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Reference Manual
00809-0100-4811, Rev CA
February 2006
Rosemount 3300 Series
6-12
To set the Upper Null Zone do one of the following:
1. Select the HART command [1, 3, 3, 1].
2. Enter the desired value,
or
1. Start the Radar Configuration Tool (RCT).
2. Click the Setup icon in the RCT workspace Project Bar.
3. Choose the Tank Config tab in the Setup window.
4. Click the Receive Page button.
5. Type the desired value in the Upper Null Zone field.
6. Click the Send Page button. Now the Upper Null Zone is stored in the
transmitter memory.
Figure 6-8. Upper Null Zone
Figure 6-9. Identifying the Upper
Null Zone in the RCT Waveform
Plot
Reference Gauge Height
Upper Null
Zone
Product Level
Upper Reference Point
UPPERNULLZONE
Upper Null Zone
Disturbance
WAVEFORMPLOT_UNZ