Endress+Hauser Solicap M FTI56 - Page 72

Commissioning Solicap M FTI55, FTI56
72 Endress+Hauser
6.4.2 Performing calibration
!
Note!
• An empty and full calibration provides the greatest possible operational security. This is
particularly recommended for critical applications.
• The empty and full calibration measures the capacitance values of the probes when the tank is full
and when it is empty. If, for example, the measured capacitance value of the empty calibration is
50 pF and that of the full calibration is 100 pF, the average capacitance value, 75 pF, is stored as
the switch point.
Carrying out empty calibration
To carry out an empty calibration, proceed as follows:
1. Check to make sure that the probe is not covered with product.
2. Before calibrating, select the "uncovered" probe state on DIP switch D.
3. Press keys A and B simultaneously for at least 2 s to save the calibration value.
4. The green LED 1 flashes quickly to indicate that the value has been saved correctly.
The process of saving the empty calibration value is finished once green LED 1 flashes slowly again.
Carrying out full calibration
To carry out a full calibration, proceed as follows:
1. Make sure that the probe is covered by the medium up to the desired switch point.
2. Before calibrating, select the "covered" probe state on DIP switch D.
3. Press keys A and B simultaneously for at least 2 s to save the calibration value.
4. The green LED 1 flashes quickly to indicate that the value has been saved correctly.
The process of saving the empty calibration value is finished once green LED 1 flashes slowly again.
DIP switch: C Function
D
The probe is covered during calibration.
D
The probe is uncovered during calibration.