Endress+Hauser Levelflex FMP52, Руководство по эксплуатации, Страница: 71 / 198

Levelflex FMP55 HART Commissioning via operating menu
Hauser 71
11. Navigate to: Setup → Distance
 Displays the distance D
L
between the reference point R and the level L
L
.
12. Navigate to: Setup → Interface distance
 Displays the distance D
I
between the reference point R and the interface L
I
.
13. Navigate to: Setup → Signal quality
 Displays the signal quality of the level echo.
14. For operation via local display:
Navigate to: Setup → Mapping → Confirm distance
 Make sure the vessel is completely empty. Then select Tank empty option.
15. For operation via operating tool (e.g. FieldCare):
Navigate to: Setup → Confirm distance
 Make sure the vessel is completely empty. Then select Tank empty option.
NOTICE
Wrong dielectric constant of the lower medium may cause a measuring error.
‣
If, in the case of Operating mode = Interface with capacitance , the lower medium is
not water, it is necessary to specify its dielectric constant (DC value): Setup → Advanced
setup → Interface → DC value lower medium
NOTICE
Wrong empty capacitance may cause a measuring error.
‣
For rod and rope probes with Operating mode = Interface with capacitance a correct
measurement is only possible if the empty capacitance has been determined. To do so,
make sure that the vessel is completely empty and set Confirm distance = Tank
empty . Only in exceptional cases (if the tank can not be emptied during the
commissioning) the empty capacitance of rod probes may be entered manually: Expert
→ Sensor → Interface → Empty capacitance.
For coax probes the correct empty capacitance is always set on delivery.