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Reference Manual
00809-0100-4388, Rev BA
January 2008
Rosemount 1153 Series D
www.rosemountnuclear.com
Section 3 Calibration
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1
Calibration Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-3
OVERVIEW Each transmitter is factory calibrated to the range specified by the customer.
This section contains the following transmitter calibration information:
• Calibration
Span Adjustment
Zero Adjustment
• Calibration Procedures
Span and Zero Adjustment
Linearity Adjustment
Damping Adjustment
Correction for High Line Pressure
CALIBRATION The Rosemount 1153DD, HD, GD, and AD Transmitters are factory calibrated
to the range shown on the nameplate. This range may be changed within the
limits of the transmitter. Zero may also be adjusted to elevate (for all models
except the Rosemount 1153AD) or suppress (for all models). The span and
zero adjustments are external and located under the nameplate.
Span Adjustment The span on any Rosemount 1153 Series D Pressure Transmitter is
continuously adjustable to allow calibration anywhere between maximum
span and
1
/6 of maximum span (¼ of maximum span for Range 0). For
example, the span on a Range Code 4 transmitter can be continuously
adjusted between 0–150 and 0–25 inH
2
O.
Zero Adjustment The zero can be adjusted for up to 500 percent of span suppression
(300 percent for Range code 0) or 600 percent of span elevation
(400 percent for Range code 0) (see Figure 3-1 on page 3-2).
The zero may be elevated or suppressed to these extremes with the limitation
that no applied pressure within the calibrated range exceeds the full-range
pressure limit. For example, a Range Code 4 transmitter cannot be calibrated
for 150 to 200 in H
2
O (only 300 percent zero suppression) because the 200 in
H
2
O exceeds the 150 inH
2
O upper range pressure limit of a Range Code 4.
The transmitter may be calibrated to cross zero (e.g., –75 to 75 inH
2
O) but
this may result in a slight loss of linearity