Endress+Hauser Levelflex FMP53 Operating Instructions Manual page 130

Operating menu
Signal quality
Navigation
Description
Additional information
Confirm distance
Navigation
Description
Selection
Additional information
4) Of these two echos the one with the lower quality is indicated.
* Visibility depends on order options or device settings
130
 Setup → Signal quality
Displays the signal quality of the evaluated echo.
Meaning of the display options
• Strong
The evaluated echo exceeds the threshold by at least 10 mV.
• Medium
The evaluated echo exceeds the threshold by at least 5 mV.
• Weak
The evaluated echo exceeds the threshold by less than 5 mV.
• No signal
The device does not find a usable echo.
The signal quality indicated in this parameter always refers to the currently evaluated
echo: either the level/interface echo
these two, the quality of the end-of-probe echo is always displayed in brackets.
In case of a lost echo (Signal quality = No signal) the device generates the following
error message:
• F941, for Output echo lost (→  153) = Alarm.
• S941, if another option has been selected in Output echo lost (→  153).
 Setup → Confirm distance
Specify, whether the measured distance matches the real distance.
Depending on the selection the device automatically sets the range of mapping.
• Manual map
• Distance ok
• Distance unknown
*
• Distance too small
*
• Distance too big
• Tank empty
• Delete map
Meaning of the options
• Manual map
To be selected if the range of mapping is to be defined manually in the Mapping end
point parameter (→  131). In this case it is not necessary to confirm the distance.
• Distance ok
To be selected if the measured distance matches the actual distance. The device
performs a mapping.
• Distance unknown
To be selected if the actual distance is unknown. A mapping can not be performed in this
case.
Levelflex FMP53 FOUNDATION Fieldbus
4)
or the end-of-probe echo. To differentiate between
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