Verify Level - Emerson Rosemount 3308A Reference Manual

Reference Manual
00809-0100-4308, Rev BB
4.7

Verify Level

Run the Verify Level tool to match the product level reported by the device to a reference measurement
(measured by using for example handgauging). If any difference, the Calibration Offset parameter will be
adjusted as shown in
A minor adjustment using Calibration Offset is normal. There may, for example be a deviation between
the actual tank height and the configured value.
Non-metallic (e.g. plastic) vessels and installation geometry may introduce an offset for the Upper
Reference Point. This offset may be up to ± 2 in. (50 mm). The offset can be compensated for using
Calibration Offset.
Note
Before running Verify Level, make sure the product surface is calm, the tank is not being filled or
emptied, and the actual level is well above the probe end.
To run Verify Level, do the following:
1. From the Home screen, select Configure.
2. Go to Guided Setup > Initial Setup.
3. Select Verify Level to check your level measurement, and follow the instructions.
Figure 4-15. Calibration Offset
A. Positive Calibration Offset value
B. Negative Calibration Offset value
Configuration
Figure 4-15.
A
B
C. Reported level
D. Actual level
Configuration
October 2016
C
D
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