Endress+Hauser Liquicap M FMI51 HART - Function Switch: Position 1. Operation; Function Switch: Position 2. Carry out Empty Calibration - for Empty Tanks; Function Switch: Position 2. Carry out Empty Calibration - for Almost Empty Tanks

Commissioning Liquicap M FMI51 HART
40 Endress+Hauser
1
2
3
4
5
6
4.0 mA
V~
V=
A
-
+
4...20mA
-
+
+ -
1
7
3
5
1 2
A0040485
 18 FEI50H electronic insert
1
Key 
2 Green LED - operational status
3 Mode switch
4 Red LED - fault
5
Key 
6 Current pick-off 4 to 20 mA
7.2.1 Function switch: position 1. Operation
In normal operation, the function switch must be set to position 1.
7.2.2 Function switch: position 2. Carry out empty calibration - for
empty tanks
When the tank is empty (0 %), the empty calibration sets the signal current to the lower
value of 4 mA. When empty calibration is completed, the electric current value of 4 mA is
displayed at the ammeter.
To perform empty tank calibration:
1. Turn the function switch to position 2.
2.
Press the  and  keys together for 2 s until the green or red LED flashes.
3. Release the two keys.
4. The flashing stops after 5 s.
 Empty calibration is saved.
7.2.3 Function switch: position 2. Carry out empty calibration - for
almost empty tanks
If possible, the exact tank level should be known and should not exceed < 30 %.
Exceeding the permitted tank level reduces the accuracy of the zero-point that corresponds
to the empty tank. An ammeter must be connected to the current pick-off at the electronic
insert. For example, the level was determined for 15 %, the electric current value that
corresponds to that 15 % must be determined.