Prosonic M FMU41 HART
Commissioning
Hauser
27
Selection and description
•
Distance = ok
→ the correct distance is displayed
Any echoes closer to the sensor will be suppressed by the subsequent interference echo
suppression (mapping).
•
Dist. too small
→ the displayed distance is too small
In this case, the signal comes from an interference echo and will be suppressed by the
subsequent interference echo suppression.
•
Dist. too big
→ the displayed distance is too big
• The error cannot be rectified by suppressing the interference echo. Two functions that
follow are then skipped.
• Check the application parameters:
Tank shape (002)
,
Medium properties (003),
Process cond. (004)
and in the function group
Basic setup (00)
→
Empty calibration
(005)
•
Dist. unknown
→ the actual distance is not known
Two functions that follow are then skipped.
•
Manual
→ you can specify the mapping range yourself in the following function
Range of mapping (052) function
• The range of mapping is displayed, confirm the proposed value or enter your own value
• The sensor membrane is always the reference point
• The value can be edited by the user
• For manual suppression (mapping), the default value is 0 m
The mapping range must end 0.5 m (1.6 ft) before the echo of the actual level. If the
tank is empty enter E – 0.5 m instead of E.
Start mapping (053) function
Selection
• Off: no mapping
• On: mapping starts
If a mapping already exists, it will be overwritten up to the distance specified. The
existing mapping remains unchanged beyond this distance.
Dist./meas.value function (008)
Information displayed after mapping
Distance measured from the sensor membrane to the product surface
Check whether the values displayed match the actual distance or actual level.
The following situations can occur:
• Distance and level correct:
Basic setup
completed
• Distance and level incorrect: perform another mapping in the
Check distance (051)
function
• Distance is correct but the level is incorrect: check the value in the
Empty calibration (005)
function
Return to group selection
After the mapping has been recorded the basic setup is finished and the device
automatically returns to the group selection.
