Emerson Rosemount 2151N Reference Manual page 31

Reference Manual
00809-0000-4851 Rev AD
December 2023
Figure 3-1 – Zero and Span
Figure 3-2 – Electronics Assembly
Calibration
% Zero Offset
= (LRV/URL) X 100
Note: % Zero Offset is used when making coarse zero
adjustments and replaces the traditional % Zero Elevation and
% Zero Suppression terms. This concept is used due to the
limited interaction between zero and span adjustments on the
2151N pressure transmitter.
Sign Convention
Positive numbers indicate positive pressure is applied to the
high pressure side of the DP cell or a vacuum is applied to the
low pressure side of the DP cell. The high pressure side is
indicated on the sensor module by an "H".
Negative numbers indicate positive pressure is applied to the
low pressure side of the DP cell or a vacuum is applied to the
high pressure side of the DP cell. The low pressure side is
indicated on the sensor module by an "L".
Rosemount 2151N
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