Micropilot FMR56, FMR57 FOUNDATION Fieldbus
Diagnostics and troubleshooting
Hauser
95
13
Diagnostics and troubleshooting
13.1 General trouble shooting
13.1.1 General errors
Error
Possible cause
Remedial action
Device does not respond.
Supply voltage not connected.
Connect the correct voltage.
The cables do not contact the
terminals properly.
Ensure electrical contact between the
cable and the terminal.
Values on the display
invisible
Contrast setting is too weak or too
strong.
• Increase contrast by pressing and
simultaneously.
• Decrease contrast by pressing and
simultaneously.
The plug of the display cable is not
connected correctly.
Connect the plut correctly.
Display is defective.
Replace display.
"Communication error" is
indicated on the display when
starting the device or
connecting the display
Electromagnetic interference
Check grounding of the device.
Broken display cable or display plug.
Exchange display.
CDI communication does not
work.
Wrong setting of the COM port on
the computer.
Check the setting of the COM port on
the computer and change it if necessary.
Device measures incorrectly.
Parametrization error
Check and adjust parameterization.
13.1.2 Parametrization errors
Error
Possible cause
Remedy
Measured value incorrect
If measured distance (Setup
→ Distance) matches the real
distance:
Calibration error
• Check and adjust
Empty calibration
parameter (→ 128) if necessary.
• heck and adjust
Full calibration
parameter (→ 129) if necessary.
• Check and adjust linearization if
necessary (
Linearization
submenu
Wrong level correction
Enter correct value in
Level correction
parameter (→ 141).
If measured distance (Setup
→ Distance) does not match the real
distance:
Interference echo
Carry out tank mapping (
Confirm
distance
parameter (→ 131)).
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
• If possible, align antenna in the
direction of the solid surface in order
to prevent interference echoes.
• If necessary, clean antenna (purge
air).
• If necessary, select a better mounting
position and/or larger antenna.
Summary of Contents for Micropilot FMR56
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