Emerson Rosemount 3308, Reference Manual

Page: 82 / 128

Reference Manual
00809-XXXX-4811, Rev AA
February 2012
Rosemount 3308
7-2
PRELIMINARY
ADVANCED
CONFIGURATION
This section covers non-standard configuration.
User defined Upper
Reference Point
If you want to specify your own Upper Reference Point you can do this by
setting the
Calibration Offset parameter.
Figure 7-1. Tank Geometry
To set the desired upper reference point do the following:
1. Adjust the Tank Height to the distance from the tank bottom to the
desired Upper Reference Point .
2. Add the distance between the Upper Reference Point and the
Transmitter Reference Point to the Calibration Offset value that is
stored in the transmitter database.
With the HART Communicator the Calibration Offset is available as
HART Fast Key sequence [1, 4, 5, 5].
In Radar Configuration Tool (RCT) the Calibration Offset is available
under the Advanced section in the RCT Project Bar:
Device Commands>Basic>Set Calibration Offset.
Tank Height
Product Level
Upper Reference Point
Transmitter
Reference Point
Calibration
Offset