ABB LST300 - Wet calibration

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LST300 | COMPACT ULTRASONIC LEVEL TRANSMITTER | LST300–EN REV. E
Dry calibration procedure
1 Log on to the LST300 at the Standard or Advanced level.
2 Select Calibrate from the main menu.
3 Select Calibration from the “Calibrate” submenu.
4 Select Dry from the “Calibration” submenu.
5 Configure the four parameters in this menu using the data
already obtained earlier in section “Dry calibration”.
The level dry calibration is immediately active on the LST300.
Wet calibration
Wet calibration can be done in position, and the measurement
is performed directly from the calibration menu. No
measurement is required prior to calibration. It is however
required that the level can be adjusted to the calibration
positions while performing the calibration.
Wet calibration procedure
1 Follow the steps 1 to 3 in section “Dry calibration procedure”
to navigate to the “Calibration” submenu.
2 Select Wet from the “Calibration” submenu.
3 Ensure the LST300 is measuring the upper calibration point,
by ensuring the conditions as indicated in figure 26 “Upper
calibration point measured”.
Figure 30 Upper calibration point measured
4 Configure the Upper Level Point as the known value of the
level at a position close to the top of the tank.