Endress+Hauser Levelflex FMP55 Operating Instructions Manual page 73

Levelflex FMP55 FOUNDATION Fieldbus
Endress+Hauser
11. Navigate to: Setup → Distance
 Displays the distance D
12. Navigate to: Setup → Interface distance
 Displays the distance D
13. Navigate to: Setup → Signal quality
 Displays the signal quality of the analyzed level echo.
14. Operation via local display:
Navigate to: Setup → Mapping → Confirm distance
 Ensure that the tank is fully drained. Then select the Tank empty option.
15. Via an operating tool (e.g. FieldCare):
Navigate to: Setup → Confirm distance
 Ensure that the tank is fully drained. Then select the Tank empty option.
NOTICE
Wrong measurement due to incorrect dielectric constant of the lower medium
‣
The dielectric constant (DC value) of the lower medium must be specified if the lower
medium is not water when Operating mode = Interface with capacitance. Navigation:
Setup → Advanced setup → Interface → DC value lower medium
NOTICE
Wrong measurement due to incorrect empty capacitance
‣
In the case of rod and rope probes in the bypass, a correct measurement is only possible
for Operating mode = Interface with capacitance after the empty capacitance has
been determined. For this purpose, select Confirm distance = Tank empty after
installing the probe when the tank is completely empty.A calculated empty capacitance
can be entered for rod probes in the following parameters in exceptional cases only (if
the tank cannot be emptied during commissioning): Expert → Sensor → Interface
→ Empty capacitance.
The empty capacitance is always calibrated ex works in the case of coax probes.
Commissioning via operating menu
between the reference point R and the level L
L
between the reference point R and the interface L
I
.
L
.
I
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