Endress+Hauser Micropilot FMR50, Руководство по эксплуатации

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Micropilot FMR51, FMR52 HART Diagnostics and troubleshooting
Hauser 75
Error Possible cause Remdy
If measured distance (Setup
→ Distance) does not match the real
distance:
Interference echo Carry out tank mapping ( Confirm
distance parameter (→  111)).
No change of measured value
on filling / emptying Interference echo from installations,
nozzle or build-up on the antenna. • Carry out tank mapping ( Confirm
distance parameter (→  111)).
• If necessary, clean antenna
• If necessary, selet better mopunting
position
If the surface is not calm (e.g.
filling, emptying, agitator
running), the measured value
jumps sporadically to a
higher level Signal is weakened by the rough
surface - the interference echoes are
sometimes stronger. • Carry out tank mapping ( Confirm
distance parameter (→  111)).
• Select Tank type (→  107) =
Process vessel with agitator .
• Increase integration time (Expert
→ Sensor → Distance → Integration
time)
• Optimize orientation of the antenna
• If necessary, select a better mounting
position and/or larger antenna.
During filling/emptying the
measxured value jumps
downwards Multiple echoes • Check Tank type parameter
(→  107).
• If possible, do not select central
installation position.
• If appropriate, use a stilling well.
Error message F941 or S941
"Echo lost" Level echo is too weak. • Check Medium group parameter
(→  108).
• If necessary, select a more detailed
setting in Medium property
parameter (→  119).
• Optimize alignment of antenna
• If necessary, select a better
installation position and/or larger
antenna.
Level echo suppressed. Delete mapping and record it again.
Device displays a level when
the tank is empty. Interference echo Carry out mapping over entire
measuring range when the tank is
empty (
Confirm distance parameter
(→  111)).
Wrong slope of the level in
the entire measuring range Wrong tank type selected. Set Tank type parameter (→  107)
correctly.