ABB LST100 Operating Instructions Manual page 20

6 Calibration
4. Ensure the LST100 is measuring the short range
calibration point and select 3. Monitor Console from the
main menu.
Record the measured distance and the actual distance.
IMPORTANT (NOTE)
ABB recommends measuring the short range
calibration point when the tank is nearly full.
5. Ensure the LST100 is measuring the long range calibration
point and select 3. Monitor Console from the main menu.
Record the measured distance and the actual distance.
IMPORTANT (NOTE)
ABB recommends measuring the long range
calibration point when the tank is empty.
Enter B to return to the main menu.
6. Select 2. Calibration from the main menu. Configure
the following 4 parameters from the information noted
in Steps 4 and 5:
Measured value of P1: The measured short range
Actual value of P1:
Measured value of P2: The measured long range
Actual value of P2:
20 OI/LST100-EN | LST100 – Ultrasonic level transmitter
distance noted at Step 4
The actual short range distance
noted at Step 4
distance noted at Step 4
The actual long range distance
noted at Step 4
7. Set Enable User Calibration to YES. The calibration
is now active on the LST100.
Enter B to return to the main menu.
8. Select 3. Monitor Console from the main menu. Check
that the distance is within the LST100 transmitter's
specified accuracy.
IMPORTANT (NOTE)
Step 9 is applicable only if Operate Mode was
set to Level before calibration was performed.
9. Select 1. User Setup from the main menu and set
Operate Mode to Level (if required).