Endress+Hauser Liquicap M FMI51 HART - Function Switch: Position 4. Measuring Modes; Function Switch: Position 5. Measuring Range

Commissioning Liquicap M FMI51 HART
42 Endress+Hauser
2.
Press  or  key for 2 s.
3. Connect the multimeter to the current pick-off.
4. Set the ordered electric current value < 20 mA.
5. Release the key.
 The full calibration is saved.
7.2.6 Function switch: position 4. Measuring modes
Before carrying out empty and full calibration, the medium properties must be
configured. If the medium is conductive and tends to form buildup, the "Buildup"
operating mode must be selected.
In this operating mode, the buildup on the probe rod is compensated.
The "No buildup" operating mode is set at the factory.
Subfunction: "Medium property"
The No buildup operating mode should be set for media that do not tend to form buildup
on the probe rod (e.g. water, beverages). As of conductivity of 100 µS/cm like all water-
based liquids such as acids, alkalis, the measured value is independent of the conductivity
of the liquid (independent of concentration fluctuations).
In the Buildup operating mode, the buildup compensation function integrated into the
software is activated. In this operating mode, the measured value is independent of the
conductivity of the liquid as of conductivity of 1 000 µS/cm (independent of concentration
fluctuations).
This compensates measuring errors caused by conductive media sticking to the probe rod
such as yogurt. This corresponds to buildup compensation.
To choose between media forming buildup and media not forming buildup:
1. Turn the function switch to position 4.
2.
Press  key for media that tend to form buildup.
 The green LED confirms your entry by flashing three times.
3.
Press  key for media that do not form buildup.
 The green LED confirms your entry by flashing three times.
7.2.7 Function switch: position 5. Measuring range
At the factory, the measuring range is always calibrated to the ordered probe length. If the
electronic insert is used in another probe, the measuring range must be configured in
accordance with the probe length.
To configure the measuring range 2 000 pF for probe length < 6 m (20 ft) or 4 000 pF for
probe length > 6 m (20 ft):
1. Turn the function switch to position 5.
2.
Press  to set measuring range 2 000 pF
 The green LED flashes three times - the value is set.
3.
Press  to set measuring range 4 000 pF
 The green LED flashes three times - the value is set.