUXUS F831
Tab. D.2 : Aperçu général des événements prédéfinis
ID
catégorie
message
6.24
F
Fluid sound speed of a sound path out of
range
6.25
M
Max. gain of measuring point nearly exceeded
6.26
M
Max. gain of measuring point exceeded
6.27
M
Signal-to-noise ratio of the measuring point
low
6.28
M
Signal-to-noise ratio of the measuring point
too low
6.29
M
Signal-to-correlated-noise ratio of the
measuring point low
6.30
M
Signal-to-correlated-noise ratio of the
measuring point too low
6.31
M
Signal quality of the measuring point low
6.32
M
Signal quality of the measuring point too low
6.37
M
Measured sound speed of the measuring point
lower than expected
6.38
M
Measured sound speed of the measuring point
much lower than expected
6.39
M
Measured sound speed of the measuring point
higher than expected
UMFLUXUS_F831V1-4FR, 2023-10-01
D Auto-surveillance et diagnostic (NAMUR NE 107)
action
1. Check selected fluid
2. Modify fluid dataset
3. Pipe noise too high. Check for gain, SNR, SCNR.
1. Check transducer coupling (coupling foil)
2. Deposits on inner pipe wall: check measurement
arrangement
3. Fluid damping: check multiphase issues
4. Gas: check min. fluid pressure
1. Check transducer coupling (coupling foil)
2. Deposits on inner pipe wall: check measurement
arrangement
3. Fluid damping: check multiphase issues
4. Gas: check min. fluid pressure
1. Check gain
2. Check electrical connection, shielding and grounding
of transducers
3. Check for acoustic noise at measuring point
1. Check gain
2. Check electrical connection, shielding and grounding
of transducers
3. Check for acoustic noise at measuring point
1. Check gain
2. Check electrical connection, shielding and grounding
of transducers
3. Check for acoustic noise at measuring point
1. Check gain
2. Check electrical connection, shielding and grounding
of transducers
3. Check for acoustic noise at measuring point
1. Check transducer distance
2. Correlation factor of upstream and downstream signal
low. Check for gain, SNR, SCNR, max. flow velocity.
1. Check transducer distance
2. Correlation factor of upstream and downstream signal
too low. Check for gain, SNR, SCNR, max. flow velocity.
1. Check selected fluid
2. Check temperature
3. Check pressure
4. Check measurement arrangement
1. Check selected fluid
2. Check temperature
3. Check pressure
4. Check measurement arrangement
1. Check selected fluid
2. Check temperature
3. Check pressure
4. Check measurement arrangement
Appendice
227
Publicité
