
101
Reference Manual
00809-0100-4811, Rev DA
Section 6: Service and Troubleshooting
January 2015
Service and Troubleshooting
6.3.2 Level and distance calibration
When calibrating the transmitter, it is important that the product surface is calm and the tank is
not being filled or emptied.
A complete calibration is performed in two steps:
1. Calibrate distance measurement by adjusting the calibration offset parameter.
2. Calibrate level measurement by adjusting the reference gauge height.
Distance calibration
1. Measure the actual distance between the upper reference point and the product
surface.
2. Adjust the calibration offset so that the distance measured by the transmitter
corresponds to the actual distance.
The calibration offset parameter is available via HART command [1, 4, 5, 5],
or
RCT: open the Tools section in the project bar and select Device Commands > Basics >
Set Calibration Offset.
Level calibration
1. Measure the actual product level.
2. Adjust the reference gauge height so that the measured product level corresponds to
the actual level.
Figure 6-7. Distance and Level Calibration
Level
Reference point
Reference gauge
height
Distance
Reference point
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